JNDI--Tomcat

<Context>

  <Resource name="jdbc/datasource" auth="Container"

            type="javax.sql.DataSource" username="root" password="root"

            driverClassName="com.mysql.jdbc.Driver"

     　　 url="jdbc:mysql://localhost:3306/jdbc"

            maxActive="8" maxIdle="4"/>

</Context>

 

 

Context initCtx = new InitialContext();

Context envCtx = (Context) initCtx.lookup("java:comp/env");

dataSource = (DataSource)envCtx.lookup("jdbc/datasource");

 

 

 

l特别提醒：此种配置下，驱动jar文件需放置在tomcat的lib下

l