根据url获取远程服务器声音文件播放时长,远程连接读url资源时的坑

根据url获取远程服务器声音文件播放时长,远程连接读url资源时的坑

/*** 获取读音时长 单位:s* @param mp3Url* @return* @throws IOException* @throws Exception*/
public static int ReadMp3(String mp3Url) throws IOException, Exception {URL url = new URL(mp3Url);URLConnection con = null;try {con = url.openConnection();} catch (IOException e) {e.printStackTrace();}BufferedInputStream bis = new InputStream());Bitstream bt = new Bitstream(bis);//获取mp3时间长度Header header = bt.readFrame();int mp3Length = ContentLength();int time = (int) al_ms(mp3Length);return time / 1000;
}

当url存在特殊符号或空格时InputStream()会出现java.io.IOException: Server returned HTTP response code: 400 for URL,需要用de(url, "UTF-8")进行转义，默认转义空格为“+”，需要用url = placeAll("+", "%20")替换为%20

        <dependency><groupId>com.badlogicgames.jlayer</groupId><artifactId>jlayer</artifactId><version>1.0.2-gdx</version></dependency>