春の挿入エラー[java.util.Map]のインスタンス化に失敗しました：指定されたクラスはインターフェースです

Question

メソッドを投稿してswaggerで実行したいのですが、エラーがあります。私はコントローラー、サービス、DAOまたは設定スガーガーからこのエラーを知らない。

私のプロジェクトの構造：（パッケージcom.project.maven.config中） project structure

AppConfig.java

@Override 
public void addResourceHandlers(ResourceHandlerRegistry registry) { 
    registry.addResourceHandler("**/**") 
    .addResourceLocations("classpath:/META-INF/resources/"); 
}  

SwaggerConfig.java：ポンポンで

@Configuration 
@EnableSwagger2 
public class SwaggerConfig {          

    @Bean 
    public Docket simpleDiffServiceApi() { 
     return new Docket(DocumentationType.SWAGGER_2) 
     .groupName("calculator") 
     .apiInfo(apiInfo()) 
     .select() 
     .apis(RequestHandlerSelectors.any()) 
     .paths(PathSelectors.any()) 
     .build() 
     .pathMapping("/"); 
    } 

    private ApiInfo apiInfo() { 
      return new ApiInfoBuilder() 
      .title("A simple service") 
      .description("A simple REST service made with Spring Boot in Java") 
      .contact(new Contact("Unmesh Gundecha", "http://unmesh.me", "upgundecha@gmail.com")) 
      .version("1.0") 
      .build(); 
     } 
} 

すべての依存関係.xml：

<dependencies> 
     <dependency> 
      <groupId>junit</groupId> 
      <artifactId>junit</artifactId> 
      <version>3.8.1</version> 
      <scope>test</scope> 
     </dependency> 

     <!-- Spring --> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-webmvc</artifactId> 
      <version>${org.springframework-version}</version> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-core</artifactId> 
      <version>${org.springframework-version}</version> 
     </dependency>  

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-web</artifactId> 
      <version>${org.springframework-version}</version> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-orm</artifactId> 
      <version>${org.springframework-version}</version> 
     </dependency>  

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-tx</artifactId> 
      <version>${org.springframework-version}</version> 
     </dependency> 

     <!-- Servlet+JSP+JSTL --> 
     <dependency> 
      <groupId>javax.servlet</groupId> 
      <artifactId>javax.servlet-api</artifactId> 
      <version>3.1.0</version> 
      <scope>provided</scope> 
     </dependency> 

     <dependency> 
      <groupId>javax.servlet.jsp</groupId> 
      <artifactId>javax.servlet.jsp-api</artifactId> 
      <version>2.3.1</version> 
      <scope>provided</scope> 
     </dependency>      

     <dependency> 
      <groupId>javax.servlet</groupId> 
      <artifactId>javax.servlet-api</artifactId> 
      <version>3.0.1</version> 
      <scope>provided</scope> 
     </dependency> 

     <dependency> 
      <groupId>javax.servlet</groupId> 
      <artifactId>jstl</artifactId> 
      <version>1.2</version> 
     </dependency> 

     <!-- JSON --> 
     <dependency> 
      <groupId>com.fasterxml.jackson.core</groupId> 
      <artifactId>jackson-core</artifactId> 
      <version>2.7.5</version> 
     </dependency> 
     <dependency> 
      <groupId>com.fasterxml.jackson.core</groupId> 
      <artifactId>jackson-databind</artifactId> 
      <version>2.7.5</version> 
     </dependency> 

     <!-- Dependency untuk mysql --> 
     <dependency> 
      <groupId>mysql</groupId> 
      <artifactId>mysql-connector-java</artifactId> 
      <version>5.1.9</version> 
     </dependency> 

     <!-- Hibernate -->  
     <dependency> 
      <groupId>org.hibernate</groupId> 
      <artifactId>hibernate-core</artifactId> 
      <version>${hibernate.version}</version> 
     </dependency> 

