springboot 怎么整合Druid ，已经连接了mysql

要在Spring Boot项目中整合Druid连接池，您需要执行以下步骤：

1. 在pom.xml文件中添加Druid的依赖：
   xml

   <dependency>
       <groupId>com.alibaba</groupId>
       <artifactId>druid-spring-boot-starter</artifactId>
       <version>1.1.10</version>
   </dependency>
   在application.properties或application.yml文件中配置Druid连接池和MySQL数据库连接信息。以下是一个application.properties配置示例：
   arduino

   # 数据源基本配置
   spring.datasource.url=jdbc:mysql://localhost:3306/your_database?useSSL=false&serverTimezone=UTC
   spring.datasource.username=your_username
   spring.datasource.password=your_password
   spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver

   # 使用Druid数据源
   spring.datasource.type=com.alibaba.druid.pool.DruidDataSource

   # Druid连接池配置
   spring.datasource.druid.initial-size=5
   spring.datasource.druid.min-idle=5
   spring.datasource.druid.max-active=20
   spring.datasource.druid.max-wait=60000
   spring.datasource.druid.time-between-eviction-runs-millis=60000
   spring.datasource.druid.min-evictable-idle-time-millis=300000
   spring.datasource.druid.validation-query=SELECT 1 FROM DUAL
   spring.datasource.druid.test-while-idle=true
   spring.datasource.druid.test-on-borrow=false
   spring.datasource.druid.test-on-return=false
   spring.datasource.druid.pool-prepared-statements=true
   spring.datasource.druid.max-pool-prepared-statement-per-connection-size=20
   spring.datasource.druid.filters=stat,wall
   spring.datasource.druid.use-global-data-source-stat=true
   （可选）配置Druid监控。要启用Druid的监控功能，您需要在项目中创建一个配置类，如下所示：
   java

   package com.example.demo.config;

   import com.alibaba.druid.support.http.StatViewServlet;
   import com.alibaba.druid.support.http.WebStatFilter;
   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 java.util.HashMap;
   import java.util.Map;

   @Configuration
   public class DruidConfig {

       @Bean
       public ServletRegistrationBean<StatViewServlet> druidStatViewServlet() {
           ServletRegistrationBean<StatViewServlet> bean = new ServletRegistrationBean<>(new StatViewServlet(), "/druid/*");
           Map<String, String> initParams = new HashMap<>();
           initParams.put("loginUsername", "admin");
           initParams.put("loginPassword", "123456");
           initParams.put("resetEnable", "false");
           initParams.put("allow", ""); // 默认允许所有访问
           // initParams.put("deny", "192.168.1.100"); // 指定IP黑名单，与allow同时存在时，deny优先于allow
           bean.setInitParameters(initParams);
           return bean;
       }

       @Bean
       public FilterRegistrationBean<WebStatFilter> druidWebStatFilter() {
           FilterRegistrationBean<WebStatFilter> bean = new FilterRegistrationBean<>(new WebStatFilter());
           bean.addUrlPatterns("/*");
           bean.addInitParameter("exclusions", "*.js,*.css,/druid/*,*.gif,*.jpg,*.png,*.ico,*.woff,*.woff2");
           return bean;
       }
   }
   这将启用Druid的监控功能后，您可以通过浏览器访问http://localhost:8080/druid（假设您的应用运行在端口8080上）来查看Druid监控页面。在此页面上，可以查看数据源和SQL统计信息，以帮助了解和优化数据库性能。

   通过上述步骤，已成功将Druid连接池整合到Spring Boot项目中，并启用了Druid的监控功能。