Simple RESTful client using Jquery error

Question

I have problem in callback function in jquery.

lets start from the beginning. My restful web service url is this

http://localhost :35055/new/webresources/generic/1

and it will return

{'name':'get', 'age':58}

and my jquery to interact with this web service is

$(document).ready(function() {
    $.ajax({
        dataType: "json",
        url: '/webresources/generic/1',
        type: 'GET',
        data: ' ',
        success: function() {
            alert('PUT completed');
        }
    });
});

which is linked in the jsp page

http://localhost:35055/new/tool.jsp

there is no alert message. Please suggest me a way and also debug this code please.

this is the restful webservice

    @GET
    @Produces("application/json")
    public String getJson( @PathParam("venki") int empno ) {
        if(empno==1)
        {
      return "{'name':'get', 'age':'58' }";
        }
        return "{'name':'error', 'age':'58' }";
        }

}

F12 in chrome, and read the doc to know all the options available !!! — mpm, Mar 16 '14 at 15:54
@keune hi, i tried both...not working...the webservice in get method..even it works for normal form posting....but, not using jquery... — itsme, Mar 16 '14 at 15:56
The json response body is not legal JSON. use **double quote** please. — shawnzhu, Mar 16 '14 at 16:19
@shawnzhu bro...i updated the coding..see, if i change double quote, then it shows errors. — itsme, Mar 16 '14 at 16:26

score 1 · Answer 1 · answered Mar 16 '14 at 16:05

1

You can expose the error through the error property of the $.ajax call if you aren't familiar with using Fiddler or the built in browser tools to inspect network traffic.

$(document).ready(function() {
    $.ajax({
        dataType: "json",
        url: '/new/webresources/generic/1',
        type: 'GET',
        data: ' ',
        success: function() {
            alert('PUT completed');
        },
        error: function (xhr, ajaxOptions, thrownError) {
            alert(xhr.status);
            alert(thrownError);
          }
    });
});

answered Mar 16 '14 at 16:05

Scott

13,735
20
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thank you so much...it returns some error...its says....200, SyntaxError: JSON.parse: expected property name or '}' – itsme Mar 16 '14 at 16:08
You most likely need to look at the JSON you're sending back from the service to make sure it's well formed. – Scott Mar 16 '14 at 16:18
thank you so much @Scott for the help. this is the coding is very useful for me to find the exact error. – itsme Mar 16 '14 at 16:42

score 0 · Accepted Answer · edited May 23 '17 at 12:31

0

Retry by correcting url setting value to '/new/webresources/generic/1' like this:

$.ajax({
  url: '/new/webresources/generic/1', 
  success: function() { alert('PUT completed'); }
});

According to your updated Java code of web service implementation, you should refer to answer of How correctly produce JSON by RESTful web service to find the correct java code.

edited May 23 '17 at 12:31

Community

1
1

answered Mar 16 '14 at 15:58

shawnzhu

7,233
4
35
51

did you see any network traffic under network tab of development tool on chrome or firefox? – shawnzhu Mar 16 '14 at 16:02
network traffic??? no, i didn't do it bro..actually, what is the use of this in this problem.. – itsme Mar 16 '14 at 16:05
settings like `type` or `data` can be ignored if you do want to perform action **GET**. – shawnzhu Mar 16 '14 at 16:05
you can paste the javascript code into _Console_ tab of dev tool of chrome, and it should work. – shawnzhu Mar 16 '14 at 16:07
error code 200, SyntaxError: JSON.parse: expected property name or '}' do u have any idea bro – itsme Mar 16 '14 at 16:10

Simple RESTful client using Jquery error

2 Answers2