java 读取流

/**
 * 读取流
 *
 * @param inStream
 * @return 字节数组
 * @throws Exception
 */
public static byte[] readStream(InputStream inStream) throws Exception {
    ByteArrayOutputStream outSteam = new ByteArrayOutputStream();
    byte[] buffer = new byte[1024];
    int len = -1;
    while ((len = inStream.read(buffer)) != -1) {
        outSteam.write(buffer, 0, len);
    }
    outSteam.close();
    inStream.close();
    return outSteam.toByteArray();
}