When learning, sometimes you need to create a new project, write some java code, and prepare to write the web part, eh? What about my WebContent? Then I found myself building the wrong project. So, go ahead and create a new one. Copy the written part of the code. Very stupid!
In fact, there is a very easy way to convert an ordinary project into a web project.
Here is the normal project:
1. Right-click to open the project properties Properties: shortcut key (alt+enter)
2. Select Project Facets.
3. Select Convert to Facets to form.
4. Select " Dynamic Web Module " and " Java ", check the version you need.
5. At this point, click OK (Eclipse will generate files corresponding to the web project under the "WebContent" folder by default (for example: WEB-INF, web.xml).
If you need to change the path of these files, you can click " further configuration available... "
6. You can change the path, remember to let it generate web.xml. Don't wait to build it yourself.
7. Done. I did not change the path to store: WEB-INF, web.xml, or the default. Then the structure is the same as the web project we built.
*There may be a wrong version of Dynamic Web Module , so please change the version. I just ran into it, but changing a version will do.