Spring Boot无法识别我的Mapstruct映射器。

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英文:

Spring Boot Can't See My Mapstruct Mapper

问题

I defined the mapper but Spring Boot can't detect it. I couldn't find the problem for days. Please help. Tried on IDEA and Netbeans. Tried to add some annotations on main class from this thread.

> Description:
>
> Parameter 1 of constructor in
> com.example.springmysqlelastic.service.impl.UserService required a
> bean of type 'com.example.springmysqlelastic.mapper.UserMapper' that
> could not be found.
>
>
> Action:
>
> Consider defining a bean of type
> 'com.example.springmysqlelastic.mapper.UserMapper' in your
> configuration.

UserMapper.java

  1. package com.example.springmysqlelastic.mapper;
  3. import com.example.springmysqlelastic.model.Food;
  4. import com.example.springmysqlelastic.model.FoodModel;
  5. import com.example.springmysqlelastic.model.User;
  6. import com.example.springmysqlelastic.model.UserModel;
  7. import com.example.springmysqlelastic.model.dto.FoodDTO;
  8. import com.example.springmysqlelastic.model.dto.UserDTO;
  9. import org.mapstruct.Mapper;
  10. import org.springframework.stereotype.Component;
  12. import java.util.List;
  14. //@Component
  15. @Mapper(componentModel = "spring")
  16. public interface UserMapper {
  18.     UserDTO toUserDTO(User user);
  20.     List<UserDTO> toUserDtos(List<User> users);
  22.     User toUser(UserDTO userDTO);
  24.     List<User> toUsers(List<UserDTO> userDTOS);
  26.     UserModel toUserModel(User user);
  27. /*
  28.     FoodDTO toFoodDTO(Food food);
  30.     List<FoodDTO> toFoodDtos(List<Food> foods);
  32.     Food toFood(FoodDTO foodDTO);
  34.     List<Food> toFoods(List<FoodDTO> foodDTOS);
  36.     FoodModel toFoodModel(Food food);*/
  37. }

UserService.java

  1. package com.example.springmysqlelastic.service.impl;
  3. import com.example.springmysqlelastic.mapper.UserMapper;
  4. import com.example.springmysqlelastic.model.User;
  5. import com.example.springmysqlelastic.model.dto.UserDTO;
  6. import com.example.springmysqlelastic.repo.IUserDAO;
  7. import com.example.springmysqlelastic.service.IUserService;
  8. import org.springframework.beans.factory.annotation.Autowired;
  9. import org.springframework.stereotype.Component;
  10. import org.springframework.stereotype.Service;
  12. import java.util.List;
  14. @Service
  15. public class UserService implements IUserService {
  17.     private IUserDAO userDAO;
  18.     private UserMapper userMapper;
  20.     @Autowired
  21.     public UserService(IUserDAO userDAO, UserMapper userMapper) {
  22.         this.userDAO = userDAO;
  23.         this.userMapper = userMapper;
  24.     }
  25.     
  26.     @Override
  27.     public UserDTO save(UserDTO userDTO) {
  28.         User user = this.userDAO.save(this.userMapper.toUser(userDTO));
  29.         return this.userMapper.toUserDTO(user);
  30.     }
  32.     @Override
  33.     public UserDTO findById(Long id) {
  34.         return this.userMapper.toUserDTO(this.userDAO.findById(id).orElse(null));
  35.     }
  37.     @Override
  38.     public List<UserDTO> findAll() {
  39.         return this.userMapper.toUserDtos(this.userDAO.findAll());
  40.     }
  41. }

UserController.java

  1. package com.example.springmysqlelastic.rest;
  3. import com.example.springmysqlelastic.model.dto.UserDTO;
  4. import com.example.springmysqlelastic.service.IUserService;
  5. import com.example.springmysqlelastic.utils.PathResources;
  6. import org.springframework.beans.factory.annotation.Autowired;
  7. import org.springframework.http.HttpStatus;
  8. import org.springframework.http.ResponseEntity;
  9. import org.springframework.web.bind.annotation.GetMapping;
  10. import org.springframework.web.bind.annotation.PathVariable;
  11. import org.springframework.web.bind.annotation.PostMapping;
  12. import org.springframework.web.bind.annotation.RequestBody;
  13. import org.springframework.web.bind.annotation.RequestMapping;
  14. import org.springframework.web.bind.annotation.RestController;
  16. import java.util.List;
  18. @RestController
  19. @RequestMapping("/user") //PathResources.USER
  20. public class UserController {
  22.     private final IUserService userService;
  24.     @Autowired
  25.     public UserController(IUserService userService) {
  26.         this.userService = userService;
  27.     }
  29.     @PostMapping("/save") //PathResources.SAVE
  30.     public ResponseEntity<UserDTO> saveUser(@RequestBody UserDTO userDTO) {
  31.         return new ResponseEntity<>(this.userService.save(userDTO), HttpStatus.OK);
  32.     }
  34.     @GetMapping("/find-one/{id}") //PathResources.FIND_ONE + "/{" + PathResources.ID + "}"
  35.     public ResponseEntity<UserDTO> findById(@PathVariable Long id) {
  36.         return new ResponseEntity<>(this.userService.findById(id), HttpStatus.OK);
  37.     }
  39.     @GetMapping("/find-all") //PathResources.FIND_ALL
  40.     public ResponseEntity<List<UserDTO>> findById() {
  41.         return new ResponseEntity<>(this.userService.findAll(), HttpStatus.OK);
  42.     }
  43. }

pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  4.     <modelVersion>4.0.0</modelVersion>
  5.     <parent>
  6.         <groupId>org.springframework.boot</groupId>
  7.         <artifactId>spring-boot-starter-parent</artifactId>
  8.         <version>2.3.1.RELEASE</version>
  9.         <relativePath/> <!-- lookup parent from repository -->
  10.     </parent>
  11.     <groupId>com.example</groupId>
  12.     <artifactId>spring-mysql-elastic</artifactId>
  13.     <packaging>jar</packaging>
  14.     <version>0.0.1-SNAPSHOT</version>
  15.     <name>spring-mysql-elastic</name>
  16.     <description>Demo project for Mysql and ElasticSearch Synchronization in Spring</description>
  18.     <properties>
  19.         <java.version>1.8</java.version>
  20.         <mapstruct.version>1.4.0.Beta3</mapstruct.version>
  21.         <org.json.version>20190722</org.json.version>
  22.         <swagger.version>2.9.2</swagger.version>
  23.     </properties>
  25.     <dependencies>
  26.         <dependency>
  27.             <groupId>org.springframework.boot</groupId>
  28.             <artifactId>spring-boot-starter-data-jpa</artifactId>
  29.         </dependency>
  30.         <dependency>
  31.             <groupId>org.springframework.boot</groupId>
  32.             <artifactId>spring-boot-starter-web</artifactId>
  33.         </dependency>
  34.         <dependency>
  35.             <groupId>org.springframework.boot</groupId>
  36.             <artifactId>spring-boot-starter-tomcat</artifactId>
  37.         </dependency>
  38.         <dependency>
  39.             <groupId>org.springframework.boot</groupId>
  40.             <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
  41.         </dependency>
  42.         <dependency>
  43.             <groupId>org.springframework.boot</groupId>
  44.             <artifactId>spring-boot-starter-thymeleaf</artifactId>
  45.         </dependency>
  46.         <dependency>
  47.             <groupId>mysql</groupId>
  48.             <artifactId>mysql-connector-java</artifactId>
  49.         </dependency>
  51.         <dependency>
  52.             <groupId>org.springframework.boot</groupId>
  53.             <artifactId>spring-boot-starter-test</artifactId>
  54.             <scope>test</scope>
  55.             <exclusions>
  56.                 <
  58. <details>
  59. <summary>英文:</summary>
  61. I defined the mapper but Spring Boot can&#39;t detect it. I couldn&#39;t find the problem for days. Please help. Tried on IDEA and Netbeans. Tried to add some annotations on main class from [this thread][1].
  63. &gt; *Description:*
  64. &gt; 
  65. &gt; Parameter 1 of constructor in
  66. &gt; com.example.springmysqlelastic.service.impl.UserService required a
  67. &gt; bean of type &#39;com.example.springmysqlelastic.mapper.UserMapper&#39; that
  68. &gt; could not be found.
  69. &gt; 
  70. &gt; 
  71. &gt; *Action:*
  72. &gt; 
  73. &gt; **Consider defining a bean of type
  74. &gt; &#39;com.example.springmysqlelastic.mapper.UserMapper&#39; in your
  75. &gt; configuration.**
  77. **UserMapper.java**
  79.     package com.example.springmysqlelastic.mapper;
  80.     
  81.     import com.example.springmysqlelastic.model.Food;
  82.     import com.example.springmysqlelastic.model.FoodModel;
  83.     import com.example.springmysqlelastic.model.User;
  84.     import com.example.springmysqlelastic.model.UserModel;
  85.     import com.example.springmysqlelastic.model.dto.FoodDTO;
  86.     import com.example.springmysqlelastic.model.dto.UserDTO;
  87.     import org.mapstruct.Mapper;
  88.     import org.springframework.stereotype.Component;
  89.     
  90.     import java.util.List;
  91.     //@Component
  92.     @Mapper(componentModel = &quot;spring&quot;)
  93.     public interface UserMapper {
  94.     
  95.         UserDTO toUserDTO(User user);
  96.     
  97.         List&lt;UserDTO&gt; toUserDtos(List&lt;User&gt; users);
  98.     
  99.         User toUser(UserDTO userDTO);
  100.     
  101.         List&lt;User&gt; toUsers(List&lt;UserDTO&gt; userDTOS);
  102.     
  103.         UserModel toUserModel(User user);
  104.     /*
  105.         FoodDTO toFoodDTO(Food food);
  106.     
  107.         List&lt;FoodDTO&gt; toFoodDtos(List&lt;Food&gt; foods);
  108.     
  109.         Food toFood(FoodDTO foodDTO);
  110.     
  111.         List&lt;Food&gt; toFoods(List&lt;FoodDTO&gt; foodDTOS);
  112.     
  113.         FoodModel toFoodModel(Food food);*/
  114.     }
  116. **UserService**
  118.     package com.example.springmysqlelastic.service.impl;
  119.     
  120.     import com.example.springmysqlelastic.mapper.UserMapper;
  121.     import com.example.springmysqlelastic.model.User;
