连接池maven地址:

        <!--druid连接池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.22</version>
        </dependency>

application.yml配置:

spring:
  datasource:
    #   数据源基本配置
    url: jdbc:mysql://*.*.*.*:3306/lt?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8
    username: *
    password: *
    driver-class-name: com.mysql.cj.jdbc.Driver
    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

配置类

image.png

数据源绑定:

image.png
image.png

连接池监控及filter拦截器

package cn.hm1006.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.servlet.Filter;
import javax.sql.DataSource;
import java.util.HashMap;

@Configuration
public class DruidConfig {

    /**
     *绑定数据源配置
     */
    @ConfigurationProperties(prefix = "spring.datasource")
    @Bean
    public DataSource dataSource(){
        return new DruidDataSource();
    }

    /**
     * 配置监控服务器
     * @return 返回监控注册的servlet对象
     */
    @Bean
    public ServletRegistrationBean statViewServlet(){
        ServletRegistrationBean<StatViewServlet> bean = new ServletRegistrationBean<>(new StatViewServlet(),"/druid/*");

        //方式一:
        HashMap<String, String> map = new HashMap<>();
        //增强配置      登录key密码key固定的 loginUsername  loginPassword
        map.put("loginUsername","admin");
        map.put("loginPassword","123456");
        //允许谁能访问
        map.put("allow","");
/*        // 添加IP白名单
        map.put("allow", "127.0.0.1");
        // 添加IP黑名单,当白名单和黑名单重复时,黑名单优先级更高
        map.put("deny", "127.0.0.1");
        // 是否能够重置数据
        map.put("resetEnable", "false");*/
        bean.setInitParameters(map);

//        //方式二:
//        // 添加IP白名单
//        bean.addInitParameter("allow", "127.0.0.1");
//        // 添加IP黑名单,当白名单和黑名单重复时,黑名单优先级更高
//        bean.addInitParameter("deny", "127.0.0.1");
//        // 添加控制台管理用户
//        bean.addInitParameter("loginUsername", "admin");
//        bean.addInitParameter("loginPassword", "123456");
//        // 是否能够重置数据
//        bean.addInitParameter("resetEnable", "false");

        return bean;
    }

    /**
     * 配置服务过滤器
     * @return 返回过滤器配置对象
     */
    @Bean
    public FilterRegistrationBean FilterRegistration(){
        FilterRegistrationBean<Filter> bean = new FilterRegistrationBean<>();
        //方式一:
        bean.setFilter(new WebStatFilter());
        //过滤那些请求
        HashMap<String, String> initParameters = new HashMap<>();
        //排除不拦截的请求、exclusions
        initParameters.put("exclusions","*.js,*.css,/druid/*");
        bean.setInitParameters(initParameters);
//        //方式二:
//        // 添加过滤规则
//        bean.addUrlPatterns("/*");
//        // 忽略过滤格式
//        bean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*,");

        return bean;
    }
}

配置完后启动SpringBoot程序访问:
http://localhost:8080/druid/ 就可以来到登录页面,就是上面添加的控制台管理用户,可以在上面很好的看到运行状况。

Q.E.D.


如人饮水、冷暖自知