Java 遍历一个对象的属性 将非空属性赋值给另一个对象

//将origin属性注入到destination中
  public <T> void mergeObject(T origin, T destination) {
    if (origin == null || destination == null)
      return;
    if (!origin.getClass().equals(destination.getClass()))
      return;

    Field[] fields = origin.getClass().getDeclaredFields();
    for (int i = 0; i < fields.length; i++) {
      try {
        fields[i].setAccessible(true);
        Object value = fields[i].get(origin);
        if (null != value) {
          fields[i].set(destination, value);
        }
        fields[i].setAccessible(false);
      } catch (Exception e) {
      }
    }
  }

　　以上是赋值给同类对象，下面是赋值给非同类的对象的同名属性例子

package test.test;

import java.lang.reflect.Field;

class Temp{
    String a = null;
    String b = null;
    String c = null;
}

class Temp2{
    String a = null;
}

public class Test3 {

    public static void main(String[] args) throws IllegalArgumentException, IllegalAccessException {
        // TODO Auto-generated method stub
        Temp t1 = new Temp();
        t1.a ="value a";
        Temp t2 = new Temp();
        t2.b = "value b";
        Temp2 t3 = new Temp2();

        Field[] fields = t1.getClass().getDeclaredFields();


        Field[] fields2 = t3.getClass().getDeclaredFields();
        for(int i=0;i<fields.length;i++)
            if(fields[i].getName().equals(fields2[0].getName())){
                fields2[0].set(t3, fields[i].get(t1));
            }
        System.out.println(t3.a);

    }

}

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