  122.     import com.example.springmysqlelastic.model.dto.UserDTO;
  123.     import com.example.springmysqlelastic.repo.IUserDAO;
  124.     import com.example.springmysqlelastic.service.IUserService;
  125.     import org.springframework.beans.factory.annotation.Autowired;
  126.     import org.springframework.stereotype.Component;
  127.     import org.springframework.stereotype.Service;
  128.     
  129.     import java.util.List;
  130.     
  131.     @Service
  132.     public class UserService implements IUserService {
  133.     
  134.         private IUserDAO userDAO;
  135.         private UserMapper userMapper;
  136.     
  137.         @Autowired
  138.         public UserService(IUserDAO userDAO, UserMapper userMapper) {
  139.             this.userDAO = userDAO;
  140.             this.userMapper = userMapper;
  141.         }
  142.         
  143.         @Override
  144.         public UserDTO save(UserDTO userDTO) {
  145.             User user = this.userDAO.save(this.userMapper.toUser(userDTO));
  146.             return this.userMapper.toUserDTO(user);
  147.         }
  148.     
  149.         @Override
  150.         public UserDTO findById(Long id) {
  151.             return this.userMapper.toUserDTO(this.userDAO.findById(id).orElse(null));
  152.         }
  153.     
  154.         @Override
  155.         public List&lt;UserDTO&gt; findAll() {
  156.             return this.userMapper.toUserDtos(this.userDAO.findAll());
  157.         }
  158.     }
  160. **UserController.java**
  162.     package com.example.springmysqlelastic.rest;
  163.     
  164.     import com.example.springmysqlelastic.model.dto.UserDTO;
  165.     import com.example.springmysqlelastic.service.IUserService;
  166.     import com.example.springmysqlelastic.utils.PathResources;
  167.     import org.springframework.beans.factory.annotation.Autowired;
  168.     import org.springframework.http.HttpStatus;
  169.     import org.springframework.http.ResponseEntity;
  170.     import org.springframework.web.bind.annotation.GetMapping;
  171.     import org.springframework.web.bind.annotation.PathVariable;
  172.     import org.springframework.web.bind.annotation.PostMapping;
  173.     import org.springframework.web.bind.annotation.RequestBody;
  174.     import org.springframework.web.bind.annotation.RequestMapping;
  175.     import org.springframework.web.bind.annotation.RestController;
  176.     
  177.     import java.util.List;
  178.     
  179.     @RestController
  180.     @RequestMapping(&quot;/user&quot;) //PathResources.USER
  181.     public class UserController {
  182.     
  183.         private final IUserService userService;
  184.     
  185.         @Autowired
  186.         public UserController(IUserService userService) {
  187.             this.userService = userService;
  188.         }
  189.     
  190.         @PostMapping(&quot;/save&quot;) //PathResources.SAVE
  191.         public ResponseEntity&lt;UserDTO&gt; saveUser(@RequestBody UserDTO userDTO) {
  192.             return new ResponseEntity&lt;&gt;(this.userService.save(userDTO), HttpStatus.OK);
  193.         }
  194.     
  195.         @GetMapping(&quot;/find-one/{id}&quot;) //PathResources.FIND_ONE + &quot;/{&quot; + PathResources.ID + &quot;}&quot;
  196.         public ResponseEntity&lt;UserDTO&gt; findById(@PathVariable Long id) {
  197.             return new ResponseEntity&lt;&gt;(this.userService.findById(id), HttpStatus.OK);
  198.         }
  199.     
  200.         @GetMapping(&quot;/find-all&quot;) //PathResources.FIND_ALL
  201.         public ResponseEntity&lt;List&lt;UserDTO&gt;&gt; findById() {
  202.             return new ResponseEntity&lt;&gt;(this.userService.findAll(), HttpStatus.OK);
  203.         }
  204.     }
  206. **pom.xml**
  208.     &lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
  209.     &lt;project xmlns=&quot;http://maven.apache.org/POM/4.0.0&quot; xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;
  210.              xsi:schemaLocation=&quot;http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd&quot;&gt;
  211.         &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
  212.         &lt;parent&gt;
  213.             &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  214.             &lt;artifactId&gt;spring-boot-starter-parent&lt;/artifactId&gt;
  215.             &lt;version&gt;2.3.1.RELEASE&lt;/version&gt;
  216.             &lt;relativePath/&gt; &lt;!-- lookup parent from repository --&gt;
  217.         &lt;/parent&gt;
  218.         &lt;groupId&gt;com.example&lt;/groupId&gt;
  219.         &lt;artifactId&gt;spring-mysql-elastic&lt;/artifactId&gt;
  220.         &lt;packaging&gt;jar&lt;/packaging&gt;
