Spring Boot配置druid监控页功能

1.导入坐标

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.hao</groupId>
    <artifactId>spring-boot-jdbc</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>spring-boot-jdbc</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <mysql.version>8.0.19</mysql.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jdbc</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

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

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.2</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

2.在application.ymal中配置数据源

spring:
  datasource:
    url: jdbc:mysql://localhost:3306/jdbc?serverTimezone=UTC
    username: root
    driver-class-name: com.mysql.cj.jdbc.Driver
    password: hao20001010

3.编写配置类

@Configuration
public class MyDataSourceConfig {

    @ConfigurationProperties("spring.datasource")//与配置文件进行绑定
    @Bean
    public DruidDataSource druidDataSource(){
        return new DruidDataSource();
    }
//配置监控页功能
    @Bean
    public ServletRegistrationBean statsViewServlet(){
        StatViewServlet statViewServlet = new StatViewServlet();
        ServletRegistrationBean<StatViewServlet> bean = new ServletRegistrationBean<>(statViewServlet, "/druid/*");
        return bean;
    }
}

Spring中内置的有数据库连接池，如果使用Druid连接池，需要将该组件导入到容器中

4.运行访问http://localhost:8080/druid

结果：

---

接着通过查询数据库查看SQL监控

编写Controller类

/**
 * @author:抱着鱼睡觉的喵喵
 * @date:2020/12/23
 * @description:
 */
@RestController
public class SqlController {

    @Autowired
    JdbcTemplate jdbcTemplate;

    @GetMapping("/sql")
    public String control(){

        Long query= jdbcTemplate.queryForObject("select count(*) from admin", Long.class);
        return "query";
    }
}

*更改配置类，开启监控功能

@Configuration
public class MyDataSourceConfig {

    @ConfigurationProperties("spring.datasource")
    @Bean
    public DruidDataSource druidDataSource() throws SQLException {
        DruidDataSource dataSource = new DruidDataSource();
        //加入监控功能
        dataSource.setFilters("stat");
        return dataSource;
    }

    @Bean
    public ServletRegistrationBean statsViewServlet(){
        StatViewServlet statViewServlet = new StatViewServlet();
        ServletRegistrationBean<StatViewServlet> bean = new ServletRegistrationBean<>(statViewServlet, "/druid/*");
        return bean;
    }
}

1.访问http://localhost:8080/druid，点开SQL监控
2.打开另外一个页面访问http://localhost:8080/sql
3.刷新监控页出现如下

---

开启Web应用监控

在配置类中导入开启Web应用的组件

/**
 * @author:抱着鱼睡觉的喵喵
 * @date:2020/12/23
 * @description:
 */

@Configuration
public class MyDataSourceConfig {

    @ConfigurationProperties("spring.datasource")
    @Bean
    public DruidDataSource druidDataSource() throws SQLException {
        DruidDataSource dataSource = new DruidDataSource();
        //加入监控功能
        dataSource.setFilters("stat");
        return dataSource;
    }

    @Bean
    public ServletRegistrationBean statsViewServlet(){
        StatViewServlet statViewServlet = new StatViewServlet();
        ServletRegistrationBean<StatViewServlet> bean = new ServletRegistrationBean<>(statViewServlet, "/druid/*");
        return bean;
    }

    /**
     * WebStatFilter 用于采集web-jdbc关联监控的数据
     * @return
     */
    @Bean
    public FilterRegistrationBean webStatFilter(){
        WebStatFilter webStatFilter = new WebStatFilter();
        FilterRegistrationBean<WebStatFilter> filterFilter=new FilterRegistrationBean<>(webStatFilter);
        filterFilter.setUrlPatterns(Arrays.asList("/*"));//拦截所有资源
        //以下资源不拦截*.js,*.gif,*.jpg,*.css等
        filterFilter.addInitParameter("exclusions","*.js,*.gif,*.jpg,*.css,*.ico,/druid/*");
        return filterFilter;
    }
}

2.运行测试
访问http://localhost:8080/sql

查看Web应用监控数据

---

开启防火墙

在filter中添加wall

启动访问http://localhost:8080/druid，点击SQL防火墙

访问http://localhost:8080/sql

再次刷新监控页面

---

开启druid登录功能

在配置类中增加
运行访问http://localhost:8080/druid

---

可以在配置文件进行配置

---

============================================================================================================================================================================================================================================
下面使用ymal配置文件进行配置
导入坐标

 		<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.2.4</version>
        </dependency>

spring:
  datasource:
    url: jdbc:mysql://localhost:3306/jdbc?serverTimezone=UTC
    username: root
    driver-class-name: com.mysql.cj.jdbc.Driver
    password: hao20001010

    druid:
      filters: stat,wall
      aop-patterns: com.hao.boot.*
      stat-view-servlet:
        enabled: true
        login-username: admin
        login-password: admin
        reset-enable: false

      web-stat-filter:
        enabled: true
        url-pattern: /*
        exclusions: '*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*'

      filter:
        stat:
          slow-sql-millis: 1000
          log-slow-sql: true
          enabled: true
        wall:
          enabled: true

再次运行

其他具体操作访问官方文档