Spring数据库连接

1.C3P0数据库连接

2.DBCP数据库连接

3.Druid数据库连接

C3P0数据库连接:

1.先到(http://www.mvnrepository.com/)Maven网址找到C3P0的数据源依赖包

<!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->
<dependency>
    <groupId>com.mchange</groupId>
    <artifactId>c3p0</artifactId>
    <version>0.9.5.2</version>
</dependency>

2.在Spring里面进行配置信息

<!--配置数据源-->
<bean id="myDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.cj.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/ot?serverTimezone=GMT%2B8&amp;useSSL=false&amp;allowPublicKeyRetrieval=true"></property>
        <property name="user" value="root"></property>
        <property name="password" value="123456"></property>
        <property name="minPoolSize" value="3"></property>
        <property name="maxPoolSize" value="15"></property>
        <property name="initialPoolSize" value="3"></property>
    </bean>

3.绑定配置数据源的id="myDataSource" 在下面的文件ref中绑定

<bean id="mySqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="myDataSource"></property>
        <property name="mapperLocations" value="classpath*:Mapper/*.xml"></property>
    </bean>

DBCP数据库连接:

1.先到(http://www.mvnrepository.com/)Maven网址找到DBCP的数据源依赖包

<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-dbcp2 -->
<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-dbcp2</artifactId>
    <version>2.5.0</version>
</dependency>

2.在Spring里面进行配置信息

<bean id="myDataSource-dbcp" class="org.apache.commons.dbcp2.BasicDataSource">
        <property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://localhost:3306/ot?serverTimezone=GMT%2B8&amp;useSSL=false&amp;allowPublicKeyRetrieval=true"></property>
        <property name="username" value="root"></property>
        <property name="password" value="123456"></property>
    </bean>

3.绑定配置数据源的id="myDataSource-dbcp" 在下面的文件ref中绑定

<bean id="mySqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="myDataSource-dbcp"></property>
        <property name="mapperLocations" value="classpath*:Mapper/*.xml"></property>
</bean>

Druid数据库连接:

1.先到(http://www.mvnrepository.com/)Maven网址找到Druid的数据源依赖包

<!-- https://mvnrepository.com/artifact/com.alibaba/druid -->
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.1.10</version>
</dependency>

2.在Spring里面进行配置信息

<bean id="Druid" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://localhost:3306/ot?serverTimezone=GMT%2B8&amp;useSSL=false&amp;allowPublicKeyRetrieval=true"></property>
        <property name="username" value="root"/>
        <property name="password" value="123456"/>
    </bean>

3.绑定配置数据源的id="Druid" 在下面的文件ref中绑定

<bean id="mySqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="Druid"></property>
        <property name="mapperLocations" value="classpath*:Mapper/*.xml"></property>
</bean>

myDataSource-dbcp