Springboot整合Druid数据源

1.创建springboot项目，引入maven依赖

		<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.21</version>
        </dependency>

        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>

2.application配置文件

spring:
  datasource:
    url: jdbc:mysql://127.0.0.1:3306/admin?serverTimezone=CTT
    username: root
    password: root
    driver-class-name: com.alibaba.druid.proxy.DruidDriver
    type: com.alibaba.druid.pool.DruidDataSource
    #   数据源其他配置
    initialSize: 5
    minIdle: 5
    maxActive: 20
    maxWait: 60000
    timeBetweenEvictionRunsMillis: 60000
    minEvictableIdleTimeMillis: 300000
    validationQuery: SELECT 1 FROM DUAL
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    poolPreparedStatements: true
    #   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
    filters: stat,wall,log4j
    maxPoolPreparedStatementPerConnectionSize: 20
    useGlobalDataSourceStat: true
    connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
server:
  port: 9072

3.Druid数据源自动配置类

package com.example.admin01.config;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
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 javax.sql.DataSource;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

/**
 * @author：ygl
 * @create：2020/1/4 11:30
 * @description：Druid数据源自动配置类
 */
@Configuration
public class DruidConfig {

    @ConfigurationProperties(prefix = "spring.datasource")
    @Bean
    public DataSource druid(){
        return new DruidDataSource();
    }

    /**
     *
     * 配置一个管理后台的Servlet
     *
     */
    @Bean
    public ServletRegistrationBean statViewServlet(){
        ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
        Map<String,String> initParams = new HashMap<>();
        //设置后台的用户名，密码
        initParams.put("Username","root");
        initParams.put("Password","root");
        //默认是全部允许
        initParams.put("allow","");
        bean.setInitParameters(initParams);
        return bean;
    }

    /**
     *
     * 配置一个web监控的filter
     *
     */
    @Bean
    public FilterRegistrationBean webStatFilter(){
        FilterRegistrationBean bean = new FilterRegistrationBean(new WebStatFilter());

        Map<String,String> initParams = new HashMap<>();
        //设置filter初始化参数
        initParams.put("exclusions","*.js,*css,/druid/*");
        bean.setInitParameters(initParams);
        //拦截所有请求
        bean.setUrlPatterns(Arrays.asList("/*"));
        return bean;

    }

}

4.启动项目，访问http://localhost:9072/druid