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

        <!-- MyBatis-Plus -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.1.1</version>
        </dependency>

        <!--MySQL连接包 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>
        <!--工具包 -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
</dependencies>

//Spring boot方式
@Configuration
@MapperScan("com.baomidou.cloud.service.*.mapper*")
public class MybatisPlusConfig {

     /**
     * 新的分页插件,一缓和二缓遵循mybatis的规则,需要设置 MybatisConfiguration#useDeprecatedExecutor = false 避免缓存出现问题(该属性会在旧插件移除后一同移除)
     */
    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor() {
        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
        return interceptor;
    }
}

/**
     * 分页查询
     */
    @GetMapping("/findPage")
    public List<User> fenye(@RequestParam(value = "page",defaultValue = "1") int page,@RequestParam(value = "size",defaultValue = "10") int size){
    //创建分页对象
        Page<User> paged = new Page<>(page,size);
        List<User> jobInfos = service.selectUserPage(paged);
        return jobInfos;
    }

    @Autowired
    private UserMapper userMapper; //如果爆红也没事,假错误
/**
     * 分页查询
*/
public List<User> selectUserPage(Page<User> page) {
//		调用Mapper接口返回一个page对象
        Page<User> jobInfoPage = userMapper.selectPage(page, null);
        //page对象转list对象
        List<User> records = jobInfoPage.getRecords();
        return records;
    }