     <dependency> 
      <groupId>org.slf4j</groupId> 
      <artifactId>slf4j-simple</artifactId> 
      <version>${slf4j.version}</version> 
      <scope>provided</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.slf4j</groupId> 
      <artifactId>slf4j-api</artifactId> 
      <version>${slf4j.version}</version> 
      <scope>provided</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.slf4j</groupId> 
      <artifactId>jul-to-slf4j</artifactId> 
      <version>${slf4j.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.slf4j</groupId> 
      <artifactId>slf4j-log4j12</artifactId> 
      <version>${slf4j.version}</version> 
     </dependency>  

     <!-- Swagger --> 
     <dependency> 
      <groupId>io.springfox</groupId> 
      <artifactId>springfox-swagger2</artifactId> 
      <version>2.6.1</version> 
      <scope>compile</scope> 
     </dependency> 

     <dependency> 
      <groupId>io.springfox</groupId> 
      <artifactId>springfox-swagger-ui</artifactId> 
      <version>2.6.1</version> 
      <scope>compile</scope> 
     </dependency>  

     <dependency> 
      <groupId>org.webjars</groupId> 
      <artifactId>bootstrap</artifactId> 
      <version>3.3.5</version> 
     </dependency>  

     <!-- Local Libraries --> 
     <dependency> 
      <groupId>com.sap.hana</groupId> 
      <artifactId>ng</artifactId> 
      <version>1.0</version> 
      <scope>system</scope> 
      <systemPath>${basedir}/src/main/webapp/WEB-INF/ngdbc-1.0.jar</systemPath> 
     </dependency>   
    </dependencies> 

UserControllerで：

@RestController 
public class UserController { 

    @Autowired 
    private UserService userService; 

    @PostMapping(value={"/tesinsert"}, consumes={"application/json"}) 
    @ResponseStatus(HttpStatus.OK) 
    public ResponseEntity<?> insert(@RequestBody KasusEntity user, 
      @ModelAttribute("init_load") Map<String, String> init) throws Exception { 
     Map result = new HashMap(); 
     userService.insertTabel(user); 
     return new ResponseEntity<>(result, HttpStatus.CREATED); 
    } 

} 

userService.java：

public interface UserService { 
    public int insertTabel(KasusEntity user); 
} 

userServiceImpl.java：

@Service 
public class UserServiceImpl implements UserService { 

    @Autowired 
    private UserDao userDao; 

    @Override 
    public int insertTabel(KasusEntity user) { 
     return userDao.insert(user); 
    } 

} 

userDao.java：

public interface UserDao { 
    public int insert(KasusEntity user); 
} 

userDaoImpl.java：

@Repository 
public class UserDaoImpl implements UserDao { 

    @Autowired 
    private SessionFactory sessionFactory; 

    @Transactional 
    public int insert(KasusEntity tabel) { 
     return (int) this.sessionFactory.getCurrentSession().save(tabel); 
    } 

} 

エラー：

May 23, 2017 3:27:17 PM org.apache.catalina.core.StandardWrapperValve invoke SEVERE: Servlet.service() for servlet [dispatcher] in context with path [/SpringNew] threw exception [Request processing failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [java.util.Map]: Specified class is an interface] with root cause org.springframework.beans.BeanInstantiationException: Failed to instantiate [java.util.Map]: Specified class is an interface at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:99) at org.springframework.web.method.annotation.ModelAttributeMethodProcessor.createAttribute(ModelAttributeMethodProcessor.java:141) at org.springframework.web.servlet.mvc.method.annotation.ServletModelAttributeMethodProcessor.createAttribute(ServletModelAttributeMethodProcessor.java:80) at org.springframework.web.method.annotation.ModelAttributeMethodProcessor.resolveArgument(ModelAttributeMethodProcessor.java:101) at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:121) at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:158) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:128) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748)

この問題を解決する方法は？ swagger configから可能なエラーですか？コントローラ、DAO、サービスに自信がないからです。多分設定やその他。

ありがとうございました。

ボビー

Answer 1

あなたはこのエラーを取得しないとき@ModelAttribute("init_load") Map<String, String> init