json数据与实体类之间的相互转换

package com.jingyou.application.common;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;

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


/**
 * JSON转换器.博主为大家列举N种json转换格式，实体，集合（List,Map），数组等类型，一定是大家需要和喜爱的！

	详细阅读，收益匪浅！
 */
@SuppressWarnings("unchecked")
public class JSONUtils {
	
	/**1，
	 * 转换 ServiceDataObject生成的json字符串为JSONArray对象
	 * @param datasJSON
	 * @return
	 */
	public static JSONArray createJSONArray(String datasJSON){
        String datas = JSONUtils.json2String(datasJSON, "datas");
        JSONArray results = new JSONArray();;
        JSONArray datasJSONArray = JSONArray.fromObject(datas);
		Iterator iterator = datasJSONArray.iterator();
		while(iterator.hasNext()){
			JSONObject data = (JSONObject) iterator.next();
			JSONObject eachDataObject = data.getJSONObject("data");
			results.element(eachDataObject);
		}
		return results;
	}
	
	/**
	 * 转换 ServiceDataObject生成的json字符串为List对象
	 * @param datasJSON
	 * @return
	 */
	@SuppressWarnings("rawtypes")
	public static List createJSONObjects(String datasJSON){
		List results = new ArrayList();
        String datas = JSONUtils.json2String(datasJSON, "datas");
        JSONArray jsonArray = JSONArray.fromObject(datas);
		Iterator iterator = jsonArray.iterator();
		while(iterator.hasNext()){
			JSONObject data = (JSONObject) iterator.next();
			JSONObject eachDataObject = data.getJSONObject("data");
			results.add(eachDataObject);
		}
		return results;
	}
	
	/**
	 * 转换 ServiceDataObject生成的json字符串为JSONObject对象
	 * @param datasJSON
	 * @return
	 */
	@SuppressWarnings("rawtypes")
	public static JSONObject createJSONObject(String datasJSON){
		JSONObject result = new JSONObject();
        String datas = JSONUtils.json2String(datasJSON, "datas");
        JSONArray jsonArray = JSONArray.fromObject(datas);
		Iterator iterator = jsonArray.iterator();
		while(iterator.hasNext()){
			JSONObject data = (JSONObject) iterator.next();
			JSONObject eachDataObject = data.getJSONObject("data");
			result = eachDataObject;
		}
		return result;
	}
	
	
	/**
	 * 将json字符串转换成List