{"id":863,"date":"2022-01-05T11:41:49","date_gmt":"2022-01-05T03:41:49","guid":{"rendered":"https:\/\/blog.frost-s.com\/?p=863"},"modified":"2022-01-06T09:41:55","modified_gmt":"2022-01-06T01:41:55","slug":"863","status":"publish","type":"post","link":"https:\/\/blog.frost-s.com\/index.php\/2022\/01\/05\/863\/","title":{"rendered":"MapStruct \u62f7\u8d1d\u7c7b\u5c5e\u6027"},"content":{"rendered":"\n

\u80cc\u666f<\/h2>\n\n\n\n

\u6211\u4eec\u6709\u8fd9\u6837\u4e00\u4e2a\u573a\u666f\uff0c\u6709\u4e00\u4e2aStudentDto<\/code>\u7c7b\uff0c\u8fd8\u6709\u4e00\u4e2aStudentVo<\/code>\u7c7b<\/p>\n\n\n\n

@Data\npublic class StudentDto {\n    private String id;\n    private String code;\n    private String sex;\n    private String userName;\n}\n@Data\npublic class StudentVo {\n    private String id;\n    private String name;\n    private String code;\n    private String age;\n    private String score;\n    private String sex;\n}<\/code><\/pre>\n\n\n\n
\u95ee\u9898<\/h3>\n\n\n\n
\u201c<\/p>
\u5982\u679c\u6211\u4eec\u77e5\u9053StudentVo<\/code>\u7684\u503c\uff0c\u9700\u8981\u5c06StudentVo<\/code>\u7684\u5c5e\u6027\u62f7\u8d1d\u5230StudentDto<\/code>\u4e2d\uff0c\u4f60\u4f1a\u600e\u4e48\u505a\u3002<\/p>
\u201d<\/p><\/blockquote>\n\n\n\n
StudentVo<\/code>\u7684\u503c\u5982\u4e0b<\/p>\n\n\n\n
public StudentVo initVo() {\n    StudentVo studentVo = new StudentVo();\n    studentVo.setId(\"1\");\n    studentVo.setAge(\"27\");\n    studentVo.setName(\"Lvshen\");\n    studentVo.setCode(\"001\");\n    studentVo.setScore(\"100\");\n    studentVo.setSex(\"male\");\n    return studentVo;\n}<\/code><\/pre>\n\n\n\n
\u89e3\u51b3\u4e00<\/h2>\n\n\n\n
\u4f20\u7edf\u7684\u89e3\u51b3\u65b9\u6cd5\uff0c\u901a\u8fc7getter\/setter<\/code>\u65b9\u6cd5\u5c06\u5bf9\u5e94\u7684\u5c5e\u6027\u503c\u8fdb\u884c\u62f7\u8d1d\u3002<\/p>\n\n\n\n
@org.junit.Test\npublic void test3() {\n    StudentVo studentVo = initVo();\n    StudentDto studentDto = new StudentDto();\n    studentDto.setCode(studentVo.getCode());\n    studentDto.setId(studentVo.getId());\n    studentDto.setSex(studentVo.getSex());\n    studentDto.setUserName(studentVo.getName());\n\n    System.out.println(studentDto);\n}<\/code><\/pre>\n\n\n\n
\u6d4b\u8bd5\u7ed3\u679c<\/strong><\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u770b\u4e86\u4e0a\u9762\u7684\u65b9\u6cd5\uff0c\u4f60\u53ef\u80fd\u89c9\u5f97\u4e0d\u662f\u5f88\u7b80\u5355\u4e48\u3002\u4f46\u5982\u679c\u5c5e\u6027\u975e\u5e38\u591a\uff0c\u6bd4\u5982\u670920\u591a\u4e2a\u3002\u7528\u4e0a\u9762\u7684\u65b9\u6cd5\u5c31\u4f1a\u4e0d\u7f8e\u89c2\uff0c\u6ee1\u5c4f\u7684getter\/setter<\/code>\u65b9\u6cd5\uff0c\u770b\u7740\u90fd\u773c\u82b1\u3002<\/p>\n\n\n\n
