Druid实现后台监控

1.pom导入druid数据源和log4j

 <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.23</version>
 </dependency>
  <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
 </dependency>

2.在yml中加入type,配置相关属性

spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://localhost:3306/document5?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull
    username: root
    password: 123456
    type: com.alibaba.druid.pool.DruidDataSource
    
    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

3.配置DruidConfig

@Configuration
public class DruidConfig {

    @Bean
    //绑定yml的配置
    @ConfigurationProperties(prefix = "spring.datasource")
    public DataSource druidDataSource(){
        return new DruidDataSource();
    }

    @Bean
    //后台监控功能
    public ServletRegistrationBean statViewServlet(){
        ServletRegistrationBean<StatViewServlet> bean = new ServletRegistrationBean<>(new StatViewServlet(), "/druid/*");

        //配置后台登录用户
        HashMap<String, String> initParameters = new HashMap<>();
        //登录的key是固定的
        initParameters.put("loginUsername","admin");
        initParameters.put("loginPassword","admin");

        //设置访问权限
        //允许访问
        initParameters.put("allow","");
            //禁止访问
            //initParameters.put("key","IP地址");
        //初始化参数
        bean.setInitParameters(initParameters);
        return  bean;
    }
}

配置完成之后运行效果如下图：

进行登录之后 后台控制如图实现SQL监控