Tomcat file structure in Eclipse

• WebContent.
  Regular Web files (HTML, JavaScript, CSS, JSP, images, etc.)
• WebContent/some-subdirectory
  Web files in subdirectory.
• WebContent/WEB-INF
  web.xml (used for servlet mappings)
• WebContent/WEB-INF/lib
  JAR files specific to application.
• src/(default package)
  Unpackaged (default package) Java code. Using the default package is generally a bad choice in Web apps.
• src/somePackage
  Java code in somePackage package.
• Note:
  You can cut/paste or drag/drop existing files into appropriate locations, but it is hard to drag files into a Java package until you create at least one class first.