asp.net线程批量导入数据时通过ajax获取执行状态
程序员文章站
2022-08-27 16:07:06
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...
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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