javax.servlet.http package

Javax.servlet.http package provides http specific classes and Interfaces of servlet API. Commonaly used members of this package are:-

1.      HttpServletRequest:-  This Inetrface extends ServletRequest and adds http specific methods.

2.      HttpServletResponse:-  This Interface extends ServletResponse and adds http specific methods.

3.      HttpServlet:- It is a helper class with extends GenericServlet and provides methods for each http specific method is used super class.

doGet() and doPost() are two commonly used methods.

They are use to process http get and post process respectively.

public void doGet(HttpServletRequest request,HttpServletResponse response);

public void doPost(HttpServletRequest request,HttpServletResponse response);

public void doPut(HttpServletRequest request,HttpServletResponse response);

public void doDelete (HttpServletRequest request,HttpServletResponse response);

public void doHead (HttpServletRequest request,HttpServletResponse response);

public void doTrace(HttpServletRequest request,HttpServletResponse response);

public void doOptions(HttpServletRequest request,HttpServletResponse response);

public void doConnect(HttpServletRequest request,HttpServletResponse response);