sprongboot配置druid数据源使用druid监控

	<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.10</version>
        </dependency>

#使用 MySQL 8.0以上的连接驱动，需要在URL后面加上时区，GMT%2B8代表中国时区，不然不是去错误
#spring.datasource.url=jdbc:mysql://127.0.0.1:3306/spring_example?serverTimezone=GMT%2B8
#使用 MySQL 8.0以上的连接驱动包需要使用一下类作为驱动类
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/spring_example?serverTimezone=GMT%2B8&useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&createDatabaseIfNotExist=true&useSSL=false
#数据库用户名
spring.datasource.username=root
#数据库密码
spring.datasource.password=root
 
#数据源类型
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
#数据源其他配置, DataSourceProperties中没有相关属性,默认无法绑定
spring.datasource.initialSize=8
spring.datasource.minIdle=5
spring.datasource.maxActive=20
spring.datasource.maxWait=60000
spring.datasource.timeBetweenEvictionRunsMillis=60000
spring.datasource.minEvictableIdleTimeMillis=300000
spring.datasource.validationQuery=SELECT 1 FROM DUAL
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
spring.datasource.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
spring.datasource.filters=stat,wall,logback
spring.datasource.maxPoolPreparedStatementPerConnectionSize=25
spring.datasource.useGlobalDataSourceStat=true
spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
 
#设置数据库表名和字段名命名规则
spring.jpa.hibernate.naming.physical-strategy=org.springframework.boot.orm.jpa.hibernate.SpringPhysicalNamingStrategy
#自动建表
spring.jpa.generate-ddl=true
#显示SQL语句
spring.jpa.show-sql=true
#设置Mysql数据库类型类型
spring.jpa.database-platform=org.hibernate.dialect.MySQL5InnoDBDialect

import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
import javax.sql.DataSource;
 
/**
* 绑定Druid相关信息
*/
@Configuration
public class DruidDataSourceConfiguration {
 
   /**
    * 绑定Druid相关信息
    * @return 数据源
    */
   @ConfigurationProperties(prefix = "spring.datasource")
   @Bean
   public DataSource druidDataSource(){
       return new DruidDataSource();
   }
}

package com.example.springboot.configuration;
 
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.Arrays;
import java.util.HashMap;
import java.util.Map;
 
/**
 * 绑定Druid相关信息
 */
@Configuration
public class DruidDataSourceConfiguration {
 
    /**
     * 绑定Druid相关信息
     * @return 数据源
     */
    @ConfigurationProperties(prefix = "spring.datasource")
    @Bean
    public DataSource druidDataSource() {
        return new DruidDataSource();
    }
 
    /**
     * 配置一个druid的监控
     * 1.配置一个druid的后台管理Servlet
     * 2.配置一个druid的filter
     */
    //1. 使用StatViewServlet配置一个druid的后台管理Servlet
    @Bean
    public ServletRegistrationBean statViewServlet() {
        //配置/druid/*请求
        ServletRegistrationBean<StatViewServlet> bean = new ServletRegistrationBean<>(new StatViewServlet(), "/druid/*");
        //设置初始化参数值
        Map<String, String> initParam = new HashMap<>();
        //配置登录用户名
        initParam.put(StatViewServlet.PARAM_NAME_USERNAME, "root");
        //配置登录密码
        initParam.put(StatViewServlet.PARAM_NAME_PASSWORD, "1234");
        //如果不写，则默认所有ip都可以访问
        initParam.put(StatViewServlet.PARAM_NAME_ALLOW, "");
        //禁止访问的IP地址
        initParam.put(StatViewServlet.PARAM_NAME_DENY, "192.168.3.8");
 
        //设置初始化参数
        bean.setInitParameters(initParam);
        return bean;
    }
 
    //2.使用WebStatFilter配置一个druid的filter
    @Bean
    public FilterRegistrationBean webStatFilter() {
        FilterRegistrationBean<Filter> bean = new FilterRegistrationBean<>();
        //添加过滤器
        bean.setFilter(new WebStatFilter());
 
        //设置初始化参数
        Map<String, String> initParam = new HashMap<>();
        //设置不拦截的请求
        initParam.put(WebStatFilter.PARAM_NAME_EXCLUSIONS, "*.js,*.css,/druid/*");
        //设置初始化参数
        bean.setInitParameters(initParam);
 
        //设置拦截请求
        bean.setUrlPatterns(Arrays.asList("/*"));
        return bean;
    }
}