JSP¹ýÂËÆ÷ÔÀí·ÖÎö
http://zhangjunhd.blog.51cto.com/113473/20629
1£®Servlet¹ýÂËÆ÷
1.1 ʲôÊǹýÂËÆ÷
¹ýÂËÆ÷ÊÇÒ»¸ö³ÌÐò£¬ËüÏÈÓÚÓëÖ®Ïà¹ØµÄservlet»òJSPÒ³ÃæÔËÐÐÔÚ·þÎñÆ÷ÉÏ¡£¹ýÂËÆ÷¿É¸½¼Óµ½Ò»¸ö»ò¶à¸öservlet»òJSPÒ³ÃæÉÏ£¬²¢ÇÒ¿ÉÒÔ¼ì²é½øÈëÕâЩ×ÊÔ´µÄÇëÇóÐÅÏ¢¡£ÔÚÕâÖ®ºó£¬¹ýÂËÆ÷¿ÉÒÔ×÷ÈçϵÄÑ¡Ôñ£º
¢ÙÒÔ³£¹æµÄ·½Ê½µ÷ÓÃ×ÊÔ´£¨¼´£¬µ÷ÓÃservlet»òJSPÒ³Ãæ£©¡£
¢ÚÀûÓÃÐ޸ĹýµÄÇëÇóÐÅÏ¢µ÷ÓÃ×ÊÔ´¡£
¢Ûµ÷ÓÃ×ÊÔ´£¬µ«ÔÚ·¢ËÍÏìÓ¦µ½¿Í»§»úǰ¶ÔÆä½øÐÐÐ޸ġ£
¢Ü×èÖ¹¸Ã×ÊÔ´µ÷Ó㬴úÖ®ÒÔתµ½ÆäËûµÄ×ÊÔ´£¬·µ»ØÒ»¸öÌØ¶¨µÄ״̬´úÂë»òÉú³ÉÌæ»»Êä³ö¡£
1.2
Servlet¹ýÂËÆ÷µÄ»ù±¾ÔÀí
ÔÚServlet×÷Ϊ¹ýÂËÆ÷ʹÓÃʱ£¬Ëü¿ÉÒÔ¶Ô¿Í»§µÄÇëÇó½øÐд¦Àí¡£´¦ÀíÍê³Éºó£¬Ëü»á½»¸øÏÂÒ»¸ö¹ýÂËÆ÷´¦Àí£¬ÕâÑù£¬¿Í»§µÄÇëÇóÔÚ¹ýÂËÁ´ÀïÖð¸ö´¦Àí£¬Ö±µ½ÇëÇó·¢Ë͵½Ä¿±êΪֹ¡£ÀýÈç£¬Ä³ÍøÕ¾ÀïÓÐÌá½»“Ð޸ĵÄ×¢²áÐÅÏ¢”µÄÍøÒ³£¬µ±Óû§ÌîдÍêÐÞ¸ÄÐÅÏ¢²¢Ìá½»ºó£¬·þÎñÆ÷ÔÚ½øÐд¦ÀíʱÐèÒª×öÁ½Ï×÷£ºÅжϿͻ§¶ËµÄ»á»°ÊÇ·ñÓÐЧ£»¶ÔÌá½»µÄÊý¾Ý½øÐÐͳһ±àÂë¡£ÕâÁ½Ï×÷¿ÉÒÔÔÚÓÉÁ½¸ö¹ýÂËÆ÷×é³ÉµÄ¹ýÂËÁ´Àï½øÐд¦Àí¡£µ±¹ýÂËÆ÷´¦Àí³É¹¦ºó£¬°ÑÌá½»µÄÊý¾Ý·¢Ë͵½×îÖÕÄ¿±ê£»Èç¹û¹ýÂËÆ÷´¦Àí²»³É¹¦£¬½«°ÑÊÓͼÅÉ·¢µ½Ö¸¶¨µÄ´íÎóÒ³Ãæ¡£
2£®Servlet¹ýÂËÆ÷¿ª·¢²½Öè
¿ª·¢Servlet¹ýÂËÆ÷µÄ²½ÖèÈçÏ£º
¢Ù±àдʵÏÖFilter½Ó¿ÚµÄServletÀà¡£
¢ÚÔÚweb.xmlÖÐÅäÖÃFilter¡£
¿ª·¢Ò»¸ö¹ýÂËÆ÷ÐèҪʵÏÖFilter½Ó¿Ú£¬Filter½Ó¿Ú¶¨ÒåÁËÒÔÏ·½·¨£º
¢Ùdestory£¨£©ÓÉWebÈÝÆ÷µ÷Ó㬳õʼ»¯´ËFilter¡£
¢Úinit£¨FilterConfig filterConfig£©ÓÉWebÈÝÆ÷µ÷Ó㬳õʼ»¯´ËFilter¡£
¢ÛdoFilter£¨ServletRequest request,ServletResponse response,FilterChain chain£©¾ßÌå¹ýÂË´¦Àí´úÂë¡£
3£®Ò»¸ö¹ýÂËÆ÷¿ò¼ÜʵÀý
SimpleFilter1.java
package com.zj.sample;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
public class SimpleFilter1 implements Filter {
@SuppressWarnings("unused")
private FilterConfig filterConfig;
public void
Ïà¹ØÎĵµ£º
<%
response.setHeader("Pragma","No-cache");
response.setHeader("Cache-Control","no-cache");
response.setDateHeader("Expires", 0);
%>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http- ......
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
</filter>
<filter-mapping>
<filter-name>strut ......
ÓÃJSP¹¹½¨¶¯Ì¬ÍøÕ¾ ËïÒÔÒå ¶Å¾é
Ò»¡¢ ʲôÊÇJSP JSP(JavaServer Pages)ÊÇÓÉSun Microsystems¹«Ë¾³«µ¼¡¢Ðí¶à¹«Ë¾²ÎÓëÒ»Æð½¨Á¢µÄÒ»ÖÖ¶¯Ì¬ÍøÒ³¼¼Êõ±ê×¼£¬ÆäÍøÖ·Îª
http://www.javasoft.com/products/jsp¡£ ÔÚ´«Í³µÄÍøÒ³HTMLÎļþ(*.htm,*.html)ÖмÓÈëJava³ÌÐòƬ¶Î(Scriptlet)ºÍJSP±ê¼Ç(tag)£¬¾Í¹¹
³ÉÁËJSPÍøÒ³(*.jsp)¡£Web· ......
×î»ù±¾µÄÂÒÂëÎÊÌâ
Õâ¸öÂÒÂëÎÊÌâÊÇ×î¼òµ¥µÄÂÒÂëÎÊÌâ¡£Ò»°ãлá³öÏÖ¡£¾ÍÊÇÒ³Ãæ±àÂë²»Ò»Öµ¼ÖµÄÂÒÂë¡£
<%@ page language="java" pageEncoding="UTF-8"%>
<%@ page contentType="text/html;charset=iso8859-1"%>
<html>
<head>
<title>ÖÐÎÄÎÊÌâ</title>
<meta http-equiv="Co ......