如果看了不會的 請先看上一篇 步驟

如果程式碼有不懂得：q ：15025525254 

1.實體類定義：

@Entity
public class Girl {

@Id
@GeneratedValue
private Integer id ;
private String cupSize;
private Integer age;

// 省略setter和getter
}

2.實現對Gilr物件的操作介面：

@RestController
public class GirlController {
@Autowired
private GrilController girlRepository;

@Autowired

//private GirlServce girlServce;


@GetMapping(value = "/girls")

public List<Girl> girlList(){
return girlRepository.findAll();
}
@PostMapping(value = "/girls")
public Girl girlAdd ( @RequestParam ("cupSize")String cupSize, @RequestParam("age") Integer age){
Girl girl = new Girl();
girl.setCupSize(cupSize);
girl.setAge(age);
return girlRepository.save(girl);

}
//查詢
@GetMapping(value = "girls/{id}")
public Girl girlFindone(@PathVariable("id") Integer id){
return girlRepository.findOne(id);
}



//新增
@PostMapping(value = "girlsup")
public Girl up(@RequestBody Girl girl){
Girl girl1 = new Girl();
girl1.setCupSize(girl.getCupSize());
girl1.setAge(girl.getAge());
return   girlRepository.save(girl1);

}
//刪除
@DeleteMapping(value = "girlsqq/")
public void girlUpdate(@RequestParam("id") Integer id){
girlRepository.delete(id);
}
// @PostMapping(value = "/girls/two")
// public void girlTwo(){
// girlServce.inserTwo();
// }
//修改
@PostMapping(value="update")  
    public Girl  girl(@RequestBody Girl girl)  
    {   
 
        Girl girll =new Girl();
        
        girl.setId(girl.getId());
        girll.setCupSize(girl.getCupSize());
girll.setAge(girl.getAge());
        
     
        return   girlRepository.saveAndFlush(girll);
    }  



//分頁查詢
@PostMapping("/fenye")
public Page<Girl> page(){
int page = 0,size = 10;  //這裡可以不寫死，留給前端的人寫。
    Sort sort=new Sort(Sort.Direction.DESC,"id");
    Pageable pageable=new PageRequest(page, size, sort);
    return  girlRepository.findAll(pageable);

}
  
}  

3.下面針對該Controller編寫測試用例驗證正確性，具體如下。

package com.cy.coo.h;

import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
import org.springframework.data.repository.PagingAndSortingRepository;


public interface GrilController extends  JpaRepository<Girl, Integer> ,PagingAndSortingRepository<Girl, Integer>, JpaSpecificationExecutor<Girl>{  



 public Page<Girl> findAll(Pageable pageable);


}

4. 溫馨提醒：   如過沒有配置yml或者依賴就會出現問題。