\u89e3\u51b3\u4e8c<\/h2>\n\n\n\n
\u8fd9\u65f6\u6211\u4eec\u5c31\u53ef\u4ee5\u4f7f\u7528BeanUtils.copyProperties<\/code>\u65b9\u6cd5\u5566\uff0c\u8fd9\u91cc\u7684BeanUtils<\/code>\u662fSpring\u7684\uff0c\u800c\u4e0d\u662fapache<\/code>\u7684\u3002<\/p>\n\n\n\n
@org.junit.Test\npublic void test2() {\n    StudentVo studentVo = initVo();\n    StudentDto studentDto = new StudentDto();\n    BeanUtils.copyProperties(studentVo,studentDto);\n\n    System.out.println(studentDto);\n}<\/code><\/pre>\n\n\n\n
\u6d4b\u8bd5\u7ed3\u679c<\/strong><\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u89e3\u51b3\u4e09\uff08\u63a8\u8350\uff09<\/h2>\n\n\n\n
\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528\u6027\u80fd\u66f4\u4f18\u8d8a\u7684MapStruct<\/code>\uff0c\u4f60\u53ef\u80fd\u6ca1\u6709\u542c\u8fc7\u8fd9\u4e2a\u4e1c\u897f\u3002\u6ca1\u5173\u7cfb\uff0c\u6211\u4eec\u76f4\u63a5\u4e0a\u4ee3\u7801\u3002<\/p>\n\n\n\n
MapStruct<\/strong>\u662f\u4e00\u4e2a\u53ef\u4ee5\u751f\u6210\u7c7b\u578b\u5b89\u5168\u7684\uff0c\u9ad8\u6027\u80fd\u7684\u4e14\u65e0\u4f9d\u8d56\u7684 JavaBean \u6620\u5c04\u4ee3\u7801\u7684\u6ce8\u89e3\u5904\u7406\u5668\uff0c\u53ef\u4ee5\u5728\u7f16\u8bd1\u671f\u751f\u6210\u5bf9\u5e94\u7684mapping\uff0c\u65e2\u6ca1\u6709BeanUtils<\/strong>\u7b49\u5de5\u5177\u4f7f\u7528\u53cd\u5c04\u7684\u6027\u80fd\u95ee\u9898\uff0c\u53c8\u514d\u53bb\u4e86\u81ea\u5df1\u5199\u6620\u5c04\u4ee3\u7801\u7684\u7e41\u7410\u3002<\/p>\n\n\n\n
\u5f15\u5165Maven\u4f9d\u8d56<\/p>\n\n\n\n
<dependency>\n    <groupId>org.mapstruct<\/groupId>\n    <artifactId>mapstruct<\/artifactId>\n    <version>1.3.1.Final<\/version>\n<\/dependency>\n\n<dependency>\n    <groupId>org.mapstruct<\/groupId>\n    <artifactId>mapstruct-processor<\/artifactId>\n    <version>1.3.1.Final<\/version>\n<\/dependency><\/code><\/pre>\n\n\n\n
\u5b9e\u4f53\u62f7\u8d1d<\/h3>\n\n\n\n
\u6211\u4eec\u5148\u7f16\u5199\u4e00\u4e2aStudentConverter<\/code>\u7c7b<\/p>\n\n\n\n
@Mapper\npublic interface StudentConverter {\n    StudentConverter INSTANCE = Mappers.getMapper(StudentConverter.class);\n\n    @Mappings(@Mapping(source = \"name\",target = \"userName\"))\n    StudentDto vo2dto(StudentVo vo);\n}<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\u7684@Mapper<\/code>\u6765\u6e90\u4e8eorg.mapstruct.Mapper<\/code>\uff0c\u7528\u6765\u8bf4\u660e\u8fd9\u662f\u4e00\u4e2a\u5b9e\u4f53\u8f6c\u6362\u7c7b\u63a5\u53e3\u3002<\/p>\n\n\n\n
