5ÔÂ19ÈÕ JSP»ù´¡
1.essionÄڵĴæ·ÅµÄÊǶÔÏóµÄÒýÓÃ,ËùÒÔÐÞ¸ÄÄÚÖöÔÏóºó,²»ÐèÒªÖØÐ·ÅÖõ½sessionÖÐ
2.ÅäÖÃContext³õʼ»¯²ÎÊý
<Context-param>
<param-name></paran-name>
<param-value></param-value>
<Context-param>
this.getServletContext().getInitParameter(arg0);
-----------------------------------------------------------------------------------------------------------------
3.ÅäÖÃservlet³õʼ»¯²ÎÊý
<init-param>
<param-name></param-name>
<param-value></param-value>
</inti-param>
ServletConfig config=this.getServletConfig();
config.getParameter("");
-----------------------------------------------------------------------------------------------------------------
4ÅäÖÃÎļþ properties
¸ñʽ: key=value ÆäÖÐkey²»±ä valueÊDZ仯µÄ
ÀýÈç: #ÆäÖÐ"#"ΪעÊÍ
Îļþ db.properties
username=ÇØÑæÅà
password=peiaihua
×îºÃ·ÅÖõ½/WEB-INF/db.properties
¶ÁÈ¡ÊôÐÔÎļþµÄÐÅÏ¢:
/ÔÚwebÓ¦ÓÃÖÐ,getServletContext().getRealPath±íʾµÄ
ÊÇweb¹¤³ÌµÄ¸ù·¾¶,
Èç:"C:\Program Files\apache-tomcat-6.0.18\webapps\TestURL"
String path=this.getServletContext().getRealPath("");
FileImputSream fi=new FileInputStream(path);
Properties pro=new Properties();
pro.load(fi);
pro.getProperty("key");
String realPath=this.getServletContext().getResourceAsStream("/WEB-INF/db.properties")
±íʾµÄÒ²ÊÇ´Ó¸ù·¾¶¿ªÊ¼¼ÓÔØÎļþ:
-----------------------------------------------------------------------------------------------------------------
<!-- ¸Ã±êÇ©±íʾ·þÎñÆ÷Æô¶¯Ê±,×Ô¶¯´´½¨servlet¶ÔÏó,¶øÇÒÊý×ÖÔ½ÏÈÓÅÏȼ¶Ô½¸ß-->
<Load-on-startup>0,1,2,3,....</Load-on-srartup>
-----------------------------------------------------------------------------------------------------------------
servletͨÐÅ(communicate):
·¾¶ÉèÖÃ:
&n
Ïà¹ØÎĵµ£º
1. jspÒ³ÃæÏÔʾÖÐÎÄÂÒÂ룺
jspÒ³ÃæµÄ±àÂ뷽ʽÓÐÁ½¸öµØ·½ÐèÒªÉèÖãº
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ page contentType="text/html;charset=utf-8"%>
ÆäÖУºpageEncoding Ö¸µÄÊÇjspÎļþ±¾É ......
±àд×Ô¶¨Òå±êÇ©²½Öè
±àд±êÇ©´¦ÀíÆ÷£¨´¦Àí±êÇ©µÄJavaÀࣩ£¬ÕâЩÀàÐèҪʵÏÖһЩ¹æ·¶»¯µÄ±êÇ©½Ó¿Ú
±àд±êÇ©¿âÃèÊöÎļþ£¨TLD£©£¬Õâ¸öÎļþÃèÊöÁËÿ¸ö±êÇ©ºÍ¶ÔÓ¦µÄJava±êÇ©´¦ÀíÆ÷ÀàÖ®¼äµÄÓ³Éä¹ØÏµ
ÔÚweb.xmlÖÐÅäÖñêÇ©¿âÎļþµÄURI
ÔÚJSPÒ³ÃæÖÐÀûÓÃtaglibÖ¸Á±êÇ©¿âÒýÈëµ½Ò³ÃæÖÐ
......
±íµ¥ÈçÏ£º
<form name="form1" action="test.jsp" method="post" onsubmit="return checkData();">
<input name="checkall1" type="checkbox" value="0" onClick="checkAllBox(this);"/>ȫѡ<br>
<input name="answer" type="checkbox" value="a"/>A<b ......
½ñÌì¿´µ½Á˹«Ë¾ÒÔÓеÄÏîÄ¿ÀïÃæÓÐÖ±½Óͨ¹ýjsp£¨table£©µ¼³öΪexcel±¨±íµÄÓ¦Ó㬸оõºÜÐÂÆæ£¬ÒÔÓÐ×öµ¼³öexcel¶¼»áÓÃjava´úÂëд£¬Óõ½×¨ÃŵÄÀà¿â£¬²Ù×÷excelÄ£°å£¬ºÜ¸´ÔÓ£¬ÓÃÕâ¸ö·½·¨£¬¿ÉÄܵõ½µÄ±í¸ñûÓÐÄÇô¾«È·£¬µ«¼òµ¥¸ßЧ£¬Ó¦¸ÃÊÇÒ»¸ö²»´íµÄÓ¦Óá£ÏÂÃæµÄÍøÉϱðµÄͬȥµÄһƪÎÄÕ£¬ÕâÀïÕ³Á˹ýÀ´£¬ºÃ¼Çס£¬ÌØ´ËÉùÃ÷¡£
JSPÓ¦ ......
1£®
×î»ù±¾µÄÂÒÂëÎÊÌâ¡£
Õâ¸öÂÒÂëÎÊÌâÊÇ×î¼òµ¥µÄÂÒÂëÎÊÌâ¡£Ò»°ãÐÂÊÖ»á³öÏÖ¡£¾ÍÊÇ
Ò³Ãæ±àÂë²»Ò»Öµ¼ÖµÄÂÒÂë¡£
<%@ page
language="java" pageEncoding="UTF-8"%>
<%@ page
contentType="text/html;charset=iso8859-1"%>
<html>
<head>
<title> ......