对象流

最新推荐文章于 2022-04-20 00:04:08 发布

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最新推荐文章于 2022-04-20 00:04:08 发布

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CC 4.0 BY-SA版权

文章标签： java基础

本文链接：https://blog.youkuaiyun.com/xzq1994/article/details/51296876

本文介绍了如何使用Java的ObjectInputStream和ObjectOutputStream进行对象的序列化和反序列化操作。包括将对象写入文件的方法objectWriteStream及从文件中读取对象的方法objectReadStream。

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对象流的写入

public static void objectWriteStream(File file, Message message ){
  ObjectOutputStream objectOutputStream = null;
  try {
   objectOutputStream = new ObjectOutputStream(new FileOutputStream(file,false));
   objectOutputStream.writeObject(message);
   objectOutputStream.flush();

  } catch (FileNotFoundException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }finally{
   if(objectOutputStream != null){
    try {
     objectOutputStream.close();
    } catch (IOException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
    }
   }
  }
}

对象流的读取
public static Message objectReadStream(File file){
  ObjectInputStream objectInputStream = null;
  Message message = null;
  try {
   objectInputStream = new ObjectInputStream(new FileInputStream(file));
   //强转成Object类型。
   message = (Message) objectInputStream.readObject();
  } catch (FileNotFoundException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (ClassNotFoundException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }finally{
   if(objectInputStream != null){
    try {
     objectInputStream.close();
    } catch (IOException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
    }
   }
  }
  return (message);
}