无法在位置#0注入depency，因为TypeInfo未知

Question

我遇到了这个问题：

[ERROR] 14:07:18 Error: Cannot inject the dependency at position #0 of "ListInterviewPagesUseCase" constructor. Reason: TypeInfo not known for "InterviewPagesRepository"

容器

import { container } from "tsyringe";
import { InterviewPagesRepository } from "../../modules/interview/repositories/implementations/InterviewPagesRepository";
import "./providers";
container.registerSingleton(
"InterviewPagesRepository",
InterviewPagesRepository
);

控制器

import { Request, Response } from "express";
import { container } from "tsyringe";
import { ListInterviewPagesUseCase } from "./ListInterviewPagesUseCase";
class ListInterviewPagesController {
async handle(request: Request, response: Response): Promise<Response> {
const listInterviewPagesUseCase = container.resolve(
ListInterviewPagesUseCase
);
const interviewPages = await listInterviewPagesUseCase.execute();
return response.json(interviewPages);
}
}
export { ListInterviewPagesController };

用例

import { inject, injectable } from "tsyringe";
import { InterviewPage } from "../../entities/InterviewPage";
import { IInterviewPagesRepository } from "../../repositories/IInterviewPagesRepository";
@injectable()
class ListInterviewPagesUseCase {
constructor(
@inject("InterviewPagesRepository")
private interviewPagesRepository: IInterviewPagesRepository
) {}
async execute(): Promise<InterviewPage[]> {
const interviewPages = await this.interviewPagesRepository.all();
return interviewPages;
}
}
export { ListInterviewPagesUseCase };

它在windows上正常工作，但现在我换成了mac并停止了工作。我已经从tsrynge中放入了delay，但仍然不起作用。

当我调用一个使用此存储库的路由时，就会发生这种情况，但看起来不错，数据库已经创建。

我的导入应用程序文件：

import "reflect-metadata";
import "dotenv/config";
import "./database";
import "./shared/container";
import cors from "cors";
import express from "express";
import swaggerUi from "swagger-ui-express";
import { router } from "./routes";
import swaggerFile from "./swagger.json";

Answer 1

考虑用@singleton装饰InterviewPagesRepository，而不是自己调用container.registerSingleton：

import { singleton } from "tsyringe";
@singleton()
class InterviewPagesRepository {

@singleton装饰器确实像您一样在内部调用registerSingleton()，但它也存储它以用于其他构造函数的参数(请参见1→2，然后是3→4.→5( 。