GWT Servlet error com.google.gwt.user.client.rpc .StatusCodeException: 404 on Tomcat server

Question

1) Installed GWT and Eclipse on Mac

2) Created a GWT project (2.4) with generated code called Hello

3) Ran the project on local computer (in dev mode) and it works as expected.

4) Compile the project and upload the war directory to my account hosted by serversanddomains.com

The production front end works fine, but when I try the RPC request I get the following error.

com.google.gwt.user.client.rpc.StatusCodeException: 404 Not Found The requested URL /hello/greet was not found on this server.

I tried compiling with different versions of java as suggest by How to use GWT - RPC to Tomcat server

Serversanddomains.com currently runs Tomcat and java 1.6.0_29

I asked to see the error log and they responded Here is the error we are seeing in the error log: File does not exist: /home/username/public_html/hello/greet, referer: http://mydomain.com/Hello.html And in the /usr/local/jakarta/tomcat/logs/catalina.out log file no reports of anything.

My web.xml file is:

<?xml version="1.0" encoding="UTF-8"?>
<web-app 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_2_5.xsd"
version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee">


  <!-- Servlets -->
  <servlet>
    <servlet-name>greetServlet</servlet-name>
    <servlet-class>com.hello.server.GreetingServiceImpl</servlet-class>
  </servlet>

  <servlet-mapping>
    <servlet-name>greetServlet</servlet-name>
    <url-pattern>/hello/greet</url-pattern>
  </servlet-mapping>

  <!-- Default page to serve -->
  <welcome-file-list>
    <welcome-file>Hello.html</welcome-file>
  </welcome-file-list>

</web-app>

Any suggests would be welcome.

Cheers

Strelok · Accepted Answer · 2012-03-14 03:06:13Z

1

As a rule of thumb, shared hosting accounts are usually just apache virtual hosts. Apache is just a web server. To host a GWT app that uses RPC, you need an application server, like Tomcat, Jetty (used by GWT Dev Mode), GlassFish and others.

You will NEVER be able to do that from a shared hosting account, because it's just not possible. You need to get a VPS dedicated server and set everything up yourself, usually.

answered Mar 14, 2012 at 3:06

Strelok

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1 Comment

user1256378 Over a year ago

Thank you, I contacted the provider and you are correct. I will have to update the package I have. Cheers

Riley Lark · Accepted Answer · 2012-03-13 20:47:56Z

0

It looks like your server is not set up to be a servlet container. It does not know how to serve /hello/greet, which your GWT app defines in web.xml.

You should ask your host if they offer hosting that supports this sort of java servlet environment.

answered Mar 13, 2012 at 20:47

Riley Lark

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1 Comment

user1256378 Over a year ago

Thank you Riley, I just sent a ticket to serversanddomains.com and will let you know the response.

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