Entity到Vo的转换

entity —》 VO

1、pom.xml 导入依赖

<dependency>
    <groupId>org.mapstruct</groupId>
    <artifactId>mapstruct-jdk8</artifactId>
    <version>1.2.0.CR1</version>
</dependency>

<dependency>
    <groupId>org.mapstruct</groupId>
    <artifactId>mapstruct-processor</artifactId>
    <version>1.2.0.CR1</version>
    <scope>provided</scope>
</dependency>

2、自定义接口

package com.southwind.mapper;

import com.southwind.entity.Category;
import com.southwind.entity.Product;
import com.southwind.vo.OrderVO;
import com.southwind.vo.ProductVO;
import org.mapstruct.Mapper;
import org.mapstruct.Mapping;
import org.mapstruct.Mappings;
import org.mapstruct.Named;
import org.mapstruct.factory.Mappers;

import java.util.List;

@Mapper
public interface ProductMapper {
    

    ProductMapper mapper = Mappers.getMapper(ProductMapper.class);

    @Mappings({
    
            @Mapping(source = "productId",target = "id"),
            @Mapping(source = "productName",target = "name"),
            @Mapping(source = "productPrice",target = "price"),
            @Mapping(source = "productStatus",target = "status",qualifiedByName = "convertStatus")
    })
    ProductVO pojo2vo(Product product);

    @Named("convertStatus")
    default Boolean convertStatus(Integer status){
    
        if(status == 1)return true;
        return false;
    }

    List<ProductVO> list2vo(List<Product> list);

    @Mappings({
    
            @Mapping(source = "product.productName",target = "product"),
            @Mapping(source = "category.categoryName",target = "category")
    })
    OrderVO createOrder(Product product, Category category);
}

3、测试类

package com.southwind.mapper;

import com.southwind.entity.Category;
import com.southwind.entity.Product;
import com.southwind.vo.OrderVO;
import com.southwind.vo.ProductVO;
import org.junit.Test;
import org.springframework.beans.BeanUtils;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;

public class VOTest {
    

    @Test
    public void test() {
    
        Product product = new Product(1,"电脑", new BigDecimal(6000),1);
        ProductVO productVO = ProductMapper.mapper.pojo2vo(product);
        System.out.println(productVO);
    }

    @Test
    public void list(){
    
        List<Product> list = new ArrayList<>();
        for (int i = 0; i < 3; i++) {
    
            list.add(new Product(i,"电脑"+i,new BigDecimal(6000),1));
        }
        List<ProductVO> productVOS = ProductMapper.mapper.list2vo(list);
        for (ProductVO productVO : productVOS) {
    
            System.out.println(productVO);
        }
    }

    @Test
    public void order(){
    
        Product product = new Product(1, "电脑", new BigDecimal(6000),1);
        Category category = new Category("电子产品");
        OrderVO order = ProductMapper.mapper.createOrder(product, category);
        System.out.println(order);
    }

}