SpringBoot整合Druid（阿里巴巴）数据源

（1）、添加相关依赖

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

         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
             <version>8.0.14</version>
         </dependency>

         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>druid</artifactId>
             <version>1.1.12</version>
         </dependency>

（2）、配置配置文件

 spring.datasource.username=root
 spring.datasource.password=123456
 spring.datasource.url=jdbc:mysql://localhost:3306/JdbcDemo?serverTimezone=UTC
 spring.datasource.driver-class-name=com.mysql.jdbc.Driver
 spring.datasource.type=com.alibaba.druid.pool.DruidDataSource

（3）将配置文件自定义属性和自定义数据源绑定（我配置文件中没有自定义属性），配置Druid监控

 package cn.coreqi.config;

 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.sql.DataSource;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Map;

 @Configuration
 public class DruidConfig {
     @Bean
     @ConfigurationProperties(prefix = "spring.datasource")
     public DataSource druid(){
         return new DruidDataSource();
     }

     //配置Druid监控

     //配置Druid管理后台的Servlet
     //还记得如何在SpringBoot中注册Servlet吗？
     @Bean
     public ServletRegistrationBean statViewServlet(){
         ServletRegistrationBean registrationBean = new ServletRegistrationBean(new StatViewServlet(),"/druid/*");
         Map<String,String> initParams = new HashMap<>();
         initParams.put("loginUsername","admin");
         initParams.put("loginPassword","admin");
         registrationBean.setInitParameters(initParams);
         return registrationBean;
     }

     //配置Druid监控的Filter
     //还记得如何在SpringBoot中注册Filter吗？
     @Bean
     public FilterRegistrationBean webStatFilter(){
         FilterRegistrationBean registrationBean = new FilterRegistrationBean(new WebStatFilter());
         Map<String,String> initParams = new HashMap<>();
         initParams.put("exclusions","*.js,*.css,/druid/*");
         registrationBean.setInitParameters(initParams);
         registrationBean.setUrlPatterns(Arrays.asList("/*"));
         return registrationBean;
     }
 }

（4）访问http://localhost:8080/druid