  221.         &lt;version&gt;0.0.1-SNAPSHOT&lt;/version&gt;
  222.         &lt;name&gt;spring-mysql-elastic&lt;/name&gt;
  223.         &lt;description&gt;Demo project for Mysql and ElasticSearch Synchronization in Spring&lt;/description&gt;
  224.     
  225.         &lt;properties&gt;
  226.             &lt;java.version&gt;1.8&lt;/java.version&gt;
  227.             &lt;mapstruct.version&gt;1.4.0.Beta3&lt;/mapstruct.version&gt;
  228.             &lt;org.json.version&gt;20190722&lt;/org.json.version&gt;
  229.             &lt;swagger.version&gt;2.9.2&lt;/swagger.version&gt;
  230.         &lt;/properties&gt;
  231.     
  232.         &lt;dependencies&gt;
  233.             &lt;dependency&gt;
  234.                 &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  235.                 &lt;artifactId&gt;spring-boot-starter-data-jpa&lt;/artifactId&gt;
  236.             &lt;/dependency&gt;
  237.             &lt;dependency&gt;
  238.                 &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  239.                 &lt;artifactId&gt;spring-boot-starter-web&lt;/artifactId&gt;
  240.             &lt;/dependency&gt;
  241.             &lt;dependency&gt;
  242.                 &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  243.                 &lt;artifactId&gt;spring-boot-starter-tomcat&lt;/artifactId&gt;
  244.             &lt;/dependency&gt;
  245.             &lt;dependency&gt;
  246.                 &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  247.                 &lt;artifactId&gt;spring-boot-starter-data-elasticsearch&lt;/artifactId&gt;
  248.             &lt;/dependency&gt;
  249.                     &lt;dependency&gt;
  250.                 &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  251.                 &lt;artifactId&gt;spring-boot-starter-thymeleaf&lt;/artifactId&gt;
  252.             &lt;/dependency&gt;
  253.             &lt;dependency&gt;
  254.                 &lt;groupId&gt;mysql&lt;/groupId&gt;
  255.                 &lt;artifactId&gt;mysql-connector-java&lt;/artifactId&gt;
  256.             &lt;/dependency&gt;
  257.     
  258.             &lt;dependency&gt;
  259.                 &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  260.                 &lt;artifactId&gt;spring-boot-starter-test&lt;/artifactId&gt;
  261.                 &lt;scope&gt;test&lt;/scope&gt;
  262.                 &lt;exclusions&gt;
  263.                     &lt;exclusion&gt;
  264.                         &lt;groupId&gt;org.junit.vintage&lt;/groupId&gt;
  265.                         &lt;artifactId&gt;junit-vintage-engine&lt;/artifactId&gt;
  266.                     &lt;/exclusion&gt;
  267.                 &lt;/exclusions&gt;
  268.             &lt;/dependency&gt;
  269.             &lt;dependency&gt;
  270.                 &lt;groupId&gt;org.mapstruct&lt;/groupId&gt;
  271.                 &lt;artifactId&gt;mapstruct-jdk8&lt;/artifactId&gt;
  272.                 &lt;version&gt;${mapstruct.version}&lt;/version&gt;
  273.             &lt;/dependency&gt;
  274.     
  275.             &lt;!-- https://mvnrepository.com/artifact/org.json/json --&gt;
  276.             &lt;dependency&gt;
  277.                 &lt;groupId&gt;org.json&lt;/groupId&gt;
  278.                 &lt;artifactId&gt;json&lt;/artifactId&gt;
  279.                 &lt;version&gt;${org.json.version}&lt;/version&gt;
  280.             &lt;/dependency&gt;
  281.     &lt;!-- https://mvnrepository.com/artifact/com.alibaba/fastjson 
  282.     &lt;dependency&gt;
  283.         &lt;groupId&gt;com.alibaba&lt;/groupId&gt;
  284.         &lt;artifactId&gt;fastjson&lt;/artifactId&gt;
  285.         &lt;version&gt;1.2.73&lt;/version&gt;
  286.     &lt;/dependency&gt;--&gt;
  287.     
  288.             &lt;dependency&gt;
  289.                 &lt;groupId&gt;io.springfox&lt;/groupId&gt;
  290.                 &lt;artifactId&gt;springfox-swagger2&lt;/artifactId&gt;
  291.                 &lt;version&gt;${swagger.version}&lt;/version&gt;
  292.             &lt;/dependency&gt;
  293.             &lt;dependency&gt;
  294.                 &lt;groupId&gt;io.springfox&lt;/groupId&gt;
  295.                 &lt;artifactId&gt;springfox-swagger-ui&lt;/artifactId&gt;
  296.                 &lt;version&gt;${swagger.version}&lt;/version&gt;
  297.             &lt;/dependency&gt;
  298.             &lt;dependency&gt;
  299.                 &lt;groupId&gt;org.projectlombok&lt;/groupId&gt;
  300.                 &lt;artifactId&gt;lombok&lt;/artifactId&gt;
  301.                 &lt;!--&lt;version&gt;1.18.12&lt;/version&gt;--&gt;
  302.                 &lt;type&gt;jar&lt;/type&gt;
  303.             &lt;/dependency&gt;
  304.     &lt;!-- https://mvnrepository.com/artifact/com.google.code.gson/gson --&gt;
