invalidstreamheader:EFBFBDEF问题解决－－ISO8859-1

Java序列化的demo通常都是写到本地文件中的。但是，如果想要在内存中进行序列化，就会遇到异常：java.io.StreamCorruptedException: invalid stream header: EFBFBDEF。

@Nullable public static Object readObject(@NonNull String objectString) { final ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(objectString.getBytes()); ObjectInputStream objectInputStream = null; try { objectInputStream = new ObjectInputStream(byteArrayInputStream); return objectInputStream.readObject(); } catch (IOException | ClassNotFoundException e) { return null; } finally { if (objectInputStream != null) { try { objectInputStream.close(); } catch (IOException ignore) { } } try { byteArrayInputStream.close(); } catch (IOException ignore) { } } } @Nullable public static String writeObject(@NonNull Object object) { final ByteArrayOutputStream bos = new ByteArrayOutputStream(); ObjectOutputStream oos = null; try { oos = new ObjectOutputStream(bos); oos.writeObject(object); return bos.toString(); } catch (IOException e) { return null; } finally { if (oos != null) { try { oos.close(); } catch (IOException ignore) { } } } }

@Nullable public static Object readObject(@NonNull String objectString) { final ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(objectString.getBytes(StandardCharsets.ISO_8859_1)); ObjectInputStream objectInputStream = null; try { objectInputStream = new ObjectInputStream(byteArrayInputStream); return objectInputStream.readObject(); } catch (IOException | ClassNotFoundException e) { return null; } finally { if (objectInputStream != null) { try { objectInputStream.close(); } catch (IOException ignore) { } } try { byteArrayInputStream.close(); } catch (IOException ignore) { } } } @Nullable public static String writeObject(@NonNull Object object) { final ByteArrayOutputStream bos = new ByteArrayOutputStream(); ObjectOutputStream oos = null; try { oos = new ObjectOutputStream(bos); oos.writeObject(object); return bos.toString(StandardCharsets.ISO_8859_1.name()); } catch (IOException e) { return null; } finally { if (oos != null) { try { oos.close(); } catch (IOException ignore) { } } } }

遇到这个问题时，我网上搜索了一下，主要分为两种解决方案。
方案一：多进行一次转换，可见博客：Java字节数组序列化读取时异常的有效解决方案 java.io.StreamCorruptedException: invalid stream header: EFBFBDEF
方案二：使用base64。方案一博客中的评论有写。
本方案最大的好处就是代码简单，效率最高。需要注意的是StandardCharsets.ISO_8859_1是Java 1.7才支持的。如果是Java 1.7以下，Java 1.4以上，可用Charset.forName("ISO-8859-1")替换之。Java 1.4以下就不考虑。