objectutil.java

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package net.xdevelop.util;


import net.xdevelop.util.*;
import java.io.*;


/**
 * 对象与数组的转换工具类,
 * 提供将对象转换成字节数组和字节数组转换成对象的方法
 */
public final class ObjectUtil {

    private ObjectUtil() {
    }

    /**
     * 将OBJECT转换成字节数组,该OBJECT必须是serialized
     * @param obj 待转换的对象
     * @return 返回该对象的字节数组
     */
    public static byte[] ObjectToByteArray(Object obj) throws Exception {
        try {
            ByteArrayOutputStream outStream = new ByteArrayOutputStream();
            ObjectOutputStream objectOut = new ObjectOutputStream(outStream);
            objectOut.writeObject(obj);
            objectOut.flush();
            outStream.close();
            return outStream.toByteArray();
        }
        catch (Exception e) {
            throw e;
        }
    }

    /**
     * 将对象字节数组还原为object
     * @param objArray 对象的字节数组
     * @return 返回还原的对象
     */
    public static Object ByteArrayToObject(byte[] objArray) throws Exception {
        try {
            InputStream in = new ByteArrayInputStream(objArray);
            ObjectInputStream objectIn = new ObjectInputStream(in);
            Object object = objectIn.readObject();
            return object;
        }
        catch (Exception e) {
            throw e;
        }
    }
}