【发布时间】：2016-10-12 22:28:13
【问题描述】：
我正在使用 Angular2（客户端）和 Node JS（服务器端）技术开始一个新项目。
我已经设法使用node 和express 创建了一个RESTful API。输入特定 URL 后，将显示匹配的 Json 响应。到目前为止一切顺利。
现在我正在尝试将 Angular 2 集成到该过程中。我已经创建了 app.component。当页面显示时，组件未加载，我得到了一些 404 代码：
Failed to load resource: 404 (not found) http://localhost:3000/node_modules/core-js/client/shim.min.js
...
Failed to load resource: 404 (not found) http://localhost:3000/systemjs.config.js
这是我的项目结构：
├── App
| └── app.component.ts //copied from Angular2/get-started
| └── main.ts // copied from Angular2/get-started
├── dist //contains generated JS files
├── node_modules
├── server // contains Server Typescript files
├── index.html // copied from Angular2/get-started
├── index.ts // server entry point
├── package.json
├── systemjs.config.js
├── tsconfig.json
├── typings.json
我的 package.json：
{
"main": "index.js",
"scripts": {
"start": "tsc && concurrently \"npm run tsc:w\" \"node dist/js/index.js\" ",
"postinstall": "typings install",
"tsc": "tsc",
"tsc:w": "tsc -w",
"typings": "typings"
},
"dependencies": {
"@angular/common": "2.0.0-rc.1",
"@angular/compiler": "2.0.0-rc.1",
"@angular/core": "2.0.0-rc.1",
"@angular/http": "2.0.0-rc.1",
"@angular/platform-browser": "2.0.0-rc.1",
"@angular/platform-browser-dynamic": "2.0.0-rc.1",
"@angular/router": "2.0.0-rc.1",
"@angular/router-deprecated": "2.0.0-rc.1",
"@angular/upgrade": "2.0.0-rc.1",
"systemjs": "0.19.27",
"core-js": "^2.4.0",
"reflect-metadata": "^0.1.3",
"rxjs": "5.0.0-beta.6",
"zone.js": "^0.6.12",
"angular2-in-memory-web-api": "0.0.11",
"bootstrap": "^3.3.6",
"express": "^4.13.4",
"mysql": "^2.5.4"
},
"devDependencies": {
"concurrently": "^2.0.0",
"typescript": "^1.8.10",
"typings": "^1.0.4"
}
}
还有我的 index.ts（服务器）：
var express = require('express');
var app = express();
var path = require('path');
var __projectRoot = __dirname + '/../../';
app.get('/', function (req, res) {
res.sendFile(path.join(__projectRoot + '/index.html'));
});
console.log('Server up and running on http://localhost:3000/');
app.listen(server_port);
总之，index.html：
<html>
<head>
<script>document.write('<base href="' + document.location + '" />');</script>
<title>Angular 2 QuickStart</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 1. Load libraries -->
<!-- Polyfill(s) for older browsers -->
<script src="node_modules/core-js/client/shim.min.js"></script>
<script src="node_modules/zone.js/dist/zone.js"></script>
<script src="node_modules/reflect-metadata/Reflect.js"></script>
<script src="node_modules/systemjs/dist/system.src.js"></script>
<!-- 2. Configure SystemJS -->
<script src="systemjs.config.js"></script>
<script>
System.import('app').catch(function (err) {
console.error(err);
});
</script>
</head>
<!-- 3. Display the application -->
<body>
<h1>index.html</h1>
<my-app>Loading...</my-app>
</body>
</html>
加载http://localhost:3000/ 时，我看到“Index.html 正在加载...”，但该组件未显示。
在 Angular2 官方网站上，他们使用 lite-server 依赖项。我猜我的服务器有问题，但我不知道如何让它工作。或者有没有办法使用Express和lite-server实现RESTful API？
【问题讨论】：
标签： javascript node.js angular express