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前言
最近因为工作中遇到一个需求,需要做了一个批量导入功能,但长时间运行没个反馈状态,很容易让人看了心急,产生各种臆想!为了解决心里障碍,写了这么个功能。
通过线程执行导入,并把正在执行的状态存入session,既共享执行状态,通过ajax调用session里的执行状态,从而实现反馈导入状态的功能!
上代码: 前端页面
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>批量导入数据</title> <style type="text/css">.pop_body_con { width: 310px; position: fixed; top: 50%; left: 50%; margin-left: -150px; background: #eee; display:none; } .pop_body_con .pop_head { width: auto; padding: 10px 0; background: #fff; }.pop_body_con .pop_head a { display: block; color: #717274; font-size: 12px; text-decoration: none; text-align: center; }.pop_box { width: auto; overflow: hidden; padding: 45px 10px; } .pop_box .pop_text { float: left; }.pop_box .pop_text p { padding: 0; margin: 0; font-size: 12px; line-height: 18px; color: #717274;} .pop_box .progress_bar_con { float: left; width: 220px; position: relative; z-index: 2; }.pop_box .progress_bar_con p { margin: 0; padding: 0; font-size: 12px; color: #fff; line-height: 18px; width: 100%; text-align: center; position: absolute; left: 0; top: 0; z-index: 4; }.pop_box .progress_bar_con .progress_bar_start { width: 100%; height: 18px; background: #C4C0C0; }.pop_box .progress_bar_con .progress_bar_end { width: 16%; height: 18px; background: #2bd35d; position: absolute; left: 0; top: 0; z-index: 3; } .pop_box .progress_bar_con { float: left; }#loading-mask { width: 100%; height: 100%; position: fixed; top: 0px; left: 0px; z-index: 0; background-color: rgba(0, 0, 0, 0.34902); display: none; } </style> <script src="ajax-master/jquery.js"></script> <script>var MyInterval;$(function () { $("#startImport").click(function () {MyInterval = setInterval(getState, 1000); });});function getState() { $.ajax({url: "test.aspx",type: "Post",data: { action: "getSession" },success: function (msg) { if (msg != "null") {msg = eval("(" + msg + ")");if (msg.being == 100) { setProcessBar(1, 1); $(".pop_body_con").hide(); $("#loading-mask").hide(); clearInterval(MyInterval);}else { $(".pop_body_con").show(); $("#loading-mask").show(); setProcessBar(msg.being, msg.count)} }} });}function setProcessBar(exeFlag, exeMax) { $("#progressbar_text").html(parseInt(roundFun(exeFlag / exeMax, 2) * 100) + "%"); $("#progressbar_bar").attr("style", "width:" + parseInt(roundFun(exeFlag / exeMax, 2) * 100) + "%;");}function roundFun(number, X) { X = (!X ? 2 : X); return Math.round(number * Math.pow(10, X)) / Math.pow(10, X);} </script></head><body style="background-color: #fff;"> <input id="startImport" type="button" value="导入数据" /> <div id="loading-mask" ></div> <div class="pop_body_con"><div class="pop_head"> <a href="javascript:;">正在导入…请勿操作!</a></div><div class="pop_box"> <div class="pop_text"><p>导入进度:</p> </div> <div class="progress_bar_con"><p id="progressbar_text">0%</p><div class="progress_bar_start"></div><div class="progress_bar_end" id="progressbar_bar"></div> </div></div> </div></body></html>
后台页面:
using System.Linq;using System.Threading;using System.Web;using System.Web.Script.Serialization;using System.Web.UI;using System.Web.UI.WebControls;public partial class test : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) {string action = Request.Form["action"];if (!string.IsNullOrEmpty(action)){ Hashtable temp = tmethod(); if (temp == null) {Thread trd = new Thread(new ParameterizedThreadStart(insertData));trd.Start(action); } else {if (temp["reCode"].ToString() == "100"){Session.Remove("process");} } JavaScriptSerializer ser = new JavaScriptSerializer(); String jsonStr = ser.Serialize(temp); Response.Write(jsonStr); Response.End();} } public Hashtable tmethod() {return (Hashtable)Session["process"]; } private void insertData(object obj) {string action = obj.ToString();int tCount = 100;for (int i = 0; i < tCount; i++){ Hashtable stateHash = setStateVal(0, i, tCount, action); Session["process"] = stateHash; //存入session,方便共享执行状态 Thread.Sleep(500);}Session["process"] = setStateVal(100, tCount, tCount, action);Thread.CurrentThread.Abort(); } private Hashtable setStateVal(int code, int beingV, int CountV, string action) {Hashtable stateHash = new Hashtable();stateHash["reCode"] = code; //返回状态值stateHash["being"] = beingV;//正在执行值stateHash["count"] = CountV;//总值stateHash["action"] = action;//总值return stateHash; }}
ok,共享完毕!
总结
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