在Netbeans 7.3中配置Java HTTP Servlet

Question

I've recently upgraded to Netbeans 7.3, and I quite don't get much of its project configuration and interface. For example, once I used to see the source packages with java classes, now I'm not able to see them only in the File panel. I have a package called batchUtility containing an HTTP servlet called batchQueryServlet.

I have to post a JSON to batchQueryServlet via the jQuery.ajax() function and I'm not able to map the servlet.

Since Netbeans 7.3 doesn't ship a config file, I've created one by myself clicking on the web-inf folder>new>web.xml file and wrote as follows:

<web-app xmlns="http://java.sun.com/xml/ns/javaee"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
     version="3.0">
<welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
  <servlet>
    <servlet-name>batchQueryServlet</servlet-name>
    <servlet-class>/batchUtility.batchQueryServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>batchQueryServlet</servlet-name>
    <url-pattern>/batchQueryServlet</url-pattern>
  </servlet-mapping>
</web-app>

but still, when issuing the request, I get a 404 error:

  $.ajax({
                            url: "/batchQueryServlet",
                            contentType: 'application/json',
                            data: json,
                            Accept: "text/html",
                            success: function(data, textStatus, jqXHR) {
                                alert(data);
                            },
                            type: "POST"
                        });

Now, I'm pretty sure it doesn't find the class because if I call the servlet name I get a classNotFound exception. How could I fix that? (A quick and dirty solution would be using a JSP but I'd rather not do it).

PS: I use version 7.0.34 of Tomcat.

EDIT The problem was I should use a proper src/java path for storing my .java classes instead of a plain folder (this is the reason I couldn't see the packages). Now I've fixed it. Thanks anyway for your time!

Answer 1

You have a leading slash in

<servlet-class>/batchUtility.batchQueryServlet</servlet-class>

Remove it and things should work.

Change your Ajax url: to either "batchQueryServlet" or "/web-app-name/batchQueryServlet"

EDIT :

Once deployed your web application's folder structure should be like: ( / indicates a directory)

tomcat-home/
 |- webapps/
   |- BatchWebApp/ //<-- Context-Root (Web-app's name)
     |- *.html, *.jsp etc.
     |- WEB-INF/
        |- web.xml
        |- lib/
          |- *.jar files
        |- classes/ //<-- ALL your servlets go here
          |- batchUtility/ //<-- with the required package/folder structure
            |- batchQueryServlet.class

If you're using an IDE (like Eclipse) it does the same for you.