我使用angular-cli生成一个新项目.现在我想将socketJs添加到项目中,但在浏览器控制台中不断出现错误：
原文链接：https://www.f2er.com/angularjs/240434.htmlGET http://localhost:4200/url-parse 404 (Not Found) GET http://localhost:4200/inherits 404 (Not Found) Unhandled Promise rejection: Error: XHR error (404 Not Found) loading http://localhost:4200/url-parse at XMLHttpRequest.wrapFn [as _onreadystatechange] (http://localhost:4200/vendor/zone.js/dist/zone.js:769:30) at ZoneDelegate.invokeTask (http://localhost:4200/vendor/zone.js/dist/zone.js:356:38) at Zone.runTask (http://localhost:4200/vendor/zone.js/dist/zone.js:256:48) at XMLHttpRequest.ZoneTask.invoke (http://localhost:4200/vendor/zone.js/dist/zone.js:423:34) Error loading http://localhost:4200/url-parse as "url-parse" from http://localhost:4200/vendor/sockjs-client/lib/main.js ; Zone: <root> ; Task: Promise.then ; Value: Error: Error: XHR error (404 Not Found) loading http://localhost:4200/url-parse(…) Error: Uncaught (in promise): Error: Error: XHR error (404 Not Found) loading http://localhost:4200/url-parse(…) GET http://localhost:4200/json3 404 (Not Found) GET http://localhost:4200/debug 404 (Not Found) GET http://localhost:4200/events 404 (Not Found) GET http://localhost:4200/eventsource 404 (Not Found) GET http://localhost:4200/crypto 404 (Not Found) GET http://localhost:4200/json3 404 (Not Found) GET http://localhost:4200/url-parse 404 (Not Found) GET http://localhost:4200/debug 404 (Not Found) GET http://localhost:4200/inherits 404 (Not Found) Assertion Failed: loading or loaded GET http://localhost:4200/events 404 (Not Found) Assertion Failed: loading or loaded GET http://localhost:4200/faye-websocket 404 (Not Found) Assertion Failed: loading or loaded GET http://localhost:4200/eventsource 404 (Not Found) Assertion Failed: loading or loaded GET http://localhost:4200/http 404 (Not Found) GET http://localhost:4200/https 404 (Not Found)
这是我的步骤和配置：
typings install sockjs-client --save --ambient
角-CLI-build.js
var Angular2App = require('angular-cli/lib/broccoli/angular2-app');
module.exports = function(defaults) {
return new Angular2App(defaults,{
vendorNpmFiles: [
'systemjs/dist/system-polyfills.js','systemjs/dist/system.src.js','zone.js/dist/**/*.+(js|js.map)','es6-shim/es6-shim.js','reflect-Metadata/**/*.+(ts|js|js.map)','rxjs/**/*.+(js|js.map)','@angular/**/*.+(js|js.map)','sockjs-client/**/*.+(js)'
]
});
};
系统config.ts
/** Map relative paths to URLs. */
const map: any = {
'sockjs-client': 'vendor/sockjs-client/lib/entry.js'
};
/** User packages configuration. */
const packages: any = {
'vendor/sockjs-client/lib': {
'format': 'cjs','defaultExtension': 'js'
}
};
我的自定义服务类：
import { Injectable } from '@angular/core';
import * as SockJS from 'sockjs-client';
import BaseEvent = __SockJSClient.BaseEvent;
import SockJSClass = __SockJSClient.SockJSClass;
@Injectable()
export class WebsocketService {
private sockJs: SockJSClass;
constructor() {
console.log('constuctor');
this.sockJs = new SockJS('/hello');
}
}
请让我知道如何解决它,非常感谢！
但是,我可以通过在system-config.ts中逐个添加它们来包含丢失的lib来消除一些错误.但我怀疑这是正确的做法.
const map: any = {
'sockjs-client': 'vendor/sockjs-client/lib/entry.js','json3': 'vendor/sockjs-client/node_modules/json3/lib/json3.js','url-parse': 'vendor/sockjs-client/node_modules/url-parse/index.js','inherits': 'vendor/sockjs-client/node_modules/inherits/inherits.js','debug': 'vendor/sockjs-client/node_modules/debug/debug.js',...
};
