SpringBoot 使用druid监控数据库

1、添加maven依赖注解

        <dependency>
            <groupId>com.alibabagroupId>
            <artifactId>druidartifactId>
            <version>1.1.3version>
        dependency>

2、配置application.yml文件，添加druid配置

druid:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://192.168.1.113:3306/test?useUnicode=true&characterEncoding=utf-8
    username: root
    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
    initialSize: 5
    minIdle: 5
    maxActive: 20
    # 配置获取连接等待超时的时间
    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
    timeBetweenEvictionRunsMillis: 60000
    # 配置一个连接在池中最小生存的时间，单位是毫秒
    minEvictableIdleTimeMillis: 300000
    validationQuery: SELECT 1 FROM DUAL
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    # 打开PSCache，并且指定每个连接上PSCache的大小
    poolPreparedStatements: true
    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
    filters: stat,wall,log4j
    # 通过connectProperties属性来打开mergeSql功能；慢SQL记录
    connectionProperties:
      druid:
        stat:
          mergeSql: true
          slowSqlMillis: 5000
    # 合并多个DruidDataSource的监控数据

3、添加控制类DruidDBConfig

/**
 * druid
 * @author 陈梓平
 * @date 2017/9/26.
 */
@Configuration
public class DruidDBConfig {
    private Logger logger = LoggerFactory.getLogger(DruidDBConfig.class);
    public static final String DRUIDDBCONFIG_YML = "druid";
    @Bean(name = "druidDB")
    @ConfigurationProperties(prefix = DruidDBConfig.DRUIDDBCONFIG_YML)
    public DataSource druidDataSource() {
        return DataSourceBuilder.create().build();
    }
}

4、配置druid的启动filter

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

import javax.servlet.annotation.WebFilter;
import javax.servlet.annotation.WebInitParam;

@WebFilter(filterName="druidWebStatFilter",urlPatterns="/*",
        initParams={
                @WebInitParam(name="exclusions",value="*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*")// 忽略资源
        }
)
public class DruidStatFilter extends WebStatFilter {
}

5、配置druid的启动视图控制

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

import javax.servlet.annotation.WebInitParam;
import javax.servlet.annotation.WebServlet;
@SuppressWarnings("serial")
@WebServlet(urlPatterns = "/druid/*",
        initParams={
                @WebInitParam(name="allow",value="192.168.1.113,127.0.0.1"),// IP白名单 (没有配置或者为空，则允许所有访问)
                @WebInitParam(name="deny",value="192.168.1.112"),// IP黑名单 (存在共同时，deny优先于allow)
                @WebInitParam(name="loginUsername",value="admin"),// 用户名
                @WebInitParam(name="loginPassword",value="123456"),// 密码
                @WebInitParam(name="resetEnable",value="false")// 禁用HTML页面上的“Reset All”功能
 })
public class DruidStatViewServlet extends StatViewServlet {
}

6、在启动application类中添加注解

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletComponentScan;

@SpringBootApplication
@ServletComponentScan
public class SpringbootDatasourceDemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringbootDatasourceDemoApplication.class, args);
    }
}

7、测试
访问http://192.168.1.113:8081/druid/login.html

使用配置的账号密码登录（admin，123456）

即可查看数据库相关信息