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nestjs目录命名导致的循环引用

article 2024/11/16 21:37:32

具体报错如下：

[Nest] 2024  - 2024/09/02 22:57:02   ERROR [ExceptionHandler] A circular dependency has been detected inside ApplicationModule. Please, make sure that each side of a bidirectional relationships are decorated with "forwardRef()". Note that circular relationships between custom providers (e.g., factories) are not supported since functions cannot be called more than once.
Error: A circular dependency has been detected inside ApplicationModule. Please, make sure that each side of a bidirectional relationships are decorated with "forwardRef()". Note that circular relationships between custom providers (e.g., factories) are not supported since functions cannot be called more than once.

复现方式：尽管U8AppService全是空方法仍然会出现循环引用的报错

import { App } from "@/entities/app.entity";
import { TypeOrmModule } from "@hg/born-typeorm";
import { Module, Injectable } from "@hg/born/common";
import { ApplicationController } from "./controller";
import { U8AppService } from "./Service";

@Module({
    imports: [TypeOrmModule.forFeature([App])],
    controllers: [ApplicationController],
    providers: [U8AppService],
    exports: [U8AppService],
})
export class ApplicationModule { }

修改方法：将目录名从Service改为base就正常了


import { App } from "@/entities/app.entity";
import { TypeOrmModule } from "@hg/born-typeorm";
import { Module, Injectable } from "@hg/born/common";
import { ApplicationController } from "./controller";
import { U8AppService } from "./base";

@Module({
    imports: [TypeOrmModule.forFeature([App])],
    controllers: [ApplicationController],
    providers: [U8AppService],
    exports: [U8AppService],
})
export class ApplicationModule { }