springboot 集成 druid 阿里的数据库连接池

1.配置pom

<!-- druid 数据库连接池  -->
	    <dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid</artifactId>
			<version>1.1.12</version>
			<exclusions>  
		        <exclusion>  
		            <groupId>com.alibaba</groupId>  
		            <artifactId>jconsole</artifactId>  
		        </exclusion>  
		        <exclusion>  
		            <groupId>com.alibaba</groupId>  
		            <artifactId>tools</artifactId>  
		        </exclusion>  
		    </exclusions>
		</dependency>

2.配置 application.properties

#druid连接池
spring.datasource.type: com.alibaba.druid.pool.DruidDataSource
#最大活跃数
spring.datasource.maxActive: 20
#初始化数量
spring.datasource.initialSize: 1
#最大连接等待超时时间
spring.datasource.maxWait: 60000
#打开PSCache，并且指定每个连接PSCache的大小
spring.datasource.poolPreparedStatements: true
spring.datasource.maxPoolPreparedStatementPerConnectionSize: 20
#通过connectionProperties属性来打开mergeSql功能；慢SQL记录
#connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
spring.datasource.minIdle: 1
spring.datasource.timeBetweenEvictionRunsMillis: 60000
spring.datasource.minEvictableIdleTimeMillis: 300000
spring.datasource.validationQuery: select 1 from dual
spring.datasource.testWhileIdle: true
spring.datasource.testOnBorrow: false
spring.datasource.testOnReturn: false
#配置监控统计拦截的filters，去掉后监控界面sql将无法统计,wall用于防火墙
filters: stat, wall, log4j

3.Config配置类