create-chuntianxiaozhu/template-nestjs-mysql/api/middlewares/cors.middleware.ts

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import { Injectable, NestMiddleware } from '@nestjs/common';

@Injectable()
export class CorsMiddleware implements NestMiddleware {
  use(req: any, res: any, next: () => void) {
    // 在这里配置跨域相关的逻辑
    const allowedOrigins = ['http://ctxzl.gitee.io', 'https://ctxzl.gitee.io']; // 允许的源
    const requestOrigin = req.header('Origin');

    if (allowedOrigins.includes(requestOrigin)) {
      res.setHeader('Access-Control-Allow-Origin', requestOrigin);
      res.setHeader('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE');
      res.setHeader('Access-Control-Allow-Headers', 'Content-Type');
    }

    next();
  }
}