aspx后台传递Json到前台的两种接收方法推荐

网络编程 2021-07-04 22:41www.168986.cn编程入门

狼蚁网站SEO优化长沙网络推广就为大家带来一篇aspx后台传递Json到前台的两种接收方法推荐。长沙网络推广觉得挺不错的，现在就分享给大家，也给大家做个参考。一起跟随长沙网络推广过来看看吧

第一种前台接收

dataType: "json",
 suess: function (data)
 {
	var varReceiver = data;
 }

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="echart2.aspx.cs" Inherits="RTC.echart2" %>

<!DOCTYPE html>

<html xmlns="http://.w3./1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
  <title> </title>
  <!-- 引入 ECharts 文件 -->
  <script src="scripts/echarts.mon.min.js"></script>
  <script src="scripts/jquery-1.10.2.min.js"></script>
  <script src="scripts/json2.js"></script>
</head>
<body>
<form id="form1" runat="server">

<!-- 为 ECharts 准备一个具备大小（宽高）的Dom -->
<div id="main" style="width:1000px;height:400px;">

</div>

<script type="text/javascript">

    var varAxis;
    var varSeries;
    //var varRtcNO = $("#txtHid").val();
    var varRtcNO = "35000002818";
    var jdata;

    var myChart = echarts.init(document.getElementById('main'));
    // 显示标题，图例和空的坐标轴
    myChart.setOption({
      title: {
        text: '温度曲线图'
      },
      tooltip: {
        trigger: 'axis',
        axisPointer: {
          animation: false
        },
        formatter: function (params) {
          return params[0].name + '<br />温度:' + params[0].value + '°C';
        }
      },
      legend: {
        data: ['温度']
      },
      xAxis: {
        data: []
      },
      yAxis: {
        axisLabel: {
          formatter: '{value} °C'
        },
        min: 18,
        max:30
      },
      series: [{
        name: '温度',
        type: 'line',
        smooth: true,
        data: []
      }]
    });
    // 异步加载数据
    $.ajax({
      type: "post",
      url: "getrtchistorydata.ashx?rto=" + varRtcNO,
      dataType: "json",
      suess: function (data) {
        var varReceiver = data;
        //var varReceiver = jQuery.parseJSON(data);
        var varAxis=new Array() ;
        var varSeries = new Array(varReceiver.Count[0].total);
        
        for (var i = 0; i < varReceiver.Count[0].total; i++) {
          varAxis.push(varReceiver.Rows[i].RecordTime);
          varSeries[i] = varReceiver.Rows[i].RoomTemp;
        }
        // 填入数据
        myChart.setOption({
          xAxis: {
            data: varAxis
          },
          series: [{
            //根据名字对应到相应的系列
            name: '温度',
            data: varSeries
          }]
        });
      },
      error: function (XMLHttpRequest, textStatus, errorThrown) {
        alert(errorThrown);
      }
    });
    
  </script>
</form>
</body>
</html>

第二种前台接收

dataType: "text",
        suess: 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
{
  /// <summary>
  /// getrtchistorydata 的摘要说明
  /// </summary>
  public class getrtchistorydata : IHttpHandler
  {
    public void ProcessRequest(HttpContext context)
    {
      context.Response.ContentType = "text/plain";

      string strRTCNo = context.Request.QueryString["rto"].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()
    {


    }
  }
}

以上这篇aspx后台传递Json到前台的两种接收方法推荐就是长沙网络推广分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持狼蚁SEO。

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aspx后台传递Json到前台的两种接收方法推荐

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aspx后台传递Json到前台的两种接收方法推荐

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长沙seo优化

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