c3p0-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<c3p0-config>
  <named-config name="jdbc/mysqlname">
    <property name="user">username</property>
    <property name="password">password</property>
    <property name="driverClass">com.mysql.jdbc.Driver</
 
property>
    <property name="jdbcUrl">jdbc:mysql://地址:端口/數據庫名?characterEncoding=utf-8</property>
    <property name="initialPoolSize">3</property>
    <property name="maxIdleTime">30</property>
    <property name="maxPoolSize">6</property>
    <property 
 
name="minPoolSize">2</property>
  </named-config>
  <named-config name="jdbc/oraclename">
    <property name="user">username</property>
    <property name="password">password</property>
    <property name="driverClass">oracle.jdbc.driver.OracleDriver</
 
property>
    <property name="jdbcUrl">jdbc:oracle:thin:@地址:端口:ORCL</property>
    <!--初始化時獲取三個連接，取值應在minPoolSize與maxPoolSize之間。-->
    <property name="initialPoolSize">3</property>
    <!--最大空閑時間,30秒內未使用則連接被丟棄。若為0則永不丟棄。-->
    <property name="maxIdleTime">30</property>
    <!--連接池中保留的最大連接數。-->
    <property name="maxPoolSize">6</property>
    <!--連接池中保留的最小連接數 -->
    <property name="minPoolSize">2</property>
  </named-config>
</c3p0-config>

c3p0連接池基本配置mysql和oracle