Tomcat7 giving HTTP 404 ERROR while running the jsp file - eclipse

Question

I am having 404 error in the maven web-app project. I am using tomcat in the port 8081,
The web.xml is as below;
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<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_2_5.xsd"
version="2.5">
<display-name>testProject</display-name>
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/mvc-dispatcher-servlet.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
Do anybody have any Idea what might be wrong with the projects. I have other projects in my eclipse and they work. Also I tried to use jBoss but the error is same. I thing some kind of configuration is left out and I could not figure what.
Thank You in advance.

Answer 1

In your ScreenShot the red X on the project mean that eclipse found some error in your project. Often eclipse will not compile or deploy as long as there exist a serious error.
So fix the problem first, and then retry.

Answer 2

Beside what Ralph suggested to check any possible build errors, you may also try moving your JSP page to src/main/webapp directory, and then in the project setting make sure that the web deployment assembly has the correct mapping. As an example, your src/main/webapp directory should be mapped to web context root / as shown the following example setting