<dependency>

            <groupId>mysql</groupId>

            <artifactId>mysql-connector-java</artifactId>

        </dependency>

        <dependency>

            <groupId>com.alibaba</groupId>

            <artifactId>druid</artifactId>

            <version>1.0.26</version>

        </dependency>

package com.neo.conf;

import javax.sql.DataSource;

import org.springframework.boot.context.properties.ConfigurationProperties;

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;

import org.springframework.context.annotation.PropertySource;

import com.alibaba.druid.pool.DruidDataSource;

import com.alibaba.druid.support.http.StatViewServlet;

import com.alibaba.druid.support.http.WebStatFilter;

@Configuration

@ConfigurationProperties(value = "classpath:druid.properties")

public class DruidConfiguration {

    @Bean(destroyMethod = "close", initMethod = "init")

    @ConfigurationProperties(prefix = "spring.datasource")

    public DataSource druidDataSource() {

        DruidDataSource druidDataSource = new DruidDataSource();

        return druidDataSource;

    }

    /**

     * 注册一个StatViewServlet

     * @return

     */

    @Bean

    public ServletRegistrationBean druidStatViewServlet(){

        //org.springframework.boot.context.embedded.ServletRegistrationBean提供类的进行注册.

        ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(),"/druid/*");

        //添加初始化参数：initParams

        //白名单：

        servletRegistrationBean.addInitParameter("allow","127.0.0.1,192.168.31.77");

        //IP黑名单 (存在共同时，deny优先于allow) : 如果满足deny的话提示:Sorry, you are not permitted to view this page.

        servletRegistrationBean.addInitParameter("deny","192.168.1.73");

        //登录查看信息的账号密码.

        servletRegistrationBean.addInitParameter("loginUsername","admin");

        servletRegistrationBean.addInitParameter("loginPassword","123456");

        //是否能够重置数据.

        servletRegistrationBean.addInitParameter("resetEnable","false");

        return servletRegistrationBean;

    }

    /**

     * 注册一个：filterRegistrationBean

     * @return

     */

    @Bean

    public FilterRegistrationBean druidStatFilter(){

        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());

        //添加过滤规则.

        filterRegistrationBean.addUrlPatterns("/*");

        //添加不需要忽略的格式信息.

        filterRegistrationBean.addInitParameter("exclusions","*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");

        return filterRegistrationBean;

    }

}

spring.datasource.driverClassName=com.mysql.jdbc.Driver

spring.datasource.url=jdbc:mysql://localhost:3306/mycine?useUnicode=true&characterEncoding=utf8&autoReconnect=true

spring.datasource.username=root

spring.datasource.password=root

#--------------------------

# 下面为连接池的补充设置，应用到上面所有数据源中

# 初始化大小，最小，最大

spring.datasource.initialSize=5

spring.datasource.minIdle=5

spring.datasource.maxActive=50

# 配置获取连接等待超时的时间

spring.datasource.maxWait=60000

# 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

spring.datasource.timeBetweenEvictionRunsMillis=60000

# 配置一个连接在池中最小生存的时间，单位是毫秒

spring.datasource.minEvictableIdleTimeMillis=300000

spring.datasource.validationQuery=SELECT 1

spring.datasource.testWhileIdle=true

spring.datasource.testOnBorrow=false

spring.datasource.testOnReturn=false

# 打开PSCache，并且指定每个连接上PSCache的大小

spring.datasource.poolPreparedStatements=false

#spring.datasource.maxPoolPreparedStatementPerConnectionSize=20

# 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙

#spring.datasource.filters=stat,wall,log4j

spring.datasource.filters=stat

# 通过connectProperties属性来打开mergeSql功能；慢SQL记录

spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000

# 合并多个DruidDataSource的监控数据

#spring.datasource.useGlobalDataSourceStat=true