After clarifying what tasks you need to use Eclipse to complete, determine which version to use. For example, if I want to use it to complete the configuration of the Tomcat web server, I need to use the windows-->preferences-->server item inside. I can directly download the Java EE version, and the server option is directly configured in it.
Eclipse download address: http://www.eclipse.org/downloads/
Eclipse JSP/Servlet environment setup: http://www.runoob.com/jsp/eclipse-jsp.html
If the installed version does not have the server option, it can be regarded as an update on the existing basis. The operation is as follows:
1. Select Help-->Install New Software
2. Select Add in Work with:
"Kepler" repository(http://download.eclipse.org/releases/kepler)->Web,XML, Java EE and OSGi Enterprise Development ->JST Server AdaptersExtensions(打勾选上该项)
or as shown in the picture
3. Continue to select as follows:
4. Then select "Next", and then observe that a progress bar will appear in the lower right corner. After completion, you will be prompted to restart the software:
5. Then press the previous path to open to see the server option
The above steps are completed to complete the addition of the Server item.