Java实现两个实体类属性之间的复制

转自 https://blog.csdn.net/wangzihu/article/details/52239046

package com.duanxin;
 
import java.beans.BeanInfo;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
 
import com.jy.lexiu.api.evaluation.entity.LpEvaluationPart;
import com.jy.lexiu.business.picc.beans.LpEvaluPart;
 
public class Test {
	/**
	 * 
	 * @param source 被复制的实体类对象
	 * @param to 复制完后的实体类对象  
	 * @throws Exception
	 */
	public static void Copy(Object source, Object to) throws Exception {  
        // 获取属性  
        BeanInfo sourceBean = Introspector.getBeanInfo(source.getClass(),java.lang.Object.class);  
        PropertyDescriptor[] sourceProperty = sourceBean.getPropertyDescriptors();  
  
        BeanInfo destBean = Introspector.getBeanInfo(to.getClass(),java.lang.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())) {  
                        // 调用source的getter方法和dest的setter方法  
                        destProperty[j].getWriteMethod().invoke(to,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{
		LpEvaluationPart lpEvaluationPart = new LpEvaluationPart();
		LpEvaluPart part=new LpEvaluPart();
		part.setCheckWaiting("1");
		part.setCreator("2");
		
		Copy(part,lpEvaluationPart);
		System.out.println(lpEvaluationPart.getCheckWaiting()+" "+lpEvaluationPart.getCreator());
	}
}