Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Pass mesage from servlet to ajax in case of error

Posted on 2014-03-08
3
Medium Priority
?
1,059 Views
Last Modified: 2014-03-18
hi,

I am using ajax to insert a record in database through Servlet.
Record get inserted properly.
the problem is how to send the exception messages in the ajax method so that appropriate  can be displayed to user in case exception occurs?
             
$.ajax({
                         type: 'post',
                         url: 'registdata',
                         data: $('#registdataform').serialize(),
                         success: function (data) {
                              // $("#form")[0].reset();
                               alert("sucess");
                         },
                         error: function(data) {
                             // check status && error

                             
                          },
                             
                         });

how to pass message through servlet in  ajax?
0
Comment
Question by:Rocking
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 21

Expert Comment

by:Amitkumar Panchal
ID: 39915235
You can send the response with error code as well as error message and display it in the alert box.

For example:
Message code 0 (Successful)
Message code 1 (Error 1)
Message code 2 (Error 2)
and so on
0
 

Author Comment

by:Rocking
ID: 39915396
i have set the response.setStatus(500); but how to get the status on the ajax call?
An exception occurs at server side and i set the above status manually then how to retrieve in ajax call i.e in data or in success?

Because in one type of exception it goes in error and for another type exception it goes in success block? I am unable to understand why is it so?
0
 
LVL 21

Accepted Solution

by:
Amitkumar Panchal earned 1500 total points
ID: 39916015
In any case, you should sent response with success status only. But, the response should contain at least two values: 1. result code, 2. result message and 3. data (optional).

This is how we should drive. Don't jump into various code of servlet api. Ideally, we should use it, but it make GUI more complicated.
0

Featured Post

Hire Technology Freelancers with Gigs

Work with freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely, and get projects done right.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Java functions are among the best things for programmers to work with as Java sites can be very easy to read and prepare. Java especially simplifies many processes in the coding industry as it helps integrate many forms of technology and different d…
A solution for Fortify Path Manipulation.
Viewers will learn about if statements in Java and their use The if statement: The condition required to create an if statement: Variations of if statements: An example using if statements:
Viewers will learn about the regular for loop in Java and how to use it. Definition: Break the for loop down into 3 parts: Syntax when using for loops: Example using a for loop:
Suggested Courses

704 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question