{"id":542,"date":"2021-10-19T09:08:32","date_gmt":"2021-10-19T01:08:32","guid":{"rendered":"https:\/\/blog.frost-s.tk\/?p=542"},"modified":"2021-12-16T22:59:14","modified_gmt":"2021-12-16T14:59:14","slug":"%e9%ab%98%e5%be%b7%e6%89%93%e8%bd%a6%e9%80%9a%e7%94%a8%e5%8f%af%e7%bc%96%e6%8e%92%e8%ae%a2%e5%8d%95%e7%8a%b6%e6%80%81%e6%9c%ba%e5%bc%95%e6%93%8e%e8%ae%be%e8%ae%a1%ef%bc%88%e8%bd%ac%e8%bd%bd%ef%bc%89","status":"publish","type":"post","link":"https:\/\/blog.frost-s.com\/index.php\/2021\/10\/19\/%e9%ab%98%e5%be%b7%e6%89%93%e8%bd%a6%e9%80%9a%e7%94%a8%e5%8f%af%e7%bc%96%e6%8e%92%e8%ae%a2%e5%8d%95%e7%8a%b6%e6%80%81%e6%9c%ba%e5%bc%95%e6%93%8e%e8%ae%be%e8%ae%a1%ef%bc%88%e8%bd%ac%e8%bd%bd%ef%bc%89\/","title":{"rendered":"\u9ad8\u5fb7\u6253\u8f66\u901a\u7528\u53ef\u7f16\u6392\u8ba2\u5355\u72b6\u6001\u673a\u5f15\u64ce\u8bbe\u8ba1\uff08\u8f6c\u8f7d\uff09"},"content":{"rendered":"\n

\u7b80\u4ecb\uff1a<\/strong> \u8ba2\u5355\u72b6\u6001\u6d41\u8f6c\u662f\u4ea4\u6613\u7cfb\u7edf\u7684\u6700\u4e3a\u6838\u5fc3\u7684\u5de5\u4f5c\uff0c\u8ba2\u5355\u7cfb\u7edf\u5f80\u5f80\u90fd\u4f1a\u5b58\u5728\u72b6\u6001\u591a\u3001\u94fe\u8def\u957f\u3001\u903b\u8f91\u590d\u6742\u7684\u7279\u70b9\uff0c\u8fd8\u5b58\u5728\u591a\u573a\u666f\u3001\u591a\u7c7b\u578b\u3001\u591a\u4e1a\u52a1\u7ef4\u5ea6\u7b49\u4e1a\u52a1\u7279\u6027\u3002\u5728\u4fdd\u8bc1\u8ba2\u5355\u72b6\u6001\u6d41\u8f6c\u7a33\u5b9a\u6027\u7684\u524d\u63d0\u4e0b\u3001\u53ef\u6269\u5c55\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u662f\u6211\u4eec\u9700\u8981\u91cd\u70b9\u5173\u6ce8\u548c\u89e3\u51b3\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n

\"image.png\"\/<\/div><\/figure>\n\n\n\n

\u4f5c\u8005 | \u4eae\u8a00 \u6765\u6e90 | \u963f\u91cc\u6280\u672f\u516c\u4f17\u53f7<\/p>\n\n\n\n

\u4e00 \u80cc\u666f<\/h3>\n\n\n\n

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\u4e8c \u5b9e\u73b0\u65b9\u6848<\/h3>\n\n\n\n

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\u72b6\u6001\u6a21\u5f0f\u7684\u5e94\u7528<\/strong><\/p>\n\n\n\n

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\u8fd9\u4e0d\u4ec5\u4ec5\u662f\u4ece\u53ef\u6269\u5c55\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u7684\u89d2\u5ea6\u51fa\u53d1\uff0c\u5176\u5b9e\u6211\u4eec\u505a\u67b6\u6784\u505a\u7a33\u5b9a\u6027\u3001\u9694\u79bb\u662f\u4e00\u79cd\u51cf\u5c11\u5f71\u54cd\u9762\u7684\u57fa\u672c\u624b\u6bb5\uff0c\u7c7b\u4f3c\u7684\u9694\u79bb\u73af\u5883\u505a\u7070\u5ea6\u3001\u5206\u6279\u53d1\u5e03\u7b49\uff0c\u8fd9\u91cc\u4e0d\u505a\u6269\u5c55\u3002<\/p><\/blockquote>\n\n\n\n

\"image.png\"\/<\/div><\/a><\/figure>\n\n\n\n
\/**\n * \u72b6\u6001\u673a\u5904\u7406\u5668\u63a5\u53e3\n *\/\npublic interface StateProcessor {\n    \/**\n     * \u6267\u884c\u72b6\u6001\u8fc1\u79fb\u7684\u5165\u53e3\n     *\/\n    void action(StateContext context) throws Exception;\n}\n\/**\n * \u72b6\u6001A\u5bf9\u5e94\u7684\u72b6\u6001\u5904\u7406\u5668\n *\/\npublic class StateAProcessor interface StateProcessor {\n    \/**\n     * \u6267\u884c\u72b6\u6001\u8fc1\u79fb\u7684\u5165\u53e3\n     *\/\n    @Override\n    public void action(StateContext context) throws Exception {\n    }\n}\n<\/code><\/pre>\n\n\n\n
\u5355\u4e00\u72b6\u6001\u6216\u7c7b\u578b\u53ef\u4ee5\u901a\u8fc7\u4e0a\u9762\u7684\u65b9\u6cd5\u89e3\u51b3\uff0c\u90a3\u4e48\"\u591a\u72b6\u6001+\u591a\u7c7b\u578b+\u591a\u573a\u666f+\u591a\u7ef4\u5ea6\"\u8fd9\u79cd\u7ec4\u5408\u4e1a\u52a1\u5462\uff0c\u5f53\u7136\u4e5f\u53ef\u4ee5\u91c7\u7528\u8fd9\u79cd\u6a21\u5f0f\u6216\u601d\u8def\u6765\u89e3\u51b3\u3002\u9996\u5148\u5728\u5f00\u53d1\u9636\u6bb5\u901a\u8fc7\u4e00\u4e2a\u6ce8\u89e3@OrderPorcessor\u5c06\u4e0d\u540c\u7684\u7ef4\u5ea6\u4e88\u4ee5\u7ec4\u5408\u3001\u5f00\u53d1\u51fa\u591a\u4e2a\u5bf9\u5e94\u7684\u5177\u4f53\u5b9e\u73b0\u7c7b\uff0c\u5728\u7cfb\u7edf\u8fd0\u884c\u9636\u6bb5\uff0c\u901a\u8fc7\u5224\u65ad\u4e0a\u4e0b\u6587\u6765\u52a8\u6001\u9009\u62e9\u5177\u4f53\u4f7f\u7528\u54ea\u4e00\u4e2a\u5b9e\u73b0\u7c7b\u6267\u884c\u3002@OrderPorcessor\u4e2d\u5206\u522b\u5b9a\u4e49state\u4ee3\u8868\u5f53\u524d\u5904\u7406\u5668\u8981\u5904\u7406\u7684\u72b6\u6001\uff0cbizCode\u548csceneId\u5206\u522b\u4ee3\u8868\u4e1a\u52a1\u7c7b\u578b\u548c\u573a\u666f\uff0c\u8fd9\u4e24\u4e2a\u5b57\u6bb5\u7559\u7ed9\u4e1a\u52a1\u8fdb\u884c\u6269\u5c55\uff0c\u6bd4\u5982\u53ef\u4ee5\u7528bizCode\u4ee3\u8868\u4ea7\u54c1\u6216\u8ba2\u5355\u7c7b\u578b\u3001sceneId\u4ee3\u8868\u4e1a\u52a1\u5f62\u6001\u6216\u6765\u6e90\u573a\u666f\u7b49\u7b49\uff0c\u5982\u679c\u8981\u6269\u5c55\u591a\u4e2a\u7ef4\u5ea6\u7684\u7ec4\u5408\u3001\u4e5f\u53ef\u4ee5\u7528\u591a\u4e2a\u7ef4\u5ea6\u62fc\u63a5\u540e\u7684\u5b57\u7b26\u4e32\u8d4b\u503c\u5230bizCode\u548csceneId\u4e0a\u3002<\/p>\n\n\n\n
\u53d7\u9650\u4e8eJava\u679a\u4e3e\u4e0d\u80fd\u7ee7\u627f\u7684\u89c4\u8303\uff0c\u5982\u679c\u8981\u5f00\u53d1\u901a\u7528\u7684\u529f\u80fd\u3001\u6ce8\u89e3\u4e2d\u5c31\u4e0d\u80fd\u4f7f\u7528\u679a\u4e3e\u3001\u6240\u4ee5\u6b64\u5904\u53ea\u597d\u4f7f\u7528String\u3002<\/p>\n\n\n\n
\"image.png\"\/<\/div><\/a><\/figure>\n\n\n\n
\/**\n * \u72b6\u6001\u673a\u5f15\u64ce\u7684\u5904\u7406\u5668\u6ce8\u89e3\u6807\u8bc6\n *\/\n@Target({ElementType.TYPE})\n@Retention(RetentionPolicy.RUNTIME)\n@Documented\n@Inherited\n@Component\npublic @interface OrderProcessor {\n    \/**\n     * \u6307\u5b9a\u72b6\u6001\uff0cstate\u4e0d\u80fd\u540c\u65f6\u5b58\u5728\n     *\/\n    String[] state() default {};\n    \/**\n     * \u4e1a\u52a1\n     *\/\n    String[] bizCode() default {};\n    \/**\n     * \u573a\u666f\n     *\/\n    String[] sceneId() default {};\n}\n\/**\n * \u521b\u5efa\u8ba2\u5355\u72b6\u6001\u5bf9\u5e94\u7684\u72b6\u6001\u5904\u7406\u5668\n *\/\n@OrderProcessor(state = "INIT", bizCode = {"CHEAP","POPULAR"}, sceneId = "H5")\npublic class StateCreateProcessor interface StateProcessor {\n}\n<\/code><\/pre>\n\n\n\n
\u518d\u60f3\u4e00\u4e0b\uff0c\u56e0\u4e3a\u6d89\u53ca\u5230\u72b6\u6001\u6d41\u8f6c\uff0c\u4e0d\u53ef\u80fd\u4f1a\u662f\u4e00\u4e2a\u72b6\u6001A\u53ea\u80fd\u6d41\u8f6c\u5230\u72b6\u6001B\u3001\u72b6\u6001A\u53ef\u80fd\u5728\u4e0d\u540c\u7684\u573a\u666f\u4e0b\u6d41\u8f6c\u5230\u72b6\u6001B\u3001\u72b6\u6001C\u3001\u72b6\u6001D\uff1b\u8fd8\u6709\u867d\u7136\u90fd\u662f\u7531\u72b6\u6001A\u6d41\u8f6c\u5230\u72b6\u6001B\u3001\u4f46\u662f\u4e0d\u540c\u7684\u573a\u666f\u5904\u7406\u6d41\u7a0b\u4e5f\u53ef\u80fd\u4e0d\u4e00\u6837\uff0c\u6bd4\u5982\u90fd\u662f\u5c06\u8ba2\u5355\u4ece\u4ece\u5f85\u652f\u4ed8\u72b6\u6001\u8fdb\u884c\u652f\u4ed8\u3001\u7528\u6237\u4e3b\u52a8\u53d1\u8d77\u652f\u4ed8\u548c\u7cfb\u7edf\u514d\u5bc6\u652f\u4ed8\u7684\u6d41\u7a0b\u53ef\u80fd\u5c31\u4e0d\u4e00\u6837\u3002\u9488\u5bf9\u4e0a\u9762\u8fd9\u4e24\u79cd\u60c5\u51b5\u3001\u6211\u4eec\u628a\u8fd9\u91cc\u7684\"\u573a\u666f\"\u7edf\u4e00\u5c01\u88c5\u4e3a\"\u4e8b\u4ef6\uff08event\uff09\"\uff0c\u4ee5\"\u4e8b\u4ef6\u9a71\u52a8\"\u7684\u65b9\u5f0f\u6765\u63a7\u5236\u72b6\u6001\u7684\u6d41\u5411\uff0c\u4e00\u4e2a\u72b6\u6001\u9047\u5230\u4e00\u4e2a\u7279\u5b9a\u7684\u5904\u7406\u4e8b\u4ef6\u6765\u51b3\u5b9a\u8be5\u72b6\u6001\u7684\u4e1a\u52a1\u5904\u7406\u6d41\u7a0b\u548c\u6700\u7ec8\u72b6\u6001\u6d41\u5411\u3002\u6211\u4eec\u53ef\u4ee5\u603b\u7ed3\u4e0b\uff0c\u5176\u5b9e\u72b6\u6001\u673a\u6a21\u5f0f\u7b80\u5355\u8bf4\u5c31\u662f\uff1a\u57fa\u4e8e\u67d0\u4e9b\u7279\u5b9a\u4e1a\u52a1\u548c\u573a\u666f\u4e0b\uff0c\u6839\u636e\u6e90\u72b6\u6001\u548c\u53d1\u751f\u7684\u4e8b\u4ef6\uff0c\u6765\u6267\u884c\u4e0b\u4e00\u6b65\u7684\u6d41\u7a0b\u5904\u7406\u903b\u8f91\uff0c\u5e76\u8bbe\u7f6e\u4e00\u4e2a\u76ee\u6807\u72b6\u6001\u3002<\/p>\n\n\n\n
