【转载】java对象和byte数组互转,直接拿去用

//加了了Optional防止空指针异常,加入了泛型,省去了强制转化

 import java.io.*;
 import java.util.Optional;

 /**
  * Created by Jason on 2017/1/3.
  */
 public class ByteArrayUtils {

     public static<T> Optional<byte[]> objectToBytes(T obj){
         byte[] bytes = null;
         ByteArrayOutputStream out = new ByteArrayOutputStream();
         ObjectOutputStream sOut;
         try {
             sOut = new ObjectOutputStream(out);
             sOut.writeObject(obj);
             sOut.flush();
             bytes= out.toByteArray();
         } catch (IOException e) {
             e.printStackTrace();
         }
         return Optional.ofNullable(bytes);
     }

     public static<T> Optional<T> bytesToObject(byte[] bytes) {
         T t = null;
         ByteArrayInputStream in = new ByteArrayInputStream(bytes);
         ObjectInputStream sIn;
         try {
             sIn = new ObjectInputStream(in);
             t = (T)sIn.readObject();
         } catch (Exception e) {
             e.printStackTrace();
         }
         return Optional.ofNullable(t);

     }
 }
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 作者：idealemail
 来源：CSDN
 原文：https://blog.csdn.net/idealemail/article/details/53993872
 版权声明：本文为博主原创文章，转载请附上博文链接！