将 POJO 内容从一个 bean 复制到另一个 bean [英] Copy POJO content from one bean to another

问题描述

我在不同的包中很少有 Pojo，每个 POJO 都包含来自同一包的另一个 pojo 的集合.我需要将包 B Pojos 中的所有同名项目复制到包 A 中的对象.

I have few Pojos in different packages, each POJO contains set of the another pojo from the same package. I need to copy all items with the same name from Package B Pojos to objects in Package A.

示例:

package com.vanilla.packageA;

public class Student{

    private String firstName;
    private String lastName;
    private Set<Course> course;

    //getters and setters ommited

}   

<小时>

package com.vanilla.packageA;

    public class Course{
    private String courseName;
    private String courseDescription;

    //seters and getters
}

<小时>

package com.vanilla.packageB;

public class Student{

    private String firstName;
    private String lastName;
    private Address address;
    private Set<Course> course;
    Private Date birtday;

    //getters and setters ommited

}   

<小时>

package com.vanilla.packageB;

public class Course{
    private String courseName;
    private String courseDescription;
    private <Lecturer> lecturer;
    private Integer hours;

    //seters and getters
} 

我想递归地将 PackageB 类中的所有项目复制到 PackageB 中存在并共享相同名称的 packageA 类.

I want to copy recursively all items from PackageB classes to packageA classes which exists in PaCkageB and shares the same name.

更新:

伙计们，我知道这是一个愚蠢的问题，但我需要维护这段代码，现在代码的编写方式是他们必须调用 50 个 getter 和 setter，或者调用带有 50 个参数的构造函数.不幸的是，我不能使用同一个对象，我需要复制它，但我必须找到更优雅"的方式来复制 tese beans.

Guys, I understand that that this is stupid question, but I need to maintain this code, now the code is written in the way that they have to call 50 getters and setter, or calling constructor with 50 parameters. Unfortunately, I can't use the same object and I need to copy it, but I must find more "elegant" way to copy tese beans.

推荐答案

Apache BeanUtils.copyProperties 不起作用?

Any reason why Apache BeanUtils.copyProperties does not work?

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