1：yml 配置

spring:datasource:dynamic:datasource:master:url: jdbc:mysql://192.168.11.50:3306/dsdd?characterEncoding=UTF-8&useUnicode=true&useSSL=false&tinyInt1isBit=false&allowPublicKeyRetrieval=true&serverTimezone=UTCusername: rootpassword: rootdriver-class-name: com.mysql.cj.jdbc.Driversecond-datasource:url: jdbc:mysql://192.168.11.50:3306/commons_utils?characterEncoding=UTF-8&useUnicode=true&useSSL=false&tinyInt1isBit=false&allowPublicKeyRetrieval=true&serverTimezone=UTCusername: rootpassword: rootdriver-class-name: com.mysql.cj.jdbc.Driver

2：必须pom依赖配

        <!-- 动态数据源 --><dependency><groupId>com.baomidou</groupId><artifactId>dynamic-datasource-spring-boot-starter</artifactId><version>3.2.0</version></dependency>

2-1：不要加入一下依赖不然会报以下错误

        <dependency><groupId>com.h2database</groupId><artifactId>h2</artifactId><version>1.4.200</version><scope>runtime</scope></dependency><!-- druid --><dependency><groupId>com.alibaba</groupId><artifactId>druid-spring-boot-starter</artifactId><version>1.2.6</version></dependency>

在这里插入图片描述

2-2：当出现以上错误可以在yml配置文件去掉DruidDataSourceAutoConfigure，如下

spring:autoconfigure:exclude: com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceAutoConfigure

3：加入druid管理

spring:autoconfigure:exclude: com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceAutoConfiguredatasource:druid:stat-view-servlet:enabled: trueloginUsername: adminloginPassword: 123456allow:web-stat-filter:enabled: truedynamic:druid: # 全局druid参数，绝大部分值和默认保持一致。(现已支持的参数如下,不清楚含义不要乱设置)# 连接池的配置信息# 初始化大小，最小，最大initial-size: 5min-idle: 5maxActive: 20# 配置获取连接等待超时的时间rmaxWait: 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: 300000validationQuery: SELECT 1 FROM DUALtestWhileIdle: truetestOnBorrow: falsetestOnReturn: false# 打开PSCache，并且指定每个连接上PSCache的大小poolPreparedStatements: truemaxPoolPreparedStatementPerConnectionSize: 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,slf4j# 通过connectProperties属性来打开mergeSql功能；慢SQL记录connectionProperties: druid.stat.mergeSql\=true;druid.stat.slowSqlMillis\=5000datasource:master:url: jdbc:mysql://192.168.11.50:3306/dsdd?characterEncoding=UTF-8&useUnicode=true&useSSL=false&tinyInt1isBit=false&allowPublicKeyRetrieval=true&serverTimezone=UTCusername: rootpassword: rootdriver-class-name: com.mysql.cj.jdbc.Driversecond:url: jdbc:mysql://192.168.11.50:3306/commons_utils?characterEncoding=UTF-8&useUnicode=true&useSSL=false&tinyInt1isBit=false&allowPublicKeyRetrieval=true&serverTimezone=UTCusername: rootpassword: rootdriver-class-name: com.mysql.cj.jdbc.Driver

3-1：加入依赖

        <!-- 动态数据源 --><dependency><groupId>com.baomidou</groupId><artifactId>dynamic-datasource-spring-boot-starter</artifactId><version>3.2.0</version></dependency><!-- druid --><dependency><groupId>com.alibaba</groupId><artifactId>druid-spring-boot-starter</artifactId><version>1.2.6</version></dependency>

3-2：DruidConfig 配置类

package com.example.poi.config;import com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceAutoConfigure;
import com.alibaba.druid.spring.boot.autoconfigure.properties.DruidStatProperties;
import com.alibaba.druid.util.Utils;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;import javax.servlet.*;
import java.io.IOException;/*** @Description: DruidConfig配置类*/
@Configuration
@AutoConfigureAfter(DruidDataSourceAutoConfigure.class)
public class DruidConfig {/*** 带有广告的common.js全路径，druid-1.1.14*/private static final String FILE_PATH = "support/http/resources/js/common.js";/*** 原始脚本，触发构建广告的语句*/private static final String ORIGIN_JS = "this.buildFooter();";/*** 替换后的脚本*/private static final String NEW_JS = "//this.buildFooter();";/*** 去除Druid监控页面的广告** @param properties DruidStatProperties属性集合* @return {@link FilterRegistrationBean}*/@Bean@ConditionalOnWebApplication@ConditionalOnProperty(name = "spring.datasource.druid.stat-view-servlet.enabled", havingValue = "true")public FilterRegistrationBean<RemoveAdFilter> removeDruidAdFilter(DruidStatProperties properties) throws IOException {// 获取web监控页面的参数DruidStatProperties.StatViewServlet config = properties.getStatViewServlet();// 提取common.js的配置路径String pattern = config.getUrlPattern() != null ? config.getUrlPattern() : "/druid/*";String commonJsPattern = pattern.replaceAll("\\*", "js/common.js");// 获取common.jsString text = Utils.readFromResource(FILE_PATH);// 屏蔽 this.buildFooter(); 不构建广告final String newJs = text.replace(ORIGIN_JS, NEW_JS);FilterRegistrationBean<RemoveAdFilter> registration = new FilterRegistrationBean<>();registration.setFilter(new RemoveAdFilter(newJs));registration.addUrlPatterns(commonJsPattern);return registration;}/*** 删除druid的广告过滤器** @author BBF*/private class RemoveAdFilter implements Filter {private final String newJs;public RemoveAdFilter(String newJs) {this.newJs = newJs;}@Overridepublic void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)throws IOException, ServletException {chain.doFilter(request, response);// 重置缓冲区，响应头不会被重置response.resetBuffer();response.getWriter().write(newJs);}}
}