SpringBoot 2.1.4整合mybatis

项目结构:

maven依赖:

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

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

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

        <dependency>
            <groupId>com.zaxxer</groupId>
            <artifactId>HikariCP</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.2</version>
        </dependency>

</dependencies>

application.yml 配置

spring:
  #数据库配置
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    type: com.zaxxer.hikari.HikariDataSource
    url: jdbc:mysql://129.204.106.179:3306/mybatis_practice?serverTimezone=GMT%2b8&characterEncoding=utf-8
    username: root
    password: Liyueken1
    hikari:
      #连接池最大连接数: cpu核心数*2 + 硬盘数, 默认10 一个连接池一般来讲连接数在10-20个, 根据部署的应用程序数量可以推测出mysql的max_connections值
      maximum-pool-size: 15
      #一个连接idle状态的最大时长(毫秒),超时则被释放(retired),缺省:10分钟
      idle-timeout: 600000
      #一个连接的生命时长(毫秒),超时并且没被使用则被释放(retired),缺省:30分钟。建议设置比数据库超时时长少30秒,參考MySQL wait_timeout參数(show variables like '%timeout%';)
      max-lifetime: 1800000
      #等待连接池分配连接的最大时长(毫秒),超过这个时长还没可用的连接则发生SQLException。 缺省:30秒
      connection-timeout: 30000
      connection-test-query: SELECT 1

#mybatis配置
mybatis:
  #实体存放路径
  type-aliases-package: com.liyk.mybatis.bean
  #xml存放路径
  mapper-locations: classpath:mapper/*.xml
  #开启驼峰命名
  configuration:
    map-underscore-to-camel-case: true

启动类:

@SpringBootApplication
@MapperScan(basePackages = "com.liyk.mybatis.dao")
public class MybatisApplication {

    public static void main(String[] args) {
        SpringApplication.run(MybatisApplication.class, args);
    }
}

 

 
posted @ 2020-03-25 15:14  恳小跃  阅读(672)  评论(0编辑  收藏  举报