增加请求发生异常的判断

Author: king

web/src/utils/request.js

@@ -84,6 +84,20 @@ service.interceptors.response.use(
   },
   error => {
     closeLoading()
+
+    if(!error.response){
+      ElMessageBox.confirm(`
+        <p>检测到请求错误</p>
+        <p>${error}</p>
+        `, '请求报错', {
+          dangerouslyUseHTMLString: true,
+          distinguishCancelAndClose: true,
+          confirmButtonText: '稍后重试',
+          cancelButtonText: '取消'
+        })
+        return
+    }
+
     switch (error.response.status) {
       case 500:
         ElMessageBox.confirm(`