Ajax Post请求实例

前台JS

function OnSaveBarCodeTitle() {          

            if (document.getElementByIdx_x("Path1").value != "") {

 

                var mPDF417Text = PDF417Text.value;

                var mTitle = mPDF417Text.split("^");

                $.post("Pdf417.ashx?action=SaveCarCode", { Barcode_File: document.getElementByIdx_x("Path1").value, BarCodeDescript: mTitle[6], r: Math.random() }, 

            function (data) {

                data = eval_r(data);

            }, "json");

                alert("保存成功");

            }

            else {

                alert("请先进行‘获取图片路径’操作");

            }

 

        } 

 

  post：请求类型  Pdf417.ashx?action=SaveCarCode：一般处理程序?action=键--在一般处理程序里面对应相应的方法   Barcode_File对应流ctx.Request["Barcode_File"]

一般处理程序

 public void ProcessRequest(HttpContext context)

    {

        context.Response.ContentType = "text/plain";

        if (context.Request["action"] == "GetPDF417")

        {

            GetPDF417();

        }

        else if (context.Request["action"] == "SaveCarCode")

        {

            SaveCarCode();

        }

        context.Response.Flush();

        context.Response.End();

    }

 private int mSaveCarCode(string barcode_File, string barCodeDescript)

    {

        

        SqlParameter[] para ={new SqlParameter("@BarCodeImage",barcode_File),

                              new SqlParameter("@BarCodeDescript",barCodeDescript)};

        int result = mGear.Projects.Utility.SqlHelper.ExecuteNonQuery(conn, CommandType.StoredProcedure, "dbo.CreateBsarCode", para);

       return result;

        

    }