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°ÑmysqlÇý¶¯°ü·Ö±ð·Åµ½%TOMCAT_HOME%/lib ºÍÄãµÄÓ¦ÓõÄWEB-INF\libÎļþ¼ÐÏÂÃæ
1¡¢ÐÞ¸Ä%TOMCAT_HOME%/conf/server.xml,Ìí¼ÓÈçÏÂÄÚÈÝ£¨²¿·Ö²ÎÊýÇë±¾µØ»¯£©£º
      <Context path="/web" docBase="web" debug="0"      reloadable="true" crossContext="true">   
 
        <Resource name="jdbc/query"      auth="Container"
type="javax.sql.DataSource" driverClassName="org.gjt.mm.mysql.Driver"
maxIdle="20" maxWait="5000" username="username" password="password"
url="jdbc:mysql://localhost:3306/DataBaseName"      maxActive="100"   
removeAbandoned="true" removeAbandonedTimeout="60"
logAbandoned="true"/>
</Context>
2¡¢Ð޸ĶÔÓ¦Ó¦ÓõÄweb.xml£¬ÔÚ</web-app>ǰÌí¼ÓÈçÏÂÄÚÈÝ£º
<ResourceLink name="jdbc/query" global="jdbc/query" type="javax.sql.DataSourcer"/>
ÖØÆôtomcat£¬´ó¹¦¸ã³É£¡
Ó¦ÓÃʵÀýÈçÏ£º
<%@ page contentType="text/html; charset=gb2312" %>
<%@ page import="javax.naming.Context" %>
<%@ page import="javax.sql.DataSource"%>
<%@ page import="javax.naming.InitialContext"%>
<%@ page import="java.sql.*"%>
<html>
<body>
123
<%
        DataSource ds = null;
        try{
          Context initCtx = new InitialContext();
          Context envCtx = (Context) initCtx.lookup("java:comp/env");
        //´ÓContextÖÐlookupÊý¾ÝÔ´¡£
          ds = (DataSource)envCtx.lookup("jdbc/query");
       


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