servlet中实现重定向（requestDispatcher.forward）

[jsp]代码库

public void doPost ( HttpServletRequest request,HttpServletResponse response )
throws ServletException,IOException
{
	　response.setContentType ( "text/html; charset=gb2312" );
	　ServletContext sc = getServletContext();
	　RequestDispatcher rd = null;
	　rd = sc.getRequestDispatcher ( "/index.jsp" ); //定向的页面
	　rd.forward ( request, response );
}