修改了一下问题

WeiCloud.Fusion/ThirdPartyServices/ThirdPartyServices.DomainService/ShenZhouShengAn/SunPalaceBoardSafetyService.cs

@@ -98,7 +98,7 @@ namespace ThirdPartyServices.DomainService.ShenZhouShengAn
                 }
 
                 //获取单位信息
-                HttpClientResult<BranchResDto> branchs = await _tokenProviderService.GetBranchPermissions(token, loginUsers.Data.Uid);
+                HttpClientResult<BranchResDto> branchs = await _tokenProviderService.GetBranchPermissions(token, loginUsers.Data.Ubpid);
                 if (branchs.Code == "Error" || branchs.Data == null || branchs.Data.BranchPermissionIds == null || branchs.Data.BranchPermissionIds.Length == 0)
                 {
                     _logger.LogWarning("GetProductionRiskEchart接口获取单位信息失败");

WeiCloud.Fusion/ThirdPartyServices/ThirdPartyServices.DomainService/ShenZhouShengAn/ThirdPartyProviderService.cs

@@ -1,4 +1,5 @@
 using Microsoft.Extensions.Logging;
+using Org.BouncyCastle.Ocsp;
 using System.Net.Http.Headers;
 using System.Net.Http.Json;
 using System.Text.Json;
@@ -89,13 +90,28 @@ namespace ThirdPartyServices.DomainService.ShenZhouShengAn
         {
             HttpClientResult<BranchResDto> result = new HttpClientResult<BranchResDto>() { Code = "Success", Message = "请求成功" };
 
-            result = await SendAndParseAsync<int, HttpClientResult<BranchResDto>>(
-       "https://zrh.szdunan.cn/v1/api/branch/index_no_check_branch",
-       token,
-       ubpid,
-       HttpMethod.Post);
+            try
+            {
+                // 构造表单参数（key必须是"ubpid"，和Postman一致）
+                var formData = new Dictionary<string, string>
+        {
+            { "ubpid", ubpid.ToString() } // 转换为字符串，匹配表单提交格式
+        };
 
-            return result;
+                // 调用表单提交方法，而非JSON提交
+                result = await SendFormAndParseAsync<HttpClientResult<BranchResDto>>(
+                   "https://zrh.szdunan.cn/v1/api/branch/index_no_check_branch",
+                   token,
+                   formData,
+                   HttpMethod.Post);
+
+                return result;
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "获取分支权限失败");
+                return new HttpClientResult<BranchResDto> { Code = "Error", Message = $"请求异常：{ex.Message}" };
+            }
         }
 
         /// <summary>
@@ -110,10 +126,7 @@ namespace ThirdPartyServices.DomainService.ShenZhouShengAn
         public async Task<string> SendJsonAsync<TRequest>(string url, string? token, TRequest? payload, HttpMethod method)
         {
             using var request = new HttpRequestMessage(method, url);
-            if (!string.IsNullOrWhiteSpace(token))
-            {
-                request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", token);
-            }
+            request.Headers.TryAddWithoutValidation("Authorization", "Bearer " + token);
             // 写入 JSON 请求体（POST、PUT、PATCH 等适用）
             if (payload != null && method != HttpMethod.Get)
             {
@@ -166,5 +179,50 @@ namespace ThirdPartyServices.DomainService.ShenZhouShengAn
         {
             return SendAndParseAsync<object, TResponse>(url, token, null, method);
         }
+
+        /// <summary>
+        /// 发送表单格式请求（适配 multipart/form-data）
+        /// </summary>
+        public async Task<string> SendFormDataAsync(string url, string? token, Dictionary<string, string> formData, HttpMethod method)
+        {
+            using var request = new HttpRequestMessage(method, url);
+            request.Headers.TryAddWithoutValidation("Authorization", "Bearer " + token);
+            request.Headers.TryAddWithoutValidation("Accept", "*/*");
+
+            // 构造 multipart/form-data 表单数据
+            var formContent = new MultipartFormDataContent();
+            foreach (var item in formData)
+            {
+                // 添加表单参数（key=ubpid, value=31）
+                formContent.Add(new StringContent(item.Value), item.Key);
+            }
+            request.Content = formContent;
+
+            var response = await _httpClient.SendAsync(request);
+
+            if (!response.IsSuccessStatusCode)
+            {
+                var error = await response.Content.ReadAsStringAsync();
+                throw new Exception($"请求失败：{response.StatusCode}, 内容：{error}");
+            }
+
+            return await response.Content.ReadAsStringAsync();
+        }
+
+        /// <summary>
+        /// 表单请求 + 解析结果（适配 BranchResDto）
+        /// </summary>
+        public async Task<TResponse> SendFormAndParseAsync<TResponse>(
+            string url,
+            string? token,
+            Dictionary<string, string> formData,
+            HttpMethod method)
+        {
+            var responseContent = await SendFormDataAsync(url, token, formData, method);
+            return JsonSerializer.Deserialize<TResponse>(responseContent, new JsonSerializerOptions
+            {
+                PropertyNameCaseInsensitive = true // 忽略大小写匹配（避免字段名大小写问题）
+            }) ?? throw new Exception("反序列化返回结果失败");
+        }
     }
 }