1.Springboot2默认数据库连接池选择了HikariCP为何选择HikariCP
理由一、代码量
理由二、口碑
理由三、速度
理由四、稳定性
理由五、可靠性
2.druid对数据源进行了监控,但是我们知道sharding-jdbc, mycat等都可以监控。
3.我们这里给出一个例子看看怎么使用以及速度如何
4.环境:jdk8,springboot 2.0.2release.
@RestController @Slf4j public class UserController { @Autowired private UserService UserService; @RequestMapping("/user/{id}") public User getById(@PathVariable Long id) { log.info("id={}",id); return UserService.getById(id); } }
logging.level.root=info logging.level.com.security=info server.port=8080 spring.datasource.url=jdbc:mysql://localhost:3306/xxx spring.datasource.username=xxx spring.datasource.password=xxx spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.hikari.minimum-idle=5 spring.datasource.hikari.maximum-pool-size=15 spring.datasource.hikari.connection-test-query=SELECT 1 spring.datasource.hikari.max-lifetime=1800000 spring.datasource.hikari.connection-timeout=30000 spring.datasource.hikari.pool-name=DatebookHikariCP mybatis.type-aliases-package=com.security.model mybatis.mapper-locations=classpath:/mybatis/*
<parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.2.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </dependency> </dependencies>
运行结果:
Located MBean 'dataSource': registering with JMX server as MBean [com.zaxxer.hikari:name=dataSource,type=HikariDataSource]