JsonResult.java

package net.oschina.app.bean;

import net.oschina.app.AppException;

import org.json.JSONException;
import org.json.JSONObject;

/**
 * 通过json字符串解析的结果实体类
 * 
 * @author 火蚁（http://my.oschina/LittleDY）
 * @version 1.0
 * @created 2014-03-18
 */
public class JsonResult {

    public final static String NODE_MES = "msg";
    public final static String NODE_ERROR = "error";

    private String message;// 成功消息
    private String errorMes;// 错误消息
    private boolean ok;// 是否成功

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public String getErrorMes() {
        return errorMes;
    }

    public void setErrorMes(String errorMes) {
        this.errorMes = errorMes;
    }

    public boolean isOk() {
        return ok;
    }

    public void setOk(boolean ok) {
        this.ok = ok;
    }

    public static JsonResult parse(String jsonStr) throws AppException {
        JsonResult jsonResult = new JsonResult();
        try {
            JSONObject jsonObject = new JSONObject(jsonStr);
            // 如果有错误信息则表示不成功
            if (jsonObject.isNull(NODE_ERROR)) {
                jsonResult.setOk(true);
            }
            if (!jsonObject.isNull(NODE_ERROR)) {
                jsonResult.setErrorMes(jsonObject.getString(NODE_ERROR));
            }
            if (!jsonObject.isNull(NODE_MES)) {
                jsonResult.setMessage(jsonObject.getString(NODE_MES));
            }
        } catch (JSONException e) {
            // 抛出一个json解析错误的异常
            throw AppException.json(e);
        }
        return jsonResult;
    }
}