解析json数据

	// 正确返回数据
	// {"error_code":"200","error":"\u8bf7\u6c42\u6210\u529f",
	// "data":{"list":[{"id":"1","name":"\u5317\u4eac\u5927\u5b66","areaid":"1","logo":null,"info":null},
	// {"id":"2","name":"\u5357\u660c\u5927\u5b66","areaid":null,"logo":null,"info":null}],"total":2}}

 

public LinkedList<ListCollegeModel> parseData(String jsonData) {

		try {

			JSONObject json = new JSONObject(jsonData);
			JSONObject data = json.getJSONObject("data");
			JSONArray array = data.getJSONArray("list");
			
			LinkedList<ListCollegeModel> list = new LinkedList<ListCollegeModel>();
			for (int i = 0; i < array.length(); i++) {
				JSONObject item = array.getJSONObject(i);
				String id = item.getString("id");
				String name = item.getString("name");// 分类id
				String areaid = item.getString("areaid");
				String logo = item.getString("logo");
				String info = item.getString("info");

				ListCollegeModel model = new ListCollegeModel();
				model.setId(id);
				model.setName(name);
				model.setAreaid(areaid);
				model.setLogo(logo);
				model.setInfo(info);

				list.add(model);
				ParseListCollegeData.lastId=new Integer(id);

			}
			return list;

		} catch (JSONException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			return null;
		}

	}

	/**
	 * 解析error_code不为200的数据
	 * 
	 * @param jsonData
	 * @return
	 */
	public String parseErrorData(String jsonData) {
		try {
			JSONObject json = new JSONObject(jsonData);
			String error = json.getString("error");
			return error;
		} catch (JSONException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			return null;
		}
	}

	/**
	 * 
	 * @param jsonData
	 * @return 返回服务器端的状态码
	 */
	public String getStatue(String jsonData) {

		try {
			JSONObject json = new JSONObject(jsonData);
			String error_code = json.getString("error_code");
			return error_code;
		} catch (JSONException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			return null;
		}

	}
	
	public int getSum(String jsonData)
	{
		try {

			JSONObject json = new JSONObject(jsonData);
			JSONObject data = json.getJSONObject("data");
			String sum=data.getString("total");
			return new Integer(sum);
		} catch (JSONException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			return 0;
		}
	}