Requested resource not available - can not find servlet

Question

I have an application in tomcat that uses jsp and servlets. The JSP works fine, but I keep getting a "requested resource not available" erroe when i try to access a servlet. My jsp is in a directory called ProjectManager, and my servlet classes are in WEB-INF/classes inside ProjectManager and are in a package called pmt.
I can access my jsp using localhost:8080/ProjectManager/index.jsp, but I cannot seem to access the servlets, regardless of the URL I try. I've tried adding a servlet-name and a servlet-mapping in the web.xml file but I'm still stuck.
Does anybody have any ideas?
Thanks in advance.

Answer 1

What jar files should be in the library? I have the following:
commons-lang-2.4(2).jar
mysqlconnector-java-5.1.6.bin.jar
webserviceutils.jar
Here is my web.xml as I too am getting "the request resource....cannot be found:
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
     <display-name>
     classBlog</display-name>
     <servlet>
          <description>
          </description>
          <display-name>
          DriverServlet</display-name>
          <servlet-name>DriverServlet</servlet-name>
          <servlet-class>
          edu.ec.web.classBlog.DriverServlet</servlet-class>
     </servlet>
     <servlet>
          <description>
          </description>
          <display-name>
          AddEntityServlet</display-name>
          <servlet-name>AddEntityServlet</servlet-name>
          <servlet-class>
          com.ec.blog.web.AddEntityServlet</servlet-class>
     </servlet>
     <servlet>
          <description>
          </description>
          <display-name>
          DeleteEntityServlet</display-name>
          <servlet-name>DeleteEntityServlet</servlet-name>
          <servlet-class>
          com.ec.blog.web.DeleteEntityServlet</servlet-class>
     </servlet>
     <servlet>
          <description>
          </description>
          <display-name>
          EditEntityServlet</display-name>
          <servlet-name>EditEntityServlet</servlet-name>
          <servlet-class>
          com.ec.blog.web.EditEntityServlet</servlet-class>
     </servlet>
     <servlet>
          <description>
          </description>
          <display-name>
          ViewBlogServlet</display-name>
          <servlet-name>ViewBlogServlet</servlet-name>
          <servlet-class>
          com.ec.blog.web.ViewBlogServlet</servlet-class>
     </servlet>
     <servlet>
          <description>
          </description>
          <display-name>
          ViewEntityServlet</display-name>
          <servlet-name>ViewEntityServlet</servlet-name>
          <servlet-class>
          com.ec.blog.web.ViewEntityServlet</servlet-class>
     </servlet>
     <servlet>
          <description>
          </description>
          <display-name>
          AddEntryServlet</display-name>
          <servlet-name>AddEntryServlet</servlet-name>
          <servlet-class>
          com.ec.blog.web.AddEntryServlet</servlet-class>
     </servlet>
     <servlet>
          <description>
          </description>
          <display-name>
          DeleteEntryServlet</display-name>
          <servlet-name>DeleteEntryServlet</servlet-name>
          <servlet-class>
          com.ec.blog.web.DeleteEntryServlet</servlet-class>
     </servlet>
     <servlet>
          <description>
          </description>
          <display-name>
          EditEntryServlet</display-name>
          <servlet-name>EditEntryServlet</servlet-name>
          <servlet-class>
          com.ec.blog.web.EditEntryServlet</servlet-class>
     </servlet>
     <servlet>
          <description>
          </description>
          <display-name>
          ViewEntryServlet</display-name>
          <servlet-name>ViewEntryServlet</servlet-name>
          <servlet-class>
          com.ec.blog.web.ViewEntryServlet</servlet-class>
     </servlet>
     <servlet-mapping>
          <servlet-name>DriverServlet</servlet-name>
          <url-pattern>/DriverServlet</url-pattern>
     </servlet-mapping>
     <servlet-mapping>
          <servlet-name>AddEntityServlet</servlet-name>
          <url-pattern>/AddEntityServlet</url-pattern>
     </servlet-mapping>
     <servlet-mapping>
          <servlet-name>DeleteEntityServlet</servlet-name>
          <url-pattern>/DeleteEntityServlet</url-pattern>
     </servlet-mapping>
     <servlet-mapping>
          <servlet-name>EditEntityServlet</servlet-name>
          <url-pattern>/EditEntityServlet</url-pattern>
     </servlet-mapping>
     <servlet-mapping>
          <servlet-name>ViewBlogServlet</servlet-name>
          <url-pattern>/ViewBlogServlet</url-pattern>
     </servlet-mapping>
     <servlet-mapping>
          <servlet-name>ViewEntityServlet</servlet-name>
          <url-pattern>/ViewEntityServlet</url-pattern>
     </servlet-mapping>
     <servlet-mapping>
          <servlet-name>AddEntryServlet</servlet-name>
          <url-pattern>/AddEntryServlet</url-pattern>
     </servlet-mapping>
     <servlet-mapping>
          <servlet-name>DeleteEntryServlet</servlet-name>
          <url-pattern>/DeleteEntryServlet</url-pattern>
     </servlet-mapping>
     <servlet-mapping>
          <servlet-name>EditEntryServlet</servlet-name>
          <url-pattern>/EditEntryServlet</url-pattern>
     </servlet-mapping>
     <servlet-mapping>
          <servlet-name>ViewEntryServlet</servlet-name>
          <url-pattern>/ViewEntryServlet</url-pattern>
     </servlet-mapping>
     <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>
</web-app>