我必须从网址播放.wav文件但获取UnsupportedFileException。
以下是代码。
public class LoopSound {
public static void main(String[] args) throws Exception {
HostnameVerifier hv = new HostnameVerifier() {
@Override
public boolean verify(String urlHostName, SSLSession session) {
System.out.println("Warning: URL Host: " + urlHostName
+ " vs. " + session.getPeerHost());
return true;
}
};
// Now you are telling the JRE to trust any https server.
// If you know the URL that you are connecting to then this should
// not be a problem
try {
trustAllHttpsCertificates();
} catch (Exception e) {
System.out.println("Trustall" + e.getStackTrace());
}
HttpsURLConnection.setDefaultHostnameVerifier(hv);
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
URL url = new URL(
"https://74.127.51.154/SiPbx/playback.php?access=subscriber&login=501%40mix&domain=mix.nms.mixnetworks.net&user=501&type=vmail&file=vm-20130109213353000125_netsapiens_com.wav&time=20130110170638&auth=de5dda39287604a88fc4b80c467e161d&submit=PLAY");
Clip clip = AudioSystem.getClip();
AudioInputStream ais = AudioSystem.
getAudioInputStream( url );
clip.open(ais);
clip.loop(0);
javax.swing.JOptionPane.
showMessageDialog(null, "Close to exit!");
}
private static void trustAllHttpsCertificates() throws Exception {
// Create a trust manager that does not validate certificate chains:
javax.net.ssl.TrustManager[] trustAllCerts =
new javax.net.ssl.TrustManager[1];
javax.net.ssl.TrustManager tm = new TempTrustedManager();
trustAllCerts[0] = tm;
javax.net.ssl.SSLContext sc =
javax.net.ssl.SSLContext.getInstance("SSL");
sc.init(null, trustAllCerts, null);
javax.net.ssl.HttpsURLConnection.setDefaultSSLSocketFactory(
sc.getSocketFactory());
}
public static class TempTrustedManager implements
javax.net.ssl.TrustManager, javax.net.ssl.X509TrustManager {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return null;
}
public boolean isServerTrusted(
java.security.cert.X509Certificate[] certs) {
return true;
}
public boolean isClientTrusted(
java.security.cert.X509Certificate[] certs) {
return true;
}
public void checkServerTrusted(
java.security.cert.X509Certificate[] certs, String authType)
throws java.security.cert.CertificateException {
return;
}
public void checkClientTrusted(
java.security.cert.X509Certificate[] certs, String authType)
throws java.security.cert.CertificateException {
return;
}
}
以下是例外情况：
Exception in thread "main" javax.sound.sampled.UnsupportedAudioFileException: could not get audio input stream from input URL
at javax.sound.sampled.AudioSystem.getAudioInputStream(Unknown Source)
at LoopSound.main(LoopSound.java:35)
当我将上述网址放在浏览器的地址栏中时，我可以下载该文件，但我无法以编程方式播放。我该如何解决这个问题？
修改 的
我将链接更改为
https://74.127.51.154/SiPbx/playback.php?access=subscriber&login=501%40mix&domain=mix.nms.mixnetworks.net&user=501&type=vmail&file=vm-20130109213353000125_netsapiens_com.wav&time=20130110170638&auth=de5dda39287604a88fc4b80c467e161d&submit=PLAY
现在上面的链接被放置在浏览器下载文件。
但是当我执行程序现在获得新的异常时。
Exception in thread "main" javax.sound.sampled.LineUnavailableException: line with format ULAW 8000.0 Hz, 8 bit, mono, 1 bytes/frame, not supported.
at com.sun.media.sound.DirectAudioDevice$DirectDL.implOpen(Unknown Source)
at com.sun.media.sound.DirectAudioDevice$DirectClip.implOpen(Unknown Source)
at com.sun.media.sound.AbstractDataLine.open(Unknown Source)
at com.sun.media.sound.DirectAudioDevice$DirectClip.open(Unknown Source)
at com.sun.media.sound.DirectAudioDevice$DirectClip.open(Unknown Source)
at LoopSound.main(LoopSound.java:36)
提前致谢。
答案 0 :(得分：2)
WAV是一种容器格式（就像zip文件是许多不同文件的容器一样），因此没有实际的WAV音频格式（LPCM是最常见的）。在这种情况下，您的WAV包含一种称为“CCITT u-Law”的格式，该格式不受广泛支持（用于Cisco VoIP电话）。我还没有看到可以读取它的Java库，但也许知道要查找的内容会有所帮助。
答案 1 :(得分：0)
以下链接帮助了我，我现在可以播放wav文件了。
How to play wav file with format CCITT u-Law
根据Millimoose的评论，我正在粘贴上述链接中的一些代码以帮助其他人。
我正在更改wav文件的格式CCITT U-Law to PCM_SIGNED这是确切的wav格式。
URL url = new URL(
"https://sssss/xxxxx/playback.php?access=subscriber&login=501%40mix&domain=mix.nms.mixnetworks.net&user=501&type=vmail&file=vm-20130109213243000082_mixnetworks_net.wav&time=20130110170638&auth=c43ff32546e126be9b895bbf225b2e75&submit=PLAY");
AudioInputStream fis =
AudioSystem.getAudioInputStream(url);
System.out.println("File AudioFormat: " + fis.getFormat());
AudioInputStream ais = AudioSystem.getAudioInputStream(
AudioFormat.Encoding.PCM_SIGNED,fis);
AudioFormat af = ais.getFormat();
System.out.println("AudioFormat: " + af.toString());
int frameRate = (int)af.getFrameRate();
System.out.println("Frame Rate: " + frameRate);
int frameSize = af.getFrameSize();
System.out.println("Frame Size: " + frameSize);
SourceDataLine line = AudioSystem.getSourceDataLine(af);
line.addLineListener(new MyLineListener());
line.open(af);
int bufSize = line.getBufferSize();
System.out.println("Buffer Size: " + bufSize);
line.start();
byte[] data = new byte[bufSize];
int bytesRead;
while ((bytesRead = ais.read(data,0,data.length)) != -1)
line.write(data,0,bytesRead);
line.drain();
line.stop();
line.close();