深度copy的实现方法

public Object deepCopy(Object src) throws IOException, ClassNotFoundException{           
ByteArrayOutputStream byteOut = new ByteArrayOutputStream();           
ObjectOutputStream out = new ObjectOutputStream(byteOut);           
out.writeObject(src);                  
ByteArrayInputStream byteIn = new ByteArrayInputStream(byteOut.toByteArray());           
ObjectInputStream in =new ObjectInputStream(byteIn);           
Object dest = in.readObject();           
return dest;       
} 

这个方法有点耗时,不大推荐使用,建议如果不是特别复杂的话,还是直接新建对象赋值吧,虽然比较笨.