前言
博主这里项目采用maven构建，使用spring容器， 关于Druid数据库连接池是什么等问题可移步我的这篇博文，数据库连接池Druid一览
下面分步骤来看看，在项目中如何使用Druid
1.首先配置pom.xml,添加Druid依赖
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.18</version>
</dependency>
2.数据源的配置，如下
我的连接信息：
jdbc.driver=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://127.0.0.1:3306/webside?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull&allowMultiQueries=true&autoReconnect=true jdbc.username=root jdbc.password=sasa #jdbc.password=oNF4ELsLxPYSYcuq4e6dihnGZhInVdUcHsSjA9RFoT druid.initialSize=10 druid.minIdle=10 druid.maxActive=50 druid.maxWait=60000 druid.timeBetweenEvictionRunsMillis=60000 druid.minEvictableIdleTimeMillis=300000 druid.validationQuery=SELECT 'x' druid.testWhileIdle=true druid.testOnBorrow=false druid.testOnReturn=false druid.poolPreparedStatements=true druid.maxPoolPreparedStatementPerConnectionSize=20 druid.maxOpenPreparedStatements=100 druid.timeBetweenLogStatsMillis=300000 druid.filters=config,wall,log4j #加上如下配置可以加解密 数据库连接密码 #druid.connectionProperties==true;.key=MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAKZN4rjl druid.useGlobalDataSourceStat=true druid.removeAbandoned=true druid.removeAbandonedTimeout=1800 druid.logAbandoned=false 我的datasource bean配置
代码语言：javascript复制 <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
init-method="init" destroy-method="close">
<!-- 基本属性 url、user、password -->
<property name="driverClassName" value="${jdbc.driver}" />
<property name="url" value="${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="${druid.initialSize}" />
<property name="minIdle" value="${druid.minIdle}" />
<property name="maxActive" value="${druid.maxActive}" />
<!-- 配置获取连接等待超时的时间 -->
<property name="maxWait" value="${druid.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="${druid.timeBetweenEvictionRunsMillis}" />
<!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
<property name="minEvictableIdleTimeMillis" value="${druid.minEvictableIdleTimeMillis}" />
<property name="validationQuery" value="${druid.validationQuery}" />
<property name="testWhileIdle" value="${druid.testWhileIdle}" />
<property name="testOnBorrow" value="${druid.testOnBorrow}" />
<property name="testOnReturn" value="${druid.testOnReturn}" />
<!-- 打开PSCache，并且指定每个连接上PSCache的大小 -->
<property name="poolPreparedStatements" value="${druid.poolPreparedStatements}" />
<property name="maxPoolPreparedStatementPerConnectionSize"
value="${druid.maxPoolPreparedStatementPerConnectionSize}" />
<property name="maxOpenPreparedStatements" value="${druid.maxOpenPreparedStatements}" />
<!-- 打开removeAbandoned功能 -->
<property name="removeAbandoned" value="${druid.removeAbandoned}" />
<!-- 1800秒，也就是30分钟,超过30分钟,连接会自动关闭 -->
<property name="removeAbandonedTimeout" value="${druid.removeAbandonedTimeout}" />
<!-- 关闭abanded连接时输出错误日志 -->
<property name="logAbandoned" value="${druid.logAbandoned}" />
<!-- 配置监控统计拦截的filters -->
<property name="filters" value="${druid.filters}" />
<property name="proxyFilters">
<list>
<ref bean="stat-filter" />
</list>
</property>
<!--使用此配置数据库连接密码将采用 密文模式<property name="connectionProperties" value="${druid.connectionProperties}" />-->
<property name="useGlobalDataSourceStat" value="${druid.useGlobalDataSourceStat}" />
</bean>3.配置web.xml开启sql监控功能
代码语言：javascript复制 DruidWebStatFilter
com.alibaba.druid.support.http.WebStatFilter
exclusions
*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*
principalCookieName
webside.cookieid
sessionStatMaxCount
1000
sessionStatEnable
true
profileEnable
true
DruidWebStatFilter
/*
DruidStatView
com.alibaba.druid.support.http.StatViewServlet
resetEnable
true
loginUsername
druid
loginPassword
druid
allow
127.0.0.1/24,127.0.0.1
deny
172.101.106.13
DruidStatView
/druid/*sql监控界面如下：
