c3p0连接池基本配置mysql和oracle

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/数据库名?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>
    <!--初始化时获取三个连接，取值应在minPoolSize与maxPoolSize之间。-->
    <property name="initialPoolSize">3</property>
    <!--最大空闲时间,30秒内未使用则连接被丢弃。若为0则永不丢弃。-->
    <property name="maxIdleTime">30</property>
    <!--连接池中保留的最大连接数。-->
    <property name="maxPoolSize">6</property>
    <!--连接池中保留的最小连接数 -->
    <property name="minPoolSize">2</property>
  </named-config>
</c3p0-config>

原文地址：https://www.cnblogs.com/linbo3168/p/8244548.html