{ 
	"errcode" : 0, 
	"errmsg" : "ok", 
	"userlist" : [{ 
			"userid" : "chenYongTu", 
			"name" : "陈U", 
			"department" : [] 
		}, { 
			"userid" : "Davidsl1z", 
			"name" : "Davidslz", 
			"department" : [] 
		}, { 
			"userid" : "ktl123456", 
			"name" : "LT_", 
			"department" : [] 
		} 
	] 
} 
 

利用  JSONObject.fromObject(JSONSTR)  转 JSONObject 

     <span style="white-space:pre">	</span>JSONObject obj=Util.getJSONObject(USTR); 
	JSONArray entities=obj.getJSONArray("userlist"); 
		 
	for(int i=0;i<entities.size();i++) 
	{ 
		JSONObject entity=(JSONObject)entities.get(i); 
		System.out.println(entity.toString()); 
		System.out.println(entity.get("name")); 
	}

	public static JSONObject getJSONObject(String JSONSTR)  
	{ 
		JSONObject jsonObject =  JSONObject.fromObject(JSONSTR);  
		 
		return jsonObject; 
	}