• mysql的驱动类com.mysql.jdbc.Driver过时了,需要用com.mysql.cj.jdbc.Driver代替


    springboot项目整合mybatis,配置文件如下:

    server:
      port: 8081
    mybatis:
      config-location: classpath:mybatis/mybatis-config.xml   #mybatis配置文件所在路径
      type-aliases-package: com.yuanqiao.entities     #所有entity别名类所在包
      mapper-locations: classpath:mybatis/mapper/*.xml
    spring:
      application:
        name: swaggerdemo
      datasource:
        type: com.alibaba.druid.pool.DruidDataSource
        driver-class-name: com.mysql.jdbc.Driver
        url: jdbc:mysql://localhost:3306/springboot?useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC
        username: root
        password: 123456
        dbcp2:
          min-idle: 5         #数据库连接池的最小维持连接数
          initial-size: 5      #初始化连接数
          max-total: 5            #最大连接数
          max-wait-millis: 200      #等待连接获取的最大超时时间

    做sql查询的时候,提示com.mysql.jdbc.Driver已经弃用了。

    Creating a new SqlSession
    SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@5540e55e] was not registered for synchronization because synchronization is not active
    Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.
    2019-07-20 16:16:42.533 INFO 59084 --- [nio-8081-exec-2] com.alibaba.druid.pool.DruidDataSource : {dataSource-1} inited
    JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@366b8e6b] will not be managed by Spring
    ==> Preparing: select * from user where id = ?
    ==> Parameters: 1(Integer)
    <== Columns: id, name, sex, age
    <== Row: 1, zhangsan, male, 22
    <== Total: 1
    Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@5540e55e]

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  • 原文地址:https://www.cnblogs.com/mkl34367803/p/11218145.html
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