1, use idea to create a new JSP project. Cannot run to say yes to add Tomcat directory .... Just get it done. Note that you want to add the bin directory. Actually, No.
Pre-condition: The Tomcat green version under. Direct running Tomcat7.exe or startup.bat are all flashing through. Say yes to path. (Think carefully.) This is for the browser directly can run http://localhost:8080)
In other words, the path IDE is also possible. 2, using idea to run a simple JSP page to learn a lot of things. For example, change the content in the JSP. Actually can't have effect inside. (Eclipse is possible)
The advantage of 3,eclipse is that it can be brushed casually. But with idea, it explodes port collisions.
The following is a tutorial on changing ports http://jingyan.baidu.com/article/9f63fb91d0f1b8c8400f0e1d.html
4. Such 2 projects can be run with one IDE (Idea and Eclipse) respectively.
5. I like idea very much. Unfortunately the online tutorial code is all about Eclipse projects. By the way toss it down.
Java Web Foundation (path,class_path,java_home)