首先所需要的文件：swfObject.js+recorder.js+SpringMvc相关文件+main.js(flash录音频相关参数设置)
顺着逻辑从前向后看；首先看一下页面 的jsp文件：
关键代码部分：
<div id="wrap">
<div class="container">
<div class="row">
<div class="col-xs-12 col-sm-12 col-md-12 col-lg-12">
<div class="qcontainer">
<div id="recorder-audio" class="control_panel idle">
<button class="record_button" title="Record" id = "start_record" >
<img src="../WUI/qrecord/images/record.png" alt="开始录音">
</button>
<button class="stop_recording_button"
οnclick="FWRecorder.stopRecording('audio');"
title="Stop Recording">
<img src="../WUI/qrecord/images/stop.png" alt="停止录音">
</button>
<button class="play_button"
οnclick="FWRecorder.playBack('audio');" title="Play">
<img src="../WUI/qrecord/images/play.png" alt="播放">
</button>
<button class="pause_playing_button"
οnclick="FWRecorder.pausePlayBack('audio');"
title="Pause Playing">
<img src="../WUI/qrecord/images/pause.png" alt="暂停">
</button>
<button class="stop_playing_button"
οnclick="FWRecorder.stopPlayBack();" title="Stop Playing">
<img src="../WUI/qrecord/images/stop.png" alt="停止">
</button>
<div class="level"></div>
</div>
<div class="details">
<button class="show_level" οnclick="FWRecorder.observeLevel();">显示声波</button>
<button class="hide_level"
οnclick="FWRecorder.stopObservingLevel();"
style="display: none;">隐藏声波</button>
<button class="show_settings" οnclick="microphonePermission()">麦克风权限</button>
<span id="save_button" style="display: inline-block;"> <object
data="../WUI/qrecord/recorder.swf" name="recorderApp"
id="recorderApp" type="application/x-shockwave-flash"
height="24" width="24">
<param
value="upload_image=../WUI/qrecord/images/upload.png"
name="flashvars">
</object>
</span>
<div id="status">最后的录音事件：ready</div>
<div>
录音时长：<span id="duration"></span>
</div>
<div>
上传状态：<span id="upload_status"></span>
</div>
<input value="" id="qrecordId" type="hidden">
</div>
<!-- 这个form的action写上传路径 -->
<form id="uploadForm" name="uploadForm" action="upload1">
</form>
</div>
</div>
</div>
</div>
<div id="push"></div>
</div>
所有的对应的图片位置按照自己项目具体位置而定，里面比较重要的几个参数的id 一个是最终提交的form表单的ID=‘uploadForm’和<object>中的recorderApp 还有其他的flash操作的id。
引入swfObject.js是操作flash的js库。recorder.js中定义了Recorder对象，定义了对应的方法。
引入之后便可触发dom里面的onclick方法：例如：<button class="play_button" οnclick="FWRecorder.playBack('audio');" title="Play"><img="../WUI/qrecord/images/play.png" alt="播放"></button>
需要注意的是：①上面的录音按钮没有添加onclick时间，目的是为了方便自定义音频的文件名，我使用的是jquery，对文件名进行自定义：代码如下：
<script type="text/javascript">
$("#start_record").on("click",function(){
var doc_id = 332;
var page_id = 1;
FWRecorder.record('audio', 'project_'+doc_id+"_"+page_id);
});
</script>
②如果使用jquery的话，引用的顺序需在SWFObject和recorder之前，否则会报错。说是没有找到jquery，因为dom流进行加载的顺序是自上而下，所以jquery在后面的话，前面的js库会因为找不到文件而报错。
然后是main.js文件
$(function () {
var $uploadStatus = $('#upload_status'),
$showLevelButton = $('.show_level'),
$hideLevelButton = $('.hide_level'),
$level = $('.control_panel .level');
var CLASS_CONTROLS = "control_panel";
var CLASS_RECORDING = "recording";
var CLASS_PLAYBACK_READY = "playback_ready";
var CLASS_PLAYING = "playing";
var CLASS_PLAYBACK_PAUSED = "playback_paused";
// Embedding flash object ---------------------------------------------------------------------------------------------
var appWidth = 24;
var appHeight = 24;
var flashvars = {'upload_image': '../WUI/qrecord/images/upload.png'};
var params = {};
var attributes = {'id': "recorderApp", 'name': "recorderApp"};
swfobject.embedSWF("../WUI/qrecord/recorder.swf", "flashcontent", appWidth, appHeight, "11.0.0", "", flashvars, params, attributes);
