怎样在tomcat5中配置mysql数据源

<Context path="/myapps" docBase="d:\myweb\myapps" debug="0"
reloadable="true" > 
 


  <Resource name="jdbc/DBConnection"
               auth="Container"
               type="javax.sql.DataSource" /> 
 

  <ResourceParams name="jdbc/DBConnection">
    <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>10</value>
    </parameter> 
 

    <!-- Maximum number of idle dB connections to retain in pool.
         Set to 0 for no limit.
         -->
    <parameter>
      <name>maxIdle</name>
      <value>3</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.
        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>root</value>
    </parameter>
    <parameter>
     <name>password</name>
     <value>1234</value>
    </parameter> 
 

    <!-- Class name for mm.mysql JDBC driver -->
    <parameter>
       <name>driverClassName</name>
       <value>com.mysql.jdbc.Driver</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:mysql://localhost:3306/forumdb?autoReconnect=true</value>
    </parameter>
  </ResourceParams> 
 

</Context>