tomcat连接池的配置 Java开发及编程思想

<Resource name="jdbc/testDB" auth="Container"
type="javax.sql.DataSource"/>
<ResourceParams name="jdbc/testDB">
<parameter>
<name>factory</name>
<value>org.apache.commons.dbcp.BasicDataSourceFactory</value>
</parameter>
<parameter>
<name>driverClassName</name>
<value>com.microsoft.jdbc.sqlserver.SQLServerDriver</value>
</parameter>
<parameter>
<name>url</name>
<value>jdbc:microsoft:sqlserver://218.246.85.65:1433;DatabaseName=ZCMIS</v
alue>
</parameter>
<parameter>
<name>username</name>
<value>sa</value>
</parameter>
<parameter>
<name>password</name>
<value>sa</value>
</parameter>
<parameter>
<name>maxActive</name>
<value>30</value>
</parameter>
<parameter>
<name>maxIdle</name>
<value>10</value>
</parameter>
<parameter>
<name>maxWait</name>
<value>1000</value>
</parameter>
</ResourceParams>
把下面的东西加到web.xml中
<resource-ref>
<description>DB Connection</description>
<res-ref-name>jdbc/testDB</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
类的内部实现
try{
Context initCtx = new InitialContext();
Context ctx = (Context) initCtx.lookup("java:comp/env");
//获取连接池对象
Object obj = (Object) ctx.lookup("jdbc/testDB");
javax.sql.DataSource ds = (javax.sql.DataSource)obj;
Connection conn = ds.getConnection();
}
catch(Exception e)
{
System.out.print(e.toString());
}