上传大文件在 windows 上不起作用？

Question

I am trying to upload the large file(let's consider Human Genome tar file, minimum 2.5gb) using Angular. If I upload it from Linux(in any browser, chrome or Firefox) it is working, But same file upload not working on windows (even chrome browser). Following is a service file,

import { HttpHeaders, HttpClient, HttpParams, HttpEventType } from '@angular/common/http';

@Injectable({
    providedIn: 'root'
})
export class GenomeService {
    baseApiUrl = '###myapiurl###';
    public postGenome = (resrc: string, item: any): Observable<any> => {

        this.headers = this.headers.delete('Content-Type');
        return this._http.post(this.baseApiUrl + resrc + "/", item, {
            headers: this.headers,
            withCredentials: true,
            reportProgress: true,
            observe: 'events'
        }).pipe(
            map((event) => {
                switch (event.type) {
                    case HttpEventType.UploadProgress:
                        const progress = Math.round(100 * event.loaded / event.total);
                        return { status: 'progress', message: progress };
                    case HttpEventType.Response:
                        return event.body;
                    default:
                        return "Error......${event.type}";
                }
            }),
            finalize(() => {
                console.log("done");
            })
        );

    }

}

In the browser.network tabit is showing as net::ERR_CONNECTION_RESET . I don't know, where I am making the mistake..?

Answer 1

Check ( on your backend' ssettings ) some parameter called maxRequestSize or maxRequestLength. It would have been easier if we know what kind of backend you're using. If it's DOT.NET, it would be something like this:

<httpRuntime maxRequestLength="xxx" />

set it depending to your needs

Answer 2

If you are using IIS for hosting your application, then the default upload file size if 4MB . To increase it, use this below section in your web.config .

Note: maxAllowedContentLength is measured in bytes while maxRequestLength is measured in kilobytes which is why the values differ in this config example:

<system.webServer>
  <security>
    <requestFiltering>
      <!-- For 50 MB set maxAllowedContentLength="52428800" -->
      <requestLimits maxAllowedContentLength="52428800" /> 
    </requestFiltering>
  </security>
</system.webServer>

 <!--For 50 MB set maxRequestLength="51200"--> 
<httpRuntime targetFramework="4.5" maxRequestLength="51200" executionTimeout="30" /> 

Hope this helps.