Pr@dev v2@fixds (#15336)

* fix：修复 ftp 中文名称的文件加载失败

* fix：修复创建数据源-远程excel/CSV-填写信息正确-点击校验提示校验成功但报错

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Co-authored-by: taojinlong <jinlong@fit2cloud.com>

core/core-frontend/src/views/visualized/data/datasource/form/index.vue

@@ -402,7 +402,16 @@ const doValidateDs = request => {
     excelRequest.userName = Base64.encode(request.userName)
     excelRequest.passwd = Base64.encode(request.passwd)
     return loadRemoteFile(excelRequest)
-      .then(() => {
+      .then(res => {
+        dsLoading.value = false
+        if (!res) {
+          ElMessage.warning(res.msg)
+          return
+        }
+        if (res?.code !== 0) {
+          ElMessage.warning(res.msg)
+          return
+        }
         ElMessage.success(t('datasource.validate_success'))
         dsLoading.value = false
       })