在TOMCAT中使用JNDI连接数据源

1）TOMCAT <Context></Context>中配置 <ResourceParams>节，其中name="jdbc/dataSource"

就是JNDI名

2）JAVA代码调用

InitialContext ctx=new InitialContext();

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

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

conn = ds.getConnection();

<ResourceParams name="jdbc/dataSource">

<parameter>

<name>factory</name>

<value>org.apache.commons.dbcp.BasicDataSourceFactory</value>

</parameter>

<!-- Maximum number of dB connections in pool. Make sure you

configure your mysqld max_connections large enough to handle

all of your db connections. Set to 0 for no limit.

-->

<parameter>

<name>maxActive</name>

<value>100</value>

</parameter>

<!-- Maximum number of idle dB connections to retain in pool.

Set to 0 for no limit.

-->

<parameter>

<name>maxIdle</name>

<value>30</value>

</parameter>

<!-- Maximum time to wait for a dB connection to become available

in ms, in this example 10 seconds. An Exception is thrown if

this timeout is exceeded. Set to -1 to wait indefinitely.

-->

<parameter>

<name>maxWait</name>

<value>10000</value>

</parameter>

<!-- MySQL dB username and password for dB connections -->

<parameter>

<name>username</name>

<value>ZLGL</value>

</parameter>

<parameter>

<name>password</name>

<value>ZLGL</value>

</parameter>

<!-- Class name for mm.mysql JDBC driver -->

<parameter>

<name>driverClassName</name>

<value>oracle.jdbc.driver.OracleDriver</value>

</parameter>

<!-- The JDBC connection url for connecting to your MySQL dB.

The autoReconnect=true argument to the url makes sure that the

mm.mysql JDBC Driver will automatically reconnect if mysqld closed the

connection. mysqld by default closes idle connections after 8 hours.-->

<parameter>

<name>url</name>

<value>jdbc:oracle:thin:ZLGL/ZLGL@192.168.0.166:1521:ZLGL</value>

</parameter>

</ResourceParams>