如何通过Ajax调用来调用JS函数
[英]How to call JS function through ajax call
问题描述
I want to call a jsp file through ajax post call. 
我想通过ajax调用来调用jsp文件。 So I've done below code - 所以我完成了以下代码-
xmlhttp=new XMLHttpRequest();
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("myDiv").innerHTML=xmlhttp.responseText;
}
}
var params = "report_id=0&id=1234567890";
xmlhttp.open("POST","/test/jsp/test.jsp",true);
xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
xmlhttp.setRequestHeader("Content-length", params.length);
xmlhttp.setRequestHeader("Connection", "close");
xmlhttp.send(params);
}
</script>
</head>
<body onload="loadXMLDoc()">
<div id="myDiv"></div>
Now test.jsp looks like below - 现在test.jsp如下所示-
<html>
<head>
<script language="JavaScript">
function hello()
{
alert("Hello");
//Do my stuff
}
</script>
<title>test Page</title>
</head>
<body topmargin="0" leftmargin="0" onload="hello()">
<form name="mainForm" >
</form>
</body>
</html>
Issue is, I'm not getting alert message when opening my first html page. 问题是，打开我的第一个HTML页面时，我没有收到警告消息。 What is wrong here and what needs to be done? 这里有什么问题，需要做什么？
2 个解决方案
解决方案1
2 2014-05-29 11:37:17
Instead of trying with onload function, use ready function as 与其尝试使用onload函数，不如使用ready函数作为
$( document ).ready(function()
{
//here you can call hello function
})
解决方案2
0 2013-10-04 20:44:48
you will not get javascript executed when you are making ajax call like this. 当您进行这样的ajax调用时，您将不会执行JavaScript。
Once ajax call is made you should trigger a function on main page not on ajax page 一旦进行了ajax调用，您应该在主页上而不是ajax页面上触发一个函数
$.ajax({
type: "POST",
url: "test.jsp",
success: function(){
hello();
},
error: function(){
alert("error");
}
});
function hello()
{
}
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