springmvc 全注解 javax.servlet.ServletException: No adapter for handler异常

Question

<beans xmlns="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 

xmlns:context="http://www.springframework.org/schema/context"

xmlns:mvc="http://www.springframework.org/schema/mvc"

xmlns:aop="http://www.springframework.org/schema/aop"

xsi:schemaLocation="http://www.springframework.org/schema/beans

        http://www.springframework.org/schema/beans/spring-beans.xsd

        http://www.springframework.org/schema/context

        http://www.springframework.org/schema/context/spring-context.xsd

        http://www.springframework.org/schema/aop

        http://www.springframework.org/schema/aop/spring-aop.xsd

        http://www.springframework.org/schema/mvc

        http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    

    <!-- 启用Spring 基于annotation 的DI 使用户可以在Spring MVC中使用Spring的强大功能

             激活@Request @Autowired JSR 250's @PostConstruct,@PreDestory and @Resource等标

     -->

    <context:annotation-config />

    

<!-- 开启扫描只扫描controlle的注解 -->

<context:component-scan base-package="top.yunduo2018.taskchain.controller" />

    

    <!-- 扩充了注解驱动  可以将参数绑定到控制器参数 --> 

    <mvc:annotation-driven />

    

    <!-- DispatcherServlet不处理静态资源,交给服务器默认的servlet处理 -->

    <mvc:default-servlet-handler />

    

<!-- HandlerMapping  无需配置 SpringMVC默认启动  

     DefaultAnnotationHandlerMapping  annotation-drivern HandlerMapping

    -->

</beans>

controller 层代码

package top.yunduo2018.taskchain.controller;

import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.stereotype.Repository;

import org.springframework.web.bind.annotation.RequestBody;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

import org.springframework.web.bind.annotation.ResponseBody;

import top.yunduo2018.taskchain.common.ReturnMessage;

import top.yunduo2018.taskchain.entity.UserInfoEntity;

import top.yunduo2018.taskchain.service.UserInfoService;

@Controller

@Repository(value = "/user/*")

public class UserInfoController {

    @Autowired

    UserInfoService userInfoservice;

    /*

     * 访问路径....项目名/user/userLogin

     * post请求

     * @param UserInfoEntity实体类的数据类型

     * return  Map<String,Object>

     * */

    @ResponseBody

    @RequestMapping(value="userLogin.do",method = RequestMethod.POST)

    

    public  Map<String,Boolean> userLogin(UserInfoEntity user){

        

        boolean res=userInfoservice.isExistUser(user);

        

        return ReturnMessage.returnMsg("success", res);

        

    }

    

    /*

     * 访问路径....项目名/user/userRegister

     * post请求

     * @param UserInfoEntity实体类的数据类型

     * return  Map<String,Object>

     * */

    

    @ResponseBody

    @RequestMapping(value="userRegister.do",method = RequestMethod.POST)

    public   String userRegister(UserInfoEntity user){

        

        /*boolean res=userInfoservice.register(user);

        

        return ReturnMessage.returnMsg("success", res);*/

        

        return "success";

 

    }

    

}

tomcat 启动的时候没有报错

http://localhost:80/TaskChain/user/userRegister.do

访问接口的时候

就报以下异常

javax.servlet.ServletException: No adapter for handler [top.yunduo2018.taskchain.controller.UserInfoController@1600c14a]: The DispatcherServlet configuration needs to include a HandlerAdapter that supports this handler

at org.springframework.web.servlet.DispatcherServlet.getHandlerAdapter(DispatcherServlet.java:1272)

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1021)

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)

at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)

at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)

at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)

at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800)

at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)

at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806)

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)

at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

at java.lang.Thread.run(Thread.java:748)