修改前端

Yi.Vue/src/util/signalR.js

@@ -0,0 +1,34 @@
+//引入安装的signalr包
+import * as signalR from '@microsoft/signalr'
+
+const signal = new signalR.HubConnectionBuilder()　　　 //服务器地址
+    .withUrl([process.env.VUE_APP_BASE_API] + '/chat', {})
+    .build()
+
+/* const signalr = function () {
+  var hub
+  if (hub === undefined) {
+    hub = signal
+  }
+  return hub
+} */
+//  自动重连
+// async function start() {
+//     try {
+//         await signal.start()
+//         console.log('connected')
+//     } catch (err) {
+//         console.log(err)
+//         setTimeout(() => start(), 5000)
+//     }
+// }
+
+// signal.onclose(async() => {
+//         await start()
+//     })
+//     //将创建的signal赋值给Vue实例
+export default {
+    install: function(Vue) {
+        Vue.prototype.signalr = signal
+    }
+}