First, the problem found
Create a new dynamic Web project in Eclipse, configure the local tomcat and write the code and choose Run on Server, but after running it, it is found that the project name is not present in the WebApps installation directory of Tomcat.
Second, verification
It is clear that the project was not automatically deployed to Tomcat's WebApps but was deployed in a different container. Enter http://localhost:8080/webDemo/login.jsp in the built-in browser to open normally. However, when you open http://localhost:8080 on an external browser, the desired kitten screen does not appear.
Third, Reason
Eclipse does not, like MyEclipse, deploy the project to WebApps in the Tomcat installation directory by default and is deployed to the working directory by default
In the. Metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps, the Tmp1 folder contains information about the item.
Iv. modification
In order for the project to be deployed by default to WebApps in the Tomcat installation directory, show view->servers-> find the tomcat-> that needs to be modified right-click ① Stop the Tomcat server within Eclipse (stop) ② Delete the item deployed in the container (add and remove) ③ clear the container related data (clean) ④ Open Tomcat's Modify interface
⑤ Find servers location, select the second (User tomcat installation) ⑥ Modify the Deploy path for Webapps⑦ save shutdown
It is important to note that the ①②③ must be manipulated, otherwise the following steps will be grayed out.
Eclipse deploys Web project to local tomcat but does not find a problem in WebApps