diff --git a/MDM/Controllers/Process/ProcessOperationController.cs b/MDM/Controllers/Process/ProcessOperationController.cs
index 3486379..73e3115 100644
--- a/MDM/Controllers/Process/ProcessOperationController.cs
+++ b/MDM/Controllers/Process/ProcessOperationController.cs
@@ -201,9 +201,9 @@ namespace MDM.Controllers.Process
 
         // 查询某个工序下的流程
         [HttpGet("get_operation_flow_list")]
-        public IActionResult GetOperationFlowList(string routing_code, string operation_code)
+        public IActionResult GetOperationFlowList(string? routing_code, string? operation_code)
         {
-            var response = _ProcessOperationService.GetOperationFlowList(routing_code, operation_code);
+            var response = _ProcessOperationService.GetOperationFlowList(routing_code??"", operation_code??"");
             return SUCCESS(response);
         }
 
@@ -233,9 +233,9 @@ namespace MDM.Controllers.Process
         /// <param name="parm"></param>
         /// <returns></returns>
         [HttpGet("search_material_errorproof_dict")]
-        public IActionResult SearchMaterialErrorproofDict(string error_proof_rule_code)
+        public IActionResult SearchMaterialErrorproofDict(string? error_proof_rule_code)
         {
-            var response = _ProcessOperationService.SearchMaterialErrorproofDict(error_proof_rule_code);
+            var response = _ProcessOperationService.SearchMaterialErrorproofDict(error_proof_rule_code??"");
             return SUCCESS(response);
         }
 
diff --git a/MDM/Controllers/Process/ProcessRoutingController.cs b/MDM/Controllers/Process/ProcessRoutingController.cs
index d5cb665..f3f4597 100644
--- a/MDM/Controllers/Process/ProcessRoutingController.cs
+++ b/MDM/Controllers/Process/ProcessRoutingController.cs
@@ -48,9 +48,9 @@ namespace MDM.Controllers.Process
 
         //TODO  查询工艺路线绑定工序
         [HttpGet("queryProcess")]
-        public IActionResult QueryProcess(string RoutingCode)
+        public IActionResult QueryProcess(string? RoutingCode)
         {
-            var response = _ProcessRoutingService.QueryProcess(RoutingCode);
+            var response = _ProcessRoutingService.QueryProcess(RoutingCode??"");
             return SUCCESS(response);
         }
 
@@ -124,9 +124,9 @@ namespace MDM.Controllers.Process
         /// <param name="material_info">物料编码或者物料名称</param>
         /// <returns></returns>
         [HttpGet("search_material_info")]
-        public IActionResult SearchMaterialInfo(string material_info)
+        public IActionResult SearchMaterialInfo(string? material_info)
         {
-            var response = _ProcessRoutingService.SearchMaterialInfo(material_info);
+            var response = _ProcessRoutingService.SearchMaterialInfo(material_info??"");
             return SUCCESS(response);
         }