spring配置c3p0連接池
第一步導入jar包
c3p0.jar
mchange-commons-java.jar spring對c3p0支持所需
第二步創建配置文件,配置c3p0連接池
ComboPooledDateSource dataSource = new ComboPooledDataSource();
dataSource.setDriverClass(“com.mysql.jdbc.Driver”);
dataSource.setJdbcUrl(“jdbc:mysql:///項目名”);
dataSource.setUser(“”);
dataSource.setPassword(“”);
將以上代碼在spring xml中配置:
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"></bean>
<!-- 注入屬性值 --!>
<property name="driverClass" value="com.mysql.jdbc.Driver"></property>
<property name="jdbcUrl" value=""></property>
<property name="user" value=""></property>
<property name="password" value=""></property>
</bean>
dao使用jdbcTemplate
(1)創建service和dao,配置service和dao對象,在service在注入dao對象
<bean id="userService" class="">
<property name="userDao" ref="userDao"></property>
</bean>
(2)創建jdbcTemplate對象,把模板對象注入dao裏面,dao裏面有jdbc屬性和set方法
<bean id="userDao" class="">
<property name="jdbcTemplate" ref="jdbcTemplate"></property>
</bean>
(3)在jdbcTemplate裏面注入dataSource,前提是jdbcTemplate裏面有datasource屬性和set方法
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.jdbcTemplate">
<property name="dataSource" ref="dataSource"></property>
</bean>