Java数据库连接池连接Oracle过程详解

<?xml version="1.0" encoding="utf-8"?>
<context>
<resource name="jdbc/lwl" auth="container"
type="javax.sql.datasource"
driverclassname="oracle.jdbc.driver.oracledriver"
url="jdbc:oracle:thin:@192.168.1.3:1521:xe"
username="lwl"
password="123456"
maxactive="5"
maxidle="2"
maxwait="5000"/>
</context>

private static connection getconn() {
connection conn = null;
try {
context ctx = new initialcontext();
datasource ds = (datasource) ctx.lookup("java:comp/env/jdbc/lwl");
conn = ds.getconnection();
} catch (exception e) {
system.err.println("error:" + e.getmessage());
}
return conn;
}