Springboot整合MybatisPuls

Maven導入依賴，主要只需導入MyBatisPuls

<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jdbc</artifactId> </dependency> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> <version>3.0.1</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency>

配置數(shù)據(jù)源

spring.datasource.username=rootspring.datasource.password=rootspring.datasource.driver-class-name=com.mysql.cj.jdbc.Driverspring.datasource.url=jdbc:mysql://localhost:3306/springboot?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTCserver.port=8082

編寫實體類

@Data@AllArgsConstructor@NoArgsConstructor@TableName('users')//連接的表名public class Users implements Serializable { @TableId('id')標記該變量為主鍵 private Integer id; private String Account; @TableField('passwraod' )//如果實體類變量和數(shù)據(jù)庫不同使用 private String password; private Integer Authority;}

mapper接口編寫繼承BaseMapper<這里為實體類>

@org.apache.ibatis.annotations.Mapper//讓Spring容器掃描該類為Mapper@Repositorypublic interface Mapper extends BaseMapper<Users> {}

BaseMapper源碼

實現(xiàn)接口方法

@RestControllerpublic class Control { @Autowired Mapper mapper; @RequestMapping('/hello') public Users Select(){ Users users = mapper.selectById(1); return users; }}

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