有人能解释一下,如果我只有一个 ByteArrayOutputStream,我怎样才能得到一个文件对象。如何从 ByteArrayOutputStream创建文件?
ByteArrayOutputStream
You can do it with using a FileOutputStream and the writeTo method.
FileOutputStream
writeTo
ByteArrayOutputStream byteArrayOutputStream = getByteStreamMethod(); try(OutputStream outputStream = new FileOutputStream("thefilename")) { byteArrayOutputStream.writeTo(outputStream); }
Source: "Creating a file from ByteArrayOutputStream in Java." on Code Inventions
You can use a FileOutputStream for this.
FileOutputStream fos = null; try { fos = new FileOutputStream(new File("myFile")); ByteArrayOutputStream baos = new ByteArrayOutputStream(); // Put data in your baos baos.writeTo(fos); } catch(IOException ioe) { // Handle exception here ioe.printStackTrace(); } finally { fos.close(); }