修改Tomcat的主配置文件,增加一个Postgre数据库JDBC连接池

<Context path="/quickstart" docBase="quickstart"
    <Resource name="jdbc/quickstart" scope="Shareable" type="javax.sql.DataSource"/
    <ResourceParams name="jdbc/quickstart"
        <parameter
            <namefactory</name
            <valueorg.apache.commons.dbcp.BasicDataSourceFactory</value
        </parameter

        <!-- DBCP database connection settings --
        <parameter
            <nameurl</name
            <valuejdbc:postgresql://localhost/quickstart</value
        </parameter
        <parameter
            <namedriverClassName</name<valueorg.postgresql.Driver</value
        </parameter
        <parameter
            <nameusername</name
            <valuequickstart</value
        </parameter
        <parameter
            <namepassword</name
            <valuesecret</value
        </parameter

        <!-- DBCP connection pooling options --
        <parameter
            <namemaxWait</name
            <value3000</value
        </parameter
        <parameter
            <namemaxIdle</name
            <value100</value
        </parameter
        <parameter
            <namemaxActive</name
            <value10</value
        </parameter
    </ResourceParams
</Context