java - Spring Boot 中 List 的 getter 和 setter

Question

我正在 Spring Boot 中创建我的 API。我有一个产品由组件组成：

这是我的代码：（实体层）

import javax.persistence.*;
import java.util.List;
import java.util.ArrayList;

@Table
@Entity
public class Product{
   @Id @GeneratedValue
   private Long id;
   private String name;
   @OneToMany
   @JoinColumn
   private List<Component> productComponents = new ArrayList<>();

   //default constructor
   public Product(){

   }
   
   public Product(Long id, String name, List<Component> productComponents){
      this.id = id;
      this.name = name;
      this.productComponents = productComponents;
   }

  //getters
  public Long getId(){
     return this.id;
  }

  public String getName(){
     return this.name;
  }

  public List<Component> getProductComponents(){
     return this.productComponents;
  }


  //setters
  public void setId(Long id){
     this.id = id;
  }

 public void setName(String name){
    this.name = name;
 }

 public void setProductComponents(List<Component> productComponents){
    this.productComponents = productComponents;
 }

 public void addProductComponent(Component component) {
    this.productComponents.add(component);
 }

public void removeProductComponent(Component component) {
    this.productComponents.remove(component);
}

}

我的问题：

在控制器类中，我应该将更新方法更改为如下代码，product.addProduct(myComponent)还是应该如下所示： product.setProductComponents((Component) myProduct.getProductComponents())：

import java.util.List;

@CrossOrigin
@RestController
@RequestMapping("/api/products/product")
public class ProductController {
    private static ProductRepository myProductRepository;

    @PutMapping("/update/{id}")
    public Product updateProduct(@RequestBody Product myProduct, @RequestBody Component myComponent, @PathVariable Long id){
        return myProductRepository.findById(id).map((product) ->{
           product.setName(myProduct.getName());
           //updated code
           product.setProductComponents(myProduct.getProductComponents());
           product.addProductComponent(myComponent);
           ///////
        return myProductRepository.save(product);
    }).orElseGet(() ->{
       myProduct.setId(id);
       return myProductRepository.save(myProduct);
    });
}

还是有更好的解决方案？

标签： javaspringspring-bootspring-mvc

Answer 1

我建议有

public List<Component> getProductComponents(){
    return this.productComponents;
}

public void setProductComponents(List<Component> productComponents){
    this.productComponents = productComponents;
}

为方便起见：

public void addProductComponent(Component component) {
   this.productComponents.add(component);
}

public void removeProductComponent(Component component) {
   this.productComponents.remove(component);
}