[英]Asp.net Core Web API - Downloading multiple images from blob storage to zip file (via Axios get)
我正在尝试下载包含许多文件(各种类型)的 zip 文件 - 虽然我确实下载了 zip 文件,但不幸的是,当我尝试打开它时会引发以下错误:
图像使用 azure blob 存储进行存储。
如果您有任何想法,请提供帮助。
我的 Vue.js 前端有一个按钮,它调用以下命令:
GetAllAssetResources ({commit},id)
{
console.log("Getting Asset Resources:" + id);
return new Promise((resolve) => {
axios.get(CONFIG.platformEndPoints+ '/asset/downloadResources/' + id)
.then( (response) => {
const url = window.URL.createObjectURL(new Blob([response.data]));
const link = document.createElement('a');
link.href = url;
link.setAttribute('download', 'resources.zip');
document.body.appendChild(link);
link.click();
})
})
}
这调用了我的 controller 方法(使用 C#):
[HttpGet]
public async Task<IActionResult> DownloadResources(string guid)
{
return File(await _ResourceService.DownloadAllAssetResources(guid), MediaTypeNames.Application.Octet, "resources");
}
这调用了我的服务:
public async Task<byte[]> DownloadAllAssetResources(string guid)
{
var assetDetails = await _AssetDetails.FindAsync(guid);
var resources = assetDetails.res.ToList();
byte[] archiveFile;
await using (var archiveStream = new MemoryStream())
{
using (var archive = new ZipArchive(archiveStream, ZipArchiveMode.Create, true))
{
foreach (var file in resources)
{
var fileName = guid+ "_" + file.name;
var zipArchiveEntry = archive.CreateEntry(fileName, CompressionLevel.Fastest);
var bytes = await _Storage.GetBytes("resources", fileName);
await using (var zipStream = zipArchiveEntry.Open())
{
zipStream.Write(bytes, 0, bytes.Length);
}
}
}
archiveFile = archiveStream.ToArray();
}
return archiveFile;
}
这只是更新我的 axios 调用以包含响应类型的情况:
GetAllAssetResources ({commit},assetDetailid)
{
console.log("Getting Asset Resources:" + id);
return new Promise((resolve) => {
axios({
url: CONFIG.platformEndPoints+ '/asset/downloadResources/' + id,
method: 'GET',
responseType: 'blob'})
.then( (response) => {
const url = window.URL.createObjectURL(new Blob([response.data]));
const link = document.createElement('a');
link.href = url;
link.setAttribute('download', 'resources.zip');
document.body.appendChild(link);
link.click();
})
})
},
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