springMVC多视图的支持

1、在springmvc.xml中加上

 <!-- 多视图的支持 -->

         <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">

             <property name="contentNegotiationManager">

                 <bean class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean"/>

             </property>

             <property name="mediaTypes">

                 <map>

                     <entry key="json" value="application/json"/>

                     <entry key="xml" value="application/xml"/>

                 </map>

             </property>

             <property name="defaultViews">

                 <list>

                     <bean class="org.springframework.web.servlet.view.json.MappingJacksonJsonView"/>

                     <bean class="org.springframework.web.servlet.view.xml.MarshallingView">

                         <constructor-arg>

                             <bean class="org.springframework.oxm.jaxb.Jaxb2Marshaller">

                                 <property name="classesToBeBound">

                                     <list>

                                         <value>com.xiaostudy.domain.User</value>

                                     </list>

                                 </property>

                             </bean>

                         </constructor-arg>

                     </bean>

                 </list>

             </property>

         </bean>

2、在支持多视图的类中加上注释@XmlRootElement

 package com.xiaostudy.domain;

 import javax.xml.bind.annotation.XmlRootElement;

 @XmlRootElement

 public class User {

     private int id;

     private String username;

     private String password;

     private int age;

     public int getId() {

         return id;

     }

     public void setId(int id) {

         this.id = id;

     }

     public String getUsername() {

         return username;

     }

     public void setUsername(String username) {

         this.username = username;

     }

     public String getPassword() {

         return password;

     }

     public void setPassword(String password) {

         this.password = password;

     }

     public int getAge() {

         return age;

     }

     public void setAge(int age) {

         this.age = age;

     }

     @Override

     public String toString() {

         return "User [id=" + id + ", username=" + username + ", password=" + password + ", age=" + age + "]";

     }

 }

3、使用

 package com.xiaostudy.controller;

 import org.springframework.stereotype.Controller;

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

 import com.xiaostudy.domain.User;

 @Controller//<bean class="com.xiaostudy.controller.MyController"/>

 @RequestMapping(value="/myController")//访问该类的方法时，前面多这样一个路径

 public class MyController {

     @RequestMapping("multiView")

     public User multiView() {

         User user = new User();

         user.setId(2018);

         user.setUsername("xiaostudy");

         user.setPassword("123456");

         user.setAge(23);

         return user;

     }

 }

4、访问

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