我常用的数据库，记录下它们的连接语句，因为有时候会忘了！

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MySql：

<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost/databaseName</property>
<property name="connection.username">root</property>
<property name="connection.password">123</property>

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Oracle：

<property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
<property name="connection.url">jdbc:oracle:thin:@localhost:1521:databaseName</property>
<property name="connection.username">scott</property>
<property name="connection.password">tiger</property>