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  • ashx 文件的使用

    它就类似.aspx文件,用于处理传入到服务器的HTTP请求,但它不会像.aspx文件那样要返回处理结果和大量HTML,它可以返回简单的字符串、图片等。

    百度百科定义链接:http://baike.baidu.com/view/3799515.htm

    开发实例如下:

    前端请求核心代码(json):

     var jsonArray= new Array();        

      var jsonObj = {};          

           jsonObj["CourseId"] = $(this).children().eq(0).text();;          

           jsonObj["CertCategory"] = $(this).children().eq(3).text();              

          jsonObj["SubCertCategory"] = $(this).children().eq(4).text();                

          jsonArray.push(jsonObj)         

        });         

        var jsonDate =               

      {                   

                 jsontype: "objType",                  

                 jsonCount: jsonArray.length,               

                 jsonArray: jsonArray

      }           

      $.ajax({                  

       type: "post",                  

       url: "/AjaxPage/Certification.ashx",    

        dataType: "json",             

        data: objDate,         

         complete :function(){$("#load").hide();},//AJAX请求完成时隐藏     

        success: function (data)

        {                   

            if (data["Succeed"])

           {                          

                 alert("提交成功!");                           

                 window.location.href = “";                       

            }                    

          },             

            error: function (XMLHttpRequest, textStatus, errorThrown)

           {

               alert("请求对象XMLHttpRequest: "+XMLHttpRequest);
               alert("错误类型textStatus: "+textStatus);
               alert("异常对象errorThrown: "+errorThrown);          

            }                

    });           

    后台ashx 接收:

      public void ProcessRequest(HttpContext context)        

      {                 

            string jsontype= context.Request["jsontype"];           

           int  certCount=context.Request["jsonCount"];  

            AjaxResult    result = new AjaxResult ();         

            switch (jsontype)            

            {                

                     case "objType":                    

                    {                        

                         #region 操作        

                      for (int k = 0; k < certCount; k++)
                      {
                            var courseId = context.Request["jsonArray[" + k + "][CourseId]"];   

                      }                               

                        result.Succeed = true;                            

                        result.resultMsg= ex.Message;       

                        context.Response.Write(JsonConvert.SerializeObject(result));                                             

                      }

                    break;  

                    #endregion                                  

               }                  

     }

    返回信息构建:

        public class AjaxResult     {

          public bool Succeed { get; set; }       

          public string resultMsg { get; set; }       

          public object  ObjInfo { get; set; }        

          public void setTrue(string message)       

         {            

                this.Succeed = true;         

                 this.resultMsg= message;        

          }

            public void setError(string message)        

            {          

                    this.Succeed = false;           

                    this.resultMsg= message;    

             }

        }

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  • 原文地址:https://www.cnblogs.com/hanxingli/p/5228110.html
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