Jsp±àÂë¹æ·¶
Jsp±àÂë¹æ·¶
1.1 Îļþºó׺(File Suffixes)
ÎļþÀà±ð ¡¡¡¡ ¡¡¡¡¡¡¡¡¡¡Îļþºó׺
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JavaÔ´Îļþ¡¡¡¡¡¡¡¡¡¡¡¡¡¡.java
Java×Ö½ÚÂëÎļþ¡¡¡¡¡¡¡¡¡¡.class
¶¯Ì¬Ò³Ãæ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡.jsp
¾²Ì¬Ò³Ãæ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡.html
½Å±¾Îļþ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡.js
1.2 ³£ÓÃÎļþÃû(Common File Names)
ÎļþÃû ¡¡¡¡¡¡ ¡¡¡¡¡¡¡¡¡¡¡¡ ÓÃ;
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README¡¡¡¡¡¡¡¡¡¡¡¡ ¸ÅÊöÌØ¶¨Ä¿Â¼ÏÂËùº¬ÄÚÈݵÄÎļþµÄÊ×Ñ¡ÎļþÃû
2 Ëõ½øÅŰæ(Indentation)
4¸ö¿Õ¸ñ³£±»×÷ΪËõ½øÅŰæµÄÒ»¸öµ¥Î»¡£Ëõ½øµÄÈ·ÇнâÊͲ¢Î´Ïêϸָ¶¨(¿Õ¸ñ vs. ÖÆ±í·û)¡£Ò»¸öÖÆ±í·ûµÈÓÚ8¸ö¿Õ¸ñ(¶ø·Ç4¸ö)¡£
3 ×¢ÊÍ(Comments)
Jsp³ÌÐòÓÐÁ½Àà×¢ÊÍ£º¾²Ì¬Ò³Ãæ×¢ÊͺÍJava×¢ÊÍ.
¾²Ì¬Ò³Ãæ×¢ÊÍ: <!— express -->
Jsp×¢ÊÍ: <%-- express --%>
4 JspÓï·¨(Syntax)
¢Ù JSP Element ¡¡¡¡¡¡¡¡
¢Ú Syntax ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡
¢Û Interpretation
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¢Ù JSP Expression
¢Ú <%= expression %>
¢Û Expression is evaluated and placed in output.
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¢Ù JSP Scriptlet
¢Ú <% code %>
¢Û Code is inserted in service method.
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¢Ù JSP Declaration
¢Ú <%! code %>
¢Û Code is inserted in body of servlet class, outside of service method.
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¢Ù JSP page Directive
¢Ú <%@ page att="val" %>
¢Û Directions to the servlet engine about eneral setup.
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¢Ù JSP include Directive
¢Ú <%@ include file="url" %>
¢Û A file on the local system to be included when the JSP page is translated into a servlet.
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¢Ù The
Ïà¹ØÎĵµ£º
<body style="height:100%;">
-------------------------------------------------------------------Ò»¿ªÊ¼µÄÒ³Ãæ----------------------
fdasfsdfadf
<input name="button2" onclick="ShopConfirm('fdsaf')" value="µãÎÒ" type="button"/>
--------------------------------------------------------- ......
JSPÒ³ÃæÌø×ª´óÈ«
JSPÖеÄÌø×ª£º
(1). forward()·½·¨
ʹÓõ½javax.servlet.RequestDispatcherÀà
RequestDispatcher rd = getServletContext().getRequestDispatcher("url");
rd.forward(requestVar,requestVar); //´«µÝservletµÄÈë¿Ú²ÎÊý
......
JspÒ³ÃæÔÚURLÖд«µÝ²ÎÊý»á³öÏÖÂÒÂë
½â¾ö·½·¨ÈçÏ£º
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1¡¢À´µ½tomcatĿ¼£¬ÕÒµ½confĿ¼ÏµÄserver.xmlÎʼۣ¬´ò¿ª£¬ÕÒµ½<Connector>±êÇ©£¬ÔÚ×îºóÌí¼ÓURIEncoding=’GBK’£¬Ð ......
ÀÊÎÖ½ÌÓý³É¶¼¼ÆËã»úÅàѵ-JSPƪ
J2EE(Java 2 Enterprise Edition)¼¼ÊõÒѹ㷺ӦÓÃÔÚWebÓ¦Óÿª·¢ÖУ¬ÆäÖеÄJavaBean¡¢Servlet¼¼ÊõΪ¿ª·¢ÕßÌṩÁ˸üΪÇåÎúµÄ¿ª·¢»·¾³£¬Ê¹ÓÃJSP¼¼Êõ±íÏÖÒ³Ãæ£¬Ê¹ÓÃServlet¼¼ÊõÍê³É´óÁ¿µÄÒµÎñ´¦Àí£¬Ê¹ÓÃBeanÀ´´æ´¢Êý¾Ý¼°Ò»Ð©ÒµÎñ´¦Àí¡£ÔÚWEBÓ¦ÓÃÖУ¬ÒµÎñÊý¾Ý´æ´¢µ½Êý¾Ý¿âÖеĴ¦Àí¹¤×÷¾³£ºÜ·±ÖØ£¬ ......
index.jsp
<%@ page language="java" import="java.sql.*" import="java.lang.*" import="java.util.*" pageEncoding="GB2312"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%!
& ......