在带有eclipse的tomcat servlet中不起作用

Question

I have installed tomcat with eclipse and I have a project with a servlet. Here I put the structure of both:

Until this day the steps followed to run the servlet were:

1.Press button right above the following and give "Start" Tomcat

2.Once booted, press right button over "UsuarioServlet.java" / Run as / Run on server

Done that everything worked properly but suddenly today when doing so I get the following:

What happened?.

Answer 1

I had this problem recently.

Here is what helped me. Start tomcat and search in the console the real path where your tomcat is running. Go there and open conf/server.xml . The plug-in that integrates tomcat and eclipse adds one long line there. Scroll down to see it. Here is how this line looks on my machine.

  <Context docBase="C:\workspaces\work7\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\ROOT" path="" reloadable="false"/><Context debug="0" docBase="C:\workspaces\work7\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\webapp" path="/mycompany-webapp-0.9-SNAPSHOT" reloadable="true" source="org.eclipse.jst.jee.server:webapp">
<Valve className="org.apache.catalina.valves.AccessLogValve" pattern="common" prefix="access_log." suffix=".txt"/>

Please pay attention on path attribute. It used to be /webapp but now it became /mycompany-webapp-0.9-SNAPSHOT . So, this is the real URL where the application is deployed.

I used to surf to my application using url http://localhost:8080/webapp . Now I have to use http://localhost:8080/mycompany-webapp-0.9-SNAPSHOT . Alternatively I can stop server, fix the path in server.xml manually, start server and use the "old" URL.

The point is that this behavior is not consistent. Sometimes (when project settings are being changed) this problem is fixed "automatically" but sometimes it returns. It happened not only on my machine but on computers of 2 other team members in company where I work.

I hope this information will help you. Good luck.