详解Spring中BeanUtils工具类的使用

package com.example.entity;
 
import lombok.Data;
 
@Data
public class Question {
    private Integer id;
    private Integer studentId;
    private String content;
    private Integer value;
}

package com.example.entity;
 
import lombok.Data;
 
@Data
public class Student {
    private Integer id;
    private String name;
    private Integer points;
}

package com.example.vo;
 
import lombok.Data;
 
import java.io.Serializable;
import java.util.List;
 
@Data
public class QuestionStudentVO implements Serializable {
    private Integer id;
    private String content;
    private Integer value;
    private Integer studentId;
 
    private List<String> name;
    private Integer points;
}

package com.example;
 
import com.example.entity.Question;
import com.example.entity.Student;
import com.example.vo.QuestionStudentVO;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.BeanUtils;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
 
@RunWith(SpringRunner.class)
@SpringBootTest
public class DemoApplicationTests {
    @Test
    public void beanUtilTest(){
        Question question = new Question();
        question.setId(2);
        // question.setStudentId(3);
        question.setContent("This is content");
        question.setValue(100);
 
        Student student = new Student();
        student.setId(3);
        student.setName("Tony Stark");
        student.setPoints(201);
 
        QuestionStudentVO questionStudentVO = new QuestionStudentVO();
 
        BeanUtils.copyProperties(question, questionStudentVO);
        BeanUtils.copyProperties(student, questionStudentVO);
        System.out.println(questionStudentVO);
    }
}