  305.     &lt;dependency&gt;
  306.         &lt;groupId&gt;com.google.code.gson&lt;/groupId&gt;
  307.         &lt;artifactId&gt;gson&lt;/artifactId&gt;
  308.         &lt;version&gt;2.8.6&lt;/version&gt;
  309.     &lt;/dependency&gt;
  310.             &lt;dependency&gt;
  311.                 &lt;groupId&gt;jakarta.validation&lt;/groupId&gt;
  312.                 &lt;artifactId&gt;jakarta.validation-api&lt;/artifactId&gt;
  313.                 &lt;version&gt;2.0.2&lt;/version&gt;
  314.                 &lt;type&gt;jar&lt;/type&gt;
  315.             &lt;/dependency&gt;
  316.         &lt;/dependencies&gt;
  317.     
  318.         &lt;build&gt;
  319.             &lt;plugins&gt;
  320.                 &lt;plugin&gt;
  321.                     &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  322.                     &lt;artifactId&gt;spring-boot-maven-plugin&lt;/artifactId&gt;
  323.                     &lt;executions&gt;
  324.                         &lt;execution&gt;
  325.                             &lt;goals&gt;
  326.                                 &lt;goal&gt;repackage&lt;/goal&gt;
  327.                             &lt;/goals&gt;
  328.                             &lt;configuration&gt;
  329.                                 &lt;mainClass&gt;com.example.springmysqlelastic.SpringMysqlElasticApplication&lt;/mainClass&gt;
  330.                             &lt;/configuration&gt;
  331.                         &lt;/execution&gt;
  332.                     &lt;/executions&gt;
  333.                 &lt;/plugin&gt;
  334.                 &lt;plugin&gt;
  335.                     &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
  336.                     &lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt;
  337.                     &lt;configuration&gt;
  338.                         &lt;source&gt;${java.version}&lt;/source&gt;
  339.                         &lt;target&gt;${java.version}&lt;/target&gt;
  340.                         &lt;annotationProcessorPaths&gt;
  341.                             &lt;path&gt;
  342.                                 &lt;groupId&gt;org.mapstruct&lt;/groupId&gt;
  343.                                 &lt;artifactId&gt;mapstruct-processor&lt;/artifactId&gt;
  344.                                 &lt;version&gt;${mapstruct.version}&lt;/version&gt;
  345.                             &lt;/path&gt;
  346.                         &lt;/annotationProcessorPaths&gt;
  347.                     &lt;/configuration&gt;
  348.                 &lt;/plugin&gt;
  349.             &lt;/plugins&gt;
  350.         &lt;/build&gt;
  351.     
  352.     &lt;/project&gt;
  354. **Main class**
  356.     package com.example.springmysqlelastic;
  357.     
  358.     import org.springframework.boot.SpringApplication;
  359.     import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
  360.     import org.springframework.boot.autoconfigure.SpringBootApplication;
  361.     import org.springframework.boot.autoconfigure.domain.EntityScan;
  362.     import org.springframework.context.annotation.ComponentScan;
  363.     import org.springframework.data.elasticsearch.repository.config.EnableElasticsearchRepositories;
  364.     import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
  365.     import org.springframework.scheduling.annotation.EnableScheduling;
  366.     
  367.     @SpringBootApplication
  368.     //@SpringBootApplication(scanBasePackages={&quot;com.example.springmysqlelastic&quot;})
  369.     @EnableElasticsearchRepositories(&quot;com.example.springmysqlelastic.repo.elastic&quot;)
  370.     @EnableScheduling
  371.     //@ComponentScan(scanBasePackages = {&quot;com.example.springmysqlelastic&quot;})
  372.     //@EntityScan(&quot;com.example.springmysqlelastic.model&quot;)
  373.     //@EnableJpaRepositories(&quot;com.example.springmysqlelastic&quot;)
  374.     //@ComponentScan(basePackages = {&quot;com.example.springmysqlelastic&quot;})
  375.     //@EnableAutoConfiguration
  376.     
  377.     public class SpringMysqlElasticApplication {
  378.     
  379.         public static void main(String[] args) {
  380.     
  381.             SpringApplication.run(SpringMysqlElasticApplication.class, args);
  382.         }
  383.     
  384.     }
  388.   [1]: https://stackoverflow.com/questions/40384056/consider-defining-a-bean-of-type-package-in-your-configuration-spring-boot
  390. </details>
  393. # 答案1
  394. **得分**: 1
  396. 在[文档][1]中提到，除了主要的依赖项外，您还需要添加annotationProcessor。
  398. Gradle示例：
  400. ```gradle
  401. dependencies {
  402.     implementation 'org.mapstruct:mapstruct:1.4.2.Final'
  403.     annotationProcessor 'org.mapstruct:mapstruct-processor:1.4.2.Final'
  404. }
英文:

