Hi All,

I am trying to display the helpful message to the user when error occur.

a) I have exception catching in Java as follow

AgencyDAO a = new AgencyDAO();
        try {
            a.updateAgency(agencyId, newAgencyCode, newAgencyName);
        } catch (DAORuntimeException e) {
           String message = "My Custom message";
            request.setAttribute("GROUPING_EXCEPTION", new Exception(message, e));
            response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, message);            
        return null;

b) AJAX call from JSP is as follow

        url: "updateAgency.do",
        data: {
            id: nRow.id, 
            new_code: jqInputs[0].value, 
            new_name: jqInputs[1].value
        success: function() {
            alert("Successfully updated.");
            oTable.fnUpdate(jqInputs[0].value, nRow, 0, false);
            oTable.fnUpdate(jqInputs[1].value, nRow, 1, false);                        
        error: function(xhr, ajaxOptions, thrownError) {
            alert("Update failed.");
            restoreRow(oTable, nRow);            

So in case of update fail I am getting message "Update failed." from alert. I want to show "My Custom message".

In Firebug when I check the response I am getting

<html><head><title>Apache Tomcat/6.0.20 - Error report</title><style><!--H1 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:22px;} H2 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:16px;} H3 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:14px;} BODY {font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;} B {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;} P {font-family:Tahoma,Arial,sans-serif;background:white;color:black;font-size:12px;}A {color : black;}A.name {color : black;}HR {color : #525D76;}--></style> </head><body><h1>HTTP Status 500 - My Custom message</h1><HR size="1" noshade="noshade"><p><b>type</b> Status report</p><p><b>message</b> <u>My Custom message</u></p><p><b>description</b> <u>The server encountered an internal error (My Custom message) that prevented it from fulfilling this request.</u></p><HR size="1" noshade="noshade"><h3>Apache Tomcat/6.0.20</h3></body></html>

Is there any method ow way I can get that custom message when AJAX call fails?


5 Years
Discussion Span
Last Post by Airshow


This may not be exactly what you want but should get you started.

First put the report HTML in a div wrapper and convert it to a template with spans in each place you want to insert text, like this:

<div id="http_report">
	<h1>HTTP Status: <span class="status"></span> - <span class="message"></span></h1>
	<hr size="1" noshade="noshade">
	<p><b>type:</b> <span class="type"></span></p>
	<p><b>message:</b> <u><span class="message"></span></u></p>
	<p><b>description:</b> <span class="description"></span></p>
	<hr size="1" noshade="noshade">
	<h3>Apache Tomcat/6.0.20</h3>

Now for the javascript:

function updateAgency(nRow){
	var url = "updateAgency.do";
	var data = {
		id: nRow.id, 
		new_code: jqInputs[0].value, 
		new_name: jqInputs[1].value
		url: url,
		data: data,
		$http_report = $("http_report").hide();
		success: function(data, textStatus, xhr) {
			$http_report.find(".status").html(xhr.status).end().find(".message").html(textStatus).end().find(".type").html(url + ": - success").end().find(".description").html('nRow.id:' + nRow.id + ' - Successfully updated').end().show();
			oTable.fnUpdate(jqInputs[0].value, nRow, 0, false);
			oTable.fnUpdate(jqInputs[1].value, nRow, 1, false);
		error: function(xhr, textStatus, thrownError) {
			var desc = "<u>The server encountered an internal error (" + thrownError + ") that prevented it from fulfilling this request.</u>";
			$http_report.find(".status").html(xhr.status).end().find(".message").html(thrownError).end().find(".type").html(url + ": - error").end().find(".description").html(desc).end().show();
			restoreRow(oTable, nRow);


As you will see, I have made an assumption about the function wrapper and the parameter passed to it.

I don't know how to do the "Apache Tomcat ... " bit dynamically so I have left it hard-coded.


Edited by Airshow: n/a


The response I am getting/capture on the Firefox is auto generated. I don't have any error page define. I am not displaying any new page for the action result.
I do edit operation in the page and display the result in the pop up box.


My code assumes that a popup div in the main window, not a popup window.

Popup divs are much easier to work with because you don't need to worry about window-window communication; all DOM elements and all javascript are in the same document, and therefore in the same global scope.

You probably just need some CSS to make my code work:

#http_report {
  position: absolute;
  left: 50px;
  top: 50px;
  padding: 5px;
  border: 2px solid #000;

With a bit more effort you can display the popup div in a modal "lightbox". Several jQuery plugins are available for this, eg. my favourite, simplemodal by Eric Martin. This is an attractive solution, which also gives you a close button.


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