\u8fd9\u91cc\u6709\u4eba\u53ef\u80fd\u6709\u4e00\u4e9b\u7591\u95ee\uff0c\u8fd9\u4e2a\"\u4e8b\u4ef6\"\u548c\u4e0a\u9762\u8bf4\u7684\"\u591a\u573a\u666f\"\u3001\"\u591a\u7ef4\u5ea6\"\u6709\u4ec0\u4e48\u4e0d\u4e00\u6837\u3002\u89e3\u91ca\u4e00\u4e0b\uff0c\u6211\u4eec\u8fd9\u91cc\u8bf4\u7684\u662f\"\u4e8b\u4ef6\"\u662f\u4e00\u4e2a\u5177\u4f53\u7684\u4e1a\u52a1\u8981\u6267\u884c\u7684\u52a8\u4f5c\uff0c\u6bd4\u5982\u7528\u6237\u4e0b\u5355\u662f\u4e00\u4e2a\u4e1a\u52a1\u4e8b\u4ef6\u3001\u7528\u6237\u53d6\u6d88\u8ba2\u5355\u662f\u4e00\u4e2a\u4e1a\u52a1\u4e8b\u4ef6\u3001\u7528\u6237\u652f\u4ed8\u8ba2\u5355\u4e5f\u662f\u4e00\u4e2a\u4e1a\u52a1\u4e8b\u4ef6\u3002\u800c\"\u591a\u573a\u666f\"\u3001\"\u591a\u7ef4\u5ea6\"\u5219\u662f\u53ef\u4ea4\u7531\u4e1a\u52a1\u81ea\u884c\u8fdb\u884c\u6269\u5c55\u7684\u7ef4\u5ea6\uff0c\u6bd4\u5982\u81ea\u6709\u6807\u51c6\u6a21\u5f0f\u6765\u6e90\u7684\u8ba2\u5355\u3001\u901a\u8fc7\u5f00\u653e\u5e73\u53f0API\u6765\u7684\u8ba2\u5355\u3001\u901a\u8fc7\u7b2c\u4e09\u65b9\u6807\u51c6\u6765\u6e90\u7684\u8ba2\u5355\uff0c\u67d0\u67d0\u5c0f\u7a0b\u5e8f\u3001\u67d0\u67d0APP\u6765\u6e90\u53ef\u4ee5\u5b9a\u4e49\u4e3a\u4e0d\u540c\u573a\u666f\uff0c\u800c\u63a5\u9001\u673a\u3001\u4f01\u4e1a\u7528\u8f66\u3001\u62fc\u8f66\u7b49\u53ef\u4ee5\u5b9a\u4e49\u4e3a\u7ef4\u5ea6\u3002<\/p>\n\n\n\n
\"image.png\"\/<\/div><\/a><\/figure>\n\n\n\n
public @interface OrderProcessor {\n    \/**\n     * \u6307\u5b9a\u72b6\u6001\n     *\/\n    String[] state() default {};\n    \/**\n     * \u8ba2\u5355\u64cd\u4f5c\u4e8b\u4ef6\n     *\/\n    String event();\n    ......\n}\n\/**\n * \u8ba2\u5355\u72b6\u6001\u8fc1\u79fb\u4e8b\u4ef6\n *\/\npublic interface OrderStateEvent {\n    \/**\n     * \u8ba2\u5355\u72b6\u6001\u4e8b\u4ef6\n     *\/\n    String getEventType();\n    \/**\n     * \u8ba2\u5355ID\n     *\/\n    String getOrderId();\n    \/**\n     * \u5982\u679corderState\u4e0d\u4e3a\u7a7a\uff0c\u5219\u4ee3\u8868\u53ea\u6709\u8ba2\u5355\u662f\u5f53\u524d\u72b6\u6001\u624d\u8fdb\u884c\u8fc1\u79fb\n     *\/\n    default String orderState() {\n        return null;\n    }\n    \/**\n     * \u662f\u5426\u8981\u65b0\u521b\u5efa\u8ba2\u5355\n     *\/\n    boolean newCreate();\n}\n<\/code><\/pre>\n\n\n\n
\u72b6\u6001\u8fc1\u79fb\u6d41\u7a0b\u7684\u5c01\u88c5<\/strong><\/p>\n\n\n\n
\u5728\u6ee1\u8db3\u4e86\u4e0a\u9762\u8bf4\u7684\u591a\u7ef4\u5ea6\u7ec4\u5408\u7684\u4e1a\u52a1\u573a\u666f\u3001\u5f00\u53d1\u591a\u4e2a\u5b9e\u73b0\u7c7b\u6765\u6267\u884c\u7684\u60c5\u51b5\uff0c\u6211\u4eec\u601d\u8003\u6267\u884c\u8fd9\u4e9b\u5b9e\u73b0\u7c7b\u5728\u6d41\u7a0b\u4e0a\u662f\u5426\u6709\u518d\u6b21\u62bd\u8c61\u548c\u5c01\u88c5\u7684\u5730\u65b9\u3001\u4ee5\u51cf\u5c11\u7814\u53d1\u5de5\u4f5c\u91cf\u548c\u5c3d\u91cf\u7684\u5b9e\u73b0\u901a\u7528\u6d41\u7a0b\u3002\u6211\u4eec\u7ecf\u8fc7\u89c2\u5bdf\u548c\u62bd\u8c61\uff0c\u53d1\u73b0\u6bcf\u4e00\u4e2a\u8ba2\u5355\u72b6\u6001\u6d41\u8f6c\u7684\u6d41\u7a0b\u4e2d\uff0c\u90fd\u4f1a\u6709\u4e09\u4e2a\u6d41\u7a0b\uff1a\u6821\u9a8c\u3001\u4e1a\u52a1\u903b\u8f91\u6267\u884c\u3001\u6570\u636e\u66f4\u65b0\u6301\u4e45\u5316\uff1b\u4e8e\u662f\u518d\u6b21\u62bd\u8c61\uff0c\u53ef\u4ee5\u5c06\u4e00\u4e2a\u72b6\u6001\u6d41\u8f6c\u5206\u4e3a\u6570\u636e\u51c6\u5907\uff08prepare\uff09\u2014\u2014>\u6821\u9a8c\uff08check\uff09\u2014\u2014>\u83b7\u53d6\u4e0b\u4e00\u4e2a\u72b6\u6001\uff08getNextState\uff09\u2014\u2014>\u4e1a\u52a1\u903b\u8f91\u6267\u884c\uff08action\uff09\u2014\u2014>\u6570\u636e\u6301\u4e45\u5316\uff08save\uff09\u2014\u2014>\u540e\u7eed\u5904\u7406\uff08after\uff09\u8fd9\u516d\u4e2a\u9636\u6bb5\uff1b\u7136\u540e\u901a\u8fc7\u4e00\u4e2a\u6a21\u677f\u65b9\u6cd5\u5c06\u516d\u4e2a\u9636\u6bb5\u65b9\u6cd5\u4e32\u8054\u5728\u4e00\u8d77\u3001\u5f62\u6210\u4e00\u4e2a\u6709\u987a\u5e8f\u7684\u6267\u884c\u903b\u8f91\u3002\u8fd9\u6837\u4e00\u6765\u6574\u4e2a\u72b6\u6001\u6d41\u7a0b\u7684\u6267\u884c\u903b\u8f91\u5c31\u66f4\u52a0\u6e05\u6670\u548c\u7b80\u5355\u4e86\u3001\u53ef\u7ef4\u62a4\u6027\u4e0a\u4e5f\u5f97\u5230\u7684\u4e00\u5b9a\u7684\u63d0\u5347\u3002<\/p>\n\n\n\n
\"image.png\"\/<\/div><\/a><\/figure>\n\n\n\n
\/**\n * \u72b6\u6001\u8fc1\u79fb\u52a8\u4f5c\u5904\u7406\u6b65\u9aa4\n *\/\npublic interface StateActionStep<T, C> {\n    \/**\n     * \u51c6\u5907\u6570\u636e\n     *\/\n    default void prepare(StateContext<C> context) {\n    }\n    \/**\n     * \u6821\u9a8c\n     *\/\n    ServiceResult<T> check(StateContext<C> context);\n    \/**\n     * \u83b7\u53d6\u5f53\u524d\u72b6\u6001\u5904\u7406\u5668\u5904\u7406\u5b8c\u6bd5\u540e\uff0c\u6240\u5904\u4e8e\u7684\u4e0b\u4e00\u4e2a\u72b6\u6001\n     *\/\n    String getNextState(StateContext<C> context);\n    \/**\n     * \u72b6\u6001\u52a8\u4f5c\u65b9\u6cd5\uff0c\u4e3b\u8981\u72b6\u6001\u8fc1\u79fb\u903b\u8f91\n     *\/\n    ServiceResult<T> action(String nextState, StateContext<C> context) throws Exception;\n    \/**\n     * \u72b6\u6001\u6570\u636e\u6301\u4e45\u5316\n     *\/\n    ServiceResult<T> save(String nextState, StateContext<C> context) throws Exception;\n    \/**\n     * \u72b6\u6001\u8fc1\u79fb\u6210\u529f\uff0c\u6301\u4e45\u5316\u540e\u6267\u884c\u7684\u540e\u7eed\u5904\u7406\n     *\/\n    void after(StateContext<C> context);\n}\n\/**\n * \u72b6\u6001\u673a\u5904\u7406\u5668\u6a21\u677f\u7c7b\n *\/\n@Component\npublic abstract class AbstractStateProcessor<T, C> implements StateProcessor<T, C>, StateActionStep<T, C> {\n    @Override\n    public final ServiceResult<T> action(StateContext<C> context) throws Exception {\n        ServiceResult<T> result = null;\n        try {\n            \/\/ \u6570\u636e\u51c6\u5907\n            this.prepare(context);\n            \/\/ \u4e32\u884c\u6821\u9a8c\u5668\n            result = this.check(context);\n            if (!result.isSuccess()) {\n                return result;\n            }\n            \/\/ getNextState\u4e0d\u80fd\u5728prepare\u524d\uff0c\u56e0\u4e3a\u6709\u7684nextState\u662f\u6839\u636eprepare\u4e2d\u7684\u6570\u636e\u8f6c\u6362\u800c\u6765\n            String nextState = this.getNextState(context);\n            \/\/ \u4e1a\u52a1\u903b\u8f91\n            result = this.action(nextState, context);\n            if (!result.isSuccess()) {\n                return result;\n            }\n            \/\/ \u6301\u4e45\u5316\n            result = this.save(nextState, context);\n            if (!result.isSuccess()) {\n                return result;\n            }\n            \/\/ after\n            this.after(context);\n            return result;\n        } catch (Exception e) {\n            throw e;\n        }\n    }\n\/**\n * \u72b6\u6001A\u5bf9\u5e94\u7684\u72b6\u6001\u5904\u7406\u5668\n *\/\n@OrderProcessor(state = "INIT", bizCode = {"CHEAP","POPULAR"}, sceneId = "H5")\npublic class StateCreateProcessor extends AbstractStateProcessor<String, CreateOrderContext> {\n    ......\n}\n<\/code><\/pre>\n\n\n\n
\uff081\uff09\u6821\u9a8c\u5668<\/p>\n\n\n\n
