Laravel 录制音频，提交音频，将其存储在服务器中，并将其路径存储在数据库中。拉维尔

谁能帮帮我吗。 我需要在我的浏览器中录制音频并将其提交给服务器，以便服务器可以存储音频并将其存储在数据库中

我找到了这个教程-> 我使用的源代码如下：

<form action="{{route('X')}}" method="POST" enctype='multipart/form-data'>
<div id="controls">
    <button id="recordButton">Record</button>
    <button id="pauseButton" disabled>Pause</button>
    <button id="stopButton" disabled>Stop</button>
    </div>
    <div id="formats">Format: start recording to see sample rate</div>
    <p><strong>Recordings:</strong></p>
    <ol id="recordingsList"></ol>
    <!-- inserting these scripts at the end to be able to use all the elements in the DOM -->

</form>

<script src="https://cdn.rawgit.com/mattdiamond/Recorderjs/08e7abd9/dist/recorder.js"></script>
<script >
//webkitURL is deprecated but nevertheless
URL = window.URL || window.webkitURL;

var gumStream;                      //stream from getUserMedia()
var rec;                            //Recorder.js object
var input;                          //MediaStreamAudioSourceNode we'll be recording

// shim for AudioContext when it's not avb. 
var AudioContext = window.AudioContext || window.webkitAudioContext;
var audioContext //audio context to help us record

var recordButton = document.getElementById("recordButton");
var stopButton = document.getElementById("stopButton");
var pauseButton = document.getElementById("pauseButton");

//add events to those 2 buttons
recordButton.addEventListener("click", startRecording);
stopButton.addEventListener("click", stopRecording);
pauseButton.addEventListener("click", pauseRecording);

function startRecording() {
    console.log("recordButton clicked");

    /*
        Simple constraints object, for more advanced audio features see
        https://addpipe.com/blog/audio-constraints-getusermedia/
    */

    var constraints = { audio: true, video:false }

    /*
        Disable the record button until we get a success or fail from getUserMedia() 
    */

    recordButton.disabled = true;
    stopButton.disabled = false;
    pauseButton.disabled = false

    /*
        We're using the standard promise based getUserMedia() 
        https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getUserMedia
    */

    navigator.mediaDevices.getUserMedia(constraints).then(function(stream) {
        console.log("getUserMedia() success, stream created, initializing Recorder.js ...");

        /*
            create an audio context after getUserMedia is called
            sampleRate might change after getUserMedia is called, like it does on macOS when recording through AirPods
            the sampleRate defaults to the one set in your OS for your playback device

        */
        audioContext = new AudioContext();

        //update the format 
        document.getElementById("formats").innerHTML="Format: 1 channel pcm @ "+audioContext.sampleRate/1000+"kHz"

        /*  assign to gumStream for later use  */
        gumStream = stream;

        /* use the stream */
        input = audioContext.createMediaStreamSource(stream);

        /* 
            Create the Recorder object and configure to record mono sound (1 channel)
            Recording 2 channels  will double the file size
        */
        rec = new Recorder(input,{numChannels:1})

        //start the recording process
        rec.record()

        console.log("Recording started");

    }).catch(function(err) {
        //enable the record button if getUserMedia() fails
        recordButton.disabled = false;
        stopButton.disabled = true;
        pauseButton.disabled = true
    });
}

function pauseRecording(){
    console.log("pauseButton clicked rec.recording=",rec.recording );
    if (rec.recording){
        //pause
        rec.stop();
        pauseButton.innerHTML="Resume";
    }else{
        //resume
        rec.record()
        pauseButton.innerHTML="Pause";

    }
}

function stopRecording() {
    console.log("stopButton clicked");

    //disable the stop button, enable the record too allow for new recordings
    stopButton.disabled = true;
    recordButton.disabled = false;
    pauseButton.disabled = true;

    //reset button just in case the recording is stopped while paused
    pauseButton.innerHTML="Pause";

    //tell the recorder to stop the recording
    rec.stop();

    //stop microphone access
    gumStream.getAudioTracks()[0].stop();

    //create the wav blob and pass it on to createDownloadLink
    rec.exportWAV(createDownloadLink);
}

function createDownloadLink(blob) {

    var url = URL.createObjectURL(blob);
    var au = document.createElement('audio');
    var li = document.createElement('li');
    var link = document.createElement('a');

    //name of .wav file to use during upload and download (without extendion)
    var filename = new Date().toISOString();

    //add controls to the <audio> element
    au.controls = true;
    au.src = url;

    //save to disk link
    link.href = url;
    link.download = filename+".wav"; //download forces the browser to donwload the file using the  filename
    link.innerHTML = "Save to disk";

    //add the new audio element to li
    li.appendChild(au);

    //add the filename to the li
    li.appendChild(document.createTextNode(filename+".wav "))

    //add the save to disk link to li
    li.appendChild(link);

    //upload link
    var upload = document.createElement('a');
    upload.href="X";
    upload.innerHTML = "Upload";
    upload.addEventListener("click", function(event){
        var xhr=new XMLHttpRequest();
        //   var xhr=new HttpRequest();
        xhr.onload=function(e) {
            if(this.readyState === 4) {
                console.log("Server returned: ",e.target.responseText);
            }
        };
        var fd=new FormData();
        fd.append("audio_data",blob, filename);
        xhr.open("POST","upload.php",true);
        xhr.send(fd);
    })
    li.appendChild(document.createTextNode (" "))//add a space in between
    li.appendChild(upload)//add the upload link to li

    //add the li element to the ol
    recordingsList.appendChild(li);
}
</script>

这是控制器：

    public function store(Request $request)
{
    // dd($request);
    dd($request->file);
}

PS：我禁用了此路由上的csrf令牌，因为它将导致提交表单时出现问题

---

音频已成功录制，但已上载到服务器；dd（$request->file）；请告诉我一个空值，知道如何修复它。

$request->file

不返回任何内容，因为您没有作为文件的字段名。你应使用：

$file = $request->file('audio_data');

或

---

谢谢你，兄弟，但是没有用；它仍然显示为空

    public function store(Request $request)
{
    // dd($request);
    dd($request->file);
}

$file = $request->file('audio_data');

$file = $request->audio_data;