springboot集成druid连接池配置

需要引入的pom

<dependency>
       <groupId>com.alibaba</groupId>
       <artifactId>druid</artifactId>
       <version>1.1.4</version>
    </dependency>

需要在application.properties中添加一些配置

    #mysql连接信息
    spring.datasource.url=jdbc:mysql://127.0.0.1:3306/demo
    #用户名
    spring.datasource.username=demo
    #密码
    spring.datasource.password=123456
    #驱动
    spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
    #数据源类别
    spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
    #初始化大小，最小，最大
    spring.datasource.initialSize=5
    spring.datasource.minIdle=5
    spring.datasource.maxActive=20
    #配置获取连接等待超时的时间，单位毫秒
    spring.datasource.maxWait=60000
    #配置间隔多久进行一次检测，检测需要关闭的空连接，单位毫秒
    spring.datasource.timeBetweenEvictionRunsMillis=60000
    #配置一个连接池中的最小生存时间，单位毫秒
    spring.datasource.minEvictableIdleTimeMillis=300000
    spring.datasource.validationQuery=SELECT 1 FROM DUAL
    spring.datasource.testWhileIdle=true
    spring.datasource.testOnBorrow=false
    spring.datasource.testOnReturn=false
    #打开psCache 并指定每个连接上psCache的大小
    spring.datasource.poolPreparedStatements=true
    spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
    #配置监控统计拦截的filters 去掉监控界面的sql无法统计，wail用于防火墙
    spring.datasource.filters=stat,wall,log4j
    #通过connectionProperties属性打开mergesql功能，慢sql记录
    spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000

springboot添加druid监控平台配置类
DruidConfiguration

    import com.alibaba.druid.support.http.StatViewServlet;
    import com.alibaba.druid.support.http.WebStatFilter;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.boot.web.servlet.FilterRegistrationBean;
    import org.springframework.boot.web.servlet.ServletRegistrationBean;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    
    /**
     * 数据库链接池druid监控平台的配置
     * 访问路径 http://localhost:8080/druid/index.html
     *
     */
    @Configuration
    public class DruidConfiguration {
    
        private static final Logger logger = LoggerFactory.getLogger(DruidConfiguration.class);
    
        @Bean
        public ServletRegistrationBean druidServlet() {
            logger.info("init Druid Servlet Configuration ");
            ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
            // IP白名单
    //        servletRegistrationBean.addInitParameter("allow", "*");
            // IP黑名单(共同存在时，deny优先于allow)
    //        servletRegistrationBean.addInitParameter("deny", "192.168.1.100");
            //控制台管理用户
            servletRegistrationBean.addInitParameter("loginUsername", "admin");
            servletRegistrationBean.addInitParameter("loginPassword", "admin");
            //是否能够重置数据 禁用HTML页面上的“Reset All”功能
            servletRegistrationBean.addInitParameter("resetEnable", "false");
            return servletRegistrationBean;
        }
        @Bean
        public FilterRegistrationBean filterRegistrationBean() {
            FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
            filterRegistrationBean.addUrlPatterns("/*");
            filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
            return filterRegistrationBean;
        }
    }

测试地址

http://localhost:8080/druid/login.html