The web project problems encountered are sorted, the default index.jsp of the java web project is the welcome page and the problem of not loading the jar

1. Sort out the web project problems encountered. The default index.jsp of the java web project is the welcome page, which can be modified in <welcome> in web.xml.

2. Sometimes the project startup speed is very fast, about 400ms. In this case, it is very likely that the jar package has not been loaded. You can view and change it in the deployment Assembly.