List与Json的相互转换

package com.listandjson;

import java.util.ArrayList;
import java.util.List;
import net.sf.json.JSONArray;

public class Test {
	
	public static void main(String[] args) {
		List<String> list = new ArrayList<String>();
		list.add("abc");
		list.add("123");
		
		//list转成json
		String json =JSONArray.fromObject(list).toString();
		System.out.println(json);	
		//运行：["abc","123"]
		
		//json转成list
		 JSONArray jsonArray = JSONArray.fromObject(json); 
		 List<String> list2 = (List) JSONArray.toCollection(jsonArray); 
		 for (int i = 0; i < list2.size(); i++) {
			System.out.println(list2.get(i));	
			//运行：abc
			//　　  123
		}
	}
}