Class JspServlet

java.lang.Object
javax.servlet.GenericServlet
javax.servlet.http.HttpServlet
org.apache.jasper.servlet.JspServlet
All Implemented Interfaces:
Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig
public class JspServlet extends javax.servlet.http.HttpServlet
The JSP engine (a.k.a Jasper). The servlet container is responsible for providing a URLClassLoader for the web application context Jasper is being used in. Jasper will try get the Tomcat ServletContext attribute for its ServletContext class loader, if that fails, it uses the parent class loader. In either case, it must be a URLClassLoader.
Author:
Anil K. Vijendran, Harish Prabandham, Remy Maucherat, Kin-man Chung, Glenn Nielsen
See Also:

  • Constructor Summary

    Constructors
    Constructor
    Description
    JspServlet()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    destroy()
     
    int
    getJspCount()
    Returns the number of JSPs for which JspServletWrappers exist, i.e., the number of JSPs that have been loaded into the webapp with which this JspServlet is associated.
    int
    getJspErrorCount()
    Gets the number of errors triggered by JSP invocations.
    int
    getJspReloadCount()
    Gets the number of JSPs that have been reloaded.
    void
    init(javax.servlet.ServletConfig config)
     
    void
    service(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
     
    void
    setJspReloadCount(int count)
    Resets the JSP reload counter.

    Methods inherited from class javax.servlet.http.HttpServlet

    doDelete, doGet, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service

    Methods inherited from class javax.servlet.GenericServlet

    getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

    Methods inherited from class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • JspServlet

      public JspServlet()

  • Method Details

    • init

      public void init(javax.servlet.ServletConfig config) throws javax.servlet.ServletException
      Specified by:
      init in interface javax.servlet.Servlet
      Overrides:
      init in class javax.servlet.GenericServlet
      Throws:
      javax.servlet.ServletException

    • getJspCount

      public int getJspCount()
      Returns the number of JSPs for which JspServletWrappers exist, i.e., the number of JSPs that have been loaded into the webapp with which this JspServlet is associated.

      This info may be used for monitoring purposes.

      Returns:
      The number of JSPs that have been loaded into the webapp with which this JspServlet is associated

    • setJspReloadCount

      public void setJspReloadCount(int count)
      Resets the JSP reload counter.
      Parameters:
      count - Value to which to reset the JSP reload counter

    • getJspReloadCount

      public int getJspReloadCount()
      Gets the number of JSPs that have been reloaded.

      This info may be used for monitoring purposes.

      Returns:
      The number of JSPs (in the webapp with which this JspServlet is associated) that have been reloaded

    • getJspErrorCount

      public int getJspErrorCount()
      Gets the number of errors triggered by JSP invocations.
      Returns:
      The number of errors triggered by JSP invocations

    • service

      public void service(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException, IOException
      Overrides:
      service in class javax.servlet.http.HttpServlet
      Throws:
      javax.servlet.ServletException
      IOException

    • destroy

      public void destroy()
      Specified by:
      destroy in interface javax.servlet.Servlet
      Overrides:
      destroy in class javax.servlet.GenericServlet