String strData = "{" + "userbean" + ":" + "{" + "Uid" + ":"
					+ "100196" + "," + "Showname" + ":"
					+ "\u75af\u72c2\u7684\u7334\u5b50" + "," + "Avtar"
					+ ":null," + "State" + ":1}" + "}";

			JSONTokener jsonParser = new JSONTokener(strData);
			JSONObject person = null;
			try {
				person = (JSONObject) jsonParser.nextValue();
				System.out.println("person=======" + person); // 这里可以成功读取

				// String str = person.getString("Showname").toString(); //
				// 这里读取失败
				String uid = person.getJSONObject("userbean").getString(
						"Showname");
				System.out.println("uid==" + uid);

				String strUserbean = person.getJSONObject("userbean")
						.getString("Uid");
				System.out.println("str==" + strUserbean);

				String sta = person.getJSONObject("userbean")
						.getString("State");
				System.out.println("sta==" + sta);

			} catch (JSONException e) {
				e.printStackTrace();
				System.out.println("fail...");
			}