Shulou(Shulou.com)06/03 Report--

本篇内容介绍了"如何编写ajax的定时调用每5秒调用一次"的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧!希望大家仔细阅读，能够学有所成!

复制代码 代码如下:

function initXMLRequest(){

if (window.ActiveXObject) {

xmlRequest = new ActiveXObject("Microsoft.XMLHTTP");

} else {

if (window.XMLHttpRequest) {

xmlRequest = new XMLHttpRequest();

}

}

}

function sendHTTPRequest(){

initXMLRequest();

var url = "monitor!taskdata.action"; //调用的servlet

if (xmlRequest) {

xmlRequest.open("POST", url, true);

xmlRequest.send(null);

xmlRequest.onreadystatechange = isDataExists;

//使用方法回调，每5秒调用一次

setTimeout("sendHTTPRequest()",5000);

}

}

function isDataExists(){

if (xmlRequest.readyState == 4) {

if (xmlRequest.status == 200) {

var data = eval("("+xmlRequest.responseText+")");

// 获取tbody的表格内容

var taskTable = document.getElementById("tasktbody");

for(var i=taskTable.childNodes.length-1;i>=0;i--){

taskTable.removeChild(taskTable.childNodes[i]);

}

$.each(data, function(i,val){

var newTR = taskTable.insertRow(taskTable.rows.length);

newTR.id="taskdata_"+(i+1);

newTR.ondblclick=getdetail;

newTR.onclick=selectRow;

backColor(val.taskstatus,newTR);

var newNameTD=newTR.insertCell(0);

newNameTD[xss_clean] = val.taskname;

newNameTD.id="taskname_"+(i+1);

var newStatusTD=newTR.insertCell(1);

newStatusTD[xss_clean] = val.taskstatus;

newStatusTD.id="taskstatus_"+(i+1);

var newArgTD=newTR.insertCell(2);

newArgTD[xss_clean] = val.data_start_time;

var newOtherArgTD=newTR.insertCell(3);

newOtherArgTD[xss_clean] = val.schedule_interval;

var newdateformatTD=newTR.insertCell(4);

newdateformatTD[xss_clean] = val.next_execution_time;

var newbackwordTD=newTR.insertCell(5);

newbackwordTD[xss_clean] = val.taskdetailscount;

var newpriorityTD=newTR.insertCell(6);

newpriorityTD[xss_clean] = val.statusruncount;

var newleftTD=newTR.insertCell(7);

newleftTD[xss_clean] = val.statusfinishcount;

var newlefttimeTD=newTR.insertCell(8);

newlefttimeTD[xss_clean] = val.statuserrorcount;

});

}

}

}

"如何编写ajax的定时调用每5秒调用一次"的内容就介绍到这里了，感谢大家的阅读。如果想了解更多行业相关的知识可以关注网站，小编将为大家输出更多高质量的实用文章!

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