Web我正在使用apache的FTPClient從FTP服務器下載文件。 我的情況是 FTP服務器可能會失去網絡連接，並且可能最多保持 天處於斷開連接狀態。 重新連接后，應從剩余位置開始下載文件。 我正在使用以下代碼連接到服務器，然后從服務器下載文件 adsbygoogle window.adsbygoo WebThe java.io.InputStream.read (byte [] b, int off, int len) method reads upto len bytes of data from the input stream into an array of bytes. If the parameter len is zero, then no bytes are read and 0 is returned; else there is an attempt to read atleast one byte. If the stream is at the end of the file, the value returned is -1.
Java Scanner Baeldung
Web24 dec. 2024 · @Override public int read() throws IOException { return cachedBodyInputStream.read (); } Copy 5.3. isFinished () Then, we'll override the isFinished () method. This method indicates whether InputStream has more data to read or not. It returns true when zero bytes available to read: WebIOException - If the first byte cannot be read for any reason other than the end of the file, if the input stream has been closed, or if some other I/O error occurs. NullPointerException … green air cargo
Guide to BufferedReader Baeldung
Web6 mei 2024 · I have read #1086 and I have some arguments for the direct support of playback from InputStream.. If you need to play video file from an encrypted container there is no alternative for playback by means of InputStream since you can't copy this video file to disk before playback because it is a privacy breaking. WebReads a single character from this reader and returns it as an integer with the two higher-order bytes set to 0. Returns -1 if the end of the reader has been reached. The byte value is either obtained from converting bytes in this reader's buffer or by first filling the buffer from the source InputStream and then reading from the buffer. WebThe program in the previous tutorial worked nicely. But if you make a mistake by placing the bodyIn.close() statement before ps.executeUpdate(), you will get an IOException when ps.executeUpdate() is called. The reason is simple, reading of binary data from the InputStream is done at the time of executeUpdate() call, not before. flower mound to grand prairie