Create backend server

source/Service/Runner.ts

@@ -0,0 +1,8 @@
+import { Service } from "@Service/Service";
+import * as minimist from "minimist";
+
+const args = minimist(process.argv.slice(2));
+
+if (args.run) {
+	new Service().run(args.path, args.port);
+}

source/Service/Service.ts

@@ -0,0 +1,47 @@
+import { Express } from "express";
+import * as express from "express";
+import * as detect from "detect-port";
+
+class Service {
+
+	/**
+	 * 默认端口
+	 */
+	public servicePort: number = 12100;
+
+	/**
+	 * Express 实例
+	 */
+	public app!: Express;
+
+	/**
+	 * 获取空闲接口
+	 */
+	private async getFreePort(): Promise<number> {
+
+		let freePort: number = this.servicePort;
+		
+		try {
+			freePort = await detect(this.servicePort);
+		} catch (err) {
+			console.log(err);
+		}
+
+		return freePort;
+	}
+
+	public async run(url?: string, port?: number) {
+
+		this.servicePort = port ?? await this.getFreePort();
+
+		this.app = express();
+
+		this.app.use("/", express.static(url ?? "./"));
+
+		this.app.listen(this.servicePort);
+
+		console.log("Service: service run in port " + this.servicePort);
+	}
+}
+
+export { Service };