@Mappings<\/code>\u7528\u6765\u58f0\u660e\u6210\u5458\u5c5e\u6027\u7684\u6620\u5c04\uff0csource = \"name\",target = \"userName\"<\/code>\u5373\u5c06StudentVo<\/code>\u4e2dname<\/code>\u7684\u503c\u62f7\u8d1d\u7ed9StudentDto<\/code>\u4e2d\u7684userName<\/code>\uff0c\u5982\u679c\u5c5e\u6027\u540d\u79f0\u76f8\u540c\uff0c\u5c31\u4e0d\u9700\u8981\u505a\u8fd9\u4e2a\u6620\u5c04\u3002<\/p>\n\n\n\n
\u6d4b\u8bd5\u7ed3\u679c<\/strong><\/p>\n\n\n\n
@org.junit.Test\npublic void test1() {\n    StudentVo studentVo = initVo();\n    StudentDto studentDto = StudentConverter.INSTANCE.vo2dto(studentVo);\n\n    System.out.println(studentDto);\n}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
List\u96c6\u5408\u62f7\u8d1d<\/h3>\n\n\n\n
\u4f60\u4ee5\u4e3aMapStruct<\/code>\u53ea\u80fd\u8fdb\u884c\u5b9e\u4f53\u4e4b\u95f4\u7684\u62f7\u8d1d\uff1fNO\uff0cMapStruct<\/code>\u8fd8\u53ef\u4ee5\u8fdb\u884cList\u4e4b\u95f4\u7684\u62f7\u8d1d\uff0c\u8fd9\u4e2a\u5c31\u592a\u725b\u4e86\u3002<\/p>\n\n\n\n
@Mapper\npublic interface StudentConverter {\n    StudentConverter INSTANCE = Mappers.getMapper(StudentConverter.class);\n\n    @Mappings(@Mapping(source = \"name\",target = \"userName\"))\n    StudentDto vo2dto(StudentVo vo);\n\n    List<StudentDto> listVo2dto(List<StudentVo> vos);\n}<\/code><\/pre>\n\n\n\n
\u6d4b\u8bd5<\/strong><\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
public void test() {\n        List<StudentVo> voList = initVoList();\n        List<StudentDto> studentDtos = StudentConverter.INSTANCE.listVo2dto(voList);\n        System.out.println(studentDtos);\n    }<\/code><\/pre>\n\n\n\n
\u6d4b\u8bd5\u7ed3\u679c<\/strong><\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u5f53\u7136MapStruct<\/code>\u7b49\u529f\u80fd\u8fdc\u6bd4\u4f60\u60f3\u8c61\u7684\u8981\u591a\uff0c\u6709\u5174\u8da3\u7684\u53ef\u4ee5\u770b\u770b\u8fd9\u7bc7\u6587\u7ae0<\/p>\n\n\n\n
\u201c<\/p>
https:\/\/www.cnblogs.com\/homejim\/p\/11313128.html<\/p>
\u201d<\/p><\/blockquote>\n\n\n\n
\u6211\u4e3a\u4ec0\u4e48\u63a8\u8350\u4f7f\u7528MapStruct<\/code><\/h2>\n\n\n\n
\u5e02\u9762\u4e0a BeanUtils<\/code>\u5e95\u5c42\u662f\u4f7f\u7528\u53cd\u5c04\u7684\uff0c\u6211\u4eec\u77e5\u9053\u4f7f\u7528\u53cd\u5c04\u4f1a\u5f71\u54cd\u6027\u80fd\u3002\u800c\u4e14BeanUtils<\/code>\u9700\u8981\u7c7b\u578b\u548c\u540d\u79f0\u90fd\u4e00\u6837\u624d\u4f1a\u8fdb\u884c\u6620\u5c04\uff0c \u4f46\u5728\u5f88\u591a\u65f6\u5019\uff0c \u7531\u4e8e\u4e0d\u540c\u7684\u56e2\u961f\u4e4b\u95f4\u4f7f\u7528\u7684\u540d\u8bcd\u4e0d\u4e00\u6837\uff0c \u8fd8\u662f\u9700\u8981\u5f88\u591a\u7684\u624b\u52a8\u4f7f\u7528getter\/setter<\/code>\u3002<\/p>\n\n\n\n
\u4e8e\u662fMapStruct<\/code>\u8bde\u751f\u4e86\u3002<\/p>\n\n\n\n
