Map快速转换JSon 格式方法和完整的jar

最近在搞java后台。写一些测试Servlet接口，所以避免不了的是一些JSon数据的操作。因为我们前台最希望的数据返回都是已json格式返回的。其中我们最常用的就是返回结果是自定义的一些map集合，所以我们想要快速转换成JSON格式。下面开代码。

package com.szh.login.servlets;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.json.JSONObject;

public class Test extends HttpServlet {

private static final long serialVersionUID = 1L;

public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
// response.setContentType("application/json; charset=utf-8");
// {"result":"0","resultList":[{json},{json},{json}]};
PrintWriter pw = response.getWriter();
Map<String, Object> map = new HashMap();
map.put("result", 0);
map.put("list", "hello");
//很简单直接一句话需要引入jar，这个比较烦有好多。不全的话就会出错
JSONObject json = JSONObject.fromObject(map);
pw.print(json.toString());
System.out.println("json  :" + json.toString());
// System.out.println("json object :"+json.toString());

pw.close();
}

public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

this.doGet(request, response);
}

}

看一下答应结果：

json :{"result":0,"list":"hello"}

所以成功转换。

需要的jar包连接如下：http://download.csdn.net/detail/qq_35522272/9672266