数据库连接池druid使用总结

<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid.version}</version>
</dependency>

<!-- druid界面监控servlet -->
<servlet>
<servlet-name>DruidStatView</servlet-name>
<servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>
<init-param>
<!-- 允许清空统计数据 -->
<param-name>resetEnable</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<!-- 用户名 -->
<param-name>loginUsername</param-name>
<param-value>druid</param-value>
</init-param>
<init-param>
<!-- 密码 -->
<param-name>loginPassword</param-name>
<param-value>druid</param-value>
</init-param>
</servlet>
<filter>
<filter-name>DruidWebStatFilter</filter-name>
<filter-class>com.alibaba.druid.support.http.WebStatFilter</filter-class>
<init-param>
<param-name>exclusions</param-name>
<param-value>*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*</param-value>
</init-param>
<init-param>
<param-name>sessionStatMaxCount</param-name>
<param-value>1000</param-value>
</init-param>
<!--session统计-->
<init-param>
<param-name>sessionStatEnable</param-name>
<param-value>true</param-value>
</init-param>
<!--cookie名称-->
<init-param>
<param-name>principalCookieName</param-name>
<param-value>sispsid</param-value>
</init-param>
<!--监控单个url调用的sql列表-->
<init-param>
<param-name>profileEnable</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>DruidWebStatFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<!--druid 连接池-->
<bean id="stat-filter" class="com.alibaba.druid.filter.stat.StatFilter">
<property name="mergeSql" value="true"/>
<property name="slowSqlMillis" value="10000"/>
<property name="logSlowSql" value="true"/>
</bean>

<bean id="druid-stat-interceptor"
class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor">
</bean>

<!-- druid spring monitor setting -->
<bean id="druid-type-proxyCreator" class="com.alibaba.druid.support.spring.stat.BeanTypeAutoProxyCreator">
<!-- 所有xxInterface的派生类被拦截监控  -->
<property name="targetBeanType" value="xxx.xxInterface" />
<property name="interceptorNames">
<list>
<value>druid-stat-interceptor</value>
</list>
</property>
</bean>

<!-- alibaba开源druid连接池 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
init-method="init" destroy-method="close">
<!-- 基本属性 url、user、password -->
<property name="url" value="${datasource.url}"/>
<property name="username" value="${datasource.username}"/>
<property name="password" value="${datasource.password}"/>
<!-- 配置初始化大小、最小、最大 -->
<property name="initialSize" value="${datasource.initialSize}"/>
<property name="minIdle" value="${datasource.minIdle}"/>
<property name="maxActive" value="${datasource.maxActive}"/>
<!-- 配置获取连接等待超时的时间 -->
<property name="maxWait" value="${d
7fe0
atasource.maxWait}"/>
<!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
<property name="timeBetweenEvictionRunsMillis"
value="${datasource.timeBetweenEvictionRunsMillis}"/>
<!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
<property name="minEvictableIdleTimeMillis" value="${datasource.minEvictableIdleTimeMillis}"/>
<!-- 配置监控统计拦截的filters -->
<property name="filters" value="stat,log4j,mergeStat"/>

<property name="validationQuery" value="SELECT * from dual"/>
<property name="testWhileIdle" value="true"/>
<property name="testOnBorrow" value="false"/>
<property name="testOnReturn" value="false"/>
<!--执行超过5秒的sql -->
<property name="connectionProperties" value="druid.stat.slowSqlMillis=5000"/>
</bean>

<!-- MyBatis配置 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="configLocation" value="classpath:sqlmap-config.xml"/>
<!-- 显式指定Mapper文件位置 -->
<property name="mapperLocations"
value="classpath:/sqlmap/**/*.xml"/>
</bean>