spring 集成 druid

先在gradle里配置相应的包

compile group: 'com.alibaba', name: 'druid', version: '1.0.27'

在web.xml中配置

	<!-- 连接池 启用 Web 监控统计功能    start--> 
	 <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>
        <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> 
	 <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> 
 	<!-- 连接池 启用 Web 监控统计功能    end-->

spring上下文配置增加,

	<bean id="propertyConfigurer"
		class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
		<property name="locations">
			<list>
				<value>/WEB-INF/config/dbconfig.properties</value>
			</list>
		</property>
	</bean>

datasource配置 注释掉的是原来的配置信息

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans.xsd 
	">

	<!-- <bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource" -->
	<!-- destroy-method="close"> -->
	<!-- <property name="driverClassName" value="com.mysql.cj.jdbc.Driver" /> -->
	<!-- <property name="url" -->
	<!-- value="jdbc:mysql://localhost:3306/myweibo?serverTimezone=UTC" /> -->
	<!-- <property name="username" value="root" /> -->
	<!-- <property name="password" value="123456" /> -->
	<!-- <property name="initialSize" value="5" /> -->
	<!-- </bean> -->

	<!-- 阿里 druid 数据库连接池 -->
	<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
		<!-- 数据库基本信息配置 -->
		<property name="url" value="${url}" />
		<property name="username" value="${username}" />
		<property name="password" value="${password}" />
		<property name="driverClassName" value="${driverClassName}" />
		<property name="filters" value="${filters}" />
		<!-- 最大并发连接数 -->
		<property name="maxActive" value="${maxActive}" />
		<!-- 初始化连接数量 -->
		<property name="initialSize" value="${initialSize}" />
		<!-- 配置获取连接等待超时的时间 -->
		<property name="maxWait" value="${maxWait}" />
		<!-- 最小空闲连接数 -->
		<property name="minIdle" value="${minIdle}" />
		<!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
		<property name="timeBetweenEvictionRunsMillis" value="${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="${minEvictableIdleTimeMillis}" />
		<property name="validationQuery" value="${validationQuery}" />
		<property name="testWhileIdle" value="${testWhileIdle}" />
		<property name="testOnBorrow" value="${testOnBorrow}" />
		<property name="testOnReturn" value="${testOnReturn}" />
		<property name="maxOpenPreparedStatements" value="${maxOpenPreparedStatements}" />
		<!-- 打开 removeAbandoned 功能 -->
		<property name="removeAbandoned" value="${removeAbandoned}" />
		<!-- 1800 秒，也就是 30 分钟 -->
		<property name="removeAbandonedTimeout" value="${removeAbandonedTimeout}" />
		<!-- 关闭 abanded 连接时输出错误日志 -->
		<property name="logAbandoned" value="${logAbandoned}" />
		<property name="connectionProperties" value="config.decrypt=true;config.decrypt.key=${publickey};druid.stat.slowSqlMillis=5000" />
	</bean>
</beans>

dbconfig.properties, 这里使用了密码加密.加密方法也很简单

https://github.com/alibaba/druid/wiki/%E4%BD%BF%E7%94%A8ConfigFilter 

url:jdbc:mysql://localhost:3306/myweibo?serverTimezone=UTC
driverClassName:com.mysql.cj.jdbc.Driver
username:root
password:UwJJ7yszUBhKKPdIv6ihaO+USCeNhJ+u2l4lagPLYWvAWkQN9dvAt4hxo1j6MI5h7qb6n0eaDxOLZI/kGm9kYw==
filters:config,stat,wall
maxActive:20
initialSize:1
maxWait:60000
minIdle:10
maxIdle:15
timeBetweenEvictionRunsMillis:60000
minEvictableIdleTimeMillis:300000
validationQuery:SELECT'x'
testWhileIdle:true
testOnBorrow:false
testOnReturn:false
maxOpenPreparedStatements:20
removeAbandoned:true
removeAbandonedTimeout:1800
logAbandoned:true
publickey:MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBALFxQkYrqVkDjqqedvqBe0RSOkewypkss5JX3kdoodmy38llEQaDhJfLwCfQEjAZtQy7xmJ6okmyf9MmepZ77rcCAwEAAQ==

代码方面不用变

最终效果

drui配置相关的问题https://github.com/alibaba/druid/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98