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aspx后台传递Json到前台的两种接收方法推荐_实用技巧_

2023-05-24 466人已围观

简介 aspx后台传递Json到前台的两种接收方法推荐_实用技巧_

第一种:前台接收

 dataType: "json", success: function (data) { var varReceiver = data; }
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="echart2.aspx.cs" Inherits="RTC.echart2" %>

第二种:前台接收

 dataType: "text", success: function (data) { //var varReceiver = data; var varReceiver = jQuery.parseJSON(data); 。。。。。 }

两者统一的后台 一般处理程序ashx:

 using System; using System.Collections.Generic; using System.Data; using System.Data.SqlClient; using System.Linq; using System.Web; namespace RTC { ///  /// getrtchistorydata 的摘要说明 ///  public class getrtchistorydata : IHttpHandler { public void ProcessRequest(HttpContext context) { context.Response.ContentType = "text/plain"; string strRTCNo = context.Request.QueryString["rtcno"].ToString(); SqlConnection con = new SqlConnection("server=192.168.0.222;uid=sa;pwd=hiwits;database=CeShi_QingDao;Max Pool Size=2048;"); SqlCommand cmd = new SqlCommand("select RtcNO,RoomTemp,InstallPlace,convert(varchar,RecordTime,120) as RecordTime,systime from RTCHistory where RtcNO='" + strRTCNo + "' order by InstallPlace,RecordTime", con); SqlDataAdapter da = new SqlDataAdapter(cmd); DataSet ds = new DataSet(); da.Fill(ds); string stbList = ""; stbList = "{\"Rows\":["; foreach (DataRow dr in ds.Tables[0].Rows) { stbList = stbList + "{ \"RecordTime\":\"" + dr[3].ToString() + "\","; stbList = stbList + " \"RoomTemp\":\"" + dr[1].ToString() + "\"},"; } stbList = stbList.Substring(0, stbList.Length - 1);//去掉最后的一个逗号 stbList = stbList + "],"; stbList = stbList + "\"Count\":[{\"total\":" + ds.Tables[0].Rows .Count+ "}]";//用来记录一共返回了几条数据记录 stbList = stbList + "}"; context.Response.Write(stbList.ToString()); } public bool IsReusable { get { return false; } } public void RetrunHistoryData() { } } }

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