[英]Running Angular2 app with Node Js server
我正在使用Angular2(客戶端)和Node JS(服務器端)技術開始一個新項目。
我已經設法使用node
和express
創建RESTful API。 輸入特定URL時,將顯示匹配的Json響應。 到現在為止還挺好。
現在我正在嘗試將Angular 2集成到這個過程中。 我已經創建了app.component。 顯示頁面時, 組件未加載 ,我得到了一些404代碼:
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
這是我的項目結構:
├── 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"
}
}
我的index.ts(服務器):
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);
總結一下,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>
加載http:// localhost:3000 /時 ,我看到“Index.html Loading ...”,但不顯示該組件。
在Angular2官方網站上,他們使用lite-server
依賴。 我想我的服務器有問題,但我無法弄清楚如何使它工作。 或者有沒有辦法使用Express
和lite-server
實現RESTful API?
你忘了添加一個中間件函數來提供像js libs和css這樣的靜態文件。 在app.get("/", ...)
之前添加此行應該有效:
app.use(express.static(__projectRoot));
安裝路徑包后npm i path --save
在頂部使用它
var path = require('path');然后使用它
app.use(express.static(path.join(__dirname, 'your-dir-name')));
app.use(express.static(path.join(__ dirname,'your-dir-name')));
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