我尝试使用typescript设置一个restify项目。 经过各种尝试后,我能够使用"模块创建一个工作版本:commonjs"在tsconfig.json
中我更喜欢使用系统 - 但我无法使用systemjs进行设置
boot.ts
import {AppServer} from './app';
var _appServer = new AppServer();
tsconfig.json
{
"compilerOptions": {
"target": "ES5",
"module": "commonjs",
"moduleResolution": "node",
"sourceMap": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"removeComments": false,
"noImplicitAny": false
},
"exclude": [
"node_modules"
]
}
app.ts
/// <reference path="typings/restify/restify.d.ts" />
import {Server, Response, Request, createServer} from 'restify';
export class AppServer {
private server: Server;
constructor() {
this.init();
}
init() {
this.server = createServer();
this.server.get('/hello/:name', this.respond);
this.server.listen(8080, () => {
console.log('%s listening at %s', this.server.name, this.server.url);
});
}
respond(req: Request, res: Response, next: Function) {
res.send('hello ' + req.params.name);
next();
}
}
使用
"module": "system"
在tsconfig.json中,我得到以下输出(即使在boot.ts中使用import System = require('systemjs')
):
➜ server git:(master) ✗ npm run server
> server@1.0.0 server /Users/maquh/Development/02_Backgular/server
> node boot.js
/Users/maquh/Development/02_Backgular/server/boot.js:1
(function (exports, require, module, __filename, __dirname) { System.register(['./app'], function(exports_1) {
^
ReferenceError: System is not defined
at Object.<anonymous> (/Users/maquh/Development/02_Backgular/server/boot.js:1:63)
at Module._compile (module.js:425:26)
at Object.Module._extensions..js (module.js:432:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:313:12)
at Function.Module.runMain (module.js:457:10)
at startup (node.js:138:18)
at node.js:974:3
透明的boot.js
System.register(['./app'], function(exports_1) {
var app_1;
var _appServer;
return {
setters:[
function (app_1_1) {
app_1 = app_1_1;
}],
execute: function() {
//System.import('./app.ts').
_appServer = new app_1.AppServer();
}
}
});
//# sourceMappingURL=boot.js.map
更新: 我还尝试了另一种 boot.ts
的替代版本var System = require('systemjs');
System.transpiler = 'ts';
System.import('./app.js').then(function(m) {
console.log(m);
}, function(err) {
console.error(err);
});
导致以下错误:
[Error: ENOENT: no such file or directory, open '/Users/markusbellgardt/Development/02_Backgular/server/restify']
答案 0 :(得分:2)
系统使用ES6模块加载器,其中nodejs(据我所知)目前不支持,您的初始用例正好在输出到select *,
dbo.DictanceKM(cast(u.latitude as float),
@lat,
cast(u.longitude as float),@long) as distance
from Table u
where distance < 10
的位置。如果要在节点内使用ES6样式模块分辨率,则需要告知节点如何加载它,例如:
https://www.npmjs.com/package/es6-module-loader
我在节点中使用typescript,但我使用commonjs
,我之前在浏览器中使用过commonjs
,当你有可用的ES6模块加载器(例如SystemJs(JSPM))时它可以正常工作。