\u4e0a\u9762\u63d0\u5230\u4e86\u6821\u9a8c\uff08check\uff09\uff0c\u6211\u4eec\u90fd\u77e5\u9053\u4efb\u4f55\u4e00\u4e2a\u72b6\u6001\u7684\u6d41\u8f6c\u751a\u81f3\u63a5\u53e3\u7684\u8c03\u7528\u5176\u5b9e\u90fd\u5c11\u4e0d\u4e86\u4e00\u4e9b\u6821\u9a8c\u89c4\u5219\uff0c\u5c24\u5176\u662f\u5bf9\u4e8e\u590d\u6742\u7684\u4e1a\u52a1\u3001\u5176\u6821\u9a8c\u89c4\u5219\u548c\u6821\u9a8c\u903b\u8f91\u4e5f\u4f1a\u66f4\u52a0\u590d\u6742\u3002\u90a3\u4e48\u5bf9\u4e8e\u8fd9\u4e9b\u6821\u9a8c\u89c4\u5219\u600e\u4e48\u89e3\u8026\u5462\uff0c\u65e2\u8981\u5c06\u6821\u9a8c\u903b\u8f91\u4ece\u590d\u6742\u7684\u4e1a\u52a1\u6d41\u7a0b\u4e2d\u89e3\u8026\u51fa\u6765\u3001\u540c\u65f6\u53c8\u9700\u8981\u628a\u590d\u6742\u7684\u6821\u9a8c\u89c4\u5219\u7b80\u5355\u5316\uff0c\u4f7f\u6574\u4e2a\u6821\u9a8c\u903b\u8f91\u66f4\u5177\u6709\u53ef\u6269\u5c55\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u5176\u5b9e\u505a\u6cd5\u4e5f\u6bd4\u8f83\u7b80\u5355\u3001\u53c2\u8003\u4e0a\u9762\u7684\u903b\u8f91\uff0c\u53ea\u9700\u8981\u62bd\u8c61\u4e00\u4e2a\u6821\u9a8c\u5668\u63a5\u53e3checker\u3001\u628a\u590d\u6742\u7684\u6821\u9a8c\u903b\u8f91\u62c6\u5f00\u3001\u5f62\u6210\u591a\u4e2a\u5355\u4e00\u903b\u8f91\u7684\u6821\u9a8c\u5668\u5b9e\u73b0\u7c7b\uff0c\u72b6\u6001\u5904\u7406\u5668\u5728\u8c03\u7528check\u65f6\u53ea\u9700\u8981\u8c03\u7528\u4e00\u4e2a\u63a5\u53e3\u3001\u7531\u6821\u9a8c\u5668\u6267\u884c\u591a\u4e2achecker\u7684\u96c6\u5408\u5c31\u53ef\u4ee5\u4e86\u3002\u5c06\u6821\u9a8c\u5668checker\u8fdb\u884c\u5c01\u88c5\u4e4b\u540e\uff0c\u53d1\u73b0\u8981\u52a0\u5165\u4e00\u4e2a\u65b0\u7684\u6821\u9a8c\u903b\u8f91\u5c31\u5341\u5206\u7b80\u5355\u4e86\uff0c\u53ea\u9700\u8981\u5199\u4e00\u4e2a\u65b0\u7684checker\u5b9e\u73b0\u7c7b\u52a0\u5165\u6821\u9a8c\u5668\u5c31\u884c\u3001\u5bf9\u5176\u4ed6\u4ee3\u7801\u57fa\u672c\u6ca1\u6709\u6539\u52a8\u3002<\/p>\n\n\n\n
\/**\n * \u72b6\u6001\u673a\u6821\u9a8c\u5668\n *\/\npublic interface Checker<T, C> {\n    ServiceResult<T> check(StateContext<C> context);\n    \/**\n     * \u591a\u4e2achecker\u65f6\u7684\u6267\u884c\u987a\u5e8f\n     *\/\n    default int order() {\n        return 0;\n    }\n}\n<\/code><\/pre>\n\n\n\n
\u903b\u8f91\u7b80\u5355\u4e86\u3001\u6269\u5c55\u6027\u548c\u7ef4\u62a4\u6027\u89e3\u51b3\u4e86\u3001\u6027\u80fd\u95ee\u9898\u5c31\u4f1a\u663e\u73b0\u51fa\u6765\u3002\u591a\u4e2a\u6821\u9a8c\u5668checker\u4e32\u884c\u6267\u884c\u6027\u80fd\u80af\u5b9a\u6027\u80fd\u6bd4\u8f83\u5dee\uff0c\u6b64\u65f6\u5f88\u7b80\u5355\u7684\u53ef\u4ee5\u60f3\u5230\u4f7f\u7528\u5e76\u884c\u6267\u884c\uff0c\u662f\u7684\u3001\u6b64\u5904\u4f7f\u7528\u591a\u7ebf\u7a0b\u5e76\u884c\u6267\u884c\u591a\u4e2a\u6821\u9a8c\u5668checker\u80fd\u663e\u8457\u63d0\u9ad8\u6267\u884c\u6548\u7387\u3002\u4f46\u662f\u4e5f\u5e94\u8be5\u610f\u8bc6\u5230\uff0c\u6709\u4e9b\u6821\u9a8c\u5668\u903b\u8f91\u53ef\u80fd\u662f\u6709\u524d\u540e\u4f9d\u8d56\u7684\uff08\u5176\u5b9e\u4e0d\u5e94\u8be5\u51fa\u73b0\uff09\uff0c\u8fd8\u6709\u5199\u4e1a\u52a1\u6d41\u7a0b\u4e2d\u8981\u6c42\u67d0\u4e9b\u6821\u9a8c\u5668\u7684\u6267\u884c\u5fc5\u987b\u6709\u524d\u540e\u987a\u5e8f\uff0c\u8fd8\u6709\u4e9b\u6d41\u7a0b\u4e0d\u8981\u6c42\u6821\u9a8c\u5668\u7684\u6267\u884c\u987a\u5e8f\u4f46\u662f\u8981\u6c42\u9519\u8bef\u65f6\u7684\u8fd4\u56de\u987a\u5e8f\u3001\u90a3\u4e48\u600e\u4e48\u5728\u5e76\u884c\u7684\u524d\u63d0\u4e0b\u4fdd\u8bc1\u987a\u5e8f\u5462\u3001\u6b64\u5904\u5c31\u53ef\u4ee5\u7528order+Future\u5b9e\u73b0\u4e86\u3002\u7ecf\u8fc7\u4e00\u7cfb\u5217\u7684\u601d\u8003\u548c\u603b\u7ed3\uff0c\u6211\u4eec\u628a\u6821\u9a8c\u5668\u5206\u4e3a\u53c2\u6570\u6821\u9a8c\uff08paramChecker\uff09\u3001\u540c\u6b65\u6821\u9a8c\uff08syncChecker\uff09\u3001\u5f02\u6b65\u6821\u9a8c\uff08asyncChecker\uff09\u4e09\u79cd\u7c7b\u578b\uff0c\u5176\u4e2d\u53c2\u6570\u6821\u9a8cparamChecker\u662f\u9700\u8981\u5728\u72b6\u6001\u5904\u7406\u5668\u6700\u5f00\u59cb\u5904\u6267\u884c\u7684\uff0c\u4e3a\u4ec0\u4e48\u8fd9\u4e48\u505a\u3001\u56e0\u4e3a\u53c2\u6570\u90fd\u4e0d\u5408\u6cd5\u4e86\u80af\u5b9a\u6ca1\u6709\u7ee7\u7eed\u5411\u4e0b\u6267\u884c\u7684\u5fc5\u8981\u4e86\u3002<\/p>\n\n\n\n
\"image.png\"\/<\/div><\/a><\/figure>\n\n\n\n
\/**\n * \u72b6\u6001\u673a\u6821\u9a8c\u5668\n *\/\npublic interface Checkable {\n    \/**\n     * \u53c2\u6570\u6821\u9a8c\n     *\/\n    default List<Checker> getParamChecker() {\n        return Collections.EMPTY_LIST;\n    }\n    \/**\n     * \u9700\u540c\u6b65\u6267\u884c\u7684\u72b6\u6001\u68c0\u67e5\u5668\n     *\/\n    default List<Checker> getSyncChecker() {\n        return Collections.EMPTY_LIST;\n    }\n    \/**\n     * \u53ef\u5f02\u6b65\u6267\u884c\u7684\u6821\u9a8c\u5668\n     *\/\n    default List<Checker> getAsyncChecker() {\n        return Collections.EMPTY_LIST;\n    }\n}\n\/**\n * \u6821\u9a8c\u5668\u7684\u6267\u884c\u5668\n *\/\npublic class CheckerExecutor {\n    \/**\n     * \u6267\u884c\u5e76\u884c\u6821\u9a8c\u5668\uff0c\n     * \u6309\u7167\u4efb\u52a1\u6295\u9012\u7684\u987a\u5e8f\u5224\u65ad\u8fd4\u56de\u3002\n     *\/\n    public ServiceResult<T, C> parallelCheck(List<Checker> checkers, StateContext<C> context) {\n        if (!CollectionUtils.isEmpty(checkers)) {\n            if (checkers.size() == 1) {\n                return checkers.get(0).check(context);\n            }\n            List<Future<ServiceResult>> resultList = Collections.synchronizedList(new ArrayList<>(checkers.size()));\n            checkers.sort(Comparator.comparingInt(Checker::order));\n            for (Checker c : checkers) {\n                Future<ServiceResult> future = executor.submit(() -> c.check(context));\n                resultList.add(future);\n            }\n            for (Future<ServiceResult> future : resultList) {\n                try {\n                    ServiceResult sr = future.get();\n                    if (!sr.isSuccess()) {\n                        return sr;\n                    }\n                } catch (Exception e) {\n                    log.error("parallelCheck executor.submit error.", e);\n                    throw new RuntimeException(e);\n                }\n            }\n        }\n        return new ServiceResult<>();\n    }\n}\n<\/code><\/pre>\n\n\n\n
checkable\u5728\u6a21\u677f\u65b9\u6cd5\u4e2d\u7684\u4f7f\u7528\u3002<\/p>\n\n\n\n
public interface StateActionStep<T, C> {\n    Checkable getCheckable(StateContext<C> context);\n    ....\n}\npublic abstract class AbstractStateProcessor<T, C> implements StateProcessor<T>, StateActionStep<T, C> {\n    @Resource\n    private CheckerExecutor checkerExecutor;\n    @Override\n    public final ServiceResult<T> action(StateContext<C> context) throws Exception {\n        ServiceResult<T> result = null;\n        Checkable checkable = this.getCheckable(context);\n        try {\n            \/\/ \u53c2\u6570\u6821\u9a8c\u5668\n            result = checkerExecutor.serialCheck(checkable.getParamChecker(), context);\n            if (!result.isSuccess()) {\n                return result;\n            }\n            \/\/ \u6570\u636e\u51c6\u5907\n            this.prepare(context);\n            \/\/ \u4e32\u884c\u6821\u9a8c\u5668\n            result = checkerExecutor.serialCheck(checkable.getSyncChecker(), context);\n            if (!result.isSuccess()) {\n                return result;\n            }\n            \/\/ \u5e76\u884c\u6821\u9a8c\u5668\n            result = checkerExecutor.parallelCheck(checkable.getAsyncChecker(), context);\n            if (!result.isSuccess()) {\n                return result;\n            }\n        ......\n}\n<\/code><\/pre>\n\n\n\n
checkable\u5728\u5177\u4f53\u72b6\u6001\u5904\u7406\u5668\u4e2d\u7684\u4ee3\u7801\u5e94\u7528\u4e3e\u4f8b\u3002<\/p>\n\n\n\n
