阿里巴巴连接池DruidDataSource配置
DruidDataSource配置
1.jar包依赖
- <dependency>
- <groupId>com.alibaba</groupId>
- <artifactId>druid</artifactId>
- <version>0.2.15</version>
- </dependency>
2.applicationContext-resources.xml 配置数据库连接池,以mysql数据库为例
- <!-- 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" />-->
- <!-- 开启Druid的监控统计功能 -->
- <property name="filters" value="stat" />
- </bean>
3.内置监控界面使用配置
修改web.xml,加入如下内容:
- <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>
然后访问druid/index.html页面
4.通过访问druid/index.html 可以查看项目的运行情况,也可以分析SQL语句的执行情况,便于调优