In the documentation says that in addition to the main dependency, you need to add annotationProcessor

Example for Gradle:

  1. dependencies {
  2. implementation &#39;org.mapstruct:mapstruct:1.4.2.Final&#39;
  3. annotationProcessor &#39;org.mapstruct:mapstruct-processor:1.4.2.Final&#39;
  4. }

答案2

得分: 0

我认为这是与Swagger与Mapstruct库冲突的问题。

我修改了您的POM文件如下所示，并且对我起作用。这里有一些关于它的文档：https://www.programmersought.com/article/6208308983/

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3.   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  4.   <modelVersion>4.0.0</modelVersion>
  5.   <parent>
  6.     <groupId>org.springframework.boot</groupId>
  7.     <artifactId>spring-boot-starter-parent</artifactId>
  8.     <version>2.3.1.RELEASE</version>
  9.     <relativePath/> <!-- lookup parent from repository -->
  10.   </parent>
  11.   <groupId>com.example</groupId>
  12.   <artifactId>spring-mysql-elastic</artifactId>
  13.   <packaging>jar</packaging>
  14.   <version>0.0.1-SNAPSHOT</version>
  15.   <name>spring-mysql-elastic</name>
  16.   <description>Demo project for Mysql and ElasticSearch Synchronization in Spring</description>
  18.   <properties>
  19.     <java.version>1.8</java.version>
  20.     <mapstruct.version>1.4.0.Beta3</mapstruct.version>
  21.     <org.json.version>20190722</org.json.version>
  22.     <swagger.version>2.9.2</swagger.version>
  23.   </properties>
  25.   <dependencies>
  26.     <!-- 其他依赖 -->
  27.     <!-- 修改Swagger依赖如下 -->
  28.     <dependency>
  29.       <groupId>io.springfox</groupId>
  30.       <artifactId>springfox-swagger2</artifactId>
  31.       <version>${swagger.version}</version>
  32.       <exclusions>
  33.         <exclusion>
  34.           <groupId>org.mapstruct</groupId>
  35.           <artifactId>mapstruct</artifactId>
  36.         </exclusion>
  37.       </exclusions>
  38.     </dependency>
  39.     <dependency>
  40.       <groupId>io.springfox</groupId>
  41.       <artifactId>springfox-swagger-ui</artifactId>
  42.       <version>${swagger.version}</version>
  43.       <exclusions>
  44.         <exclusion>
  45.           <groupId>org.mapstruct</groupId>
  46.           <artifactId>mapstruct</artifactId>
  47.         </exclusion>
  48.       </exclusions>
  49.     </dependency>
  50.     <!-- 其他依赖 -->
  51.   </dependencies>
  53.   <!-- 其他配置 -->
  55. </project>

您可以检查它是否适用于您。

更新
在代码生成步骤之后，它生成了以下内容：

  1. package com.example.springmysqlelastic.mapper;
  3. import java.util.ArrayList;
  4. import java.util.List;
  5. import javax.annotation.Generated;
  6. import org.springframework.stereotype.Component;
  8. @Generated(
  9.     value = "org.mapstruct.ap.MappingProcessor",
  10.     date = "2020-08-11T16:40:57+0530",
  11.     comments = "version: 1.4.0.Beta3, compiler: javac, environment: Java 1.8.0_265 (Private Build)"
  12. )
  13. @Component
  14. public class UserMapperImpl implements UserMapper {
  16.     @Override
  17.     public UserDTO toUserDTO(User user) {
  18.         if ( user == null ) {
  19.             return null;
  20.         }
  22.         UserDTO userDTO = new UserDTO();
  24.         return userDTO;
  25.     }
  27.     @Override
  28.     public List<UserDTO> toUserDtos(List<User> users) {
  29.         if ( users == null ) {
  30.             return null;
  31.         }
  33.         List<UserDTO> list = new ArrayList<UserDTO>( users.size() );
  34.         for ( User user : users ) {
  35.             list.add( toUserDTO( user ) );
  36.         }
  38.         return list;
  39.     }
  41.     @Override
  42.     public User toUser(UserDTO userDTO) {
  43.         if ( userDTO == null ) {
  44.             return null;
  45.         }
  47.         User user = new User();
  49.         return user;
  50.     }
  52.     @Override
  53.     public List<User> toUsers(List<UserDTO> userDTOS) {
  54.         if ( userDTOS == null ) {
  55.             return null;
  56.         }
  58.         List<User> list = new ArrayList<User>( userDTOS.size() );
  59.         for ( UserDTO userDTO : userDTOS ) {
  60.             list.add( toUser( userDTO ) );
  61.         }
  63.         return list;
  64.     }
  65. }

希望这对您有所帮助。

英文:

I think its an issue with swagger conflicting with the mapstruct library..

I modified your POM like below and it started working for me. They have some documentation here that talks about it. https://www.programmersought.com/article/6208308983/

