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I have a logic to generate pdf written in js in my JSP.

AutoDownloadPDF.jsp:

setInterval(function() {
        $.ajax({
        type: "POST",
        url: "GetInvoicesNo.jsp?EntityID=40&MappingID=<%=getMappingID%>",
        async: false,
        success: function(data){    
        var splitData =data.trim().split(',');
                $.each(splitData, function(index, value){
                if(value.trim()!=''){
                var url="GeneratePDF.jsp?EntityCode=<%=getEntityCode%>&InvoiceNo="+value;
        var printWindow = window.open(url,"_blank");
                 }
                        
            });     
                    
    }
    }); 
}, 90000);

Current Setup:

I'm triggering AutoDownloadPDF.jsp through a Windows batch script like this:

msedge --app=http://localhost:8088/APP/AutoDownloadPDF.jsp

The process works as intended; however, this method is unsuitable for my server environment because the server may log off, which causes Microsoft Edge to close and interrupts the process.

I tried tools like HTMLUnit and Playwright but didn’t work for me. It seems the problem is that the JSP depends heavily on browser-based JavaScript. Are there any tools or approaches that can handle this effectively?

Improve this question
4
  • Recreate the jsp in javascript and run using node.js - you can use one of these. I am sure they map 1:1 to the jsp code dev.to/xeshan6981/… Commented Jan 1 at 9:30
  • 2
    I'm not really sure what the question is. You've shown JavaScript code, which runs on the client, but not the server-side code that processes the POST request. Please could you show a minimal, reproducible example ( stackoverflow.com/help/minimal-reproducible-example) that demonstrates the problem and explain more clearly what the actual problem is. What do you observe to be happening and what is supposed to happen instead? Commented Jan 1 at 9:42
  • Is there any actual reason you need JS there as opposed to just doing everything server-side/in the Java application? Commented Jan 1 at 14:36
  • @KJ thank you so much for the comment! the Chrome-headless really helpful! it can be generated in the background now! Commented Jan 1 at 18:51
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