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high-web/src/app/services/Interceptor.service.ts

82 lines
3.0 KiB

import {Injectable} from '@angular/core';
import {
HttpEvent, HttpInterceptor, HttpHandler, HttpRequest, HttpResponse, HttpHeaders
} from '@angular/common/http';
import {catchError, finalize} from 'rxjs/operators';
import {mergeMap} from 'rxjs/operators';
import {Observable} from 'rxjs';
import {NzMessageService} from 'ng-zorro-antd';
import {Router} from '@angular/router';
import {LocalStorageService} from './local-storage.service';
import {TOKEN} from './local-storage.namespace';
@Injectable()
export class InterceptorService implements HttpInterceptor {
constructor(
private message: NzMessageService,
private router: Router,
private storage: LocalStorageService,
) {
}
intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
let secureReq: HttpRequest<any>;
let modifiedHeaders: HttpHeaders;
const token = this.storage.get(TOKEN);
if (token != null) {
modifiedHeaders = req.headers.set('Authorization', token);
}
secureReq = req.clone({
url: req.url,
headers: modifiedHeaders
});
// @ts-ignore
return next.handle(secureReq)
.pipe(
catchError((res: HttpResponse<any>) => {
let msg = '';
switch (res.status) {
case 401:
msg = '身份验证过期,请重新进入页面';
break;
case 200:
msg = '身份验证过期,请重新进入页面';
break;
case 404:
msg = '找不到地址';
break;
case 403:
msg = '业务错误';
break;
case 500:
msg = '服务器发生错误,请重试';
break;
}
this.showError(msg);
return Observable.create(res);
}),
finalize(() => {
}),
mergeMap(
// 有响应时成功;忽略其他事件
(event: any) => {
if (event.body != null) {
if (event.body.return_code === '204001') {
// this.router.navigateByUrl('/error/500');
}
}
if (event.status === 200) {
this.message.remove();
}
return Observable.create(observer => observer.next(event));
}),
);
}
showError(message: string) {
// this.router.navigateByUrl('/error/500');
this.message.remove();
this.message.error(message, {nzDuration: 2000});
}
}