MapStruct：从对象映射到复杂对象列表

Question

假设我有以下课程：

public class A {
private String id;
private List<B> related;
}

public class B {
private String id;
private String name;
}

public class ADTO {
private String id;
private List<BDTO> relations;
}

public class BDTO {
private String identificator;
private String relatedName;
}

@Mapper
public interface MyMapper {

    @Mappings({ @Mapping(source = "related", target = "relations") })
    ADTO mapperA(A obj);
}

Answer 1

尝试这个（未经测试但应该正常工作）

当映射列表时，您应该为class元素和列表创建一个映射，以映射列表的所有元素）

java prettyprint-override">@Mapper
public interface MyMapper {

    @Mappings({ @Mapping(source = "related", target = "relations") })
    ADTO mapperA(A obj);

    @Mappings(
      { @Mapping(source = "id", target = "identificator") },
      { @Mapping(source = "name", target = "relatedName") })
    BDTO bDTOMapping(B b);

    List<BDTO> bDTOListMapping(List<B> bList);
}