技術標籤：springbootmybatisspringbootpagehelper

pom.xml

<!--pagehelper分頁外掛-->
<dependency>
    <groupId>com.github.pagehelper</groupId>
    <artifactId>pagehelper-spring-boot-starter</artifactId>
    <version>1.2.12</version>
</dependency>

pojo

@Data
 

public class Book implements Serializable {
    private int id;
    private String bookName;
}

dao

@Mapper
@Repository
public interface BookMapper {
    @Select("select * from book")
    public List<Book> queryAllBooks();
}

service

@Service
public class BookService {
    @Autowired
 

    private BookMapper bookMapper;

    public List<Book> queryAllBooks(@RequestParam("pageIndex") int pageIndex, @RequestParam("pageSize") int pageSize){
        //使用PageHelper
        PageHelper.startPage(pageIndex,pageSize);

        List<Book> books = bookMapper.queryAllBooks
 
();
        PageInfo<Book> pi = new PageInfo<>(books);
        return pi.getList();
    }
}

controller

@RestController
@RequestMapping("/book")
public class BookController {
    @Autowired
    private BookService bookService;
    @GetMapping("/queryAll")
    public String queryAllBooks(@RequestParam("pageIndex") int pageIndex,@RequestParam("pageSize") int pageSize){
        List<Book> books = bookService.queryAllBooks(pageIndex,pageSize);
        return JSON.toJSONString(books);
    }
}

測試

book表中所有資料：

http://localhost:8080/book/queryAll?pageIndex=2&pageSize=5 取第2頁，共5條

[
  {
    bookName: "Python",
    id: 6
  },
  {
    bookName: "C#",
    id: 7
  },
  {
    bookName: "Js",
    id: 8
  },
  {
    bookName: "Spring",
    id: 9
  },
  {
    bookName: "SpringMVC",
    id: 10
  }
]