springMVC返回json数据

下载jar包，地址http://www.pc6.com/softview/SoftView_441783.html

选择普通下载

在spring-mvc文件里加上

<mvc:annotation-driven>
      <mvc:message-converters register-defaults="false">
            <bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
                <property name="supportedMediaTypes">
                    	<list>
                        	<value> text/html; charset=UTF-8</value>
                        	<value> application/json; charset=UTF-8</value>
                    	</list>
                </property>
            </bean>
      </mvc:message-converters>
</mvc:annotation-driven>

java代码

@RequestMapping("/first")
    @ResponseBody
    public Object getJson(){
	    Map<String, Object> map=new HashMap<String, Object>();
	    map.put("fd", "郝鹏");
	    return map;
	}
	
	@RequestMapping("/list")
	@ResponseBody
	public Map<String,Object> getUserList(){
		List<User> list = new ArrayList<User>();
		User user1 = new User();
		user1.setUserName("Tom");
		user1.setPassword("666666");
		
		User user2 = new User();
		user1.setUserName("Jon");
		user1.setPassword("888888");
		
		list.add(user1);
		list.add(user2);
		
		Map<String,Object> modelMap = new HashMap<String,Object>(3);
		modelMap.put("work", "test");
		modelMap.put("school", "sanming");
		modelMap.put("userlist", list);
		
		return modelMap;
	}

jsp代码

<a href="first">first</a><br><br>

<a href="list">list</a><br><br>

运行效果图