这篇文章主要介绍了微信语音上传 下载功能实例代码,需要的朋友可以参考下

假如现在有一个按钮

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下面就是调用微信jssdk的方法var recorder;

var btnRecord = $('#record');

var startTime = 0;

var recordTimer = 300;

// 发语音

$.ajax({

url: 'url请求需要微信的一些东西 下面success就是返回的东西',

type: 'get',

data: { url: url },

success: function (data) {

var json = $.parseJSON(data);

//alert(json);

//假设已引入微信jssdk。【支持使用 AMD/CMD 标准模块加载方法加载】

wx.config({

debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。

appId: json.appid, // 必填，公众号的唯一标识

timestamp: json.timestamp, // 必填，生成签名的时间戳

nonceStr: json.nonceStr, // 必填，生成签名的随机串

signature: json.signature, // 必填，签名，见附录1

jsApiList: [

"startRecord",

"stopRecord",

"onVoiceRecordEnd",

"playVoice",

"pauseVoice",

"stopVoice",

"onVoicePlayEnd",

"uploadVoice",

"downloadVoice",

] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2

});

wx.ready(function () {

btnRecord.on('touchstart', function (event) {

event.preventDefault();

startTime = new Date().getTime();

// 延时后录音，避免误操作

recordTimer = setTimeout(function () {

wx.startRecord({

success: function () {

localStorage.rainAllowRecord = 'true';

//style="display:block"

$(".voice_icon").css("display", "block");

},

cancel: function () {

layer.open({

content: '用户拒绝了录音授权',

btn: '确定',

shadeClose: false,

});

}

});

}, 300);

}).on('touchend', function (event) {

event.preventDefault();

// 间隔太短

if (new Date().getTime() - startTime < 300) {

startTime = 0;

// 不录音

clearTimeout(recordTimer);

} else { // 松手结束录音

wx.stopRecord({

success: function (res) {

$(".voice_icon").css("display", "none");

voice.localId = res.localId;

// 上传到服务器

uploadVoice();

},

fail: function (res) {

//alert(JSON.stringify(res));

layer.open({

content: JSON.stringify(res),

btn: '确定',

shadeClose: false,

});

}

});

}

});

});

},

error: function () { }

})

上传语音的方法function uploadVoice() {

//调用微信的上传录音接口把本地录音先上传到微信的服务器

//不过，微信只保留3天，而我们需要长期保存，我们需要把资源从微信服务器下载到自己的服务器

wx.uploadVoice({

localId: voice.localId, // 需要上传的音频的本地ID，由stopRecord接口获得

isShowProgressTips: 1, // 默认为1，显示进度提示

success: function (res) {

// alert(JSON.stringify(res));

//把录音在微信服务器上的id(res.serverId)发送到自己的服务器供下载。

voice.serverId = res.serverId;

$.ajax({

url: '/QyhSpeech/DownLoadVoice',

type: 'post',

data: { serverId: res.serverId, Id: Id },

dataType: "json",

success: function (data) {

if (data.Result == true && data.ResultCode == 1) {

layer.open({

content: "录音上传完成！",//data.Message

btn: '确定',

shadeClose: false,

yes: function (index) {

window.location.href = window.location.href;

}

});

}

else {

layer.open({

content: data.Message,

btn: '确定',

shadeClose: false,

});

}

},

error: function (xhr, errorType, error) {

layer.open({

content: error,

btn: '确定',

shadeClose: false,

});

}

});

}

});

}

后台调用的方法 需要一个ffmpeg.exe自行下载//下载语音并且转换的方法

private string GetVoicePath(string voiceId, string access_token)

{

string voice = "";

try

{

Log.Debug("access_token:", access_token);

//调用downloadmedia方法获得downfile对象

DownloadFile downFile = WeiXin.DownloadMedia(voiceId, access_token);

if (downFile.Stream != null)

{

string fileName = Guid.NewGuid().ToString();

//生成amr文件

string amrPath = Server.MapPath("~/upload/audior/");

if (!Directory.Exists(amrPath))

{

Directory.CreateDirectory(amrPath);

}

string amrFilename = amrPath + fileName + ".amr";

//var ss = GetAMRFileDuration(amrFilename);

//Log.Debug("ss", ss.ToString());

using (FileStream fs = new FileStream(amrFilename, FileMode.Create))

{

byte[] datas = new byte[downFile.Stream.Length];

downFile.Stream.Read(datas, 0, datas.Length);

fs.Write(datas, 0, datas.Length);

}

//转换为mp3文件

string mp3Path = Server.MapPath("~/upload/audio/");

if (!Directory.Exists(mp3Path))

{

Directory.CreateDirectory(mp3Path);

}

string mp3Filename = mp3Path + fileName + ".mp3";

AudioHelper.ConvertToMp3(Server.MapPath("~/ffmpeg/"), amrFilename, mp3Filename);

voice = fileName;

Log.Debug("voice:", voice);

}

}

catch { }

return voice;

}

调用GetVoicePath//下载微信语音文件

public JsonResult DownLoadVoice()

{

var file = "";

try

{

var serverId = Request["serverId"];//文件的serverId

file = GetVoicePath(serverId, CacheHelper.GetAccessToken());

return Json(new ResultJson { Message = file, Result = true, ResultCode = 1 });

}

catch (Exception ex)

{

return Json(new ResultJson { Message = ex.Message, Result = false, ResultCode = 0 });

}

}

AudioHelper类using System;

using System.Collections.Generic;

using System.Diagnostics;

using System.Linq;

using System.Text;

using System.Text.RegularExpressions;

using System.Threading;

namespace EYO.Common

{

///

/// 声音帮助类

///

public sealed class AudioHelper

{

private const string FfmpegUsername = "ffmpeg";

private const string FfmpegPassword = "it4pl803";

///

/// 音频转换

///

/// ffmpeg文件目录

/// 源文件

/// 目标文件

///

public static string ConvertToMp3(string ffmpegPath, string soruceFilename, string targetFileName)

{

//string cmd = ffmpegPath + @"\ffmpeg.exe -i " + soruceFilename + " " + targetFileName;

string cmd = ffmpegPath + @"\ffmpeg.exe -i " + soruceFilename + " -ar 44100 -ab 128k " + targetFileName;

return ConvertWithCmd(cmd);

}

private static string ConvertWithCmd(string cmd)

{

try

{

System.Diagnostics.Process process = new System.Diagnostics.Process();

process.StartInfo.FileName = "cmd.exe";

process.StartInfo.UseShellExecute = false;

process.StartInfo.CreateNoWindow = true;

process.StartInfo.RedirectStandardInput = true;

process.StartInfo.RedirectStandardOutput = true;

process.StartInfo.RedirectStandardError = true;

process.Start();

process.StandardInput.WriteLine(cmd);

process.StandardInput.AutoFlush = true;

Thread.Sleep(1000);

process.StandardInput.WriteLine("exit");

process.WaitForExit();

string outStr = process.StandardOutput.ReadToEnd();

process.Close();

return outStr;

}

catch (Exception ex)

{

return "error" + ex.Message;

}

}

}

}

文中标记红色的需要以下一个类库 放在文中最后链接里面 到时候直接放到项目里面即可(我也是找到)