REST WebService 怎么响应JSON格式数据？？？？

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我现在有个问题，整了很长时间了，还没整出来。。
直接上代码：
POJO类：

@XmlRootElement(name = "UserVO")
@XmlAccessorType(XmlAccessType.FIELD)
public class UserVO {
   private int id;
   private String name;

   public int getId() {
       return id;
   }
   public void setId(int id) {
       this.id = id;
   }
   public String getName() {
       return name;
   }
   public void setName(String name) {
       this.name = name;
   }
}

DAO类：
public class UserDAO {

   private static Map<String, UserVO> userVOs;

   static {
       userVOs = new HashMap<String, UserVO>();

       UserVO u1 = new UserVO();
       u1.setId(1);
       u1.setName("zjp");

       UserVO u2 = new UserVO();
       u2.setId(2);
       u2.setName("zzzzz");

       userVOs.put("1", u1);
       userVOs.put("2", u2);
   }

   public static Map<String, UserVO> getPersons() {
       return userVOs;
   }

   public static UserVO getPerson() {
       return userVOs.get("1");
   }

}

Service类：

@Path("/userservice")
public class UserService {

   @GET
   @Path("/getUsers")
   @Produces({"application/json","application/xml"})
   public UserVOMap getUsers() {
       System.out.println("get users ");
       Map<String, UserVO> userVOs = UserDAO.getPersons();
       UserVOMap userVOMap = new UserVOMap();
       userVOMap.setUserVOs(userVOs);
       return userVOMap;
   }

   @GET
   @Path("/getUser")
   @Produces("application/json")
   public UserVO getUser() {
       System.out.println("get user ");
       UserVO userVO = UserDAO.getPerson();
       return userVO;
   }
}

Spring的配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jaxrs="http://cxf.apache.org/jaxrs"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd">

   <import resource="classpath:META-INF/cxf/cxf.xml" />



   <import resource="classpath:META-INF/cxf/cxf-servlet.xml" />

   <bean id="userService" class="user.UserService">
   </bean>

   
   <jaxrs:server id="restContainer" address="/user/" >
       <jaxrs:serviceBeans>
           <ref bean="userService" />
       </jaxrs:serviceBeans>
       <jaxrs:extensionMappings>
           <entry key="json" value="application/json" />
       </jaxrs:extensionMappings>
   </jaxrs:server>
</beans>

服务器是用Jetty发布的，现在访问：http://localhost/user/userservice/getUser想得到JSON格式的数据，可一直失败，响应XML格式的正常。。

请大神们帮忙看看。。是不是哪里配置出错了。。。

JSON

cto-jp

发帖于5年前 0回/2K+阅