如何从URL下载音频文件并将其存储在本地目录中? 我正在使用 Node.js,并尝试了以下代码:
var http = require('http');
var fs = require('fs');
var dest = 'C./test'
var url= 'http://static1.grsites.com/archive/sounds/comic/comic002.wav'
function download(url, dest, callback) {
var file = fs.createWriteStream(dest);
var request = http.get(url, function (response) {
response.pipe(file);
file.on('finish', function () {
file.close(callback); // close() is async, call callback after close completes.
});
file.on('error', function (err) {
fs.unlink(dest); // Delete the file async. (But we don't check the result)
if (callback)
callback(err.message);
});
});
}
没有发生错误,但未找到文件。
重复如何使用 Node.js 下载文件(不使用第三方库)?,但这是特定于您的问题的代码:
var http = require('http');
var fs = require('fs');
var file = fs.createWriteStream("file.wav");
var request = http.get("http://static1.grsites.com/archive/sounds/comic/comic002.wav", function(response) {
response.pipe(file);
});
你的代码实际上没问题,只是没有调用下载函数。尝试将其添加到末尾:
download(url, dest, function(err){
if(err){
console.error(err);
}else{
console.log("Download complete");
}
});
此外,将
dest
的值更改为其他值,例如 "test.wav"
或其他值。 'C./test'
是一条糟糕的路。
我在我的机器上尝试过,你的代码工作正常,只需添加调用并更改
dest
。
这是一个使用 Axios 和可能需要授权的 API 的示例
const Fs = require('fs');
const Path = require('path');
const Axios = require('axios');
async function download(url) {
let filename = "filename";
const username = "user";
const password = "password"
const key = Buffer.from(username + ':' + password).toString("base64");
const path = Path.resolve(__dirname, "audio", filename)
const response = await Axios({
method: 'GET',
url: url,
responseType: 'stream',
headers: { 'Authorization': 'Basic ' + key }
})
response.data.pipe(Fs.createWriteStream(path))
return new Promise((resolve, reject) => {
response.data.on('end', () => {
resolve();
})
response.data.on('error', () => {
reject(err);
})
})
}
这应该可行,我使用来自 freesound.org 的多个来源进行了测试,例如这个: https://cdn.freesound.org/previews/512/512246_7704891-hq.mp3
public static async downloadAudio(audioSource: string, path: string) {
const response = await axios.get(audioSource, {
responseType: 'arraybuffer',
});
const arrayBuffer = response.data;
const uintArray = new Uint8Array(arrayBuffer);
const byteArray = Array.from(uintArray);
const base64String = btoa(byteArray.map((char) => String.fromCharCode(char)).join(''));
// choose an appropriate file writer here
await Filesystem.writeFile({
path: path,
data: base64String,
directory: Directory.Documents,
recursive: true,
});
}