angular - Angular 8 大超时
问题描述
我正面临 Angular 8 应用程序的超时问题。我的应用程序需要向一个 java 后端服务器发送一个 POST 查询,该服务器将处理一个脚本 7-8 分钟。java 应用程序继续处理,但由于超时,我将无法读取响应。我尝试了建议此链接中的解决方案默认和特定请求超时,我能够减少超时。不幸的是,当我设置一个大的超时值(900000)时,我在 4 分钟后遇到超时问题。当我使用 Postman 测试 POST 查询时,我没有遇到问题。
这是 HttpInterceptor 。
import { Inject, Injectable, InjectionToken } from '@angular/core';
import { HttpEvent, HttpHandler, HttpInterceptor, HttpRequest } from '@angular/common/http';
import { Observable } from 'rxjs';
import { timeout } from 'rxjs/operators';
export const DEFAULT_TIMEOUT = new InjectionToken<number>('defaultTimeout');
@Injectable()
export class TimeoutInterceptor implements HttpInterceptor {
constructor(@Inject(DEFAULT_TIMEOUT) protected defaultTimeout: number) {
}
intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
return next.handle(req).pipe(timeout(900000));
}
}
应用程序模块
providers: [
[{ provide: HTTP_INTERCEPTORS, useClass: TimeoutInterceptor, multi: true }],
[{ provide: DEFAULT_TIMEOUT, useValue: 900000 }],
...
],
我的服务
import(docType:any,docContent:any){
let params = new HttpParams();
params = params.append('docType', docType);
params = params.append('docContent', docContent);
return this.http.post<any>(`${BASE_PATH}/repriseManager/importAgreements`,{docType,docContent});
}
控制台日志
net::ERR_EMPTY_RESPONSE
scheduleTask @ zone.js:3372
push../node_modules/zone.js/dist/zone.js.ZoneDelegate.scheduleTask @ zone.js:410
onScheduleTask @ zone.js:301
push../node_modules/zone.js/dist/zone.js.ZoneDelegate.scheduleTask @ zone.js:404
push../node_modules/zone.js/dist/zone.js.Zone.scheduleTask @ zone.js:238
push../node_modules/zone.js/dist/zone.js.Zone.scheduleMacroTask @ zone.js:261
scheduleMacroTaskWithCurrentZone @ zone.js:1194
(anonymous) @ zone.js:3405
proto.<computed> @ zone.js:1518
(anonymous) @ http.js:1792
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/tap.js.DoOperator.call @ tap.js:18
push../node_modules/rxjs/_esm5/internal/Observable.js.Observable.subscribe @ Observable.js:24
push../node_modules/rxjs/_esm5/internal/operators/catchError.js.CatchOperator.call @ catchError.js:18
push../node_modules/rxjs/_esm5/internal/Observable.js.Observable.subscribe @ Observable.js:24
push../node_modules/rxjs/_esm5/internal/operators/timeoutWith.js.TimeoutWithOperator.call @ timeoutWith.js:25
push../node_modules/rxjs/_esm5/internal/Observable.js.Observable.subscribe @ Observable.js:24
(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:53
(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/catchError.js.CatchOperator.call @ catchError.js:18
push../node_modules/rxjs/_esm5/internal/Observable.js.Observable.subscribe @ Observable.js:24
push../node_modules/rxjs/_esm5/internal/operators/catchError.js.CatchOperator.call @ catchError.js:18
push../node_modules/rxjs/_esm5/internal/Observable.js.Observable.subscribe @ Observable.js:24
(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:53
(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/features/dashboard/search-contract/contract-search-contract.component.ts.DContractSearchContractComponent.import @ contract-search-cont…ct.component.ts:180
eval @ DContractSearchContractComponent.html:87
handleEvent @ core.js:29239
callWithDebugContext @ core.js:30309
debugHandleEvent @ core.js:30036
dispatchEvent @ core.js:19859
(anonymous) @ core.js:28448
(anonymous) @ platform-browser.js:1032
push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask @ zone.js:423
onInvokeTask @ core.js:26247
push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask @ zone.js:422
push../node_modules/zone.js/dist/zone.js.Zone.runTask @ zone.js:195
push../node_modules/zone.js/dist/zone.js.ZoneTask.invokeTask @ zone.js:498
invokeTask @ zone.js:1693
globalZoneAwareCallback
我究竟做错了什么?
谢谢
解决方案
推荐阅读
- powershell - Azure PowerShell Connect-AzureAD 和 Connect-MsolService 都带有 MFA 连接
- sql - 使用 XML PATH 在一个 XMLFILE 中的多个图像
- r - 如何从 lmer 模型中仅提取随机效应相关参数?
- php - 如何在 WooCommerce 商店页面上“缺货”10 天后隐藏缺货产品
- postgresql - Postgres.exe 崩溃并关闭所有应用程序,恢复并再次运行
- javascript - Javascript const变量在与另一个变量相乘后发生变化
- css - 带有文本溢出省略号的非常长标签的按钮的最大宽度为 700 像素,但如果视口变小应该缩小,不知道
- python - 创建 3x3 matplotlib 子图,但在某些位置缺少图
- .net - dot net 应用程序未构建。找不到错误包
- php - TCPDF:为什么多单元格的位置是从另一个元素继承的?