paulwong

spring3MVC+JSON

 <!-- 自动解析action返回值 解析成json格式 -->
<context:component-scan base-package="com.bplow.*.web" />  
<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />  
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" >  
    <property name="messageConverters">  
        <util:list id="beanList">  
            <ref bean="mappingJacksonHttpMessageConverter"/>  
        </util:list>  
    </property>  
</bean>  
<bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">  
    <property name="supportedMediaTypes">  
        <list>  
            <value>text/html;charset=UTF-8</value>  
        </list>  
    </property>  
</bean>  
<!-- 自动解析action返回值 解析成json格式 -->

然后需要额外的jar包 jackson 1.1,这里让我很无语，我首先下的1.9放上去什么方法找不到，换1.8x 方法找不到 我一直试到1.6 后来怒了用最老的 好了。。。坑，这绝对是坑啊

然后你的action中直接返回对象，集合，map吧 非常爽啊。测试如下





package com.bplow.test.web;

import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class TestAction {

// ResponseBody 对应string则对应ajax getText
 @RequestMapping(value = "/testAction", method = RequestMethod.GET)
@ResponseBody
public String allOnActivities() throws UnsupportedEncodingException {

return "{'title':'HelloWorldGOGOGO'}";
}

@RequestMapping(value = "/testAction2", method = RequestMethod.GET)
@ResponseBody
public TestVo getJsonVo() {

TestVo vo = new TestVo();
vo.setTitle("吃吧");
return vo;
}

@RequestMapping(value = "/testAction3", method = RequestMethod.GET)
@ResponseBody
public List getJsonList() {

TestVo vo = new TestVo();
vo.setTitle("吃吧");
List l = new LinkedList();
l.add(vo);
l.add(vo);
l.add(vo);
l.add(vo);
l.add(vo);
return l;
}

@RequestMapping(value = "/testAction4", method = RequestMethod.GET)
@ResponseBody
public Map getMap() {

TestVo vo = new TestVo();
vo.setTitle("吃吧");
HashMap hsm = new HashMap();
hsm.put("a", 123);
hsm.put("b", "123");
hsm.put("c", vo);
return hsm;
}
}

posted on 2012-05-18 00:14 paulwong 阅读(1349) 评论(0)  编辑  收藏 所属分类: SPRING MVC


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