Angular4.x通過(guò)路由守衛(wèi)進(jìn)行路由重定向?qū)崿F(xiàn)根據(jù)條件跳轉(zhuǎn)到相應(yīng)的頁(yè)面(推薦)

更新時(shí)間：2018年05月10日 08:35:56 作者：尋找石頭魚(yú)

這篇文章主要介紹了Angular4.x通過(guò)路由守衛(wèi)進(jìn)行路由重定向，實(shí)現(xiàn)根據(jù)條件跳轉(zhuǎn)到相應(yīng)的頁(yè)面,這個(gè)功能在網(wǎng)上商城項(xiàng)目上經(jīng)常會(huì)用到，下面小編給大家?guī)?lái)了解決方法一起看看吧

需求：

最近在做一個(gè)網(wǎng)上商城的項(xiàng)目，技術(shù)用的是Angular4.x。有一個(gè)很常見(jiàn)的需求是：用戶(hù)在點(diǎn)擊“我的”按鈕時(shí)讀取cookie，如果有數(shù)據(jù)，則跳轉(zhuǎn)到個(gè)人信息頁(yè)面，否則跳轉(zhuǎn)到注冊(cè)或登錄頁(yè)面

解決

在這里通過(guò)Angular的路由守衛(wèi)來(lái)實(shí)現(xiàn)該功能。

1. 配置路由信息

const routes = [
 { path: 'home', component: HomeComponent },
 { path: 'product', component: ProductComponent },
 { path: 'register', component: RegisterComponent },
 { path: 'my', component: MyComponent },
 { path: 'login', component: LoginComponent, canActivate: [RouteguardService] },//canActivate就是路由守衛(wèi)
 { path: '', redirectTo: '/home', pathMatch: 'full' }
]

2. 路由守衛(wèi)條件（RouteguardService.ts）

import { Injectable, Inject } from "@angular/core";
import { DOCUMENT } from "@angular/common";
import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, Router, NavigationStart } from "@angular/router";
import userModel from "./user.model";

@Injectable()
export class RouteguardService implements CanActivate {
  constructor(private router: Router, @Inject(DOCUMENT) private document: any) {
  }

  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {

    // this.setCookie("userId", "18734132326", 10);
    //讀取cookie
    var cookies = this.document.cookie.split(";");
    var userInfo = { userId: "", pw: "" };
    if (cookies.length > 0) {
      for (var cookie of cookies) {
        if (cookie.indexOf("userId=") > -1) {
          userModel.accout = cookie.split("=")[0];
          userModel.password = cookie.split("=")[1];
          userModel.isLogin = false;
        }
      }
    }

    //獲取當(dāng)前路由配置信息
    var path = route.routeConfig.path;
    if (path == "login") {
      if (!userModel.isLogin) {
        //讀取cookie如果沒(méi)有用戶(hù)信息，則跳轉(zhuǎn)到當(dāng)前登錄頁(yè)
        return true;
      } else {
        //如果已經(jīng)登錄了則跳轉(zhuǎn)到個(gè)人信息頁(yè)面，下面語(yǔ)句是通過(guò)ts進(jìn)行路由導(dǎo)航的
        this.router.navigate(['product'])
      }
    }

  }

  setCookie(cname, cvalue, exdays) {
    var d = new Date();
    d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
    var expires = "expires=" + d.toUTCString();
    document.cookie = cname + "=" + cvalue + "; " + expires;
  }
}

總結(jié)

以上所述是小編給大家介紹的Angular4.x通過(guò)路由守衛(wèi)進(jìn)行路由重定向?qū)崿F(xiàn)根據(jù)條件跳轉(zhuǎn)到相應(yīng)的頁(yè)面，希望對(duì)大家有所幫助，如果大家有任何疑問(wèn)請(qǐng)給我留言，小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對(duì)腳本之家網(wǎng)站的支持！

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