看看效果叭
解压的文件
上传的文件格式
测试1|||测试1的文字测试2|||测试2的文字测试3|||测试3的文字测试4|||测试4的文字测试5|||测试5的文字
实现的逻辑如下
- 上传文件
- 解析txt
- 发送内容至百度语音合成
- 生成文件夹放置本次合成的mp3文件，并压缩成zip
- 发送zip的地址给前端
上传文件
使用了 element-ui 的 el-upload 组件
<el-upload v-loading="loading" class="upload-demo" drag ref="upload" action="#" accept=".txt" :before-upload="onBeforeUploadImage" :http-request="UploadImage" :on-change="fileChange" :file-list="fileList" > <i class="el-icon-upload"></i> <div class="el-upload__text"> 将文件拖到此处，或 <em>点击上传</em> </div> <div class="el-upload__tip" slot="tip">只能上传txt文件，且不超过1M</div></el-upload>
在上传之前判断上传的文件是否符合要求
onBeforeUploadImage(file) { const isTxt = file.type === "text/plain"; const isLt1M = file.size / 1024 / 1024 < 1; if (!isTxt) { this.$message.error("上传文件只能是txt格式!"); } if (!isLt1M) { this.$message.error("上传文件大小不能超过 1MB!"); } return isTxt && isLt1M;}
一次只上传一个文件，在文件列表更新时先清除之前的文件
fileChange(file) { let obj = this.onBeforeUploadImage(file.raw); if (obj) { this.$refs.upload.clearFiles(); this.fileList = [{ name: file.name, url: file.url }]; }}
上传的主要函数
UploadImage(param) { this.loading = true; const formData = new FormData(); formData.append("file", param.file); this.$axios({ url: process.env.VUE_APP_BASE_API + "api/txtToMp3", method: "post", data: formData }) .then(response => { if (response.data.code == 0) { this.loading = false; this.dialogVisible = true; this.url = response.data.data.url; } }) .catch(error => { console.log(error); });}
node代码
用到的依赖项
const formidable = require("formidable"); //获取上传的txt，并保存const path = require("path"); const AipSpeech = require("baidu-aip-sdk").speech; //百度语音合成sdkconst fs = require("fs"); const compressing = require("compressing"); //压缩文件夹用
接口代码
router.post("/txtToMp3", async function (req, res, next) { let form = new formidable.IncomingForm(); form.encoding = "utf-8"; //编码 form.uploadDir = path.join(__dirname + "/../txt"); //保存上传文件地址 form.keepExtensions = true; //保留后缀 form.parse(req, function (err, fields, files) { let filename; filename = files.file.name; let nameArray = filename.split("."); //分割 let type = nameArray[nameArray.length - 1]; let name = ""; for (let i = 0; i < nameArray.length - 1; i++) { name = name + nameArray[i]; } let date = new Date(); let time = "_" + date.getTime(); let avatarName = name + time + "." + type; let newPath = form.uploadDir + "/" + avatarName; fs.renameSync(files.file.path, newPath); //移动文件 fs.readFile(newPath, "utf-8", function (err, data) { if (err) { console.log(err); new Result(null, "读取失败").fail(res); } else { let client = new AipSpeech( 0, "百度语音合成key", "百度语音合成secret" ); let resultData = data.split("\n"); let number = resultData.length; let formTime = new Date().getTime(); let mp3FileDir = path.join(__dirname + "/../mp3_" + formTime); fs.mkdirSync(mp3FileDir); for (let i in resultData) { setTimeout(function(){ if (resultData[i].indexOf("|||") != -1) { let text = resultData[i].split("|||")[1]; // 语音合成，保存到本地文件 client.text2audio(text, { spd: 4, per: 4 }).then( function (result) { if (result.data) { let time = resultData[i].split("|||")[0] + "_voice"; let avatarName_mp3 = mp3FileDir + "/" + time + ".mp3"; fs.writeFileSync(avatarName_mp3, result.data); number--; if (number == 0) { let zipFileName = "zip/mp3_" + formTime + ".zip"; compressing.zip .compressDir(mp3FileDir, zipFileName) .then(() => { let item = { url: zipFileName, }; new Result(item, "压缩成功").success(res); }) .catch((err) => { new Result(null, "压缩失败").fail(res); }); } } else { // 合成服务发生错误 new Result(null, "合成失败").fail(res); } }, function (err) { console.log(err); } ); } else { new Result(null, "文件格式错误").fail(res); } },i * 20) } } }); });});
PS：
在node部分，在判断需要合成的文件是否全部完成时，我是通过number的值等于0判断完成，不知道大佬们有啥好方法不？