java - ModelMapper 混淆了不同的属性

Question

我有一个扩展 Person 对象的 Student 对象。

public abstract class Person implements IIdentifiable {
    private String contactNumber;
    // other properties
    public String getContactNumber() {
        return contactNumber;
    }

    public void setContactNumber(String contactNumber) {
        this.contactNumber = contactNumber;
    }
}

public class Student extends Person {
    private String studentNumber;
    //Other properties
    public String getStudentNumber() {
        return studentNumber;
    }

    public void setStudentNumber(String studentNumber) {
        this.studentNumber = studentNumber;
    }
}

Student 有一个属性studentNumber，person 有一个属性contactNumber。当我将 Student 对象映射到 StudentDto 时，它会对给定的属性感到困惑。

public class StudentDto{
    private String studentNumber;
    public String getStudentNumber() {
        return studentNumber;
    }

    public void setStudentNumber(String studentNumber) {
        this.studentNumber = studentNumber;
    }
}

这只发生在某些场合。我想知道是什么原因

1) The destination property com.cinglevue.veip.web.dto.timetable.StudentDto.setStudentNumber() matches multiple source property hierarchies:
com.cinglevue.veip.domain.core.student.StudentProfile.getStudent()/com.cinglevue.veip.domain.core.Person.getContactNumber()
com.cinglevue.veip.domain.core.student.StudentProfile.getStudent()/com.cinglevue.veip.domain.core.Student.getStudentNumber()

Answer 1

1.您可以更改 MatchingStrategies，使用:

modelMapper.getConfiguration().setMatchingStrategy(MatchingStrategies.STRICT);

PS: modelmapper 隐含地使用了MatchingStrategies.STANDARD

但它要求源端和目标端的属性名称标记相互精确匹配。

2.告诉 ModelMapper 在发现多个源属性层次结构时忽略映射:

modelMapper.getConfiguration().setAmbiguityIgnored(true);