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TOMCat 5.5.9+Mysql5.0.15中的数据源配置

2005-11-19 12:53 302 查看

1.现在%tomcat home%/conf/catalina/localhost 下面添加一段独立的context xml段,命名为MyWebProject.xml,例如
<?xml version="1.0" encoding="UTF-8"?>
<Context path="/MyWebProject" docBase="MyWebProject" debug="1" reloadable="true" crossContext="true">
</Context>
2.通过admin的界面(或手动在server.xml界面里进行配置)数据源,以mysql5.0.15为例,配置后的server.xml,只添加全局资源就可以了
<?xml version="1.0" encoding="UTF-8"?>
<Server>
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"/>
<Listener className="org.apache.catalina.storeconfig.StoreConfigLifecycleListener"/>
<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener"/>
<GlobalNamingResources>

<Environment name="simpleValue" type="java.lang.Integer" value="30"/>

<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
description="User database that can be updated and saved"
factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
pathname="conf/tomcat-users.xml" />
<Resource
name="mysql/test"
type="javax.sql.DataSource"
password="123456"
driverClassName="com.mysql.jdbc.Driver"
maxIdle="2"
maxWait="5000"
username="root"
url="jdbc:mysql://localhost:3306/test"
maxActive="20"/>
</GlobalNamingResources>
<Service
name="Catalina">
<Connector
port="80"
redirectPort="8443"
minSpareThreads="25"
connectionTimeout="20000"
maxSpareThreads="75"
maxThreads="150"
maxHttpHeaderSize="8192">
</Connector>
<Connector
port="8009"
redirectPort="8443"
protocol="AJP/1.3">
</Connector>
<Engine
defaultHost="localhost"
name="Catalina">
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"/>
<Host
appBase="webapps"
name="localhost">
</Host>
</Engine>
</Service>
</Server>
3.在conf下面的context.xml文件中,</Context>之前加入
<ResourceLink name="mysql/test" global="mysql/test" type="javax.sql.DataSourcer"/>

4.在你的web文件夹下面的WEB-INF中找到web.xml,在最后</web-app>之前加入
<resource-ref>
<description>mysqlDB Connection</description>
<res-ref-name>mysql/test</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
5:测试页面:testDataSource.jsp
<%@ page contentType="text/html;charset=gb2312" %>
<%@ page import="java.sql.*"%>
<%@ page import="javax.sql.*"%>
<%@ page import="javax.naming.*"%>
<%@ page session="false" %>
<html>
<head>
<title></title>
<%
out.print("我的测试开始"+"<br/>");
DataSource ds = null;
try{
InitialContext ctx=new InitialContext();
ds=(DataSource)ctx.lookup("java:comp/env/dhzMySql");
Connection conn = ds.getConnection();
Statement stmt = conn.createStatement();
String strSql = " select * from tabur";
ResultSet rs = stmt.executeQuery(strSql);
while(rs.next()){
out.print(rs.getString(1)+"<br/>");
}
rs.close();
stmt.close();
conn.close();
out.print("我的测试结束");
}
catch(Exception ex){
out.print("出现例外，信息是:"+ex.getMessage());
ex.printStackTrace();
}
%>
</head>
<body>
</body>
</html>

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