@OrderProcessor(state = "INIT", bizCode = {"CHEAP","POPULAR"}, sceneId = "H5")\npublic class OrderCreatedProcessor extends AbstractStateProcessor<String, CreateOrderContext> {\n    @Resource\n    private CreateParamChecker createParamChecker;\n    @Resource\n    private UserChecker userChecker;\n    @Resource\n    private UnfinshChecker unfinshChecker;\n    @Override\n    public Checkable getCheckable(StateContext<CreateOrderContext> context) {\n        return new Checkable() {\n            @Override\n            public List<Checker> getParamChecker() {\n                return Arrays.asList(createParamChecker);\n            }\n            @Override\n            public List<Checker> getSyncChecker() {\n                return Collections.EMPTY_LIST;\n            }\n            @Override\n            public List<Checker> getAsyncChecker() {\n                return Arrays.asList(userChecker, unfinshChecker);\n            }\n        };\n    }\n......\n<\/code><\/pre>\n\n\n\n
checker\u7684\u5b9a\u4f4d\u662f\u6821\u9a8c\u5668\uff0c\u8d1f\u8d23\u6821\u9a8c\u53c2\u6570\u6216\u4e1a\u52a1\u7684\u5408\u6cd5\u6027\uff0c\u4f46\u5b9e\u9645\u7f16\u7801\u8fc7\u7a0b\u4e2d\u3001checker\u4e2d\u53ef\u80fd\u4f1a\u6709\u4e00\u4e9b\u4e34\u65f6\u72b6\u6001\u7c7b\u64cd\u4f5c\uff0c\u6bd4\u5982\u5728\u6821\u9a8c\u4e4b\u524d\u8fdb\u884c\u8ba1\u6570\u6216\u8005\u52a0\u9501\u64cd\u4f5c\u3001\u5728\u6821\u9a8c\u5b8c\u6210\u540e\u6839\u636e\u7ed3\u679c\u8fdb\u884c\u91ca\u653e\uff0c\u8fd9\u91cc\u5c31\u9700\u8981\u652f\u6301\u7edf\u4e00\u7684\u91ca\u653e\u529f\u80fd\u3002<\/p>\n\n\n\n
public interface Checker<T, C> {\n    ......\n    \/**\n     * \u662f\u5426\u9700\u6c42release\n     *\/\n    default boolean needRelease() {\n        return false;\n    }\n    \/**\n     * \u4e1a\u52a1\u6267\u884c\u5b8c\u6210\u540e\u7684\u91ca\u653e\u65b9\u6cd5,\n     * \u6bd4\u5982\u6709\u4e9b\u4e1a\u52a1\u4f1a\u5728checker\u4e2d\u52a0\u4e00\u4e9b\u72b6\u6001\u64cd\u4f5c\uff0c\u7b49\u4e1a\u52a1\u6267\u884c\u5b8c\u6210\u540e\u6839\u636e\u7ed3\u679c\u9009\u62e9\u5904\u7406\u8fd9\u4e9b\u72b6\u6001\u64cd\u4f5c,\n     * \u6700\u5178\u578b\u7684\u5c31\u662fchecker\u4e2d\u52a0\u4e00\u628a\u9501\uff0crelease\u6839\u636e\u7ed3\u679c\u91ca\u653e\u9501.\n     *\/\n    default void release(StateContext<C> context, ServiceResult<T> result) {\n    }\n}\npublic class CheckerExecutor {\n    \/**\n     * \u6267\u884cchecker\u7684\u91ca\u653e\u64cd\u4f5c\n     *\/\n    public <T, C> void releaseCheck(Checkable checkable, StateContext<C> context, ServiceResult<T> result) {\n        List<Checker> checkers = new ArrayList<>();\n        checkers.addAll(checkable.getParamChecker());\n        checkers.addAll(checkable.getSyncChecker());\n        checkers.addAll(checkable.getAsyncChecker());\n        checkers.removeIf(Checker::needRelease);\n        if (!CollectionUtils.isEmpty(checkers)) {\n            if (checkers.size() == 1) {\n                checkers.get(0).release(context, result);\n                return;\n            }\n            CountDownLatch latch = new CountDownLatch(checkers.size());\n            for (Checker c : checkers) {\n                executor.execute(() -> {\n                    try {\n                        c.release(context, result);\n                    } finally {\n                        latch.countDown();\n                    }\n                });\n            }\n            try {\n                latch.await();\n            } catch (InterruptedException e) {\n                throw new RuntimeException(e);\n            }\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n
2\uff09\u4e0a\u4e0b\u6587<\/p>\n\n\n\n
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public class StateContext<C> {\n    \/**\n     * \u8ba2\u5355\u64cd\u4f5c\u4e8b\u4ef6\n     *\/\n    private OrderStateEvent orderStateEvent;\n    \/**\n     * \u72b6\u6001\u673a\u9700\u8981\u7684\u8ba2\u5355\u57fa\u672c\u4fe1\u606f\n     *\/\n    private FsmOrder fsmOrder;\n    \/**\n     * \u4e1a\u52a1\u53ef\u5b9a\u4e49\u7684\u4e0a\u4e0b\u6587\u6cdb\u578b\u5bf9\u8c61\n     *\/\n    private C context;\n    public StateContext(OrderStateEvent orderStateEvent, FsmOrder fsmOrder) {\n        this.orderStateEvent = orderStateEvent;\n        this.fsmOrder = fsmOrder;\n    }\n    ......\n\/**\n * \u72b6\u6001\u673a\u5f15\u64ce\u6240\u9700\u7684\u8ba2\u5355\u4fe1\u606f\u57fa\u7c7b\u4fe1\u606f\n *\/\npublic interface FsmOrder {\n    \/**\n     * \u8ba2\u5355ID\n     *\/\n    String getOrderId();\n    \/**\n     * \u8ba2\u5355\u72b6\u6001\n     *\/\n    String getOrderState();\n    \/**\n     * \u8ba2\u5355\u7684\u4e1a\u52a1\u5c5e\u6027\n     *\/\n    String bizCode();\n    \/**\n     * \u8ba2\u5355\u7684\u573a\u666f\u5c5e\u6027\n     *\/\n    String sceneId();\n}\n<\/code><\/pre>\n\n\n\n
\uff083\uff09\u8fc1\u79fb\u5230\u7684\u72b6\u6001\u5224\u5b9a<\/p>\n\n\n\n
\u4e3a\u4ec0\u4e48\u8981\u628a\u4e0b\u4e00\u4e2a\u72b6\u6001\uff08getNextState\uff09\u62bd\u8c61\u4e3a\u5355\u72ec\u4e00\u4e2a\u6b65\u9aa4\u3001\u800c\u4e0d\u662f\u4ea4\u7531\u4e1a\u52a1\u81ea\u5df1\u8fdb\u884c\u8bbe\u7f6e\u5462\uff1f\u662f\u56e0\u4e3a\u8981\u8fc1\u79fb\u5230\u7684\u4e0b\u4e00\u4e2a\u72b6\u6001\u4e0d\u4e00\u5b9a\u662f\u56fa\u5b9a\u7684\uff0c\u5c31\u662f\u8bf4\u6839\u636e\u5f53\u524d\u72b6\u6001\u548c\u53d1\u751f\u7684\u4e8b\u4ef6\u3001\u518d\u9047\u5230\u66f4\u52a0\u7ec6\u8282\u7684\u903b\u8f91\u65f6\u4e5f\u53ef\u80fd\u4f1a\u6d41\u8f6c\u5230\u4e0d\u540c\u7684\u72b6\u6001\u3002\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5f53\u524d\u72b6\u6001\u662f\u7528\u6237\u5df2\u4e0b\u5355\u5b8c\u6210\u3001\u8981\u53d1\u751f\u7684\u4e8b\u4ef6\u662f\u7528\u6237\u53d6\u6d88\u8ba2\u5355\uff0c\u6b64\u65f6\u6839\u636e\u4e0d\u540c\u7684\u903b\u8f91\uff0c\u8ba2\u5355\u6709\u53ef\u80fd\u6d41\u8f6c\u5230\u53d6\u6d88\u72b6\u6001\u3001\u4e5f\u6709\u53ef\u80fd\u6d41\u8f6c\u5230\u53d6\u6d88\u5f85\u5ba1\u6838\u72b6\u6001\u3001\u751a\u81f3\u6709\u53ef\u80fd\u6d41\u8f6c\u5230\u53d6\u6d88\u5f85\u652f\u4ed8\u8d39\u7528\u72b6\u6001\u3002\u5f53\u7136\u8fd9\u91cc\u8981\u53d6\u51b3\u4e8e\u4e1a\u52a1\u7cfb\u7edf\u5bf9\u72b6\u6001\u548c\u4e8b\u4ef6\u5b9a\u4e49\u7684\u7c97\u7ec6\u548c\u72b6\u6001\u673a\u7684\u590d\u6742\u7a0b\u5ea6\uff0c\u505a\u4e3a\u72b6\u6001\u673a\u5f15\u64ce\u3001\u8fd9\u91cc\u628a\u4e0b\u4e00\u4e2a\u72b6\u6001\u7684\u5224\u5b9a\u4ea4\u7531\u4e1a\u52a1\u6839\u636e\u4e0a\u4e0b\u6587\u5bf9\u8c61\u81ea\u5df1\u6765\u5224\u65ad\u3002<\/p>\n\n\n\n
getNextState()\u4f7f\u7528\u53ca\u72b6\u6001\u8fc1\u79fb\u6301\u4e45\u5316\u4e3e\u4f8b\uff1a<\/p>\n\n\n\n
@OrderProcessor(state = OrderStateEnum.INIT, event = OrderEventEnum.CREATE, bizCode = "BUSINESS")\npublic class OrderCreatedProcessor extends AbstractStateProcessor<String, CreateOrderContext> {\n\n    ........\n\n    @Override\n    public String getNextState(StateContext<CreateOrderContext> context) {\n    \/\/ if (context.getOrderStateEvent().getEventType().equals("xxx")) {\n    \/\/     return OrderStateEnum.INIT;\n    \/\/  }\n        return OrderStateEnum.NEW;\n    }\n    @Override\n    public ServiceResult<String> save(String nextState, StateContext<CreateOrderContext> context) throws Exception {\n        OrderInfo orderInfo = context.getContext().getOrderInfo();\n        \/\/ \u66f4\u65b0\u72b6\u6001\n        orderInfo.setOrderState(nextState);\n        \/\/ \u6301\u4e45\u5316\n\/\/        this.updateOrderInfo(orderInfo);\n        log.info("save BUSINESS order success, userId:{}, orderId:{}", orderInfo.getUserId(), orderInfo.getOrderId());\n        return new ServiceResult<>(orderInfo.getOrderId(), "business\u4e0b\u5355\u6210\u529f");\n    }\n}\n<\/code><\/pre>\n\n\n\n
