tomcat连接池的配置

<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());

}