Ajax 调用(传值)一般处理程序(.ashx)

Posted 2020-07-10 二狗

问题:在一般处理程序(.ashx)中累加[index=‘b‘]的值
难点:前台获取JSON值后台解析
解决:
//#region 把index=b的值存在JSON对象中
function AjaxGetSum() {
  var arr = [];
  $("input[index=‘b‘]").each(function () {
    var arrObject = {};
    var tempVal = $(this).val();
    if (!$.gstr.isEmpty(tempVal)) { //本公司自己封装的js $.gstr.isEmpty(st) 判断st是否为空,返回true/false
      arrObject["inValue"] = tempVal;
      arr.push(arrObject);
    }
  });
  var JsonString = JSON.stringify(arr); //转换成JSON类型的字符串
  $.post("HandlerSum.ashx", { jsonVar: JsonString }, function (data) {
    alert(data);
  })
}
//#endregion

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using Newtonsoft.Json.Converters;

namespace Train_First.Ajax_Rpc
{
  /// <summary>
  /// HandlerSum 的摘要说明
  /// </summary>
  public class HandlerSum : IHttpHandler
  {		
    public void ProcessRequest(HttpContext context)
    {
      context.Response.ContentType = "text/plain";
      string ss = context.Request.Form["jsonVar"];	//获取前台传递过来的授课JSON字符串数组
      JArray javascript = (JArray)JsonConvert.DeserializeObject(ss);  //反序列化获取的JSON字符串数组

      string StringSum = "";
      for (int i = 0; i < javascript.Count; i++)
      {
        JObject obj = (JObject)javascript[i];
        string outValue = obj["inValue"].ToString();  //将一个个反序列化的JSON字符串数组转换成对象
        StringSum += outValue;
      }
      context.Response.Write(StringSum);  
    }
    public bool IsReusable
    {
      get
      {
        return false;
      }
    }
  }
}