springboot整合druid连接池的步骤

使用springboot默认的连接池

导入springboot data-jdbc依赖

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

配置文件配置连接池

spring: datasource: username: root password: 5201314 url: jdbc:mysql:///jqmb?serverTimezone=UTC driver-class-name: com.mysql.cj.jdbc.Driver

springboot默认的连接池

@Autowired DataSource dataSource; @Test void contextLoads() { System.out.println(dataSource.getClass()); System.out.println('____________________________________'); }

使用连接池druid

导入druid依赖

<dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.18</version> </dependency>

配置文件配置druid的属性

spring: datasource: username: root password: 5201314 url: jdbc:mysql:///jqmb?serverTimezone=UTC driver-class-name: com.mysql.cj.jdbc.Driver type: com.alibaba.druid.pool.DruidDataSource initialSize: 5 minIdle: 5 maxActive: 20 maxWait: 60000 timeBetweenEvictionRunsMillis: 60000 minEvictableIdleTimeMillis: 300000 validationQuery: SELECT 1 FROM DUAL testWhileIdle: true testOnBorrow: false testOnReturn: false poolPreparedStatements: true filters: stat,wall,log4j maxPoolPreparedStatementPerConnectionSize: 20 useGlobalDataSourceStat: true connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500

配置类中对druid属性进行绑定

@Configurationpublic class DataSource_Druid_Configure { @ConfigurationProperties(prefix = 'spring.datasource') @Bean public DruidDataSource getDataSour(){ return new DruidDataSource(); }

配置Druid的监控后台

//配置Druid的监控 //1、配置一个管理后台的Servlet @Bean public ServletRegistrationBean statViewServlet(){ ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(), '/druid/*'); Map<String,String> initParams = new HashMap<>(); initParams.put('loginUsername','admin');//登录用户名 initParams.put('loginPassword','123456');//登录密码 initParams.put('allow','');//默认就是允许所有访问 initParams.put('deny','192.168.15.21');//拒绝访问 bean.setInitParameters(initParams); return bean; } //2、配置一个web监控的filter @Bean public FilterRegistrationBean webStatFilter(){ FilterRegistrationBean bean = new FilterRegistrationBean(); bean.setFilter(new WebStatFilter()); Map<String,String> initParams = new HashMap<>(); initParams.put('exclusions','*.js,*.css,/druid/*'); bean.setInitParameters(initParams); bean.setUrlPatterns(Arrays.asList('/*')); return bean; }

访问http://localhost:8090/druid/login.html

如果sql监控失效需要导入log4j 依赖

<dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency>

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