Java MapStruct记录到记录的映射不起作用

您混淆了包的名称，我注意到您使用了2,Kriterium多个类:

• de.persistence.model.nontransactional.Kriterium个
• de.persistence.model.Kriterium个
• de.Kriterium个

您需要仔细判断是否在KriteriumMapper中使用了正确包中的类.

以下是记录到记录映射的最小工作样本:

@Mapper
public interface KriteriumMapper {

    Kriterium2 fromPersistenceRecord(Kriterium k);
}

public record Kriterium(String name, String crkSpaltenname) {}

public record Kriterium2(String name, String crkSpaltenname) {}

下面是编译后生成的KriteriumMapperImpl的实现:

@Generated(
    value = "org.mapstruct.ap.MappingProcessor",
    date = "2023-10-02T18:18:30+0700",
    comments = "version: 1.5.5.Final, compiler: javac, environment: Java 17.0.1 (Oracle Corporation)"
)
public class KriteriumMapperImpl implementsKriteriumMapper {

    @Override
    public Kriterium2 fromPersistenceRecord(Kriterium k) {
        if ( k == null ) {
            return null;
        }

        String name = null;
        String crkSpaltenname = null;

        name = k.name();
        crkSpaltenname = k.crkSpaltenname();

        Kriterium2 kriterium2 = new Kriterium2( name, crkSpaltenname );

        return kriterium2;
    }
}