\u72b6\u6001\u6d88\u606f<\/strong><\/p>\n\n\n\n
\u4e00\u822c\u6765\u8bf4\uff0c\u6240\u6709\u7684\u72b6\u6001\u8fc1\u79fb\u90fd\u5e94\u8be5\u53d1\u51fa\u5bf9\u5e94\u7684\u6d88\u606f\uff0c\u7531\u4e0b\u6e38\u6d88\u8d39\u65b9\u8ba2\u9605\u8fdb\u884c\u76f8\u5e94\u7684\u4e1a\u52a1\u5904\u7406\u3002<\/p>\n\n\n\n
\uff081\uff09\u72b6\u6001\u6d88\u606f\u5185\u5bb9<\/p>\n\n\n\n
\u5bf9\u4e8e\u72b6\u6001\u8fc1\u79fb\u6d88\u606f\u7684\u53d1\u9001\u5185\u5bb9\u901a\u5e38\u6709\u4e24\u79cd\u5f62\u5f0f\uff0c\u4e00\u4e2a\u662f\u53ea\u53d1\u72b6\u6001\u53d1\u751f\u8fc1\u79fb\u8fd9\u4e2a\u901a\u77e5\u3001\u4e3e\u4f8b\u5b50\u5c31\u662f\u53ea\u53d1\u9001\"\u8ba2\u5355ID\u3001\u53d8\u66f4\u524d\u72b6\u6001\u3001\u53d8\u66f4\u540e\u72b6\u6001\"\u7b49\u51e0\u4e2a\u5173\u952e\u5b57\u6bb5\uff0c\u5177\u4f53\u4e0b\u6e38\u4e1a\u52a1\u9700\u8981\u54ea\u4e9b\u5177\u4f53\u5185\u5bb9\u5728\u8c03\u7528\u76f8\u5e94\u7684\u63a5\u53e3\u8fdb\u884c\u53cd\u67e5\uff1b\u8fd8\u6709\u4e00\u79cd\u662f\u53d1\u9001\u6240\u6709\u5b57\u6bb5\u51fa\u53bb\u3001\u7c7b\u4f3c\u4e8e\u53d1\u4e00\u4e2a\u72b6\u6001\u53d8\u66f4\u540e\u7684\u8ba2\u5355\u5185\u5bb9\u5feb\u7167\uff0c\u4e0b\u6e38\u63a5\u5230\u6d88\u606f\u540e\u51e0\u4e4e\u4e0d\u9700\u8981\u5728\u8c03\u7528\u63a5\u53e3\u8fdb\u884c\u53cd\u67e5\u3002<\/p>\n\n\n\n
\uff082\uff09\u72b6\u6001\u6d88\u606f\u7684\u65f6\u5e8f<\/p>\n\n\n\n
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a\uff09\u4f7f\u7528rocketmq\u7b49\u652f\u6301\u7684\u4e24\u9636\u6bb5\u5f0f\u6d88\u606f\u63d0\u4ea4\u65b9\u5f0f\uff1a<\/p>\n\n\n\n
  1. \u5148\u5411\u6d88\u606f\u670d\u52a1\u5668\u53d1\u9001\u4e00\u6761\u9884\u5904\u7406\u6d88\u606f<\/li>
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    \"image.png\"\/<\/div><\/a><\/figure>\n\n\n\n
    b\uff09\u4f7f\u7528\u6570\u636e\u5e93\u4e8b\u52a1\u65b9\u6848\u4fdd\u8bc1\uff1a<\/p>\n\n\n\n
    1. \u521b\u5efa\u4e00\u4e2a\u6d88\u606f\u53d1\u9001\u8868\uff0c\u5c06\u8981\u53d1\u9001\u7684\u6d88\u606f\u63d2\u5165\u5230\u8be5\u8868\u4e2d\uff0c\u540c\u672c\u5730\u4e1a\u52a1\u5728\u4e00\u4e2a\u6570\u636e\u5e93\u4e8b\u52a1\u4e2d\u8fdb\u884c\u63d0\u4ea4<\/li>
    2. \u4e4b\u540e\u5728\u7531\u4e00\u4e2a\u5b9a\u65f6\u4efb\u52a1\u6765\u8f6e\u8be2\u53d1\u9001\u3001\u76f4\u5230\u53d1\u9001\u6210\u529f\u540e\u5728\u5220\u9664\u5f53\u524d\u8868\u8bb0\u5f55<\/li><\/ol>\n\n\n\n
      c\uff09\u8fd8\u662f\u4f7f\u7528\u6570\u636e\u5e93\u4e8b\u52a1\u65b9\u6848\u4fdd\u8bc1\uff1a<\/p>\n\n\n\n
      1. \u521b\u5efa\u4e00\u4e2a\u6d88\u606f\u53d1\u9001\u8868\uff0c\u5c06\u8981\u53d1\u9001\u7684\u6d88\u606f\u63d2\u5165\u5230\u8be5\u8868\u4e2d\uff0c\u540c\u672c\u5730\u4e1a\u52a1\u5728\u4e00\u4e2a\u6570\u636e\u5e93\u4e8b\u52a1\u4e2d\u8fdb\u884c\u63d0\u4ea4<\/li>
      2. \u5411\u6d88\u606f\u670d\u52a1\u5668\u53d1\u9001\u6d88\u606f<\/li>
      3. \u53d1\u9001\u6210\u529f\u5219\u5220\u9664\u6389\u5f53\u524d\u8868\u8bb0\u5f55<\/li>
      4. \u5bf9\u4e8e\u6ca1\u6709\u53d1\u9001\u6210\u529f\u7684\u6d88\u606f\uff08\u4e5f\u5c31\u662f\u8868\u91cc\u9762\u6ca1\u6709\u88ab\u5220\u9664\u7684\u8bb0\u5f55\uff09\uff0c\u518d\u7531\u5b9a\u65f6\u4efb\u52a1\u6765\u8f6e\u8be2\u53d1\u9001<\/li><\/ol>\n\n\n\n
        \"image.png\"\/<\/div><\/a><\/figure>\n\n\n\n
        \u8fd8\u6709\u5176\u4ed6\u65b9\u6848\u5417\uff1f\u6709\u7684\u3002<\/p>\n\n\n\n
        d\uff09\u6570\u636e\u5bf9\u8d26\u3001\u53d1\u73b0\u4e0d\u4e00\u81f4\u65f6\u8fdb\u884c\u8865\u507f\u5904\u7406\u3001\u4ee5\u6b64\u4fdd\u8bc1\u6570\u636e\u7684\u6700\u7ec8\u4e00\u81f4\u3002\u5176\u5b9e\u4e0d\u7ba1\u4f7f\u7528\u54ea\u79cd\u65b9\u6848\u6765\u4fdd\u8bc1\u6570\u636e\u5e93\u72b6\u6001\u53d8\u66f4\u548c\u6d88\u606f\u7684\u4e00\u81f4\uff0c\u6570\u636e\u5bf9\u8d26\u7684\u65b9\u6848\u90fd\u662f\"\u5fc5\u987b\"\u8981\u6709\u7684\u4e00\u79cd\u515c\u5e95\u65b9\u6848\u3002<\/p>\n\n\n\n
        \u90a3\u4e48\u3001\u8fd8\u6709\u5176\u4ed6\u65b9\u6848\u5417\uff1f\u8fd8\u662f\u6709\u7684\uff0c\u5bf9\u4e8e\u6570\u636e\u5e93\u72b6\u6001\u53d8\u66f4\u548c\u6d88\u606f\u7684\u4e00\u81f4\u6027\u7684\u95ee\u9898\uff0c\u7ec6\u8282\u6bd4\u8f83\u591a\uff0c\u6bcf\u79cd\u65b9\u6848\u53c8\u90fd\u6709\u76f8\u5e94\u7684\u4f18\u7f3a\u70b9\uff0c\u672c\u6587\u4e3b\u8981\u662f\u4ecb\u7ecd\u72b6\u6001\u673a\u5f15\u64ce\u7684\u8bbe\u8ba1\uff0c\u5bf9\u4e8e\u6d88\u606f\u4e00\u81f4\u6027\u7684\u95ee\u9898\u5c31\u4e0d\u8fc7\u591a\u4ecb\u7ecd\uff0c\u540e\u9762\u4e5f\u8bb8\u4f1a\u6709\u5355\u72ec\u7684\u6587\u7ae0\u5bf9\u6570\u636e\u5e93\u53d8\u66f4\u548c\u6d88\u606f\u7684\u4e00\u81f4\u6027\u7684\u95ee\u9898\u8fdb\u884c\u4ecb\u7ecd\u548c\u8ba8\u8bba\u3002<\/p>\n\n\n\n
        2 \u6a2a\u5411\u89e3\u51b3\u903b\u8f91\u590d\u7528\u548c\u5b9e\u73b0\u4e1a\u52a1\u6269\u5c55<\/p>\n\n\n\n
        \u5b9e\u73b0\u57fa\u4e8e\"\u591a\u7c7b\u578b+\u591a\u573a\u666f+\u591a\u7ef4\u5ea6\"\u7684\u4ee3\u7801\u5206\u79bb\u6cbb\u7406\u3001\u4ee5\u53ca\u6807\u51c6\u5904\u7406\u6d41\u7a0b\u6a21\u677f\u7684\u72b6\u6001\u673a\u6a21\u578b\u4e4b\u540e\uff0c\u5176\u5b9e\u5728\u771f\u6b63\u7f16\u7801\u7684\u65f6\u5019\u4f1a\u53d1\u73b0\u4e0d\u540c\u7c7b\u578b\u4e0d\u540c\u7ef4\u5ea6\u5bf9\u4e8e\u540c\u4e00\u4e2a\u72b6\u6001\u7684\u6d41\u7a0b\u5904\u7406\u8fc7\u7a0b\uff0c\u6709\u65f6\u591a\u4e2a\u5904\u7406\u903b\u8f91\u4e2d\u7684\u4e00\u90e8\u5206\u6d41\u7a0b\u4e00\u6837\u7684\u6216\u8005\u662f\u76f8\u4f3c\u7684\uff0c\u6bd4\u5982\u652f\u4ed8\u73af\u8282\u4e0d\u7ba1\u662f\u91c7\u7528\u514d\u5bc6\u8fd8\u662f\u5176\u4ed6\u65b9\u5f0f\u3001\u5176\u4e2d\u6838\u9500\u4f18\u60e0\u5238\u7684\u5904\u7406\u903b\u8f91\u3001\u8bbe\u7f6e\u53d1\u7968\u91d1\u989d\u7684\u5904\u7406\u903b\u8f91\u7b49\u90fd\u662f\u4e00\u6837\u7684\uff1b\u751a\u81f3\u6709\u4e9b\u65f6\u5019\u591a\u4e2a\u7c7b\u578b\u95f4\u7684\u5904\u7406\u903b\u8f91\u5927\u90e8\u5206\u662f\u76f8\u540c\u7684\u800c\u5dee\u5f02\u662f\u5c0f\u90e8\u5206\uff0c\u6bd4\u5982\u4e0b\u5355\u6d41\u7a0b\u7684\u5904\u7406\u903b\u8f91\u57fa\u672c\u903b\u8f91\u90fd\u5dee\u4e0d\u591a\uff0c\u800c\u51fa\u79df\u8f66\u5bf9\u6bd4\u7f51\u7ea6\u8f66\u53ef\u80fd\u5c31\u591a\u4e86\u51fa\u79df\u8f66\u7ea2\u5305\u3001\u65e0\u9884\u4f30\u4ef7\u7b49\u4e2a\u522b\u6d41\u7a0b\u7684\u5dee\u5f02\u3002<\/p>\n\n\n\n
        \u5bf9\u4e8e\u4e0a\u9762\u8fd9\u79cd\u60c5\u51b5\u3001\u5176\u5b9e\u5c31\u662f\u8981\u5b9e\u73b0\u5728\u7eb5\u5411\u89e3\u51b3\u4e1a\u52a1\u9694\u79bb\u548c\u6d41\u7a0b\u7f16\u6392\u7684\u57fa\u7840\u4e0a\uff0c\u9700\u8981\u652f\u6301\u5c0f\u90e8\u5206\u903b\u8f91\u6216\u4ee3\u7801\u6bb5\u7684\u590d\u7528\u3001\u6216\u8005\u5927\u90e8\u5206\u6d41\u7a0b\u7684\u590d\u7528\uff0c\u51cf\u5c11\u91cd\u590d\u5efa\u8bbe\u548c\u5f00\u53d1\u3002\u5bf9\u6b64\u6211\u4eec\u5728\u72b6\u6001\u673a\u5f15\u64ce\u4e2d\u652f\u6301\u4e24\u79cd\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n\n\n\n
        \u57fa\u4e8e\u63d2\u4ef6\u5316\u7684\u89e3\u51b3\u65b9\u6848<\/strong><\/p>\n\n\n\n
