标签：htm 统计 mys enc sql ntp org blank 时间
1.配置Druid的内置监控
首先在Maven项目的pom.xml中引入包
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid-version}</version>
</dependency>
2.引入包后配置spring的配置文件
<!--读取配置文件--> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>classpath:jdbc.properties</value> </list> </property> </bean> <!-- Druid JNDI DataSource for J2EE environments --> <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <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>
然后在web.xml中打开监控服务
<!-- 添加druid监控--> <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> <!-- 添加Web应用等监控--> <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/*</param-value> </init-param> <init-param> <param-name>profileEnable</param-name> <param-value>true</param-value> </init-param> <init-param> <param-name>principalCookieName</param-name> <param-value>USER_COOKIE</param-value> </init-param> <init-param> <param-name>principalSessionName</param-name> <param-value>USER_SESSION</param-value> </init-param> </filter> <filter-mapping> <filter-name>DruidWebStatFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>
好了，经过上边三个步骤，就可以进行监控了。访问页面http://127.0.0.1:8080/{projectName}/druid/index.html就可以访问监控页面了，druid已经将数据友好的显示到页面上了，包括每条sql执行的次数，执行的时间，最慢时间等等很多详细信息，供我们参考，找到哪些执行效率低的耗时长的语句进行优化。同时提供数据源、sql防火墙，web应用，URI监控、Session监控，spring监控等，里面有详细的各种数据信息，大家可以参考查阅。projectName是项目名称
下边是监控结果页面截图
标签：htm 统计 mys enc sql ntp org blank 时间
原文地址：https://www.cnblogs.com/lr393993507/p/9580589.html
