Javascript 以角度获取当前url

如何获取Angular 4中的当前url？我在网上搜索了很多，但找不到解决办法

应用程序模块.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { RouterModule, Router } from '@angular/Router';

import { AppComponent } from './app.component';
import { TestComponent } from './test/test.component';
import { OtherComponent } from './other/other.component';
import { UnitComponent } from './unit/unit.component';

@NgModule ({
  declarations: [
    AppComponent,
    TestComponent,
    OtherComponent,
    UnitComponent
  ],

  imports: [
    BrowserModule,
    RouterModule.forRoot([
        {
            path: 'test',
            component: TestComponent
        },
        {
            path: 'unit',
            component: UnitComponent
        },
        {
            path: 'other',
            component: OtherComponent
        }
    ]),
  ],

  providers: [],
  bootstrap: [AppComponent]
})

export class AppModule { }

import { Component} from '@angular/core';

@Component ({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})

export class AppComponent{
    title = 'Angular JS 4';
    arr = ['abcd','xyz','pqrs'];
}

import { Component, OnInit } from '@angular/core';
import { Location } from '@angular/common';
import { Router } from '@angular/router';

@Component({
  selector: 'app-other',
  templateUrl: './other.component.html',
  styleUrls: ['./other.component.css']
})

export class OtherComponent implements OnInit {

    public href: string = "";
    url: string = "asdf";

    constructor(private router : Router) {}

    ngOnInit() {
        this.href = this.router.url;
        console.log(this.router.url);
    }
}

import { Component, OnInit } from '@angular/core';
import { Location } from '@angular/common';
import { Router } from '@angular/router';

@Component({
  selector: 'app-test',
  templateUrl: './test.component.html',
  styleUrls: ['./test.component.css']
})

export class TestComponent implements OnInit {
    route: string;
    currentURL='';

    constructor() { 
        this.currentURL = window.location.href; 
    }

    ngOnInit() { }
}

app.component.html

<!-- The content below is only a placeholder and can be replaced -->
<div>
    <h1>Welcome to {{title}}!!</h1>

    <ul>
        <li>
            <a routerLink="/test">Test</a>
        </li>
        <li>
             <a routerLink="/unit">Unit</a>  
        </li>
        <li>
            <a routerLink="/other">Other</a>
        </li>
    </ul>
</div>
<br/>
<router-outlet></router-outlet>

---

其他.component.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { RouterModule, Router } from '@angular/Router';

import { AppComponent } from './app.component';
import { TestComponent } from './test/test.component';
import { OtherComponent } from './other/other.component';
import { UnitComponent } from './unit/unit.component';

@NgModule ({
  declarations: [
    AppComponent,
    TestComponent,
    OtherComponent,
    UnitComponent
  ],

  imports: [
    BrowserModule,
    RouterModule.forRoot([
        {
            path: 'test',
            component: TestComponent
        },
        {
            path: 'unit',
            component: UnitComponent
        },
        {
            path: 'other',
            component: OtherComponent
        }
    ]),
  ],

  providers: [],
  bootstrap: [AppComponent]
})

export class AppModule { }

import { Component} from '@angular/core';

@Component ({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})

export class AppComponent{
    title = 'Angular JS 4';
    arr = ['abcd','xyz','pqrs'];
}

import { Component, OnInit } from '@angular/core';
import { Location } from '@angular/common';
import { Router } from '@angular/router';

@Component({
  selector: 'app-other',
  templateUrl: './other.component.html',
  styleUrls: ['./other.component.css']
})

export class OtherComponent implements OnInit {

    public href: string = "";
    url: string = "asdf";

    constructor(private router : Router) {}

    ngOnInit() {
        this.href = this.router.url;
        console.log(this.router.url);
    }
}

import { Component, OnInit } from '@angular/core';
import { Location } from '@angular/common';
import { Router } from '@angular/router';

@Component({
  selector: 'app-test',
  templateUrl: './test.component.html',
  styleUrls: ['./test.component.css']
})

export class TestComponent implements OnInit {
    route: string;
    currentURL='';

    constructor() { 
        this.currentURL = window.location.href; 
    }

    ngOnInit() { }
}

测试组件.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { RouterModule, Router } from '@angular/Router';

import { AppComponent } from './app.component';
import { TestComponent } from './test/test.component';
import { OtherComponent } from './other/other.component';
import { UnitComponent } from './unit/unit.component';

@NgModule ({
  declarations: [
    AppComponent,
    TestComponent,
    OtherComponent,
    UnitComponent
  ],

  imports: [
    BrowserModule,
    RouterModule.forRoot([
        {
            path: 'test',
            component: TestComponent
        },
        {
            path: 'unit',
            component: UnitComponent
        },
        {
            path: 'other',
            component: OtherComponent
        }
    ]),
  ],

  providers: [],
  bootstrap: [AppComponent]
})

export class AppModule { }

import { Component} from '@angular/core';

@Component ({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})

export class AppComponent{
    title = 'Angular JS 4';
    arr = ['abcd','xyz','pqrs'];
}

import { Component, OnInit } from '@angular/core';
import { Location } from '@angular/common';
import { Router } from '@angular/router';

@Component({
  selector: 'app-other',
  templateUrl: './other.component.html',
  styleUrls: ['./other.component.css']
})

export class OtherComponent implements OnInit {

    public href: string = "";
    url: string = "asdf";

    constructor(private router : Router) {}

    ngOnInit() {
        this.href = this.router.url;
        console.log(this.router.url);
    }
}

import { Component, OnInit } from '@angular/core';
import { Location } from '@angular/common';
import { Router } from '@angular/router';

@Component({
  selector: 'app-test',
  templateUrl: './test.component.html',
  styleUrls: ['./test.component.css']
})

export class TestComponent implements OnInit {
    route: string;
    currentURL='';

    constructor() { 
        this.currentURL = window.location.href; 
    }

    ngOnInit() { }
}

现在我在点击其他链接后发现了控制台问题

ERROR Error: Uncaught (in promise): Error: No provider for Router!

