spring配置資料來源的四種方式
阿新 • • 發佈:2019-02-11
一、spring預設的 DriverManagerDataSource
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql:///empdb"></property>
<property name="username" value="root"></property>
<property name="password" value=""></property>
</bean>
二、JDBC資料來源 BasicDataSource
需要匯入兩種jar包
分別是:
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql:///empdb"></property>
<property name="username" value="root"></property>
<property name="password" value=""></property>
</bean>
三、C3P0資料來源 ComboPooledDataSource
需要匯入jar包:c3p0-0.9.1.2.jar
1.第一種方式:
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="com.mysql.jdbc.Driver"></property>
<property name="jdbcUrl" value="jdbc:mysql:///empdb"></property>
<property name="user" value="root"></property>
<property name="password" value=""></property>
</bean>
2..第二種方式:與database.properties連用
database.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/empdb?useUnicode=true&characterEncoding=UTF-8
jdbc.username=root
jdbc.password=
<!--1.C3P0資料來源-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driver}"></property>
<property name="jdbcUrl" value="${jdbc.url}"></property>
<property name="user" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
</bean>
<!--方式一:找到database.properties 檔案-->
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><property name="location" value="classpath:database.properties"></property></bean>
<!--方式二:找到database.properties 檔案--><context:property-placeholder location="database.properties"></context:property-placeholder>
四、druib資料來源 阿里巴巴
DruidDataSource
需要匯入jar包:com.alibaba.druid.jar
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql:///empdb"></property>
<property name="username" value="root"></property>
<property name="password" value=""></property>
</bean>