org.apache.jasper.runtime
类 HttpJspBase

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.apache.jasper.runtime.HttpJspBase

所有已实现的接口：

Serializable, HttpJspPage, JspPage, Servlet, ServletConfig

public abstract class HttpJspBase
extends HttpServlet
implements HttpJspPage

This is the super class of all JSP-generated servlets.

作者：

Anil K. Vijendran

另请参见：

序列化表格

构造方法摘要

protected

HttpJspBase()

方法摘要

protected void	_jspDestroy()
void	_jspInit()
abstract void	_jspService(HttpServletRequest request, HttpServletResponse response) The _jspService()method corresponds to the body of the JSP page.
void	destroy() Called by the servlet container to indicate to a servlet that the servlet is being taken out of service.
String	getServletInfo() Returns information about the servlet, such as author, version, and copyright.
void	init(ServletConfig config) Called by the servlet container to indicate to a servlet that the servlet is being placed into service.
void	jspDestroy() The jspDestroy() method is invoked when the JSP page is about to be destroyed.
void	jspInit() The jspInit() method is invoked when the JSP page is initialized.
void	service(HttpServletRequest request, HttpServletResponse response) Entry point into service.

从类 javax.servlet.http.HttpServlet 继承的方法

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

从类 javax.servlet.GenericServlet 继承的方法

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

从类 java.lang.Object 继承的方法

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

从接口 javax.servlet.Servlet 继承的方法

getServletConfig, service

构造方法详细信息

HttpJspBase

protected HttpJspBase()

方法详细信息

init

public final void init(ServletConfig config)
                throws ServletException

从类 GenericServlet 复制的描述

Called by the servlet container to indicate to a servlet that the servlet is being placed into service. See Servlet.init(javax.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).

指定者：

接口 Servlet 中的 init

覆盖：

类 GenericServlet 中的 init

参数：

config - the ServletConfig object that contains configutation information for this servlet

抛出：

ServletException - if an exception occurs that interrupts the servlet's normal operation

另请参见：

UnavailableException

getServletInfo

public String getServletInfo()

从类 GenericServlet 复制的描述

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().

指定者：

接口 Servlet 中的 getServletInfo

覆盖：

类 GenericServlet 中的 getServletInfo

返回：

String information about this servlet, by default an empty string

destroy

public final void destroy()

从类 GenericServlet 复制的描述

Called by the servlet container to indicate to a servlet that the servlet is being taken out of service. See Servlet.destroy().

指定者：

接口 Servlet 中的 destroy

覆盖：

类 GenericServlet 中的 destroy

service

public final void service(HttpServletRequest request,
                          HttpServletResponse response)
                   throws ServletException,
                          IOException

Entry point into service.

覆盖：

类 HttpServlet 中的 service

参数：

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

抛出：

ServletException - if the HTTP request cannot be handled

IOException - if an input or output error occurs while the servlet is handling the HTTP request

另请参见：

Servlet.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)

jspInit

public void jspInit()

从接口 JspPage 复制的描述

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.

指定者：

接口 JspPage 中的 jspInit

_jspInit

public void _jspInit()

jspDestroy

public void jspDestroy()

从接口 JspPage 复制的描述

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.

指定者：

接口 JspPage 中的 jspDestroy

_jspDestroy

protected void _jspDestroy()

_jspService

public abstract void _jspService(HttpServletRequest request,
                                 HttpServletResponse response)
                          throws ServletException,
                                 IOException

从接口 HttpJspPage 复制的描述

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.

指定者：

接口 HttpJspPage 中的 _jspService

参数：

request - Provides client request information to the JSP.

response - Assists the JSP in sending a response to the client.

抛出：

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.