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1:html call JS in the function, JS use AJAX request back to the table request, return data.
<!DOCTYPE HTML><HTMLLang= "en"><Head> <MetaCharSet= "UTF-8"> <title>Title</title> <Script> varURL; Defining a variable URL functionlink () {//your features
$.ajax ({ //ajax request
Type: "Get", //Request method
Data: { //Transfer to background, field
"userid": UserID
}, URL: "<%=path%>/download.do", //request interface, URL
Async:false, //non-asynchronous request
Success:function (data) { // callback function, after success, back to data
url = data; Data assignment to URL
}
});
window.location.href=Url; Using URLs
}
</Script>
</Head>
<Body>
<ahref= "javascript:void (0)"onclick= "link ()">Client Download</a>//Call JS function
</Body> </HTML>
Ajax request, HTML call JS
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