修改代码兼容低版本

7 months ago · ad57243c3a
parent cc492003b3
commit ad57243c3a
2 changed files with 30 additions and 7 deletions
--- a/public/index.html
+++ b/public/index.html
@ -1,15 +1,27 @@
 <!DOCTYPE html>
 <html lang="">
  <head>
-    <meta charset="utf-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width,initial-scale=1.0">
-    <link rel="icon" href="<%= BASE_URL %>favicon.ico">
+    <meta charset="utf-8" />
+    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
+    <meta name="viewport" content="width=device-width,initial-scale=1.0" />
+
+    <meta http-equiv="pragma" content="no-cache" />
+    <meta
+      http-equiv="cache-control"
+      content="no-cache, no-store, must-revalidate"
+    />
+    <meta http-equiv="expires" content="0" />
+
+    <link rel="icon" href="<%= BASE_URL %>favicon.ico" />
    <title><%= htmlWebpackPlugin.options.title %></title>
  </head>
  <body>
    <noscript>
-      <strong>We're sorry but <%= htmlWebpackPlugin.options.title %> doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
+      <strong
+        >We're sorry but <%= htmlWebpackPlugin.options.title %> doesn't work
+        properly without JavaScript enabled. Please enable it to
+        continue.</strong
+      >
    </noscript>
    <div id="app"></div>
    <!-- built files will be auto injected -->
--- a/src/views/realTimeData/index.vue
+++ b/src/views/realTimeData/index.vue
@ -283,7 +283,14 @@ export default {
            this.deviceTitle = JSON.parse(deviceInfoVal);
          } else {
            // 否则，使用 res.data[0].id
-            this.deviceTypeVal = res.data[0]?.id; // 使用可选链操作符避免 res.data[0] 为 undefined 的情况
+            //this.deviceTypeVal = res.data[0]?.id; // 使用可选链操作符避免 res.data[0] 为 undefined 的情况 低版本不认识
+            this.deviceTypeVal =
+              res.data &&
+              Array.isArray(res.data) &&
+              res.data.length > 0 &&
+              res.data[0] !== null
+                ? res.data[0].id
+                : undefined;
            this.deviceTitle = res.data[0].mc;
            // 同时，将新获取的 areaVal 存储到 localStorage 中
            localStorage.setItem(
@ -368,7 +375,11 @@ export default {
            this.areaVal = JSON.parse(storedAreaVal);
          } else {
            // 否则，使用 res.data[0].id
-            this.areaVal = res.data[0]?.id; // 使用可选链操作符避免 res.data[0] 为 undefined 的情况
+
+            this.areaVal =
+              res.data && res.data.length > 0 && res.data[0] !== null
+                ? res.data[0].id
+                : undefined;

            // 同时，将新获取的 areaVal 存储到 localStorage 中
            localStorage.setItem("areaVal", JSON.stringify(this.areaVal));