字符串天通过json转换成Map值

String str = "[dt=2013-02-20 09:35:26];[sid=2001];[cat=LOGIN];[pid=631];[grade=90,100];[alltime=2601962];[aid=seanlove];[wallet=360,1584095,240];[ip=121.9.243.14];[do=login];[name=二]";
				str = str.toString().trim().replace("];[", "','");
				str = str.replace("=", "':'");
				str = str.replace("]", "'}");
				str = str.replace("[", "{'");
				JSONObject jasonObject = JSONObject.fromObject(str);
				Map map1 = (Map) jasonObject;
				//转换后 ： {"dt":"2013-02-20 09:35:26","sid":"2001","cat":"LOGIN","name":"二","grade":"90,100","do":"login","pid":"631","aid":"seanlove","alltime":"2601962","wallet":"360,1584095,240","ip":"121.9.243.14"}
				System.out.println(map1.get("dt"));