// Handling FWR events ------------------------------------------------------------------------------------------------
window.fwr_event_handler = function fwr_event_handler() {
$('#status').text("最后的录音事件：" + arguments[0]);
var name, $controls;
switch (arguments[0]) {
case "ready":
var width = parseInt(arguments[1]);
var height = parseInt(arguments[2]);
FWRecorder.uploadFormId = "#uploadForm";
FWRecorder.uploadFieldName = "record_file";
FWRecorder.connect("recorderApp", 0);
FWRecorder.recorderOriginalWidth = width;
FWRecorder.recorderOriginalHeight = height;
$('.save_button').css({'width': width, 'height': height});
break;
case "no_microphone_found":
break;
case "microphone_user_request":
recorderEl().addClass("floating");
FWRecorder.showPermissionWindow();
break;
case "microphone_connected":
FWRecorder.isReady = true;
$uploadStatus.css({'color': '#000'});
break;
case "permission_panel_closed":
FWRecorder.defaultSize();
recorderEl().removeClass("floating");
break;
case "recording":
name = arguments[1];
$controls = controlsEl(name);
FWRecorder.hide();
setControlsClass($controls, CLASS_RECORDING);
break;
case "recording_stopped":
name = arguments[1];
$controls = controlsEl(name);
var duration = arguments[2];
FWRecorder.show();
setControlsClass($controls, CLASS_PLAYBACK_READY);
$('#duration').text(duration.toFixed(4) + " seconds");
break;
case "microphone_level":
$level.css({width: arguments[1] * 50 + '%'});
break;
case "observing_level":
$showLevelButton.hide();
$hideLevelButton.show();
break;
case "observing_level_stopped":
$showLevelButton.show();
$hideLevelButton.hide();
$level.css({width: 0});
break;
case "playing":
name = arguments[1];
$controls = controlsEl(name);
setControlsClass($controls, CLASS_PLAYING);
break;
case "playback_started":
name = arguments[1];
var latency = arguments[2];
break;
case "stopped":
name = arguments[1];
$controls = controlsEl(name);
setControlsClass($controls, CLASS_PLAYBACK_READY);
break;
case "playing_paused":
name = arguments[1];
$controls = controlsEl(name);
setControlsClass($controls, CLASS_PLAYBACK_PAUSED);
break;
case "save_pressed":
FWRecorder.updateForm();
break;
case "saving":
name = arguments[1];
break;
case "saved":
name = arguments[1];
var data = $.parseJSON(arguments[2]);
if (data.saved) {
$('#upload_status').css({'color': '#0F0'}).text(name + " was saved");
$('#qrecordId').val(data.id);
} else {
$('#upload_status').css({'color': '#F00'}).text(name + " was not saved");
}
break;
case "save_failed":
name = arguments[1];
var errorMessage = arguments[2];
$uploadStatus.css({'color': '#F00'}).text(name + " failed: " + errorMessage);
break;
case "save_progress":
name = arguments[1];
var bytesLoaded = arguments[2];
var bytesTotal = arguments[3];
$uploadStatus.css({'color': '#000'}).text(name + " progress: " + bytesLoaded + " / " + bytesTotal);
break;
}
};
// Helper functions ---------------------------------------------------------------------------------------------------
function setControlsClass($controls, className) {
$controls.attr('class', CLASS_CONTROLS + ' ' + className);
}
function controlsEl(name) {
return $('#recorder-' + name);
}
function recorderEl() {
return $('#recorderApp');
}
// Button actions -----------------------------------------------------------------------------------------------------
window.microphonePermission = function () {
recorderEl().addClass("floating");
FWRecorder.showPermissionWindow({permanent: true});
};
window.configureMicrophone = function () {
if (!FWRecorder.isReady) {
return;
}
FWRecorder.configure($('#rate').val(), $('#gain').val(), $('#silenceLevel').val(), $('#silenceTimeout').val());
