在 Spring Boot 项目中使用分页插件的两种常见方式示例详解

<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
    <version>版本号</version>
</dependency>

@Configuration
@MapperScan("scan.your.mapper.package")
public class MybatisPlusConfig {
    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor() {
        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
        return interceptor;
    }

@Service
public class UserService {
    @Autowired
    private UserMapper userMapper;
    public IPage<User> getUserPage(int current, int size) {
        Page<User> page = new Page<>(current, size);
        return userMapper.selectPage(page, null);
    }
}

<dependency>
    <groupId>com.github.pagehelper</groupId>
    <artifactId>pagehelper-spring-boot-starter</artifactId>
    <version>版本号</version>
</dependency>

pagehelper:
  helperDialect: mysql
  reasonable: true

@Service
public class UserService {
    @Autowired
    private UserMapper userMapper;
    public PageInfo<User> getUserPage(int pageNum, int pageSize) {
        PageHelper.startPage(pageNum, pageSize);
        List<User> users = userMapper.list();
        return new PageInfo<>(users);
    }
}