ajax calling the wrong servlet

Question

weird problem here I can't seem to solve.

I'm working in Eclipse Java EE, I have a servlet called Process (mapped to /process)

There is a link to process

<a href="process?intent=order">Checkout</a>

Within process is a doGet method, verifying there is a user logged in, which redirects to a checkout page. (this works) The checkout page contains items, each with an individual input, and I have a seperate doPost method which updates the DB.. obtaining the input to update as follows

<input id='ID created in servlet' value='decided in servlet'>

followed by

<button id="update">Button</button>

I have the following JS

  var json = [];
  $('#update').click(function(){
   $('.items').find('input').each(function(){
     var tmp = "{id:" + $(this).attr('id') + ",quantity:" + $(this).val() + "}";
     json.push(tmp);
   });

    $.ajax( {
     url : 'process',
     type : 'POST',
     data : json,
     dataType : 'json',
     success: function(data) {
             alert("success");
     }
 });

});

So, two questions I guess.

First, this is sending a request to a different servlet, in a different project. However when accessed using a doGet, it works. (I have different code for a doPost) Is there any reason it's not recognizing the doPost method within my Process.java file? What could cause it to search for another servlet?

Second, I know what to do once I get the data in the servlet, but I don't know how to actually access the data. It's passed through jquery in 'data:', then how would I access it in the servlet?

Is your javascript code in another file in a different path? — Alexandre Lavoie, Nov 26 '13 at 10:01
I tried url:'projectName/process' to no avail. It still calls process in the other project. @AlexandreLavoie The js is in — brdu, Nov 26 '13 at 10:17
What Aman is telling, is that you are using relative path, so the call is relative to the current URL. You can change `url : 'process'` by `url : '/your-context-path/process'` and replace with the right path. — Alexandre Lavoie, Nov 26 '13 at 10:20
What is the name of the project ? The name which you gave in Eclipse ?Read through the answer which i have just posted. It should help i guess :) — Aman Arora, Nov 26 '13 at 10:22

score 1 · Accepted Answer · edited May 23 '17 at 12:13

First Question:
If i have understood right, Your problem is that "when you try to send a post request using AJAX (inside a jquery function), you are not hitting the desired servlet".
Solution:
You need to append the name of your project to the url. So lets say your servlet is placed in project named "SomeProject" and the servlet is mapped to url named "servletProcess". So your jQuery should look something like this:

var json = [];
  $('#update').click(function(){
   $('.items').find('input').each(function(){
     var tmp = "{id:" + $(this).attr('id') + ",quantity:" + $(this).val() + "}";
     json.push(tmp);
   });

$.ajax( {
 url : '/SomeProject/servletProcess',
 type : 'POST',
 data : json,
 dataType : 'json',
 success: function(data) {
         alert("success");
 }

  });

});

This should fix the problem :)
Second Question: try this Similar Query

It is, as soon as I used url:'/MyProject/process' it worked. What's weird is I tried that before, but it didn't work. I exited all other projects that were currently synchronized under the server, tried again and it still reloaded the foreign servlet. So I changed the URL to what you suggested and it worked. Thanks again! I'd upvote if I could!! — brdu, Nov 26 '13 at 10:51

ajax calling the wrong servlet

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