---

您可以使用@angular/common中提供的位置服务，通过下面的代码，您可以获得位置或当前URL

import { Component, OnInit } from '@angular/core';
import { Location } from '@angular/common';
import { Router } from '@angular/router';

@Component({
  selector: 'app-top-nav',
  templateUrl: './top-nav.component.html',
  styleUrls: ['./top-nav.component.scss']
})
export class TopNavComponent implements OnInit {

  route: string;

  constructor(location: Location, router: Router) {
    router.events.subscribe((val) => {
      if(location.path() != ''){
        this.route = location.path();
      } else {
        this.route = 'Home'
      }
    });
  }

  ngOnInit() {
  }

}

这里是参考链接，我从这里复制了这个东西来获取我项目的位置。 使用纯JavaScript时：

console.log（window.location.href）

使用角度：

this.router.url

import { Component } from '@angular/core';
import { Router } from '@angular/router';

@Component({
    template: 'The href is: {{href}}'
    /*
    Other component settings
    */
})
export class Component {
    public href: string = "";

    constructor(private router: Router) {}

    ngOnInit() {
        this.href = this.router.url;
        console.log(this.router.url);
    }
}

---

plunkr在这里：

其他.component.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { RouterModule, Router } from '@angular/Router';

import { AppComponent } from './app.component';
import { TestComponent } from './test/test.component';
import { OtherComponent } from './other/other.component';
import { UnitComponent } from './unit/unit.component';

@NgModule ({
  declarations: [
    AppComponent,
    TestComponent,
    OtherComponent,
    UnitComponent
  ],

  imports: [
    BrowserModule,
    RouterModule.forRoot([
        {
            path: 'test',
            component: TestComponent
        },
        {
            path: 'unit',
            component: UnitComponent
        },
        {
            path: 'other',
            component: OtherComponent
        }
    ]),
  ],

  providers: [],
  bootstrap: [AppComponent]
})

export class AppModule { }

import { Component} from '@angular/core';

@Component ({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})

export class AppComponent{
    title = 'Angular JS 4';
    arr = ['abcd','xyz','pqrs'];
}

import { Component, OnInit } from '@angular/core';
import { Location } from '@angular/common';
import { Router } from '@angular/router';

@Component({
  selector: 'app-other',
  templateUrl: './other.component.html',
  styleUrls: ['./other.component.css']
})

export class OtherComponent implements OnInit {

    public href: string = "";
    url: string = "asdf";

    constructor(private router : Router) {}

    ngOnInit() {
        this.href = this.router.url;
        console.log(this.router.url);
    }
}

import { Component, OnInit } from '@angular/core';
import { Location } from '@angular/common';
import { Router } from '@angular/router';

@Component({
  selector: 'app-test',
  templateUrl: './test.component.html',
  styleUrls: ['./test.component.css']
})

export class TestComponent implements OnInit {
    route: string;
    currentURL='';

    constructor() { 
        this.currentURL = window.location.href; 
    }

    ngOnInit() { }
}

因此，最终正确的解决方案是：

import { Component, OnInit } from '@angular/core';
import { Location } from '@angular/common';
import { Router } from '@angular/router'; 

/* 'router' it must be in small case */

    @Component({
      selector: 'app-other',
      templateUrl: './other.component.html',
      styleUrls: ['./other.component.css']
    })

    export class OtherComponent implements OnInit {

        public href: string = "";
        url: string = "asdf";

        constructor(private router : Router) {} // make variable private so that it would be accessible through out the component

        ngOnInit() {
            this.href = this.router.url;
            console.log(this.router.url);
        }
    }

---

哪个网址？？？浏览器的url，并请添加一些代码的东西，你尝试了，以便了解你的问题，在更多details@MaciejTreder：已通过此链接，但它不起作用。您可以从“@angular/core”作为导入{Component}”@组件（{selector:'app root'，templateUrl:'./app.Component.html'，styleUrls:['./app.Component.css']}）导出类AppComponent{title='app'；currentURL=''；constructor（）{this.currentURL=window.location.href；}}您从“@angular/Router”导入{RouterModule Router}时输入了一个打字错误应该是

@angular/router

。我试图在plunkr中重现您的问题。一切正常：出现错误：类型“”上不存在属性“router”：（您是否向组件构造函数提供了路由器？是否导入了RouterModule？检查此plunker：您是否检查了plunker？它是否在您的端工作？

window.location.href

正在返回页面的绝对url（包括协议和域）当

this.router.url

返回应用程序内部的相对路径时…我真的不明白这是一个被接受的答案，因为这个解决方案返回了两个完全不同的结果！！！我也不明白链接的问题询问的结果是如何被标记为重复的路由url当这里的问题是询问绝对路径时，您能解释一下为什么这是正确的解决方案吗？我更希望得到一个类型为

urlsecgment[]

的数组，而不是使用

路由器

@ndgeek最好是使用

public href:string=“”

替换为

get

属性。这样就不需要在

ngOnInit

中分配值，同时还具有始终最新的路由器URL。因此：

get href（）；字符串{返回This.router.URL；}

。也没有必要将其设置为

public

，因为这是默认设置。比所有这些使用

ActivatedRoute

等的技巧简单得多。当url更改时，此答案会更新当前url，其他选项您可以使用first（）运算符发出第一个事件：

router.events.pipe（first（））.subscribe（（val）=>{…}）；