  1. &lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
  2. &lt;project xmlns=&quot;http://maven.apache.org/POM/4.0.0&quot; xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;
  3. xsi:schemaLocation=&quot;http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd&quot;&gt;
  4. &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
  5. &lt;parent&gt;
  6. &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  7. &lt;artifactId&gt;spring-boot-starter-parent&lt;/artifactId&gt;
  8. &lt;version&gt;2.3.1.RELEASE&lt;/version&gt;
  9. &lt;relativePath/&gt; &lt;!-- lookup parent from repository --&gt;
  10. &lt;/parent&gt;
  11. &lt;groupId&gt;com.example&lt;/groupId&gt;
  12. &lt;artifactId&gt;spring-mysql-elastic&lt;/artifactId&gt;
  13. &lt;packaging&gt;jar&lt;/packaging&gt;
  14. &lt;version&gt;0.0.1-SNAPSHOT&lt;/version&gt;
  15. &lt;name&gt;spring-mysql-elastic&lt;/name&gt;
  16. &lt;description&gt;Demo project for Mysql and ElasticSearch Synchronization in Spring&lt;/description&gt;
  17. &lt;properties&gt;
  18. &lt;java.version&gt;1.8&lt;/java.version&gt;
  19. &lt;mapstruct.version&gt;1.4.0.Beta3&lt;/mapstruct.version&gt;
  20. &lt;org.json.version&gt;20190722&lt;/org.json.version&gt;
  21. &lt;swagger.version&gt;2.9.2&lt;/swagger.version&gt;
  22. &lt;/properties&gt;
  23. &lt;dependencies&gt;
  24. &lt;dependency&gt;
  25. &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  26. &lt;artifactId&gt;spring-boot-starter-web&lt;/artifactId&gt;
  27. &lt;/dependency&gt;
  28. &lt;dependency&gt;
  29. &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  30. &lt;artifactId&gt;spring-boot-starter-tomcat&lt;/artifactId&gt;
  31. &lt;/dependency&gt;
  32. &lt;dependency&gt;
  33. &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  34. &lt;artifactId&gt;spring-boot-starter-data-elasticsearch&lt;/artifactId&gt;
  35. &lt;/dependency&gt;
  36. &lt;dependency&gt;
  37. &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  38. &lt;artifactId&gt;spring-boot-starter-thymeleaf&lt;/artifactId&gt;
  39. &lt;/dependency&gt;
  40. &lt;dependency&gt;
  41. &lt;groupId&gt;mysql&lt;/groupId&gt;
  42. &lt;artifactId&gt;mysql-connector-java&lt;/artifactId&gt;
  43. &lt;/dependency&gt;
  44. &lt;dependency&gt;
  45. &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  46. &lt;artifactId&gt;spring-boot-starter-test&lt;/artifactId&gt;
  47. &lt;scope&gt;test&lt;/scope&gt;
  48. &lt;exclusions&gt;
  49. &lt;exclusion&gt;
  50. &lt;groupId&gt;org.junit.vintage&lt;/groupId&gt;
  51. &lt;artifactId&gt;junit-vintage-engine&lt;/artifactId&gt;
  52. &lt;/exclusion&gt;
  53. &lt;/exclusions&gt;
  54. &lt;/dependency&gt;
  55. &lt;dependency&gt;
  56. &lt;groupId&gt;org.mapstruct&lt;/groupId&gt;
  57. &lt;artifactId&gt;mapstruct-jdk8&lt;/artifactId&gt;
  58. &lt;version&gt;${mapstruct.version}&lt;/version&gt;
  59. &lt;/dependency&gt;
  60. &lt;!-- https://mvnrepository.com/artifact/org.json/json --&gt;
  61. &lt;dependency&gt;
  62. &lt;groupId&gt;org.json&lt;/groupId&gt;
  63. &lt;artifactId&gt;json&lt;/artifactId&gt;
  64. &lt;version&gt;${org.json.version}&lt;/version&gt;
  65. &lt;/dependency&gt;
  66. &lt;!-- https://mvnrepository.com/artifact/com.alibaba/fastjson
  67. &lt;dependency&gt;
  68. &lt;groupId&gt;com.alibaba&lt;/groupId&gt;
  69. &lt;artifactId&gt;fastjson&lt;/artifactId&gt;
  70. &lt;version&gt;1.2.73&lt;/version&gt;
  71. &lt;/dependency&gt;--&gt;
  72. &lt;dependency&gt;
  73. &lt;groupId&gt;io.springfox&lt;/groupId&gt;
  74. &lt;artifactId&gt;springfox-swagger2&lt;/artifactId&gt;
  75. &lt;version&gt;${swagger.version}&lt;/version&gt;
  76. &lt;exclusions&gt;
  77. &lt;exclusion&gt;
  78. &lt;groupId&gt;org.mapstruct&lt;/groupId&gt;
  79. &lt;artifactId&gt;mapstruct&lt;/artifactId&gt;
  80. &lt;/exclusion&gt;
  81. &lt;/exclusions&gt;
  82. &lt;/dependency&gt;
  83. &lt;dependency&gt;
  84. &lt;groupId&gt;io.springfox&lt;/groupId&gt;
  85. &lt;artifactId&gt;springfox-swagger-ui&lt;/artifactId&gt;
  86. &lt;version&gt;${swagger.version}&lt;/version&gt;
  87. &lt;exclusions&gt;
  88. &lt;exclusion&gt;
  89. &lt;groupId&gt;org.mapstruct&lt;/groupId&gt;
  90. &lt;artifactId&gt;mapstruct&lt;/artifactId&gt;
  91. &lt;/exclusion&gt;
  92. &lt;/exclusions&gt;
  93. &lt;/dependency&gt;
  94. &lt;dependency&gt;
  95. &lt;groupId&gt;org.projectlombok&lt;/groupId&gt;
  96. &lt;artifactId&gt;lombok&lt;/artifactId&gt;
  97. &lt;!--&lt;version&gt;1.18.12&lt;/version&gt;--&gt;
  98. &lt;type&gt;jar&lt;/type&gt;
  99. &lt;/dependency&gt;
  100. &lt;!-- https://mvnrepository.com/artifact/com.google.code.gson/gson --&gt;
  101. &lt;dependency&gt;
  102. &lt;groupId&gt;com.google.code.gson&lt;/groupId&gt;
  103. &lt;artifactId&gt;gson&lt;/artifactId&gt;
  104. &lt;version&gt;2.8.6&lt;/version&gt;
  105. &lt;/dependency&gt;
  106. &lt;dependency&gt;
  107. &lt;groupId&gt;jakarta.validation&lt;/groupId&gt;
  108. &lt;artifactId&gt;jakarta.validation-api&lt;/artifactId&gt;
  109. &lt;version&gt;2.0.2&lt;/version&gt;
  110. &lt;type&gt;jar&lt;/type&gt;
  111. &lt;/dependency&gt;
  112. &lt;dependency&gt;
  113. &lt;groupId&gt;org.mapstruct&lt;/groupId&gt;
  114. &lt;artifactId&gt;mapstruct&lt;/artifactId&gt;
  115. &lt;version&gt;1.4.0.Beta3&lt;/version&gt;
  116. &lt;/dependency&gt;
  117. &lt;/dependencies&gt;
  118. &lt;build&gt;
  119. &lt;plugins&gt;
  120. &lt;plugin&gt;
  121. &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
  122. &lt;artifactId&gt;spring-boot-maven-plugin&lt;/artifactId&gt;
  123. &lt;executions&gt;
  124. &lt;execution&gt;
  125. &lt;goals&gt;
  126. &lt;goal&gt;repackage&lt;/goal&gt;
  127. &lt;/goals&gt;
  128. &lt;configuration&gt;
  129. &lt;mainClass&gt;com.example.springmysqlelastic.SpringMysqlElasticApplication&lt;/mainClass&gt;
  130. &lt;/configuration&gt;
  131. &lt;/execution&gt;
  132. &lt;/executions&gt;
  133. &lt;/plugin&gt;
  134. &lt;plugin&gt;
  135. &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
  136. &lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt;
  137. &lt;configuration&gt;
  138. &lt;source&gt;${java.version}&lt;/source&gt;
  139. &lt;target&gt;${java.version}&lt;/target&gt;
  140. &lt;annotationProcessorPaths&gt;
  141. &lt;path&gt;
  142. &lt;groupId&gt;org.mapstruct&lt;/groupId&gt;
  143. &lt;artifactId&gt;mapstruct-processor&lt;/artifactId&gt;
  144. &lt;version&gt;1.4.0.Beta3&lt;/version&gt;
  145. &lt;/path&gt;
  146. &lt;/annotationProcessorPaths&gt;
  147. &lt;/configuration&gt;
  148. &lt;/plugin&gt;
  149. &lt;/plugins&gt;
  150. &lt;/build&gt;
  151. &lt;/project&gt;

