websocket逻辑优化

src/App.vue

@@ -1,6 +1,6 @@
 <script setup>
 import { watch } from "vue";
-import { onShow } from "@dcloudio/uni-app";
+import { onShow, onHide } from "@dcloudio/uni-app";
 import websocket from "@/websocket";
 import useStore from "@/store";
 import { storeToRefs } from "pinia";
@@ -30,18 +30,16 @@ watch(
 onShow(() => {
   const token = uni.getStorageSync("token");
   if (user.value.id && token) {
-    // 检查 WebSocket 连接状态
-    uni.sendSocketMessage({
-      data: JSON.stringify({ event: "ping", data: {} }),
-      fail: () => {
-        // 如果发送失败，说明连接已断开，需要重新连接
-        websocket.createWebSocket(token, (content) => {
-          uni.$emit("socket-inbox", content);
-        });
-      },
+    console.log("回到前台，重新连接 websocket");
+    websocket.createWebSocket(token, (content) => {
+      uni.$emit("socket-inbox", content);
     });
   }
 });
+
+onHide(() => {
+  websocket.closeWebSocket();
+});
 </script>
 
 <style>

src/util.js

@@ -13,6 +13,7 @@ export const checkConnection = () => {
   uni.sendSocketMessage({
     data: JSON.stringify({ event: "ping", data: {} }),
     fail: () => {
+      websocket.closeWebSocket();
       const token = uni.getStorageSync("token");
       if (!token) return;
       // 如果发送失败，说明连接已断开，需要重新连接

src/websocket.js

@@ -1,16 +1,8 @@
 import { MESSAGETYPES } from "@/constants";
 let socket = null;
 let heartbeatInterval = null;
-let reconnectCount = 0;
 let reconnectTimer = null;
 
-// 重连配置
-const RECONNECT_CONFIG = {
-  MAX_COUNT: 999, // 最大重连次数
-  INITIAL_DELAY: 2000, // 初始重连延迟（2秒）
-  MAX_DELAY: 5000, // 最大重连延迟（5秒）
-};
-
 /**
  * 建立 WebSocket 连接
  */
@@ -20,9 +12,8 @@ function createWebSocket(token, onMessage) {
     url,
     success: () => {
       console.log("websocket 连接成功");
-      reconnectCount = 0; // 重置重连次数
       // 启动心跳
-      startHeartbeat();
+      startHeartbeat(onMessage);
     },
     fail: () => {
       reconnect(onMessage);
@@ -32,6 +23,7 @@ function createWebSocket(token, onMessage) {
   // 接收消息
   uni.onSocketMessage((res) => {
     const data = JSON.parse(res.data);
+    // console.log(res);
     if (data.event === "pong" || !data.data.updates) return;
     if (onMessage) onMessage(data.data.updates);
     const msg = data.data.updates[0];
@@ -66,7 +58,7 @@ function createWebSocket(token, onMessage) {
   // 错误处理
   uni.onSocketError((err) => {
     console.error("WebSocket 错误", err);
-    reconnect(token, onMessage);
+    reconnect(onMessage);
   });
 
   uni.onSocketClose((result) => {
@@ -80,48 +72,58 @@ function createWebSocket(token, onMessage) {
  * 重连机制
  */
 function reconnect(onMessage) {
-  if (reconnectCount >= RECONNECT_CONFIG.MAX_COUNT) return;
-
   reconnectTimer && clearTimeout(reconnectTimer);
+  closeWebSocket(); // 确保关闭旧连接
 
   const token = uni.getStorageSync("token");
   if (!token) return;
-  // 计算重连延迟（指数退避）
-  const delay = Math.min(
-    RECONNECT_CONFIG.INITIAL_DELAY * Math.pow(2, reconnectCount),
-    RECONNECT_CONFIG.MAX_DELAY
-  );
+
   reconnectTimer = setTimeout(() => {
     console.log("reconnecting...");
     createWebSocket(token, onMessage);
-    reconnectCount++;
-  }, delay);
+  }, 1000);
 }
 
 function closeWebSocket() {
   if (socket) {
-    // 清理重连定时器
-    reconnectCount = 0;
     reconnectTimer && clearTimeout(reconnectTimer);
     stopHeartbeat();
-    socket.close();
+
+    try {
+      socket.close();
+    } catch (err) {
+      console.error("关闭WebSocket连接失败", err);
+    }
+
+    socket = null; // 清除socket引用
   }
 }
 
+function sendHeartbeat(onMessage) {
+  uni.sendSocketMessage({
+    data: JSON.stringify({ event: "ping", data: {} }),
+    success: () => {
+      // console.log("发送心跳成功");
+    },
+    fail: (err) => {
+      console.error("发送心跳失败", err);
+      stopHeartbeat();
+      closeWebSocket(); // 关闭失效的连接
+      reconnect(onMessage); // 触发重连
+    },
+  });
+}
+
 /**
  * 启动心跳
  */
-function startHeartbeat() {
+function startHeartbeat(onMessage) {
   stopHeartbeat(); // 防止重复启动
 
   heartbeatInterval = setInterval(() => {
-    if (socket) {
-      uni.sendSocketMessage({
-        data: JSON.stringify({ event: "ping", data: {} }),
-        fail: (err) => {
-          console.error("发送心跳失败", err);
-        },
-      });
+    if (socket && socket.readyState === 1) {
+      // 检查连接状态
+      sendHeartbeat(onMessage);
     }
   }, 10000);
 }