druid 配置

连接池配置，以及相关配置

<bean id="logFilter" class="com.alibaba.druid.filter.logging.Slf4jLogFilter">
        <property name="dataSourceLogEnabled" value="false" />
        <property name="connectionLogEnabled" value="false" />
        <property name="statementLogEnabled" value="false" />
        <property name="resultSetLogEnabled" value="false" />
        <property name="statementExecutableSqlLogEnable" value="true" />
    </bean>

    <!-- 数据源配置,使用DruidDataSource数据库连接池 -->
    <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="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>

        <!-- 配置初始化大小、最小、最大 -->
        <property name="initialSize" value="3"/>
        <property name="minIdle" value="1"/>
        <property name="maxActive" value="20"/>

        <!-- 配置获取连接等待超时的时间 -->
        <property name="maxWait" value="60000"/>

        <!-- 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="60000"/>

        <!-- 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="300000"/>

        <property name="validationQuery" value="SELECT 'x'"/>
        <property name="testWhileIdle" value="true"/>
        <property name="testOnBorrow" value="false"/>
        <property name="testOnReturn" value="false"/>

        <!-- 打开PSCache，并且指定每个连接上PSCache的大小 -->
        <!--<property name="poolPreparedStatements" value="false"/>-->
        <!--<property name="maxPoolPreparedStatementPerConnectionSize" value="20"/>-->

        <!-- 配置监控统计拦截的filters -->
        <property name="filters" value="stat"/>
        <property name="proxyFilters">
            <list>
                <ref bean="logFilter"/>
            </list>
        </property>
    </bean>

性能监控

    <!-- druid方法性能监控，Controller需单独设置且需和mvc:annotation-driven放在同一个文件中，如spring-mvc.xml -->
    <bean id="druid-stat-interceptor"
          class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor">
    </bean>

    <bean id="druid-stat-pointcut-controller" class="org.springframework.aop.support.JdkRegexpMethodPointcut"
          scope="prototype">
        <property name="patterns">
            <list>
                <value>xx.xxx.theme.controller.*</value>
            </list>
        </property>
    </bean>

    <aop:config proxy-target-class="true">
        <aop:advisor advice-ref="druid-stat-interceptor"
                     pointcut-ref="druid-stat-pointcut-controller"/>
    </aop:config>

开启web监控。 web.xml

<!-- Druid数据源监控 -->
    <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/*,/public/*，/status/*</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>DruidWebStatFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <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>

参考：

https://github.com/alibaba/druid/wiki/%E9%85%8D%E7%BD%AE_LogFilter