InversifyJS

Question

我正在尝试使用 InversifyJS 建立一个 NodeJS/TypeScript 项目，但我在开始时遇到了一些麻烦。在过去的几天里，我一直在研究这个问题，但无法弄清楚这个问题。一切都正确构建，但是当我尝试启动节点服务器时，出现以下错误：

TypeError: inversify_1.injectable is not a function

我是运行 NodeJS v6.2.2 (Windows 10 x64) 并安装了 TypeScript 1.8。我试过使用 VS2015 和 gulp 进行构建。下面是我尝试过的一个最小示例，它遇到了同样的错误。我看不出有什么不对，但我一定遗漏了一些明显的东西。（撇开草率的代码，它应该仍然有效。）

server.ts:

/// <reference path="./node_modules/reflect-metadata/reflect-metadata.d.ts" />
/// <reference path="./node_modules/inversify-dts/inversify/inversify.d.ts" />
/// <reference path="./typings/index.d.ts" />

import "reflect-metadata"
import { Application } from "./app/app"
import { ITest, TestClass } from "./app/testclass"
import { Kernel, injectable, inject } from "inversify"

var kernel = new Kernel();
kernel.bind<ITest>("ITest").to(TestClass);
kernel.bind<Application>(Application).to(Application);

var app = kernel.get<Application>(Application);
app.initialize();

app/app.ts

/// <reference path="../node_modules/inversify-dts/inversify/inversify.d.ts" />
/// <reference path="../typings/index.d.ts" />

import * as Hapi from "hapi";
import { inject, injectable } from "inversify"
import { ITest } from "../app/testclass"

@injectable()
export class Application {
    private testClass: ITest;

    constructor( @inject("ITest") test: ITest) {
        this.testClass = test;
    };

    initialize() {
        var server = new Hapi.Server({
            connections: {
                router: {
                    isCaseSensitive: false,
                    stripTrailingSlash: true
                }
            }
        });

        server.connection({
            port: '3000',
            host: 'localhost'
        });

        server.route({
            method: 'GET',
            path: '/',
            handler: (request: Hapi.Request, reply: Hapi.IReply) => {
                var str = this.testClass.test();
                reply(str);
            }
        });

        server.start(function () {
            console.log('Server running at:', server.info.uri);
        });
    }
}

app/testclass.ts

/// <reference path="../node_modules/inversify-dts/inversify/inversify.d.ts" />

import { injectable } from "inversify"

export interface ITest {
    test(): string;
}

@injectable()
export class TestClass implements ITest {
    test(): string {
        return "testing";
    }
}

tsconfig.json

{
    "files": [
        "server.ts",
        "app/app.ts",
        "app/testclass.ts"
    ],
    "compilerOptions": {
        "module": "commonjs",
        "noImplicitAny": true,
        "target": "es6",
        "experimentalDecorators": true,
        "emitDecoratorMetadata": true,
        "outDir": "../release/"
    }
}

节点的完整错误输出：

C:\Projects\inversifytest\release\app\app.js:50
    inversify_1.injectable(),
                ^

TypeError: inversify_1.injectable is not a function
    at Object.<anonymous> (C:\Projects\inversifytest\release\app\app.js:50:17)
    at Module._compile (module.js:541:32)
    at Object.Module._extensions..js (module.js:550:10)
    at Module.load (module.js:458:32)
    at tryModuleLoad (module.js:417:12)
    at Function.Module._load (module.js:409:3)
    at Module.require (module.js:468:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (C:\Projects\inversifytest\release\server.js:6:15)
    at Module._compile (module.js:541:32)

Answer 1

我想通了 - 正如我所怀疑的那样，这是一个愚蠢的错误。我安装了错误版本的 InversifyJS。装饰器仅适用于新版本 2.x 并且 npm 已安装 1.3.1（因为我没有明确指定版本）。

InversifyJS - 可注入不是函数

InversifyJS - injectable is not a function

node.js