FWRecorder.setUseEchoSuppression($('#useEchoSuppression').is(":checked"));
FWRecorder.setLoopBack($('#loopBack').is(":checked"));
};
});这是网上的一个demo例子，因为现在是调研阶段没有进行具体的代码开发，里面逻辑不是很复杂，其他的不用太过关注，主要注意的是下面几点：
FWRecorder.uploadFormId = "#uploadForm"; ID对应的是form表单的ID，不能出错。
FWRecorder.uploadFieldName = "record_file"; Form表单提交之后，后台controller获取的数据的name值。
FWRecorder.connect("recorderApp", 0); object中对应的ID。
②里面对应的图片地址也相应的对应自己项目的位置。
③代码中编写了简单的样式设计，自己开发过程中需要按照自己需求进行设计。
最后是后台代码部分：
代码：
@RequestMapping(value = "upload1", method = RequestMethod.POST)
@ResponseBody
public String up(HttpServletRequest request, @RequestParam("record_file") MultipartFile file) throws Exception {
if (file.isEmpty() == false) {
Date currentTime = new Date();
String dateString = formatter.format(currentTime);
System.err.println(dateString);
File tfile = new File("D://test//record//"+file.getOriginalFilename() + "_" + dateString + ".wav");
file.transferTo(tfile);
return "{\"saved\":\"1\"}";
}else{
return "{\"save_failed\":\"1\"}";
}
}后台使用的是注解的方式，取到文件之后保存指定位置。
返回的是一个json字符串，具体的识别逻辑在main.js中有写：如：
case "saved":
name = arguments[1];
var data = $.parseJSON(arguments[2]);
if (data.saved) {
$('#upload_status').css({'color': '#0F0'}).text(name + " was saved");
$('#qrecordId').val(data.id);
} else {
$('#upload_status').css({'color': '#F00'}).text(name + " was not saved");
}
break;
最后貌似这里面不能直接上传文件；大家按照我说的步骤将swfObject文件保存下来：下面文件全部复制之后，新建一个js文件，将内容全部复制进去就能使用了。
首先是SWFObject：
/* SWFObject v2.2 <http://code.google.com/p/swfobject/>
is released under the MIT License <http://www.opensource.org/licenses/mit-license.php>
*/
var swfobject=function(){var D="undefined",r="object",S="Shockwave Flash",W="ShockwaveFlash.ShockwaveFlash",q="application/x-shockwave-flash",R="SWFObjectExprInst",x="onreadystatechange",O=window,j=document,t=navigator,T=false,U=[h],o=[],N=[],I=[],l,Q,E,B,J=false,a=false,n,G,m=true,M=function(){var aa=typeof j.getElementById!=D&&typeof j.getElementsByTagName!=D&&typeof j.createElement!=D,ah=t.userAgent.toLowerCase(),Y=t.platform.toLowerCase(),ae=Y?/win/.test(Y):/win/.test(ah),ac=Y?/mac/.test(Y):/mac/.test(ah),af=/webkit/.test(ah)?parseFloat(ah.replace(/^.*webkit\/(\d+(\.\d+)?).*$/,"$1")):false,X=!+"\v1",ag=[0,0,0],ab=null;if(typeof t.plugins!=D&&typeof t.plugins[S]==r){ab=t.plugins[S].description;if(ab&&!(typeof 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然后是recorder.js
(function(global) {
var Recorder;
var RECORDED_AUDIO_TYPE = "audio/wav";
Recorder = {
recorder: null,
recorderOriginalWidth: 0,
recorderOriginalHeight: 0,
uploadFormId: null,
uploadFieldName: null,
isReady: false,
connect: function(name, attempts) {
if(navigator.appName.indexOf("Microsoft") != -1) {
Recorder.recorder = window[name];
} else {
Recorder.recorder = document[name];
}
if(attempts >= 40) {
return;
}
// flash app needs time to load and initialize
if(Recorder.recorder && Recorder.recorder.init) {
Recorder.recorderOriginalWidth = Recorder.recorder.width;
Recorder.recorderOriginalHeight = Recorder.recorder.height;
if(Recorder.uploadFormId && $) {
var frm = $(Recorder.uploadFormId);
Recorder.recorder.init(frm.attr('action').toString(), Recorder.uploadFieldName, frm.serializeArray());
}
return;
}
setTimeout(function() {Recorder.connect(name, attempts+1);}, 100);
},
playBack: function(name) {
// TODO: Rename to `playback`
Recorder.recorder.playBack(name);
},
pausePlayBack: function(name) {
// TODO: Rename to `pausePlayback`
Recorder.recorder.pausePlayBack(name);
},
playBackFrom: function(name, time) {
// TODO: Rename to `playbackFrom`
