Java 从流中正确读取字节

Java 从流中正确读取字节

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/** * 测试用途，把响应写入文件 *  * @param in */private void dumpToFile(InputStream in) {FileOutputStream fos;try {String fileName = "/tmp/res-" + System.currentTimeMillis() + ".dmp";log.debug("fileName: " + fileName);fos = new FileOutputStream(fileName);byte b[] = new byte[2048];int i = -1;while ((i = in.read(b)) != -1) {fos.write(b, 0, i);}fos.close();} catch (Exception e) {log.error(e);}}