java对象复制

1. /* 
2.  * 复制对象obj，类似于值传递，非引用 
3.  */  
4. public static Object cloneObject(Object obj) throws Exception{  
5.        ByteArrayOutputStream  byteOut = new ByteArrayOutputStream();    
6.        ObjectOutputStream out = new ObjectOutputStream(byteOut);    
7.        out.writeObject(obj);           
8.        ByteArrayInputStream byteIn = new ByteArrayInputStream(byteOut.toByteArray());    
9.        ObjectInputStream in =new ObjectInputStream(byteIn);          
10.        return in.readObject();  
11. }