ASP.NET Core上传文件到minio的实现示例
<div id="navCategory"><h5 class="catalogue">目录</h5><ul class="first_class_ul"><li><a href="#_label0">1.用到的依赖包—Minio</a></li><li><a href="#_label1">2.相关代码</a></li><li><a href="#_label2">3.上传测试</a></li></ul></div><p class="maodian"><a name="_label0"></a></p><h2>1.用到的依赖包—Minio</h2><p>使用命令添加依赖，或者使用Nugui搜索minio依赖后添加到指定项目中</p>
<div class="jb51code"><pre class="brush:csharp;">dotnet add package Minio --version 6.0.5</pre></div>
<p>我这里是使用了JetBrains Rider，这工具其实也挺好使的，尤其对于我本身写java的人来说，很容易习惯，无非就是占用内存比起vs code要高不少。</p>
<p style="text-align:center"><img alt="" src="https://img.jbzj.com/file_images/article/202509/2025090308460022.png" /></p>
<p>如果是用vs code，需要先安装nug包管理插件——NuGet Package Manager GUI</p>
<p style="text-align:center"><img alt="" src="https://img.jbzj.com/file_images/article/202509/2025090308460073.png" /></p>
<p>使用command+shift+p(macOS)或者ctrl+shift+p(Windows)，输入nug，然后搜索即可</p>
<p style="text-align:center"><img alt="" src="https://img.jbzj.com/file_images/article/202509/2025090308460041.png" /></p>
<p style="text-align:center"><img alt="" src="https://img.jbzj.com/file_images/article/202509/2025090308460081.png" /></p>
<p class="maodian"><a name="_label1"></a></p><h2>2.相关代码</h2>
<div class="jb51code"><pre class="brush:csharp;">
public async Task<IActionResult> PostUploadFileMinio(string? bucket, IFormFile file)
{
if (file is not { Length: > 0 })
{
return Ok(CommonResult<string>.Failed(500, "文件不能为空"));
}
_service._logger.LogDebug("上传的文件信息==={file}", JsonHelper.Serialize(file));
var response = await _service.UploadFile(bucket, file);
return Ok(CommonResult<FileUploadResp>.Success("上传成功", response));
}</pre></div>
<div class="jb51code"><pre class="brush:csharp;">public async Task<FileUploadResp> UploadFile(string? bucket, IFormFile file)
{
bucket ??= "test";
try
{
var safeFileName = Path.GetFileName(file.FileName);
safeFileName = GenerateUniqueFileName(safeFileName);
await using var stream = file.OpenReadStream();
await _minioClient.PutObjectAsync(new PutObjectArgs()
.WithBucket(bucket)
.WithObject(safeFileName)
.WithStreamData(stream)
.WithObjectSize(file.Length)
.WithContentType(file.ContentType)
);
var endpoint = _minioClient.Config.Endpoint;
if (!Uri.TryCreate(endpoint, UriKind.Absolute, out var uri))
{
_logger.LogError("minio的endpoint无效==={uri}", uri);
throw new ArgumentException("minio端点无效");
}
var fileUrl = $"{endpoint}/{bucket}/{safeFileName}";
var resp = new FileUploadResp(safeFileName, fileUrl);
_logger.LogDebug("文件上传成功==={resp}", JsonHelper.Serialize(resp));
return resp;
}
catch (Exception ex)
{
_logger.LogError(ex, "minio文件上传异常");
throw new Model.CusException.MinioException(500, "文件上传失败，稍后重试");
}
}</pre></div>
<p class="maodian"><a name="_label2"></a></p><h2>3.上传测试</h2>
<p>在swagger中调用上传接口</p>
<p style="text-align:center"><img alt="" src="https://img.jbzj.com/file_images/article/202509/2025090308460061.png" /></p>
<p>控制台日志</p>
<p style="text-align:center"><img alt="" src="https://img.jbzj.com/file_images/article/202509/2025090308460079.png" /></p>
<p>浏览器访问minio图片</p>
<p style="text-align:center"><img alt="" src="https://img.jbzj.com/file_images/article/202509/2025090308460028.png" /></p>
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