java 克隆工具类

对象克隆工具类

public class CloneUtils {
    public static <T extends Serializable> T clone(T obj){
        T cloneObj = null;
        try {
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            ObjectOutputStream obs = new ObjectOutputStream(out);
            obs.writeObject(obj);
            obs.close();
            ByteArrayInputStream ios = new ByteArrayInputStream(out.toByteArray());
            ObjectInputStream ois = new ObjectInputStream(ios);
            cloneObj = (T) ois.readObject();
            ois.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return cloneObj;
    }
    
    @SuppressWarnings("unchecked")
	public static <T> List<T> deepClone(List<T> src) throws IOException, ClassNotFoundException { 
    	List<T> dest  = null;
    	try {
    		 ByteArrayOutputStream byteOut = new ByteArrayOutputStream();  
    		    ObjectOutputStream out = new ObjectOutputStream(byteOut);  
    		    out.writeObject(src);  
    		    ByteArrayInputStream byteIn = new ByteArrayInputStream(byteOut.toByteArray());  
    		    ObjectInputStream in = new ObjectInputStream(byteIn);  
    		    dest = (List<T>) in.readObject(); 
		} catch (Exception e) {
			e.printStackTrace();
		}
	    return dest;  
	}  
}
​