The javax.servlet.http Package - Developing Java Servlets - page 478

The doGet() Method
protected void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException
java.io.IOException
The doGet() method services all GET requests for the servlet.
N OTE
The HttpServlet class's doGet , doPost , doPut , doDelete , doOptions , and doTrace
methods all receive the same two parameters—an HttpServletRequest object, which
encapsulates the client's request, and an HttpServletResponse object, which contains
the response that is sent back to the client. Each of these methods throws a
ServletException if it cannot service the request and throws a java.io.IOException
if there was an I/O error. These methods return no value.
The doPost() Method
protected void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException
java.io.IOException
The doPost() method services all POST requests for the servlet.
The doPut() Method
protected void doPut(HttpServletRequest request,
HttpServletResponse response)
throws ServletException
java.io.IOException
The doPut() method services all PUT requests for the servlet.
The doDelete() Method
protected void doDelete(HttpServletRequest request,
HttpServletResponse response)
throws ServletException
java.io.Exception
The doDelete() method services all DELETE requests for the servlet.