PS: I have removed JPA dependency to make it work without spring. Forget it.

You can find that I have changed swagger dependencies to look like below -

  1. &lt;dependency&gt;
  2. &lt;groupId&gt;io.springfox&lt;/groupId&gt;
  3. &lt;artifactId&gt;springfox-swagger2&lt;/artifactId&gt;
  4. &lt;version&gt;${swagger.version}&lt;/version&gt;
  5. &lt;exclusions&gt;
  6. &lt;exclusion&gt;
  7. &lt;groupId&gt;org.mapstruct&lt;/groupId&gt;
  8. &lt;artifactId&gt;mapstruct&lt;/artifactId&gt;
  9. &lt;/exclusion&gt;
  10. &lt;/exclusions&gt;
  11. &lt;/dependency&gt;
  12. &lt;dependency&gt;
  13. &lt;groupId&gt;io.springfox&lt;/groupId&gt;
  14. &lt;artifactId&gt;springfox-swagger-ui&lt;/artifactId&gt;
  15. &lt;version&gt;${swagger.version}&lt;/version&gt;
  16. &lt;exclusions&gt;
  17. &lt;exclusion&gt;
  18. &lt;groupId&gt;org.mapstruct&lt;/groupId&gt;
  19. &lt;artifactId&gt;mapstruct&lt;/artifactId&gt;
  20. &lt;/exclusion&gt;
  21. &lt;/exclusions&gt;
  22. &lt;/dependency&gt;

Can you check if it works for you?

Update
After codegen step, this is what it generates -

  1. package com.example.springmysqlelastic.mapper;
  2. import java.util.ArrayList;
  3. import java.util.List;
  4. import javax.annotation.Generated;
  5. import org.springframework.stereotype.Component;
  6. @Generated(
  7. value = &quot;org.mapstruct.ap.MappingProcessor&quot;,
  8. date = &quot;2020-08-11T16:40:57+0530&quot;,
  9. comments = &quot;version: 1.4.0.Beta3, compiler: javac, environment: Java 1.8.0_265 (Private Build)&quot;
  10. )
  11. @Component
  12. public class UserMapperImpl implements UserMapper {
  13. @Override
  14. public UserDTO toUserDTO(User user) {
  15. if ( user == null ) {
  16. return null;
  17. }
  18. UserDTO userDTO = new UserDTO();
  19. return userDTO;
  20. }
  21. @Override
  22. public List&lt;UserDTO&gt; toUserDtos(List&lt;User&gt; users) {
  23. if ( users == null ) {
  24. return null;
  25. }
  26. List&lt;UserDTO&gt; list = new ArrayList&lt;UserDTO&gt;( users.size() );
  27. for ( User user : users ) {
  28. list.add( toUserDTO( user ) );
  29. }
  30. return list;
  31. }
  32. @Override
  33. public User toUser(UserDTO userDTO) {
  34. if ( userDTO == null ) {
  35. return null;
  36. }
  37. User user = new User();
  38. return user;
  39. }
  40. @Override
  41. public List&lt;User&gt; toUsers(List&lt;UserDTO&gt; userDTOS) {
  42. if ( userDTOS == null ) {
  43. return null;
  44. }
  45. List&lt;User&gt; list = new ArrayList&lt;User&gt;( userDTOS.size() );
  46. for ( UserDTO userDTO : userDTOS ) {
  47. list.add( toUser( userDTO ) );
  48. }
  49. return list;
  50. }
  51. }

huangapple
  • 本文由 发表于 2020年8月11日 16:56:47
  • 转载请务必保留本文链接：https://go.coder-hub.com/63354852.html
  • java
  • mapstruct
  • spring
  • spring-boot
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