使用DriverManagerDataSource

修改yml

#端口 server:port: 8080 spring:#數(shù)據(jù)源datasource:url: jdbc:mysql://127.0.0.1:3306/dd?useUnicode=true&characterEncoding=utf8&useSSL=truedriver-class-name: com.mysql.cj.jdbc.Driverusername: rootpassword: root#配置數(shù)據(jù)源的類(lèi)型type: org.springframework.jdbc.datasource.DriverManagerDataSource

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使用DBCP

修改pom.xml引入dbcp的包

<!--加入Dbcp的依賴(lài)--> <dependency><groupId>org.apache.commons</groupId><artifactId>commons-dbcp2</artifactId> </dependency> #端口 server:port: 8080 spring:#數(shù)據(jù)源datasource:url: jdbc:mysql://127.0.0.1:3306/dym11?useUnicode=true&characterEncoding=utf8&useSSL=truedriver-class-name: com.mysql.cj.jdbc.Driverusername: rootpassword: root#配置數(shù)據(jù)源的類(lèi)型type: org.apache.commons.dbcp2.BasicDataSourcetype: org.springframework.jdbc.datasource.DriverManagerDataSource

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使用druid【自己寫(xiě)自動(dòng)配置類(lèi)】

修改pom.xml加入druid的依賴(lài)

<!-- https://mvnrepository.com/artifact/com.alibaba/druid --> <dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.1.21</version> </dependency>

創(chuàng)建配置類(lèi)MyDruidAutoConfiguration

package com.sxt.config;import com.alibaba.druid.pool.DruidDataSource; import com.alibaba.druid.support.http.StatViewServlet; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.autoconfigure.condition.ConditionalOnClass; import org.springframework.boot.context.properties.EnableConfigurationProperties; import org.springframework.boot.web.servlet.ServletRegistrationBean; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration;@Configuration @ConditionalOnClass(value = {DruidDataSource.class}) @EnableConfigurationProperties(MyDruidProperties.class) //把MyDruidProperties類(lèi)注入到ioc容器中 public class MyDruidAutoConfiguration {private Log log= LogFactory.getLog(MyDruidAutoConfiguration.class);@Autowiredprivate MyDruidProperties properties;/*** 創(chuàng)建DataSource*/@Bean(initMethod = "init")public DruidDataSource druidDataSource(){DruidDataSource dataSource=new DruidDataSource();if(null==properties.getUrl()){log.error("url can not be null");throw new RuntimeException("url can not be null");}dataSource.setDriverClassName(properties.getDriverClassName());dataSource.setUrl(properties.getUrl());dataSource.setUsername(properties.getUsername());dataSource.setPassword(properties.getPassword());dataSource.setMaxActive(properties.getMaxActive());dataSource.setMinIdle(properties.getMinIdle());dataSource.setMaxIdle(properties.getMaxIdle());dataSource.setInitialSize(properties.getInitialSize());dataSource.setValidationQuery(properties.getValidationQuery());return dataSource;}/*** 注冊(cè)監(jiān)聽(tīng)頁(yè)面的Servlet*/@Bean@ConditionalOnClass(value = {StatViewServlet.class})public ServletRegistrationBean<StatViewServlet> registrationBeanStatViewServlet(){//創(chuàng)建注冊(cè)器ServletRegistrationBean<StatViewServlet> bean=new ServletRegistrationBean<>();//創(chuàng)建ServletStatViewServlet servlet=new StatViewServlet();//注冊(cè)bean.setServlet(servlet);//注入相關(guān)參數(shù)bean.addInitParameter("loginUsername",properties.getStatView().getLoginUsername());bean.addInitParameter("loginPassword",properties.getStatView().getLoginPassword());bean.addInitParameter("allow",properties.getStatView().getAllow());bean.addInitParameter("deny",properties.getStatView().getDeny());if(properties.getStatView().getUrlMapping()==null||properties.getStatView().getUrlMapping().length==0){log.error("監(jiān)控的urlMapping不能為空");throw new RuntimeException("監(jiān)控的urlMapping不能為空");}//設(shè)置映射bean.addUrlMappings(properties.getStatView().getUrlMapping());return bean;} }

創(chuàng)建屬性類(lèi)MyDruidProperties

package com.sxt.config;import lombok.Data; import org.springframework.boot.context.properties.ConfigurationProperties;@Data @ConfigurationProperties(prefix = "spring.druid") public class MyDruidProperties {private String driverClassName;private String url;private String username;private String password;private Integer initialSize;private Integer maxActive;private Integer minIdle;private Integer maxIdle;private String validationQuery; //連接檢查語(yǔ)句private StatView statView;@Datastatic class StatView{//監(jiān)控的屬性private String loginUsername;private String loginPassword;private String allow;private String deny;private String [] urlMapping;} }

修改yml

spring:#數(shù)據(jù)源druid:url: jdbc:mysql://127.0.0.1:3306/dd?useUnicode=true&characterEncoding=utf8&useSSL=true&serverTimezone=UTCdriver-class-name: com.mysql.cj.jdbc.Driverusername: rootpassword: rootmax-active: 20initial-size: 5min-idle: 5max-idle: 10validation-query: select 1stat-view:login-username: adminlogin-password: adminallow:deny:url-mapping:- "/druid/*"

排除DataSoruceAutoConfiguration

package com.sxt;import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;//啟動(dòng)時(shí)排除DataSourceAutoConfiguration自動(dòng)配置類(lèi)的加載 @SpringBootApplication(exclude = {DataSourceAutoConfiguration.class}) public class Application {public static void main(String[] args) {SpringApplication.run(Application.class, args);}}

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數(shù)據(jù)源加載不出來(lái)

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