Java Spring jQuery ajax not working

Question

I have the following code

var email = document.getElementById("email").value;
    $.post("/valid",{emailadd: email},function(data){
        alert(data);
    });

on the server I have the following:

@RequestMapping(value = "/valid", method=RequestMethod.POST)
public @ResponseBody Boolean checkValidEmail(@RequestParam("emailadd") String emailadd){
    return false;
}

Using firebug I can see that var email get the value but it skips past the alert function, what am i doing wrong?

Could it be that data is empty? Try alert("Result: " + data); — Igor Nikolaev
– Igor Nikolaev, Commented Nov 10, 2011 at 22:35
Can you see any response in firebug? Show it. Add error handler to your Ajax request. Check server logs. — Igor Nikolaev
– Igor Nikolaev, Commented Nov 10, 2011 at 22:44

Manuel van Rijn · Accepted Answer · 2011-11-10 22:51:52Z

1

i think the problem is that you don't return any response. You are returning false or true, but doesn't this just stops the checkValidEmail method?

Not sure how this works within spring, but cant you render some text as output and see if that's outputted?

answered Nov 10, 2011 at 22:51

Manuel van Rijn

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2 Comments

Paul Over a year ago

Thanks that worked with a String output, any idea why the boolean value didn't get returned?

Manuel van Rijn Over a year ago

it expected to be a string/html. you could check if the post worked by setting the header on the response within your spring code an then check the statusText in your callback. function(data, statusText) the text will be "timeout", "error", "notmodified", "success" or "parsererror". See jQuery doc's for more info about statusText

Vincent Agnello · Accepted Answer · 2011-11-10 22:49:50Z

0

It looks like to me that the call hasn't completed yet, so data won't be populated. You will need to add a callback handler for complete

    var email = document.getElementById("email").value;
        $.post("/valid",{emailadd: email},
            complete: function(data){
               alert(data);
            }
    });

answered Nov 10, 2011 at 22:49

Vincent Agnello

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1 Comment

Manuel van Rijn Over a year ago

complete isn't a function for $.post is it? I thought this was only for the $.ajax function

Felix L · Accepted Answer · 2011-11-10 23:03:16Z

0

I don't see anything wrong with your code. Maybe a stupid question but are you sure that the URL is right ? What about the webapp and the controller in the path ?

As a side note : $("#email").val() would be more jQuery friendly to get the email :)

answered Nov 10, 2011 at 23:03

Felix L

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