MapSturct<\/code> \u662f\u4e00\u4e2a\u751f\u6210\u7c7b\u578b\u5b89\u5168\uff0c \u9ad8\u6027\u80fd\u4e14\u65e0\u4f9d\u8d56\u7684 JavaBean \u6620\u5c04\u4ee3\u7801\u7684\u6ce8\u89e3\u5904\u7406\u5668\uff08annotation processor\uff09\u3002<\/p>\n\n\n\n
\u5b83\u6709\u4e0b\u9762\u51e0\u4e2a\u7279\u70b9\uff1a<\/p>\n\n\n\n
\u201c<\/p>\n\n\n\n
  1. \u57fa\u4e8e\u6ce8\u89e3\u7684\u5904\u7406\u5668<\/li>
  2. \u53ef\u4ee5\u81ea\u5b9a\u4e49 JavaBean<\/code> \u4e4b\u95f4\u7684\u5c5e\u6027\u6620\u5c04<\/li>
  3. \u7c7b\u578b\u5b89\u5168\uff0c \u9ad8\u6027\u80fd\uff0c \u65e0\u4f9d\u8d56\u6027<\/li><\/ol>\n\n\n\n
    \u201d<\/p>\n\n\n\n
    \u7f16\u8bd1\u4e4b\u540e\u4f1a\u751f\u6210\u65b9\u6cd5\u5b9e\u73b0<\/p>\n\n\n\n
    \u5b9e\u73b0\u7684\u7c7b\u3001\u65b9\u6cd5\u5982\u4e0b<\/p>\n\n\n\n
    \"\"<\/div><\/figure>\n\n\n\n
    \u8be5\u5de5\u5177\u53ef\u4ee5\u5e2e\u6211\u4eec\u5b9e\u73b0 JavaBean<\/code> \u4e4b\u95f4\u7684\u8f6c\u6362\uff0c \u901a\u8fc7\u6ce8\u89e3\u7684\u65b9\u5f0f\u3002\u901a\u8fc7 MapStruct<\/code> \u6765\u751f\u6210\u7684\u4ee3\u7801\uff0c \u5176\u7c7b\u4f3c\u4e8e\u4eba\u624b\u5199\u3002\u901f\u5ea6\u4e0a\u53ef\u4ee5\u5f97\u5230\u4fdd\u8bc1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u80cc\u666f \u6211\u4eec\u6709\u8fd9\u6837\u4e00\u4e2a\u573a\u666f\uff0c\u6709\u4e00\u4e2aStudentDto\u7c7b\uff0c\u8fd8\u6709\u4e00\u4e2aStudentVo\u7c7b \u95ee\u9898 \u201c \u5982\u679c\u6211\u4eec\u77e5\u9053S […]<\/p>\n","protected":false},"author":1,"featured_media":873,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,8],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.frost-s.com\/index.php\/wp-json\/wp\/v2\/posts\/863"}],"collection":[{"href":"https:\/\/blog.frost-s.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.frost-s.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.frost-s.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.frost-s.com\/index.php\/wp-json\/wp\/v2\/comments?post=863"}],"version-history":[{"count":2,"href":"https:\/\/blog.frost-s.com\/index.php\/wp-json\/wp\/v2\/posts\/863\/revisions"}],"predecessor-version":[{"id":874,"href":"https:\/\/blog.frost-s.com\/index.php\/wp-json\/wp\/v2\/posts\/863\/revisions\/874"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.frost-s.com\/index.php\/wp-json\/wp\/v2\/media\/873"}],"wp:attachment":[{"href":"https:\/\/blog.frost-s.com\/index.php\/wp-json\/wp\/v2\/media?parent=863"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.frost-s.com\/index.php\/wp-json\/wp\/v2\/categories?post=863"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.frost-s.com\/index.php\/wp-json\/wp\/v2\/tags?post=863"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}