Java将一个对象的属性值copy给另一个相同的对象

Java将一个对象的属性值copy给另一个相同的对象
import java.beans.BeanInfo;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;


public class CopyUtils {
    public static void Copy(Object source, Object dest) throws Exception {
        // 获取属性
        BeanInfo sourceBean = Introspector.getBeanInfo(source.getClass(),Object.class);
        PropertyDescriptor[] sourceProperty = sourceBean.getPropertyDescriptors();

        BeanInfo destBean = Introspector.getBeanInfo(dest.getClass(),Object.class);
        PropertyDescriptor[] destProperty = destBean.getPropertyDescriptors();

        try {
            for (int i = 0; i < sourceProperty.length; i++) {

                for (int j = 0; j < destProperty.length; j++) {

                    if (sourceProperty[i].getName().equals(destProperty[j].getName())  && sourceProperty[i].getPropertyType() == destProperty[j].getPropertyType()) {
                        // 调用source的getter方法和dest的setter方法
                        destProperty[j].getWriteMethod().invoke(dest,sourceProperty[i].getReadMethod().invoke(source));
                        break;
                    }
                }
            }
        } catch (Exception e) {
            throw new Exception("属性复制失败:" + e.getMessage());
        }
    }
    public static void main(String[] args) throws Exception{
        Device device = new Device();
        device.setDevId("99999");
        Device devices = new Device();
        CopyUtils.Copy(device,devices);
        System.out.println(devices.getDevId());
    }
}

 

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