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[英]Connection refused while running .net core 2.0 web api on docker
[英]Web API on IIS says Connection Refused
我正在研究一个包含两个方面的项目:后端数据库的Web UI(Angular 5)和Web API(.NET Core 2.0)我正在使用MySql Engine。
我已经在不同端口的同一台VM机器上托管了Web UI和Web API。 Angular网站在默认端口80上运行,API在端口号8000上托管。
我可以在网络上正确加载网站主页。 但是,当我的网站在PORT 8000上调用该API时,它在chrome控制台中引发“连接被拒绝”错误。 例如:net :: ERR_CONNECTION_REFUSED
我的网站使用的是SSL证书,但我的API未使用。 我仅在我的网站localhost:8000
API URL配置为localhost:8000
。
在我的API startup.cs中,我的配置如下:
public void ConfigureServices(IServiceCollection services)
{
services.AddMvc();
services.AddCors(options =>
{
options.AddPolicy("AllowAllOrigins",
builder => builder.AllowAnyOrigin().AllowAnyMethod().AllowAnyHeader().AllowCredentials());
});
services.Configure<MvcOptions>(options =>
{
options.Filters.Add(new CorsAuthorizationFilterFactory("AllowAllOrigins"));
});
}
public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
env.ConfigureNLog("nlog.config");
app.UseCors("AllowAllOrigins");
app.UseMvc();
loggerFactory.AddNLog();
}
我的Web应用程序在我的本地环境中运行良好。 但是,当我将其托管在VM上时,它没有连接到我的API。
我得到以下错误:
core.js:3121 Angular is running in the development mode. Call enableProdMode() to enable the production mode.
zone.js:2969 OPTIONS http://localhost:8000/api/authentication net::ERR_CONNECTION_REFUSED
scheduleTask @ zone.js:2969
push../node_modules/zone.js/dist/zone.js.ZoneDelegate.scheduleTask @ zone.js:407
onScheduleTask @ zone.js:297
push../node_modules/zone.js/dist/zone.js.ZoneDelegate.scheduleTask @ zone.js:401
push../node_modules/zone.js/dist/zone.js.Zone.scheduleTask @ zone.js:232
push../node_modules/zone.js/dist/zone.js.Zone.scheduleMacroTask @ zone.js:255
scheduleMacroTaskWithCurrentZone @ zone.js:1114
(anonymous) @ zone.js:3001
proto.(anonymous function) @ zone.js:1394
(anonymous) @ http.js:1629
push../node_modules/rxjs/_esm5/internal/Observable.js.Observable._trySubscribe @ Observable.js:43
push../node_modules/rxjs/_esm5/internal/Observable.js.Observable.subscribe @ Observable.js:29
(anonymous) @ subscribeTo.js:21
subscribeToResult @ subscribeToResult.js:11
push../node_modules/rxjs/_esm5/internal/operators/mergeMap.js.MergeMapSubscriber._innerSub @ mergeMap.js:74
push../node_modules/rxjs/_esm5/internal/operators/mergeMap.js.MergeMapSubscriber._tryNext @ mergeMap.js:68
push../node_modules/rxjs/_esm5/internal/operators/mergeMap.js.MergeMapSubscriber._next @ mergeMap.js:51
push../node_modules/rxjs/_esm5/internal/Subscriber.js.Subscriber.next @ Subscriber.js:54
(anonymous) @ scalar.js:5
push../node_modules/rxjs/_esm5/internal/Observable.js.Observable._trySubscribe @ Observable.js:43
push../node_modules/rxjs/_esm5/internal/Observable.js.Observable.subscribe @ Observable.js:29
push../node_modules/rxjs/_esm5/internal/operators/mergeMap.js.MergeMapOperator.call @ mergeMap.js:29
push../node_modules/rxjs/_esm5/internal/Observable.js.Observable.subscribe @ Observable.js:24
push../node_modules/rxjs/_esm5/internal/operators/filter.js.FilterOperator.call @ filter.js:15
push../node_modules/rxjs/_esm5/internal/Observable.js.Observable.subscribe @ Observable.js:24
push../node_modules/rxjs/_esm5/internal/operators/map.js.MapOperator.call @ map.js:18
push../node_modules/rxjs/_esm5/internal/Observable.js.Observable.subscribe @ Observable.js:24
push../src/app/login/login.component.ts.LoginComponent.onSubmit @ login.component.ts:53
(anonymous) @ LoginComponent.html:13
handleEvent @ core.js:10251
callWithDebugContext @ core.js:11344
debugHandleEvent @ core.js:11047
dispatchEvent @ core.js:7710
(anonymous) @ core.js:9190
schedulerFn @ core.js:3563
push../node_modules/rxjs/_esm5/internal/Subscriber.js.SafeSubscriber.__tryOrUnsub @ Subscriber.js:196
push../node_modules/rxjs/_esm5/internal/Subscriber.js.SafeSubscriber.next @ Subscriber.js:134
push../node_modules/rxjs/_esm5/internal/Subscriber.js.Subscriber._next @ Subscriber.js:77
push../node_modules/rxjs/_esm5/internal/Subscriber.js.Subscriber.next @ Subscriber.js:54
push../node_modules/rxjs/_esm5/internal/Subject.js.Subject.next @ Subject.js:47
push../node_modules/@angular/core/fesm5/core.js.EventEmitter.emit @ core.js:3535
push../node_modules/@angular/forms/fesm5/forms.js.FormGroupDirective.onSubmit @ forms.js:4560
(anonymous) @ LoginComponent.html:13
handleEvent @ core.js:10251
callWithDebugContext @ core.js:11344
debugHandleEvent @ core.js:11047
dispatchEvent @ core.js:7710
(anonymous) @ core.js:8154
(anonymous) @ platform-browser.js:988
push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask @ zone.js:421
onInvokeTask @ core.js:3811
push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask @ zone.js:420
push../node_modules/zone.js/dist/zone.js.Zone.runTask @ zone.js:188
push../node_modules/zone.js/dist/zone.js.ZoneTask.invokeTask @ zone.js:496
invokeTask @ zone.js:1540
globalZoneAwareCallback @ zone.js:1566
core.js:1673 ERROR HttpErrorResponse {headers: HttpHeaders, status: 0, statusText: "Unknown Error", url: null, ok: false, …}
请给我您的建议。
谢谢
经过更彻底的搜索。 我发现只有两个问题:
对我来说,这是第一种情况。
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