阿里巴巴連接池DruidDataSource配置

DruidDataSource配置

1.jar包依賴

 

<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>0.2.15</version>
        </dependency>

 2.applicationContext-resources.xml 配置數據庫連接池，以mysql數據庫為例

 

 

<!-- JNDI DataSource for J2EE environments -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
        <property name="url" value="jdbc:mysql://127.0.0.1:3306/XXX" />
        <property name="username" value="root" />
        <property name="password" value="root" />

        <property name="maxActive" value="20" />
        <property name="initialSize" value="1" />
        <property name="maxWait" value="60000" />
        <property name="minIdle" value="1" />

        <property name="timeBetweenEvictionRunsMillis" value="3000" />
        <property name="minEvictableIdleTimeMillis" value="300000" />

        <property name="validationQuery" value="SELECT 'x' FROM DUAL" />
        <property name="testWhileIdle" value="true" />
        <property name="testOnBorrow" value="false" />
        <property name="testOnReturn" value="false" />
        <!-- mysql 不支持 poolPreparedStatements-->
        <!--<property name="poolPreparedStatements" value="true" />-->
        <!--<property name="maxPoolPreparedStatementPerConnectionSize" value="20" />-->

        <!-- 開啟Druid的監控統計功能 -->
        <property name="filters" value="stat" />

    </bean>

 3.內置監控界面使用配置

修改web.xml，加入如下內容：

<servlet>
    <servlet-name>DruidStatView</servlet-name>
    <servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>DruidStatView</servlet-name>
    <url-pattern>/druid/*</url-pattern>
</servlet-mapping>

 

然后訪問druid/index.html頁面

 

4.通過訪問druid/index.html 可以查看項目的運行情況，也可以分析SQL語句的執行情況，便於調優