前端和后端源码，合并到一个git仓库中，方便用户下载，避免前后端不匹配的问题

jeecgboot-vue3/tests/server/index.ts

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+import Koa from 'koa';
+import path from 'path';
+import Router from 'koa-router';
+import body from 'koa-body';
+import cors from 'koa2-cors';
+import koaStatic from 'koa-static';
+import websockify from 'koa-websocket';
+import route from 'koa-route';
+
+import AppRoutes from './routes';
+
+const PORT = 3300;
+
+const app = websockify(new Koa());
+
+app.ws.use(function (ctx, next) {
+  ctx.websocket.send('connection succeeded!');
+  return next(ctx);
+});
+
+app.ws.use(
+  route.all('/test', function (ctx) {
+    // ctx.websocket.send('Hello World');
+    ctx.websocket.on('message', function (message) {
+      // do something with the message from client
+
+      if (message !== 'ping') {
+        const data = JSON.stringify({
+          id: Math.ceil(Math.random() * 1000),
+          time: new Date().getTime(),
+          res: `${message}`,
+        });
+        ctx.websocket.send(data);
+      }
+      console.log(message);
+    });
+  })
+);
+
+const router = new Router();
+
+// router
+AppRoutes.forEach((route) => router[route.method](route.path, route.action));
+
+app.use(cors());
+app.use(
+  body({
+    encoding: 'gzip',
+    multipart: true,
+    formidable: {
+      // uploadDir: path.join(__dirname, '/upload/'), // 设置文件上传目录
+      keepExtensions: true,
+      maxFieldsSize: 20 * 1024 * 1024,
+    },
+  })
+);
+app.use(router.routes());
+app.use(router.allowedMethods());
+app.use(koaStatic(path.join(__dirname)));
+
+app.listen(PORT, () => {
+  console.log(`Application started successfully: http://localhost:${PORT}`);
+});