Recorder.recorder.playBackFrom(name, time);
},
record: function(name, filename) {
Recorder.recorder.record(name, filename);
},
stopRecording: function() {
Recorder.recorder.stopRecording();
},
stopPlayBack: function() {
// TODO: Rename to `stopPlayback`
Recorder.recorder.stopPlayBack();
},
observeLevel: function() {
Recorder.recorder.observeLevel();
},
stopObservingLevel: function() {
Recorder.recorder.stopObservingLevel();
},
observeSamples: function() {
Recorder.recorder.observeSamples();
},
stopObservingSamples: function() {
Recorder.recorder.stopObservingSamples();
},
resize: function(width, height) {
Recorder.recorder.width = width + "px";
Recorder.recorder.height = height + "px";
},
defaultSize: function() {
Recorder.resize(Recorder.recorderOriginalWidth, Recorder.recorderOriginalHeight);
},
show: function() {
Recorder.recorder.show();
},
hide: function() {
Recorder.recorder.hide();
},
duration: function(name) {
// TODO: rename to `getDuration`
return Recorder.recorder.duration(name || Recorder.uploadFieldName);
},
getBase64: function(name) {
var data = Recorder.recorder.getBase64(name);
return 'data:' + RECORDED_AUDIO_TYPE + ';base64,' + data;
},
getBlob: function(name) {
var base64Data = Recorder.getBase64(name).split(',')[1];
return base64toBlob(base64Data, RECORDED_AUDIO_TYPE);
},
getCurrentTime: function(name) {
return Recorder.recorder.getCurrentTime(name);
},
isMicrophoneAccessible: function() {
return Recorder.recorder.isMicrophoneAccessible();
},
updateForm: function() {
var frm = $(Recorder.uploadFormId);
Recorder.recorder.update(frm.serializeArray());
},
showPermissionWindow: function(options) {
Recorder.resize(240, 160);
// need to wait until app is resized before displaying permissions screen
var permissionCommand = function() {
if (options && options.permanent) {
Recorder.recorder.permitPermanently();
} else {
Recorder.recorder.permit();
}
};
setTimeout(permissionCommand, 1);
},
configure: function(rate, gain, silenceLevel, silenceTimeout) {
rate = parseInt(rate || 22);
gain = parseInt(gain || 100);
silenceLevel = parseInt(silenceLevel || 0);
silenceTimeout = parseInt(silenceTimeout || 4000);
switch(rate) {
case 44:
case 22:
case 11:
case 8:
case 5:
break;
default:
throw("invalid rate " + rate);
}
if(gain < 0 || gain > 100) {
throw("invalid gain " + gain);
}
if(silenceLevel < 0 || silenceLevel > 100) {
throw("invalid silenceLevel " + silenceLevel);
}
if(silenceTimeout < -1) {
throw("invalid silenceTimeout " + silenceTimeout);
}
Recorder.recorder.configure(rate, gain, silenceLevel, silenceTimeout);
},
setUseEchoSuppression: function(val) {
if(typeof(val) != 'boolean') {
throw("invalid value for setting echo suppression, val: " + val);
}
Recorder.recorder.setUseEchoSuppression(val);
},
setLoopBack: function(val) {
if(typeof(val) != 'boolean') {
throw("invalid value for setting loop back, val: " + val);
}
Recorder.recorder.setLoopBack(val);
}
};
function base64toBlob(b64Data, contentType, sliceSize) {
contentType = contentType || '';
sliceSize = sliceSize || 512;
var byteCharacters = atob(b64Data);
var byteArrays = [];
for (var offset = 0; offset < byteCharacters.length; offset += sliceSize) {
var slice = byteCharacters.slice(offset, offset + sliceSize);
var byteNumbers = new Array(slice.length);
for (var i = 0; i < slice.length; i++) {
byteNumbers[i] = slice.charCodeAt(i);
}
var byteArray = new Uint8Array(byteNumbers);
byteArrays.push(byteArray);
}
return new Blob(byteArrays, {type: contentType});
}
global.FWRecorder = Recorder;
})(this);
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