1

我正在处理此代码Angular 5.2.10并且Angular CLI 1.7.4：

@Injectable()
export class FmCookieService {
  constructor(@Optional() @Inject(REQUEST) private _request: Request) { }

  ...
}

我仅在服务器平台上注入由REQUEST提供的令牌并使用其值。@nguniversal/express-engine

我正在尝试升级到Angular 6并且Angular CLI 6在编译时出现以下错误：

ERROR in ./node_modules/cookie-signature/index.js
Module not found: Error: Can't resolve 'crypto' in 'C:\Projects\POCs\cli6-test\node_modules\cookie-signature'
ERROR in ./node_modules/etag/index.js
Module not found: Error: Can't resolve 'crypto' in 'C:\Projects\POCs\cli6-test\node_modules\etag'
ERROR in ./node_modules/destroy/index.js
Module not found: Error: Can't resolve 'fs' in 'C:\Projects\POCs\cli6-test\node_modules\destroy'
ERROR in ./node_modules/etag/index.js
Module not found: Error: Can't resolve 'fs' in 'C:\Projects\POCs\cli6-test\node_modules\etag'
ERROR in ./node_modules/express/lib/view.js
Module not found: Error: Can't resolve 'fs' in 'C:\Projects\POCs\cli6-test\node_modules\express\lib'
ERROR in ./node_modules/send/index.js
Module not found: Error: Can't resolve 'fs' in 'C:\Projects\POCs\cli6-test\node_modules\send'
ERROR in ./node_modules/send/node_modules/mime/mime.js
Module not found: Error: Can't resolve 'fs' in 'C:\Projects\POCs\cli6-test\node_modules\send\node_modules\mime'
ERROR in ./node_modules/express/lib/request.js
Module not found: Error: Can't resolve 'http' in 'C:\Projects\POCs\cli6-test\node_modules\express\lib'
ERROR in ./node_modules/express/lib/response.js
Module not found: Error: Can't resolve 'http' in 'C:\Projects\POCs\cli6-test\node_modules\express\lib'
ERROR in ./node_modules/express/lib/application.js
Module not found: Error: Can't resolve 'http' in 'C:\Projects\POCs\cli6-test\node_modules\express\lib'
ERROR in ./node_modules/express/lib/request.js
Module not found: Error: Can't resolve 'net' in 'C:\Projects\POCs\cli6-test\node_modules\express\lib'
ERROR in ./node_modules/content-disposition/index.js
Module not found: Error: Can't resolve 'path' in 'C:\Projects\POCs\cli6-test\node_modules\content-disposition'
ERROR in ./node_modules/express/lib/response.js
Module not found: Error: Can't resolve 'path' in 'C:\Projects\POCs\cli6-test\node_modules\express\lib'
ERROR in ./node_modules/express/lib/view.js
Module not found: Error: Can't resolve 'path' in 'C:\Projects\POCs\cli6-test\node_modules\express\lib'
ERROR in ./node_modules/express/lib/application.js
Module not found: Error: Can't resolve 'path' in 'C:\Projects\POCs\cli6-test\node_modules\express\lib'
ERROR in ./node_modules/mime-types/index.js
Module not found: Error: Can't resolve 'path' in 'C:\Projects\POCs\cli6-test\node_modules\mime-types'
ERROR in ./node_modules/send/index.js
Module not found: Error: Can't resolve 'path' in 'C:\Projects\POCs\cli6-test\node_modules\send'
ERROR in ./node_modules/send/node_modules/mime/mime.js
Module not found: Error: Can't resolve 'path' in 'C:\Projects\POCs\cli6-test\node_modules\send\node_modules\mime'
ERROR in ./node_modules/serve-static/index.js
Module not found: Error: Can't resolve 'path' in 'C:\Projects\POCs\cli6-test\node_modules\serve-static'
ERROR in ./node_modules/destroy/index.js
Module not found: Error: Can't resolve 'stream' in 'C:\Projects\POCs\cli6-test\node_modules\destroy'
ERROR in ./node_modules/iconv-lite/lib/streams.js
Module not found: Error: Can't resolve 'stream' in 'C:\Projects\POCs\cli6-test\node_modules\iconv-lite\lib'
ERROR in ./node_modules/iconv-lite/lib/extend-node.js
Module not found: Error: Can't resolve 'stream' in 'C:\Projects\POCs\cli6-test\node_modules\iconv-lite\lib'
ERROR in ./node_modules/send/index.js
Module not found: Error: Can't resolve 'stream' in 'C:\Projects\POCs\cli6-test\node_modules\send'
ERROR in ./node_modules/body-parser/lib/read.js
Module not found: Error: Can't resolve 'zlib' in 'C:\Projects\POCs\cli6-test\node_modules\body-parser\lib'

这应该在这个新版本中发生，这里是#9827（评论）的原因，这里是@angular/devkit commit diff的变化。

我发现了一些我不太喜欢的解决方法，我最终做了类似（on server.ts）的事情：

app.engine('html', (_, options, callback) => {
  renderModuleFactory(AppServerModuleNgFactory, {
    document: template,
    url: options.req.url,
    extraProviders: [
      provideModuleMap(LAZY_MODULE_MAP),
      { provide: COOKIES_TOKEN, useValue: options.req.cookies }
    ]
  }).then(html => {
    callback(null, html);
  });
});

然后，我COOKIES_TOKEN在服务器平台上使用它，但我不确定推荐的方法是什么。

有人可以指出在服务器平台上从 ExpressJS 请求访问 cookie 的推荐方法是什么？

4

0 回答 0