JAVA 对象 & byte数组之间转化-蒲公英云

JAVA 对象 & byte数组之间转化

 对象 & byte数组之间转化工具类
效果图：objectToByteArray: [B@7d4991ad
byteArrayToObject: WXOrderMsgEntity(uuid=null, orderSeq=W2018052100000002, carportSeq=1001, stakeSeq=102) {"carportSeq":1001,"orderSeq":"W2018052100000002","stakeSeq":102}
package com.extracme.echarge;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import com.alibaba.fastjson.JSON;
import com.aliyun.openservices.ons.api.Message;
import com.extracme.evready.charge.define.WXOrderMsgEntity;
public class TestHalp {
    public static void main(String[] args) {
        WXOrderMsgEntity msg=new WXOrderMsgEntity();
        msg.setCarportSeq(1001);
        msg.setOrderSeq("W2018052100000002");
        msg.setStakeSeq(102);
        byte[] objectToByteArray = objectToByteArray(msg);
        System.err.println("objectToByteArray: " + objectToByteArray);
        Message message=new Message();
        message.setBody(objectToByteArray);
        Object byteArrayToObject = byteArrayToObject(message.getBody());
        System.err.println("byteArrayToObject: " + byteArrayToObject.toString());
        WXOrderMsgEntity d=(WXOrderMsgEntity)byteArrayToObject;
        System.out.println(JSON.toJSONString(d));
    }
        /**
         * 对象转Byte数组
         * @param obj
         * @return
         */
        public static byte[] objectToByteArray(Object obj) {
            byte[] bytes = null;
            ByteArrayOutputStream byteArrayOutputStream = null;
            ObjectOutputStream objectOutputStream = null;
            try {
                byteArrayOutputStream = new ByteArrayOutputStream();
                objectOutputStream = new ObjectOutputStream(byteArrayOutputStream);
                objectOutputStream.writeObject(obj);
                objectOutputStream.flush();
                bytes = byteArrayOutputStream.toByteArray();
            } catch (IOException e) {
                System.err.println("objectToByteArray failed, " + e);
            } finally {
                if (objectOutputStream != null) {
                    try {
                        objectOutputStream.close();
                    } catch (IOException e) {
                        System.err.println("close objectOutputStream failed, " + e);
                    }
                }
                if (byteArrayOutputStream != null) {
                    try {
                        byteArrayOutputStream.close();
                    } catch (IOException e) {
                        System.err.println("close byteArrayOutputStream failed, " + e);
                    }
                }
            }
            return bytes;
        }
        /**
         * Byte数组转对象
         * @param bytes
         * @return
         */
        public static Object byteArrayToObject(byte[] bytes) {
            Object obj = null;
            ByteArrayInputStream byteArrayInputStream = null;
            ObjectInputStream objectInputStream = null;
            try {
                byteArrayInputStream = new ByteArrayInputStream(bytes);
                objectInputStream = new ObjectInputStream(byteArrayInputStream);
                obj = objectInputStream.readObject();
            } catch (Exception e) {
                System.err.println("byteArrayToObject failed, " + e);
            } finally {
                if (byteArrayInputStream != null) {
                    try {
                        byteArrayInputStream.close();
                    } catch (IOException e) {
                        System.err.println("close byteArrayInputStream failed, " + e);
                    }
                }
                if (objectInputStream != null) {
                    try {
                        objectInputStream.close();
                    } catch (IOException e) {
                        System.err.println("close objectInputStream failed, " + e);
                    }
                }
            }
            return obj;
        }
}