JSON-JSON字符串转换成JSON对象、JSON对象数组、java实体类以及保存到List列表中

处理JSON字符串时，一直出错，写个样例后发现原来是没有弄清楚数据的格式问题。

实现的是 JSONString 转换成java对象 或是 list列表

实例类 News

package lyx.entity;

/**
 * @author lyx
 *	
 * 2015-8-10上午10:14:38
 *
 *
 *新闻类
 */
public class News {

	/**
	 * 日期
	 */
	private String date;
	
	/**
	 * 链接
	 */
	private String link;
	/**
	 * 标题
	 */
	private String title;
	
	public String getDate() {
		return date;
	}
	public void setDate(String date) {
		this.date = date;
	}
	public String getLink() {
		return link;
	}
	public void setLink(String link) {
		this.link = link;
	}
	public String getTitle() {
		return title;
	}
	public void setTitle(String title) {
		this.title = title;
	}
	
	
}

package test;

import java.util.ArrayList;
import java.util.List;
import com.pom.lyx.entity.News;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;



public class Test {
	
	/**
	 * @param args
	 */
	public static void main(String[] args)
	{
		String str_news="[{‘date‘:‘2015-08-10 14:20:34‘,‘link‘:‘http://news.baidu.com/n?cmd=2&class=hongguan&page=http://news.xinhuanet.com/finance/2015-08/10/c_128112246.htm&cls=hongguan‘,‘title‘:‘发改委：尽快上报碳排放权交易管理条例 ――百度新闻搜索‘}," +
				"{‘date‘:‘2015-08-10 14:13:22‘,‘link‘:‘http://news.xinhuanet.com/finance/2015-08/10/c_128112246.htm‘,‘title‘:‘发改委：尽快上报碳排放权交易管理条例-新华网‘}," +
				"{‘date‘:‘2015-08-10 14:02:08‘,‘link‘:‘http://guba.eastmoney.com/news,600271,193716538.html‘,‘title‘:‘期待信心修复 14股潜伏现最佳时点‘}," +
				"{‘date‘:‘2015-08-10 14:00:42‘,‘link‘:‘http://www.escn.com.cn/news/show-259795.html‘,‘title‘:‘外媒称中国欲将“APEC蓝”变常态‘}]";

	//将JSON字符串转换成JSONArray
	JSONArray array_news =new JSONArray();
	array_news = JSONArray.fromObject(str_news);
	
	
	//JSONArray -> JSONObject ->News ->List
	List<News> newsList1 =new ArrayList<News>();	
	for (int i = 0; i < array_news.size(); i++) {
			//JSONObject对象
			JSONObject jsonObj =(JSONObject) array_news.get(i);
			
			//依据key获取相应的值
			System.out.println(jsonObj.getString("title"));
			//将JSONObject对象转换成实体类后加入到List列表中
			newsList1.add((News) JSONObject.toBean(jsonObj ,News.class));
			System.out.println(newsList1.get(i).getTitle()+":"+newsList1.get(i).getLink());
		}
		
	
	//JSONArray -> List
		@SuppressWarnings("unchecked")
	 	//将JSONArray转换成List列表
		List<News> newsList =(List<News>) JSONArray.toCollection(array_news, News.class);
		for (News news : newsList) {
			System.out.println(news.getDate()+":"+news.getTitle()+":"+news.getLink());
		}
	}
}