angualr routerLink 两种传参方法及参数的使用

1.路径：http://localhost:8080/#/product?id=1

<a [routerLink]="['/product']" [queryParams]="{id:1}">详情</a>

ts获取查询参数：

import { Component, OnInit } from "@angular/core";
import { ActivatedRoute, Router } from "@angular/router";

@Component({
  selector: 'app-product',
  templateUrl: './product.component.html',
  styleUrls: ['./product.component.css']
})
export class ProductComponent implements OnInit {


  private productId : number;
  constructor(private routeInfo:ActivatedRoute, private router: Router) {

  }

  ngOnInit() {
    //获取参数值
    this.productId = this.routeInfo.snapshot.queryParams['id'];
  }

  //跳转其他产品页
  goPage(){
     this.router.navigate(['/product'],{ queryParams: { id: 2 }});
  }

}

2. 路径：http://localhost:8080/#/product/1

<a [routerLink]="['/product',1]">产品</a>

ts获取查询参数：

import { Component, OnInit } from "@angular/core";
import { ActivatedRoute, Params, Router } from "@angular/router";

@Component({
  selector: 'app-product',
  templateUrl: './product.component.html',
  styleUrls: ['./product.component.css']
})
export class ProductComponent implements OnInit {


  private productId : number;
  constructor(private routeInfo:ActivatedRoute, private router: Router) {

  }

  ngOnInit() {
    //获取参数值
    this.productId = this.routeInfo.snapshot.params['id'];
    //另一种方式参数订阅
    this.routeInfo.params.subscribe((params: Params) => this.productId = params['id']);

  }

  //跳转其他产品页
  goPage(){
     this.router.navigate(['/product/2']);
  }

}

第二种方法需要配置路由：

const routes: Routes =[
    {path: 'product/:id',component: ProductComponent}
];