Angular 路由器在路由器变量中处理“/”

Question

我一直在使用 routing 进行 Angular 项目，所以让我们考虑下面这样的路线。

  {
    path : 'preview/:Id',
    loadChildren : () => import('./path/preview/preview.module').then( m => m.PreviewModule),
  }

所以这个 route 可能有像 (a-zA-Z0-9) 这样的字母数字值，也有像 / 这样的特殊字符，由 crypto.js 产生的哈希值如下所示。

preview/QQZnNw+VjBg/cAXvy6nxdiQ==

所以在上面的这条路线中，参数 Id 会有这样的值 QQZnNw+VjBg/cAXvy6nxdiQ== ，这就是我想要达到的目标。

Error : But unfortunately am getting error stating unrecognised route because , this above value has "/" in its route.

之前我尝试过的是，我尝试将这样的正则表达式 /:Id(/[\S]+/g) 添加到路由参数中，以便它可以接受这条路由，

  {
    path : 'preview/:Id(/[\S]+/g)',
    loadChildren : () => import('./path/preview/preview.module').then( m => m.PreviewModule),
  }

拜托，谁能帮我想个办法。

Answer 1

您可以使用 UrlMatcher.

function slashMatcher(path: string, param: string): UrlMatcher {
  return (
    segments: UrlSegment[],
    group: UrlSegmentGroup,
    route: Route
  ): UrlMatchResult => {
    const { length } = segments;
    const firstSegment = segments[0];
    if (firstSegment.path === path && length >= 2) { // firstSegment.path == preview
      const paramSegments = segments.slice(1);
      const paramPaths = paramSegments.map(segment => segment.path); // ["QQZnNw+VjBg", "cAXvy6nxdiQ=="]
      const mergedParam = paramPaths.join("/"); // QQZnNw+VjBg/cAXvy6nxdiQ==
      const idSegment: UrlSegment = new UrlSegment(mergedParam, { [param]: mergedParam });
      return { consumed: segments, posParams: { [param]: idSegment } };
    }
    return null;
  };
}

const routes: Routes = [
  { 
    matcher: slashMatcher('preview', 'Id'), 
    loadChildren : () => import('./path/preview/preview.module').then( m => m.PreviewModule),
  },
];

// In component
const id$ = this.route.paramMap.pipe(map(params => params.get('Id')));

Answer 2

多亏了这个，我找到了解决方法。

I have created two utility functions to replace "/" with some hashcode when encrypting and while decrypting that hashcode back to "/".

 convertSpecial = (text: string) => {
    const ciphertext = this.encrypt(text);
    return ciphertext.replace(/\+/g,'p1L2u3S').replace(/\//g,'s1L2a3S4h').replace(/=/g,'e1Q2u3A4l');
  }

  unconvertSpecial = (ciphertext: string) => {
    ciphertext = ciphertext.toString().replace(/p1L2u3S/g, '+' ).replace(/s1L2a3S4h/g, '/').replace(/e1Q2u3A4l/g, '=');
    const text = this.decrypt(ciphertext);
    return text;
  }

所以在重定向时，

<a href="#" [routerLink]="['/preview', convertSpecial(item?._id)]" > </a>

关于安装组件，

ngOnit()
{
this.Id = this.unconvertSpecial(this.Id);
}

Angular 路由器在路由器变量中处理“/”

Angular Router handling "/" in a router variable

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