        \u63d2\u4ef6\u7684\u4e3b\u8981\u903b\u8f91\u662f\uff1a\u53ef\u4ee5\u5728\u4e1a\u52a1\u903b\u8f91\u6267\u884c\uff08action\uff09\u3001\u6570\u636e\u6301\u4e45\u5316\uff08save\uff09\u8fd9\u4e24\u4e2a\u8282\u70b9\u524d\u52a0\u8f7d\u5bf9\u5e94\u5230\u7684\u63d2\u4ef6\u7c7b\u8fdb\u884c\u6267\u884c\uff0c\u4e3b\u8981\u662f\u5bf9\u4e0a\u4e0b\u6587Context\u5bf9\u8c61\u8fdb\u884c\u64cd\u4f5c\u3001\u6216\u8005\u6839\u636eContext\u53c2\u6570\u53d1\u8d77\u4e0d\u540c\u7684\u6d41\u7a0b\u8c03\u7528\uff0c\u5df2\u5230\u8fbe\u6539\u53d8\u4e1a\u52a1\u6570\u636e\u6216\u6d41\u7a0b\u7684\u76ee\u7684\u3002<\/p>\n\n\n\n
        \uff081\uff09\u6807\u51c6\u6d41\u7a0b+\u5dee\u5f02\u5316\u63d2\u4ef6<\/p>\n\n\n\n
        \u4e0a\u9762\u8bb2\u5230\u540c\u4e00\u4e2a\u72b6\u6001\u6a21\u578b\u4e0b\u3001\u4e0d\u540c\u7684\u7c7b\u578b\u6216\u7ef4\u5ea6\u6709\u4e9b\u903b\u8f91\u6216\u5904\u7406\u6d41\u7a0b\u662f\u4e00\u6837\u7684\u5c0f\u90e8\u5206\u903b\u8f91\u662f\u4e0d\u540c\u7684\u3002\u4e8e\u662f\u6211\u4eec\u53ef\u4ee5\u628a\u4e00\u79cd\u5904\u7406\u6d41\u7a0b\u5b9a\u4e49\u4e3a\u6807\u51c6\u7684\u6216\u9ed8\u8ba4\u7684\u5904\u7406\u903b\u8f91\uff0c\u628a\u5dee\u5f02\u5316\u7684\u4ee3\u7801\u5199\u6210\u63d2\u4ef6\uff0c\u5f53\u4e1a\u52a1\u6267\u884c\u5230\u5177\u4f53\u5dee\u5f02\u5316\u903b\u8f91\u65f6\u4f1a\u8c03\u7528\u5230\u4e0d\u540c\u7684\u63d2\u4ef6\u8fdb\u884c\u5904\u7406\uff0c\u8fd9\u6837\u53ea\u9700\u8981\u4e3a\u4e0d\u540c\u7684\u7c7b\u578b\u6216\u7ef4\u5ea6\u7f16\u5199\u5bf9\u5e94\u6709\u5dee\u5f02\u903b\u8f91\u7684\u63d2\u4ef6\u5373\u53ef\u3001\u6807\u51c6\u7684\u5904\u7406\u6d41\u7a0b\u7531\u9ed8\u8ba4\u7684\u5904\u7406\u5668\u6267\u884c\u5c31\u884c\u3002<\/p>\n\n\n\n
        \"image.png\"\/<\/div><\/a><\/figure>\n\n\n\n
        \uff082\uff09\u5dee\u5f02\u6d41\u7a0b+\u516c\u7528\u63d2\u4ef6<\/p>\n\n\n\n
        \u5f53\u7136\u5bf9\u4e8e\u5c0f\u90e8\u5206\u903b\u8f91\u548c\u4ee3\u7801\u53ef\u4ee5\u516c\u7528\u7684\u573a\u666f\uff0c\u4e5f\u53ef\u4ee5\u7528\u63d2\u4ef6\u5316\u7684\u65b9\u6848\u89e3\u51b3\u3002\u6bd4\u5982\u5bf9\u4e8e\u540c\u4e00\u4e2a\u72b6\u6001\u4e0b\u591a\u4e2a\u7ef4\u4fee\u4e0b\u4e0d\u540c\u5904\u7406\u5668\u4e2d\u3001\u6211\u4eec\u53ef\u4ee5\u628a\u76f8\u540c\u7684\u903b\u8f91\u6216\u4ee3\u7801\u5c01\u88c5\u6210\u4e00\u4e2a\u63d2\u4ef6\uff0c\u591a\u4e2a\u5904\u7406\u5668\u4e2d\u90fd\u53ef\u4ee5\u8bc6\u522b\u52a0\u8f7d\u8be5\u63d2\u4ef6\u8fdb\u884c\u6267\u884c\uff0c\u4ece\u800c\u5b9e\u73b0\u591a\u4e2a\u5dee\u5f02\u7684\u6d41\u7a0b\u4f7f\u7528\u60f3\u7528\u63d2\u4ef6\u7684\u5f62\u5f0f\u3002<\/p>\n\n\n\n
        \/**\n * \u63d2\u4ef6\u6ce8\u89e3\n *\/\n@Target({ElementType.TYPE})\n@Retention(RetentionPolicy.RUNTIME)\n@Documented\n@Inherited\n@Component\npublic @interface ProcessorPlugin {\n    \/**\n     * \u6307\u5b9a\u72b6\u6001\uff0cstate\u4e0d\u80fd\u540c\u65f6\u5b58\u5728\n     *\/\n    String[] state() default {};\n    \/**\n     * \u8ba2\u5355\u64cd\u4f5c\u4e8b\u4ef6\n     *\/\n    String event();\n    \/**\n     * \u4e1a\u52a1\n     *\/\n    String[] bizCode() default {};\n    \/**\n     * \u573a\u666f\n     *\/\n    String[] sceneId() default {};\n}\n * \u63d2\u4ef6\u5904\u7406\u5668\n *\/\npublic interface PluginHandler<T, C> extends StateProcessor<T, C> {\n}\n<\/code><\/pre>\n\n\n\n
        Plug\u5728\u5904\u7406\u5668\u6a21\u677f\u4e2d\u7684\u6267\u884c\u903b\u8f91\u3002<\/p>\n\n\n\n
        public abstract class AbstractStateProcessor<T, C> implements StateProcessor<T>, StateActionStep<T, C> {\n    @Override\n    public final ServiceResult<T> action(StateContext<C> context) throws Exception {\n        ServiceResult<T> result = null;\n        try {\n            ......\n            \/\/ \u4e1a\u52a1\u903b\u8f91\n            result = this.action(nextState, context);\n            if (!result.isSuccess()) {\n                return result;\n            }\n\n            \/\/ \u5728action\u548csave\u4e4b\u95f4\u6267\u884c\u63d2\u4ef6\u903b\u8f91\n            this.pluginExecutor.parallelExecutor(context);\n            \/\/ \u6301\u4e45\u5316\n            result = this.save(nextState, context));\n            if (!result.isSuccess()) {\n                return result;\n            }\n            ......\n        } catch (Exception e) {\n            throw e;\n        }\n    }\n<\/code><\/pre>\n\n\n\n
        \u63d2\u4ef6\u4f7f\u7528\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n
        \/**\n * \u9884\u4f30\u4ef7\u63d2\u4ef6\n *\/\n@ProcessorPlugin(state = OrderStateEnum.INIT, event = OrderEventEnum.CREATE, bizCode = "BUSINESS")\npublic class EstimatePricePlugin implements PluginHandler<String, CreateOrderContext> {\n    @Override\n    public ServiceResult action(StateContext<CreateOrderContext> context) throws Exception {\n\/\/        String price = priceSerive.getPrice();\n        String price = "";\n        context.getContext().setEstimatePriceInfo(price);\n        return new ServiceResult();\n    }\n}\n<\/code><\/pre>\n\n\n\n
        \u57fa\u4e8e\u4ee3\u7801\u7ee7\u627f\u65b9\u5f0f\u7684\u89e3\u51b3\u65b9\u6848<\/strong><\/p>\n\n\n\n
        \u5f53\u53d1\u73b0\u65b0\u589e\u4e00\u4e2a\u72b6\u6001\u4e0d\u540c\u7ef4\u5ea6\u7684\u5904\u7406\u6d41\u7a0b\uff0c\u548c\u5f53\u524d\u5df2\u5b58\u5728\u7684\u4e00\u4e2a\u5904\u7406\u5668\u5927\u90e8\u5206\u903b\u8f91\u662f\u76f8\u540c\u7684\uff0c\u6b64\u65f6\u5c31\u53ef\u4ee5\u4f7f\u65b0\u5199\u7684\u8fd9\u4e2a\u5904\u7406\u5668B\u7ee7\u627f\u5df2\u5b58\u5728\u7684\u5904\u7406\u5668A\uff0c\u53ea\u9700\u8981\u8ba9\u5904\u7406\u5668B\u8986\u5199A\u4e2d\u4e0d\u540c\u65b9\u6cd5\u903b\u8f91\u3001\u5b9e\u73b0\u5dee\u5f02\u903b\u8f91\u7684\u66ff\u6362\u3002\u8fd9\u79cd\u65b9\u6848\u6bd4\u8f83\u597d\u7406\u89e3\uff0c\u4f46\u662f\u9700\u8981\u5904\u7406\u5668A\u5df2\u7ecf\u89c4\u5212\u597d\u4e00\u4e9b\u53ef\u4ee5\u6269\u5c55\u7684\u70b9\u3001\u5176\u4ed6\u5904\u7406\u5668\u53ef\u4ee5\u57fa\u4e8e\u8fd9\u4e9b\u6269\u5c55\u70b9\u8fdb\u884c\u8986\u5199\u66ff\u6362\u3002\u5f53\u7136\u66f4\u597d\u7684\u65b9\u6848\u5176\u5b9e\u662f\uff0c\u5148\u5b9e\u73b0\u4e00\u4e2a\u9ed8\u8ba4\u7684\u5904\u7406\u5668\uff0c\u628a\u6240\u6709\u7684\u6807\u51c6\u5904\u7406\u6d41\u7a0b\u548c\u53ef\u6269\u5c55\u70b9\u8fdb\u884c\u5c01\u88c5\u5b9e\u73b0\u3001\u5176\u4ed6\u5904\u7406\u5668\u8fdb\u884c\u7ee7\u627f\u3001\u8986\u5199\u3001\u66ff\u6362\u5c31\u597d\u3002<\/p>\n\n\n\n
        @OrderProcessor(state = OrderStateEnum.INIT, event = OrderEventEnum.CREATE, bizCode = "CHEAP")\npublic class OrderCreatedProcessor extends AbstractStateProcessor<String, CreateOrderContext> {\n    @Override\n    public ServiceResult action(String nextState, StateContext<CreateOrderContext> context) throws Exception {\n        CreateEvent createEvent = (CreateEvent) context.getOrderStateEvent();\n        \/\/ \u4fc3\u9500\u4fe1\u606f\u4fe1\u606f\n        String promtionInfo = this.doPromotion();\n        ......\n    }\n\n    \/**\n     * \u4fc3\u9500\u76f8\u5173\u6269\u5c55\u70b9\n     *\/\n    protected String doPromotion() {\n        return "1";\n    }\n}\n@OrderProcessor(state = OrderStateEnum.INIT, event = OrderEventEnum.CREATE, bizCode = "TAXI")\npublic class OrderCreatedProcessor4Taxi extends OrderCreatedProcessor<String, CreateOrderContext>  {\n    @Override\n    protected String doPromotion() {\n        return "taxt1";\n    }\n}\n<\/code><\/pre>\n\n\n\n
        3 \u72b6\u6001\u8fc1\u79fb\u6d41\u7a0b\u7684\u6267\u884c\u6d41\u7a0b<\/p>\n\n\n\n
        \u72b6\u6001\u673a\u5f15\u64ce\u7684\u6267\u884c\u8fc7\u7a0b<\/strong><\/p>\n\n\n\n
