修改路径

src/app/view/admin/auth.guard.ts

@@ -0,0 +1,70 @@
+import {Injectable} from '@angular/core';
+import {CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, UrlTree, Router} from '@angular/router';
+import {Observable, Observer} from 'rxjs';
+import {User} from '../../class/User';
+import {GlobalUserService} from '../../services/global-user.service';
+
+@Injectable({
+    providedIn: 'root'
+})
+export class AuthGuard implements CanActivate {
+
+    constructor(private userService: GlobalUserService, private router: Router) {
+        // this.userService.refreshUserInfo();
+    }
+
+    userInfo: User;
+    visitCount: number = 0; // 记录一共走过几次canActivate
+    private path: string;
+    private readonly loginPath: string = '/user/login';
+    private observable: Observable<boolean>;
+
+    canActivate(next: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> {
+        this.path = state.url.indexOf('?') > 0 ? state.url.substr(0, state.url.indexOf('?')) : state.url;
+        this.visitCount++;
+        this.observable = new Observable<boolean>(observer => {
+            if (!this.userInfo) {
+                this.watchUserInfo(observer);
+            } else {
+                this.checkPath(observer);
+            }
+        });
+        return this.observable;
+    }
+
+    watchUserInfo(observer: Observer<boolean>) {
+        this.userService.watchUserInfo({
+            complete: null,
+            error: (err) => {
+                // 请求重复
+                if (err.code !== -1) {
+                    observer.next(false);
+                    this.router.navigateByUrl(this.loginPath);
+                }
+            },
+            next: data => {
+                this.userInfo = data.result;
+                this.checkPath(observer);
+            }
+        })
+    }
+
+
+    checkPath(observer: Observer<boolean>) {
+        switch (this.path) {
+            case '/admin/article':
+            case '/admin/link':
+            case '/admin/tag':
+            case '/admin/update':
+            case '/admin/user':
+            case '/admin/visitor':
+                if (this.userInfo.role !== 'admin') {
+                    observer.next(false)
+                    if (this.visitCount === 1) this.router.navigateByUrl('/admin')
+                    return;
+                }
+        }
+        observer.next(true);
+    }
+
+}