function ObjToForm(obj) {
  var formStr;
  for (var name in obj) {
    if (formStr == undefined || formStr == null) {
      formStr = name + '=' + obj[name];
    } else {
      formStr += '&' + name + '=' + obj[name];
    }
  }
  return formStr;
}

/**
 * 发起get请求，普通form表单格式
 * @param url 地址
 * @param dataObj 请求对象
 * @param successCallback 请求成功回调
 * @param errorCallback 请求失败回调
 * @param beforeSendCallback 发送前执行
 * @param completeCallback 发送后执行
 */
function doGetForm(url, dataObj, args, successCallback, errorCallback, beforeCallback, completeCallback) {
  dataObj.tm = new Date().getTime();
  $.ajax({
    url: url,
    type: 'GET',
    contentType: "application/json;charset=utf-8",
    data: (dataObj == undefined || dataObj == null) ? {} : ObjToForm(dataObj),
    success: function(data, status, XMLHttpRequest) {
      var responseCode = XMLHttpRequest.status;
      successCallback(responseCode, data, args);
    },
    error: function(XMLHttpRequest) {
      var responseCode = XMLHttpRequest.status;
      if (errorCallback != undefined && errorCallback != null && typeof(errorCallback) == 'function') {
        errorCallback(responseCode);
      }
    },
    beforeSend: function(XMLHttpRequest) {
      if (beforeCallback != undefined && beforeCallback != null && typeof(beforeCallback) == 'function') {
        beforeCallback(XMLHttpRequest);
      }
    },
    complete: function(XMLHttpRequest, status) {
      if (completeCallback != undefined && completeCallback != null && typeof(completeCallback) == 'function') {
        completeCallback(XMLHttpRequest, status);
      }
    }
  });
};

/**
 * 发起post请求
 * @param url 请求地址
 * @param dataObj 请求对象
 * @param successCallback 请求成功回调
 * @param errorCallback 请求失败回调
 * @param beforeSendCallback 发送前执行
 * @param completeCallback 发送后执行
 */
function doPostJson(url, dataObj, args, successCallback, errorCallback, beforeCallback, completeCallback, isJson) {
  $.ajax({
    url: url,
    type: 'POST',
    contentType: "application/json;charset=utf-8",
    data: (dataObj == undefined || dataObj == null) ? {} : JSON.stringify(dataObj),
    success: function(data, status, XMLHttpRequest) {
      var responseCode = XMLHttpRequest.status;
      successCallback(responseCode, data, args);
    },
    error: function(XMLHttpRequest) {
      var responseCode = XMLHttpRequest.status;
      if (errorCallback != undefined && errorCallback != null && typeof(errorCallback) == 'function') {
        errorCallback(responseCode);
      }
    },
    beforeSend: function(XMLHttpRequest) {
      if (beforeCallback != undefined && beforeCallback != null && typeof(beforeCallback) == 'function') {
        beforeCallback(XMLHttpRequest);
      }
    },
    complete: function(XMLHttpRequest, status) {
      if (completeCallback != undefined && completeCallback != null && typeof(completeCallback) == 'function') {
        completeCallback(XMLHttpRequest, status);
      }
    }
  });
};