Class HttpJspBase

java.lang.Object
jakarta.servlet.GenericServlet
jakarta.servlet.http.HttpServlet
org.apache.jasper.runtime.HttpJspBase
All Implemented Interfaces:
HttpJspPage, JspPage, Servlet, ServletConfig, Serializable
public abstract class HttpJspBase extends HttpServlet implements HttpJspPage
This is the super class of all JSP-generated servlets.
Author:
Anil K. Vijendran
See Also:

  • Constructor Details

    • HttpJspBase

      protected HttpJspBase()

  • Method Details

    • init

      public final void init(ServletConfig config) throws ServletException
      Description copied from class: jakarta.servlet.GenericServlet
      Called by the servlet container to indicate to a servlet that the servlet is being placed into service. See Servlet.init(jakarta.servlet.ServletConfig).

      This implementation stores the ServletConfig object it receives from the servlet container for later use. When overriding this form of the method, call super.init(config).

      Specified by:
      init in interface Servlet
      Overrides:
      init in class HttpServlet
      Parameters:
      config - the ServletConfig object that contains configuration information for this servlet
      Throws:
      ServletException - if an exception occurs that interrupts the servlet's normal operation
      See Also:

    • getServletInfo

      public String getServletInfo()
      Description copied from class: jakarta.servlet.GenericServlet
      Returns information about the servlet, such as author, version, and copyright. By default, this method returns an empty string. Override this method to have it return a meaningful value. See Servlet.getServletInfo().
      Specified by:
      getServletInfo in interface Servlet
      Overrides:
      getServletInfo in class GenericServlet
      Returns:
      String information about this servlet, by default an empty string

    • destroy

      public final void destroy()
      Description copied from class: jakarta.servlet.GenericServlet
      Called by the servlet container to indicate to a servlet that the servlet is being taken out of service. See Servlet.destroy().
      Specified by:
      destroy in interface Servlet
      Overrides:
      destroy in class GenericServlet

    • service

      public final void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
      Description copied from class: jakarta.servlet.http.HttpServlet
      Receives standard HTTP requests from the public service method and dispatches them to the doMethod methods defined in this class. This method is an HTTP-specific version of the Servlet.service(jakarta.servlet.ServletRequest, jakarta.servlet.ServletResponse) method. There's no need to override this method.
      Overrides:
      service in class HttpServlet
      Parameters:
      request - the HttpServletRequest object that contains the request the client made of the servlet
      response - the HttpServletResponse object that contains the response the servlet returns to the client
      Throws:
      ServletException - if the HTTP request cannot be handled
      IOException - if an input or output error occurs while the servlet is handling the HTTP request
      See Also:

    • jspInit

      public void jspInit()
      Description copied from interface: jakarta.servlet.jsp.JspPage
      The jspInit() method is invoked when the JSP page is initialized. It is the responsibility of the JSP implementation (and of the class mentioned by the extends attribute, if present) that at this point invocations to the getServletConfig() method will return the desired value.

      A JSP page can override this method by including a definition for it in a declaration element.

      A JSP page should redefine the init() method from Servlet.

      Specified by:
      jspInit in interface JspPage

    • _jspInit

      public void _jspInit()

    • jspDestroy

      public void jspDestroy()
      Description copied from interface: jakarta.servlet.jsp.JspPage
      The jspDestroy() method is invoked when the JSP page is about to be destroyed.

      A JSP page can override this method by including a definition for it in a declaration element.

      A JSP page should redefine the destroy() method from Servlet.

      Specified by:
      jspDestroy in interface JspPage

    • _jspDestroy

      protected void _jspDestroy()

    • _jspService

      public abstract void _jspService(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
      Description copied from interface: jakarta.servlet.jsp.HttpJspPage
      The _jspService()method corresponds to the body of the JSP page. This method is defined automatically by the JSP container and should never be defined by the JSP page author.

      If a superclass is specified using the extends attribute, that superclass may choose to perform some actions in its service() method before or after calling the _jspService() method. See using the extends attribute in the JSP_Engine chapter of the JSP specification.

      Specified by:
      _jspService in interface HttpJspPage
      Parameters:
      request - Provides client request information to the JSP.
      response - Assists the JSP in sending a response to the client.
      Throws:
      ServletException - Thrown if an error occurred during the processing of the JSP and that the container should take appropriate action to clean up the request.
      IOException - Thrown if an error occurred while writing the response for this page.