        \u901a\u8fc7\u4e0a\u9762\u7684\u4ecb\u7ecd\uff0c\u5927\u4f53\u660e\u767d\u4e86\u600e\u4e48\u5b9e\u73b0\u72b6\u6001\u6d41\u7a0b\u7f16\u6392\u3001\u4e1a\u52a1\u9694\u79bb\u548c\u6269\u5c55\u7b49\u7b49\uff0c\u4f46\u662f\u72b6\u6001\u673a\u5f15\u64ce\u5177\u4f53\u662f\u600e\u4e48\u628a\u8fd9\u4e2a\u8fc7\u7a0b\u4e32\u8054\u8d77\u6765\u7684\u5462\uff1f\u7b80\u5355\u8bf4\u3001\u5206\u4e3a\u4e24\u4e2a\u9636\u6bb5\uff1a\u521d\u59cb\u5316\u9636\u6bb5\u548c\u8fd0\u884c\u65f6\u9636\u6bb5\u3002<\/p>\n\n\n\n
        \uff081\uff09\u72b6\u6001\u673a\u5f15\u64ce\u521d\u59cb\u5316\u9636\u6bb5<\/p>\n\n\n\n
        \u9996\u5148\u5728\u4ee3\u7801\u7f16\u5199\u9636\u6bb5\u3001\u6839\u636e\u4e0a\u9762\u7684\u5206\u6790\uff0c\u4e1a\u52a1\u901a\u8fc7\u5b9e\u73b0AbstractStateProcessor\u6a21\u677f\u7c7b\u3001\u5e76\u6dfb\u52a0@OrderProcessor\u6ce8\u89e3\u6765\u5b9e\u73b0\u81ea\u5df1\u7684\u591a\u4e2a\u9700\u8981\u7684\u7279\u5b9a\u72b6\u6001\u5904\u7406\u5668\u3002<\/p>\n\n\n\n
        \u90a3\u4e48\u5728\u7cfb\u7edf\u521d\u59cb\u5316\u9636\u6bb5\uff0c\u6240\u6709\u6dfb\u52a0\u4e86@OrderProcessor\u6ce8\u89e3\u7684\u5b9e\u73b0\u7c7b\u90fd\u4f1a\u88abspring\u6240\u7ba1\u7406\u6210\u4e3aspring bean\uff0c\u72b6\u6001\u673a\u5f15\u64ce\u5728\u901a\u8fc7\u76d1\u542cspring bean\u7684\u6ce8\u518c\uff08BeanPostProcessor\uff09\u6765\u5c06\u8fd9\u4e9b\u72b6\u6001\u5904\u7406\u5668processor\u88c5\u8f7d\u5230\u81ea\u5df1\u7ba1\u7406\u7684\u5bb9\u5668\u4e2d\u3002\u76f4\u767d\u6765\u8bf4\u3001\u8fd9\u4e2a\u72b6\u6001\u5904\u7406\u5668\u5bb9\u5668\u5176\u5b9e\u5c31\u662f\u4e00\u4e2a\u591a\u5c42map\u5b9e\u73b0\u7684\uff0c\u7b2c\u4e00\u5c42map\u7684key\u662f\u72b6\u6001\uff08state\uff09\uff0c\u7b2c\u4e8c\u5c42map\u7684key\u662f\u72b6\u6001\u5bf9\u5e94\u7684\u4e8b\u4ef6\uff08event\uff09\u3001\u4e00\u4e2a\u72b6\u6001\u53ef\u4ee5\u6709\u591a\u4e2a\u8981\u5904\u7406\u7684\u4e8b\u4ef6\uff0c\u7b2c\u4e09\u5c42map\u7684key\u662f\u5177\u4f53\u7684\u573a\u666fcode\uff08\u4e5f\u5c31\u662fbizCode\u548csceneId\u7684\u7ec4\u5408\uff09\uff0c\u6700\u540e\u7684value\u662fAbstractStateProcessor\u96c6\u5408\u3002<\/p>\n\n\n\n
        public class DefaultStateProcessRegistry implements BeanPostProcessor {\n    \/**\n     * \u7b2c\u4e00\u5c42key\u662f\u8ba2\u5355\u72b6\u6001\u3002\n     * \u7b2c\u4e8c\u5c42key\u662f\u8ba2\u5355\u72b6\u6001\u5bf9\u5e94\u7684\u4e8b\u4ef6\uff0c\u4e00\u4e2a\u72b6\u6001\u53ef\u4ee5\u6709\u591a\u4e2a\u4e8b\u4ef6\u3002\n     * \u7b2c\u4e09\u5c42key\u662f\u5177\u4f53\u573a\u666fcode\uff0c\u573a\u666f\u4e0b\u5bf9\u5e94\u7684\u591a\u4e2a\u5904\u7406\u5668\uff0c\u9700\u8981\u540e\u7eed\u8fdb\u884c\u8fc7\u6ee4\u9009\u62e9\u51fa\u4e00\u4e2a\u5177\u4f53\u7684\u6267\u884c\u3002\n     *\/\n    private static Map<String, Map<String, Map<String, List<AbstractStateProcessor>>>> stateProcessMap = new ConcurrentHashMap<>();\n    @Override\n    public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {\n        if (bean instanceof AbstractStateProcessor && bean.getClass().isAnnotationPresent(OrderProcessor.class)) {\n            OrderProcessor annotation = bean.getClass().getAnnotation(OrderProcessor.class);\n            String[] states = annotation.state();\n            String event = annotation.event();\n            String[] bizCodes = annotation.bizCode().length == 0 ? new String[]{"#"} : annotation.bizCode();\n            String[] sceneIds = annotation.sceneId().length == 0 ? new String[]{"#"} : annotation.sceneId();\n            initProcessMap(states, event, bizCodes, sceneIds, stateProcessMap, (AbstractStateProcessor) bean);\n        }\n        return bean;\n    }\n    private <E extends StateProcessor> void initProcessMap(String[] states, String event, String[] bizCodes, String[] sceneIds,\n            Map<String, Map<String, Map<String, List<E>>>> map, E processor) {\n        for (String bizCode : bizCodes) {\n            for (String sceneId : sceneIds) {\n                Arrays.asList(states).parallelStream().forEach(orderStateEnum -> {\n                    registerStateHandlers(orderStateEnum, event, bizCode, sceneId, map, processor);\n                });\n            }\n        }\n    }\n    \/**\n     * \u521d\u59cb\u5316\u72b6\u6001\u673a\u5904\u7406\u5668\n     *\/\n    public <E extends StateProcessor> void registerStateHandlers(String orderStateEnum, String event, String bizCode, String sceneId,\n                                      Map<String, Map<String, Map<String, List<E>>>> map, E processor) {\n        \/\/ state\u7ef4\u5ea6\n        if (!map.containsKey(orderStateEnum)) {\n            map.put(orderStateEnum, new ConcurrentHashMap<>());\n        }\n        Map<String, Map<String, List<E>>> stateTransformEventEnumMap = map.get(orderStateEnum);\n        \/\/ event\u7ef4\u5ea6\n        if (!stateTransformEventEnumMap.containsKey(event)) {\n            stateTransformEventEnumMap.put(event, new ConcurrentHashMap<>());\n        }\n        \/\/ bizCode and sceneId\n        Map<String, List<E>> processorMap = stateTransformEventEnumMap.get(event);\n        String bizCodeAndSceneId = bizCode + "@" + sceneId;\n        if (!processorMap.containsKey(bizCodeAndSceneId)) {\n            processorMap.put(bizCodeAndSceneId, new CopyOnWriteArrayList<>());\n        }\n        processorMap.get(bizCodeAndSceneId).add(processor);\n    }\n}\n<\/code><\/pre>\n\n\n\n
        \uff082\uff09\u72b6\u6001\u673a\u5f15\u64ce\u8fd0\u884c\u65f6\u9636\u6bb5<\/p>\n\n\n\n
        \u7ecf\u8fc7\u521d\u59cb\u5316\u4e4b\u540e\uff0c\u6240\u6709\u7684\u72b6\u6001\u5904\u7406\u5668processor\u90fd\u88ab\u88c5\u8f7d\u5230\u5bb9\u5668\u3002\u5728\u8fd0\u884c\u65f6\uff0c\u901a\u8fc7\u4e00\u4e2a\u5165\u53e3\u6765\u53d1\u8d77\u5bf9\u72b6\u6001\u673a\u7684\u8c03\u7528\uff0c\u65b9\u6cd5\u7684\u4e3b\u8981\u53c2\u6570\u662f\u64cd\u4f5c\u4e8b\u4ef6\uff08event\uff09\u548c\u4e1a\u52a1\u5165\u53c2\uff0c\u5982\u679c\u662f\u65b0\u521b\u5efa\u8ba2\u5355\u8bf7\u6c42\u9700\u8981\u643a\u5e26\u4e1a\u52a1\uff08bizCode\uff09\u548c\u573a\u666f\uff08sceneId\uff09\u4fe1\u606f\u3001\u5982\u679c\u662f\u5df2\u5b58\u5728\u8ba2\u5355\u7684\u66f4\u65b0\u72b6\u6001\u673a\u5f15\u64ce\u4f1a\u6839\u636eoderId\u81ea\u52a8\u83b7\u53d6\u4e1a\u52a1\uff08bizCode\uff09\u3001\u573a\u666f\uff08sceneId\uff09\u548c\u5f53\u524d\u72b6\u6001\uff08state\uff09\u3002\u4e4b\u540e\u5f15\u64ce\u6839\u636estate+event+bizCode+sceneId\u4ece\u72b6\u6001\u5904\u7406\u5668\u5bb9\u5668\u4e2d\u83b7\u53d6\u5230\u5bf9\u5e94\u7684\u5177\u4f53\u5904\u7406\u5668processor\uff0c\u4ece\u800c\u8fdb\u884c\u72b6\u6001\u8fc1\u79fb\u5904\u7406\u3002<\/p>\n\n\n\n
