对象深度克隆

对象深度克隆

import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

public class UtilityHelper {
   /**
	 * 对象深度克隆
	 * @param obj
	 * 		对象
	 * @return
	 * 		深度克隆后的对象,失败返回null
	 * @throws Exception
	 */
	public static Object cloneObject(Object obj) throws Exception {
		Object cloneObj = null;
		ObjectOutputStream objectOutput = null;
		ObjectInputStream objectInput = null;
		try {
			ByteArrayOutputStream byteOutput = new ByteArrayOutputStream();
			objectOutput = new ObjectOutputStream(byteOutput);
			objectOutput.writeObject(obj);

			ByteArrayInputStream byteInput = new ByteArrayInputStream(byteOutput.toByteArray());
			objectInput = new ObjectInputStream(byteInput);

			cloneObj = objectInput.readObject();

		} catch (Exception e) {
			//System.out.println(e.getMessage());

			throw e;

		} finally {
			if (objectInput != null) {
				try {
					objectInput.close();
				} catch (IOException e) {
					//System.out.println(e.getMessage());
				}
			}
			if (objectOutput != null) {
				try {
					objectOutput.close();
				} catch (IOException e) {
					//System.out.println(e.getMessage());
				}
			}
		}
		return cloneObj;
	}
}