Copy library到Tomcat
?classes12.jar和nls_charset12.jar copy到%Tomcat%/common/lib
?定server.xml
在%Tomcat%/conf?找到server.xml，然後在?面加上下面?段?定。
<DefaultContext crossContext="true" reloadable="true">
或<Context path="/modName" docBase="modName" debug="1" reloadable="true" crossContext="true">
<Resource auth="Container" name="jdbc/epmp" scope="Shareable" type="javax.sql.DataSource"/>
<ResourceParams name="jdbc/epmp">
<parameter>
<name>factory</name>
<value>org.apache.commons.dbcp.BasicDataSourceFactory</value>
</parameter>
<!--Oracle-->
<parameter>
<name>url</name>
<value>jdbc:oracle:thin:@hostname:1521:SID</value>
</parameter>
<parameter>
<name>driverClassName</name>
<value>oracle.jdbc.driver.OracleDriver</value>
</parameter>
<!--MySQL-->
<parameter>
<name>url</name>
<value>jdbc:mysql://localhost:3306/forumdb?autoReconnect=true</value>
</parameter>
<parameter>
<name>driverClassName</name>
<value>com.mysql.jdbc.Driver</value>
</parameter>
<parameter>
<name>username</name>
<value>user</value>
</parameter>
<parameter>
<name>password</name>
<value>pwd</value>
</parameter>
<parameter>
<name>maxActive</name>
<value>20</value>
</parameter>
<parameter>
<name>maxIdle</name>
<value>10</value>
</parameter>
<parameter>
<name>maxWait</name>
<value>-1</value>
</parameter>
</ResourceParams>
</DefaultContext>
或
</Context>
?定web.xml
如?１?定JNDI的?照，?定好之後?可以在web.xml中??WSAD?我?加入的?容。
<resource-ref>
<res-ref-name>jdbc/epmp</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
<res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>
TestCode
Test.jsp
<%@ page import=" java.sql.*"%>
<%@ page import=" javax.naming.*"%>
<%@ page import=" javax.sql.*"%>
<html>
<head>
<title>DB Test</title>
</head>
<body>
<h2>Results</h2>
<%
DataSource ds=null;
Context ct = new InitialContext();
ds = (DataSource) ct.lookup("java:comp/env/jdbc/yinhu");
Connection con=ds.getConnection();
Statement sm=con.createStatement();
ResultSet rs=sm.executeQuery("select ename from emp where deptno=10");
while(rs.next())
{
String s=rs.getString("ename");
out.println(s+"<br>");
}
%>
</body>
</html>
<!--------------------------->
<%@ taglib uri="http://java.sun.com/jsp/jstl/sql" prefix="sql" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<sql:query var="rs" dataSource="jdbc/TestDB">
select id, foo, bar from testdata
</sql:query>
<html>
<head>
<title>DB Test</title>
</head>
<body>
<h2>Results</h2>
<c:forEach var="row" items="${rs.rows}">
Foo ${row.foo}<br/>
Bar ${row.bar}<br/>
</c:forEach>
</body>
</html>