ModelMapper of entity mapping library

<!-- modelmapper依赖 -->
<dependency>
    <groupId>org.modelmapper</groupId>
    <artifactId>modelmapper</artifactId>
    <version>2.3.9</version>
</dependency>

 The following are related usage examples

<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.16.18</version>
</dependency>
<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.12</version>
</dependency>

  Source object:

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@NoArgsConstructor
@AllArgsConstructor
public class Apple {

    private String id;
    private String name;
    private String createAge;
    private String age;
}

 target:

import lombok.Data;

@Data
public class AppleDto {

    private String name;
    private String create_age;
    private String birth;
}

 

import org.junit.Test;
import org.modelmapper.ModelMapper;
import org.modelmapper.PropertyMap;
import org.modelmapper.TypeToken;
import org.modelmapper.convention.MatchingStrategies;

public class Demo {

    public static Apple apple=new Apple("1", "red", "21", "25");;
    ModelMapper modelMapper = new ModelMapper();

    @Test
    public void test1(){
        //直接使用modelMapper要求两个对象的属性命名必须完全一致
        AppleDto appleDto = modelMapper.map(apple, AppleDto.class);
        System.out.println(appleDto.toString());
    }

    @Test
    public void test2(){
        //修改modelMapper的匹配策略：松散匹配源属性和目标属性
        //将AppleDto字段改成createage也是可以正确赋值
        modelMapper.getConfiguration().setMatchingStrategy(MatchingStrategies.LOOSE);
        AppleDto appleDto = modelMapper.map(apple, AppleDto.class);
        System.out.println(appleDto.toString());
    }

    @Test
    public void test3(){
        //modelMapper采用自定义源属性和目标属性映射规则
        modelMapper.addMappings(customField());
        AppleDto appleDto = modelMapper.map(apple, new TypeToken<AppleDto>(){}.getType());
        System.out.println(appleDto);
    }

    /**
     * 自定义源（Apple）属性和目标（destination）属性映射规则
     */
    private static PropertyMap customField() {
        return new PropertyMap<Apple, AppleDto>() {
            @Override
            protected void configure() {
                map(source.getAge(), destination.getBirth());
            }
        };
    }
}