        \/**\n * \u72b6\u6001\u673a\u6267\u884c\u5f15\u64ce\n *\/\npublic interface OrderFsmEngine {\n    \/**\n     * \u6267\u884c\u72b6\u6001\u8fc1\u79fb\u4e8b\u4ef6\uff0c\u4e0d\u4f20FsmOrder\u9ed8\u8ba4\u4f1a\u6839\u636eorderId\u4eceFsmOrderService\u63a5\u53e3\u83b7\u53d6\n     *\/\n    <T> ServiceResult<T> sendEvent(OrderStateEvent orderStateEvent) throws Exception;\n    \/**\n     * \u6267\u884c\u72b6\u6001\u8fc1\u79fb\u4e8b\u4ef6\uff0c\u53ef\u643a\u5e26FsmOrder\u53c2\u6570\n     *\/\n    <T> ServiceResult<T> sendEvent(OrderStateEvent orderStateEvent, FsmOrder fsmOrder) throws Exception;\n}\n@Component\npublic class DefaultOrderFsmEngine implements OrderFsmEngine {\n    @Override\n    public <T> ServiceResult<T> sendEvent(OrderStateEvent orderStateEvent) throws Exception {\n        FsmOrder fsmOrder = null;\n        if (orderStateEvent.newCreate()) {\n            fsmOrder = this.fsmOrderService.getFsmOrder(orderStateEvent.getOrderId());\n            if (fsmOrder == null) {\n                throw new FsmException(ErrorCodeEnum.ORDER_NOT_FOUND);\n            }\n        }\n        return sendEvent(orderStateEvent, fsmOrder);\n    }\n    @Override\n    public <T> ServiceResult<T> sendEvent(OrderStateEvent orderStateEvent, FsmOrder fsmOrder) throws Exception {\n        \/\/ \u6784\u9020\u5f53\u524d\u4e8b\u4ef6\u4e0a\u4e0b\u6587\n        StateContext context = this.getStateContext(orderStateEvent, fsmOrder);\n        \/\/ \u83b7\u53d6\u5f53\u524d\u4e8b\u4ef6\u5904\u7406\u5668\n        StateProcessor<T> stateProcessor = this.getStateProcessor(context);\n        \/\/ \u6267\u884c\u5904\u7406\u903b\u8f91\n        return stateProcessor.action(context);\n    }\n    private <T> StateProcessor<T, ?> getStateProcessor(StateContext<?> context) {\n        OrderStateEvent stateEvent = context.getOrderStateEvent();\n        FsmOrder fsmOrder = context.getFsmOrder();\n        \/\/ \u6839\u636e\u72b6\u6001+\u4e8b\u4ef6\u5bf9\u8c61\u83b7\u53d6\u6240\u5bf9\u5e94\u7684\u4e1a\u52a1\u5904\u7406\u5668\u96c6\u5408\n        List<AbstractStateProcessor> processorList = stateProcessorRegistry.acquireStateProcess(fsmOrder.getOrderState(),\n                stateEvent.getEventType(), fsmOrder.bizCode(), fsmOrder.sceneId());\n        if (processorList == null) {\n            \/\/ \u8ba2\u5355\u72b6\u6001\u53d1\u751f\u6539\u53d8\n            if (!Objects.isNull(stateEvent.orderState()) && !stateEvent.orderState().equals(fsmOrder.getOrderState())) {\n                throw new FsmException(ErrorCodeEnum.ORDER_STATE_NOT_MATCH);\n            }\n            throw new FsmException(ErrorCodeEnum.NOT_FOUND_PROCESSOR);\n        }\n        if (CollectionUtils.isEmpty(processorResult)) {\n            throw new FsmException(ErrorCodeEnum.NOT_FOUND_PROCESSOR);\n        }\n        if (processorResult.size() > 1) {\n            throw new FsmException(ErrorCodeEnum.FOUND_MORE_PROCESSOR);\n        }\n        return processorResult.get(0);\n    }\n    private StateContext<?> getStateContext(OrderStateEvent orderStateEvent, FsmOrder fsmOrder) {\n        StateContext<?> context = new StateContext(orderStateEvent, fsmOrder);\n        return context;\n    }\n}\n<\/code><\/pre>\n\n\n\n
        \u68c0\u6d4b\u5230\u591a\u4e2a\u72b6\u6001\u6267\u884c\u5668\u600e\u4e48\u5904\u7406<\/strong><\/p>\n\n\n\n
        \u6709\u4e00\u70b9\u8981\u8bf4\u660e\uff0c\u6709\u53ef\u80fd\u6839\u636estate+event+bizCode+sceneId\u4fe1\u606f\u83b7\u53d6\u5230\u7684\u662f\u591a\u4e2a\u72b6\u6001\u5904\u7406\u5668processor\uff0c\u6709\u53ef\u80fd\u786e\u5b9e\u4e1a\u52a1\u9700\u8981\u5355\u7eaf\u4f9d\u8d56bizCode\u548csceneId\u4e24\u4e2a\u5c5e\u6027\u65e0\u6cd5\u6709\u6548\u8bc6\u522b\u548c\u5b9a\u4f4d\u552f\u4e00processor\uff0c\u90a3\u4e48\u6211\u4eec\u8fd9\u91cc\u7ed9\u4e1a\u52a1\u5f00\u4e00\u4e2a\u53e3\u3001\u7531\u4e1a\u52a1\u51b3\u5b9a\u4ece\u591a\u4e2a\u5904\u7406\u5668\u4e2d\u9009\u4e00\u4e2a\u9002\u5408\u5f53\u524d\u4e0a\u4e0b\u6587\u7684\uff0c\u5177\u4f53\u505a\u6cd5\u662f\u4e1a\u52a1processor\u901a\u8fc7filter\u65b9\u6cd5\u6839\u636e\u5f53\u524dcontext\u6765\u5224\u65ad\u662f\u5426\u7b26\u5408\u8c03\u7528\u6761\u4ef6\u3002<\/p>\n\n\n\n
        private <T> StateProcessor<T, ?> getStateProcessor(StateContext<?> context) {\n    \/\/ \u6839\u636e\u72b6\u6001+\u4e8b\u4ef6\u5bf9\u8c61\u83b7\u53d6\u6240\u5bf9\u5e94\u7684\u4e1a\u52a1\u5904\u7406\u5668\u96c6\u5408\n    List<AbstractStateProcessor> processorList = ...\n    ......\n\n    List<AbstractStateProcessor> processorResult = new ArrayList<>(processorList.size());\n    \/\/ \u6839\u636e\u4e0a\u4e0b\u6587\u83b7\u53d6\u552f\u4e00\u7684\u4e1a\u52a1\u5904\u7406\u5668\n    for (AbstractStateProcessor processor : processorList) {\n        if (processor.filter(context)) {\n            processorResult.add(processor);\n        }\n    }\n    ......\n}\n<\/code><\/pre>\n\n\n\n
        filter\u5728\u5177\u4f53\u72b6\u6001\u5904\u7406\u5668processor\u4e2d\u7684\u4f7f\u7528\u4e3e\u4f8b\uff1a<\/p>\n\n\n\n
        @OrderProcessor(state = OrderStateEnum.INIT, event = OrderEventEnum.CREATE, bizCode = "BUSINESS")\npublic class OrderCreatedProcessor extends AbstractStateProcessor<String, CreateOrderContext> {\n    ......\n    @Override\n    public boolean filter(StateContext<CreateOrderContext> context) {\n        OrderInfo orderInfo = (OrderInfo) context.getFsmOrder();\n        if (orderInfo.getServiceType() == ServiceType.TAKEOFF_CAR) {\n            return true;\n        }\n        return false;\n    }\n    ......\n}\n<\/code><\/pre>\n\n\n\n
        \u5f53\u7136\uff0c\u5982\u679c\u6700\u7ec8\u7ecf\u8fc7\u4e1a\u52a1filter\u4e4b\u540e\uff0c\u8fd8\u662f\u6709\u591a\u4e2a\u72b6\u6001\u5904\u7406\u5668\u7b26\u5408\u6761\u4ef6\uff0c\u90a3\u4e48\u8fd9\u91cc\u53ea\u80fd\u629b\u5f02\u5e38\u5904\u7406\u4e86\u3002\u8fd9\u4e2a\u9700\u8981\u5728\u5f00\u53d1\u65f6\uff0c\u5bf9\u72b6\u6001\u548c\u591a\u7ef4\u5ea6\u5904\u7406\u5668\u6709\u8be6\u7ec6\u89c4\u5212\u3002<\/p>\n\n\n\n
        4 \u72b6\u6001\u673a\u5f15\u64ce\u6267\u884c\u603b\u7ed3<\/p>\n\n\n\n
        \u72b6\u6001\u673a\u5f15\u64ce\u5904\u7406\u6d41\u7a0b<\/strong><\/p>\n\n\n\n
        \u7b80\u6613\u7684\u72b6\u6001\u673a\u5f15\u64ce\u7684\u6267\u884c\u6d41\u7a0b\u6574\u7406\uff0c\u4e3b\u8981\u4ecb\u7ecd\u8fd0\u884c\u65f6\u7684\u72b6\u6001\u673a\u6267\u884c\u8fc7\u7a0b\u3002<\/p>\n\n\n\n
        \"image.png\"\/<\/div><\/a><\/figure>\n\n\n\n
        \u72b6\u6001\u5904\u7406\u5668\u7684\u539f\u7406<\/strong><\/p>\n\n\n\n
        \u7b80\u6613\u7684\u72b6\u6001\u673a\u5904\u7406\u5668\u7684\u539f\u7406\u548c\u4f9d\u8d56\u6574\u7406\uff0c\u4e3b\u8981\u4ecb\u7ecd\u72b6\u6001\u5904\u7406\u5668\u7684\u6d41\u7a0b\u548c\u7ec6\u8282\u3002<\/p>\n\n\n\n
        \"image.png\"\/<\/div><\/a><\/figure>\n\n\n\n
        \u4e09 \u5176\u4ed6<\/h3>\n\n\n\n
        \u8fd8\u6709\u5176\u4ed6\u95ee\u9898\u4e48\uff0c\u60f3\u4e00\u4e0b\u3002<\/p>\n\n\n\n
        1 \u72b6\u6001\u6d41\u8f6c\u5e76\u53d1\u95ee\u9898\u600e\u4e48\u5904\u7406\uff1f<\/p>\n\n\n\n
        \u5982\u679c\u4e00\u4e2a\u8ba2\u5355\u5f53\u524d\u662f\u72b6\u6001A\u3001\u6b64\u523b\u4ece\u4e0d\u540c\u7684\u7ef4\u5ea6\u6216\u5165\u53e3\u5206\u522b\u53d1\u8d77\u4e86\u4e0d\u540c\u7684\u4e8b\u4ef6\u8bf7\u6c42\uff0c\u6b64\u65f6\u600e\u4e48\u5904\u7406\uff1f<\/p>\n\n\n\n
        \u6bd4\u5982\u5f53\u524d\u8ba2\u5355\u662f\u65b0\u521b\u5efa\u5b8c\u6210\u72b6\u6001\uff0c\u7528\u6237\u53d1\u8d77\u4e86\u53d6\u6d88\u540c\u65f6\u5ba2\u670d\u4e5f\u53d1\u8d77\u4e86\u53d6\u6d88\uff0c\u5728\u6216\u8005\u8ba2\u5355\u662f\u5f85\u652f\u4ed8\u72b6\u6001\u3001\u7cfb\u7edf\u53d1\u8d77\u4e86\u514d\u5bc6\u652f\u4ed8\u540c\u65f6\u5ba2\u670d\u6216\u8005\u7528\u6237\u53d1\u8d77\u4e86\u6539\u4ef7\u3002\u8fd9\u4e9b\u573a\u666f\u4e0d\u7ba1\u662f\u7cfb\u7edf\u7167\u6210\u7684\u5e76\u53d1\u8fd8\u662f\u4e1a\u52a1\u64cd\u4f5c\u9020\u6210\u7684\u5e76\u53d1\uff0c\u5e76\u53d1\u662f\u771f\u5b9e\u5b58\u5728\u7684\u3002\u5bf9\u4e8e\u8fd9\u79cd\u60c5\u51b5\u3001\u539f\u5219\u662f\u540c\u4e00\u65f6\u523b\u4e00\u4e2a\u8ba2\u5355\u53ea\u80fd\u6709\u4e00\u4e2a\u72b6\u6001\u53d8\u66f4\u4e8b\u4ef6\u53ef\u8fdb\u884c\uff0c\u5176\u4ed6\u7684\u8bf7\u6c42\u8981\u4e48\u6392\u961f\u3001\u8981\u4e48\u8fd4\u56de\u7531\u4e0a\u6e38\u8fdb\u884c\u5904\u7406\u6216\u91cd\u8bd5\u7b49\u3002<\/p>\n\n\n\n
        \u6211\u4eec\u7684\u505a\u6cd5\u662f\uff1a<\/p>\n\n\n\n