diff --git a/mdp-form/src/main/java/com/mdp/form/ctrl/FormDataController.java b/mdp-form/src/main/java/com/mdp/form/ctrl/FormDataController.java
index d745d74..caaf226 100644
--- a/mdp-form/src/main/java/com/mdp/form/ctrl/FormDataController.java
+++ b/mdp-form/src/main/java/com/mdp/form/ctrl/FormDataController.java
@@ -180,7 +180,7 @@ public class FormDataController {
 			}
 		}
 		String bizKey=formDataService.createBizKey(formFields,formData);
-		if(formDataService.count(QueryTools.initQueryWrapper(FormData.class).eq("biz_key",bizKey).eq("form_id",formData.getFormId()))>0){
+		if(ObjectTools.isNotEmpty(bizKey) && formDataService.count(QueryTools.initQueryWrapper(FormData.class).eq("biz_key",bizKey).eq("form_id",formData.getFormId()))>0){
 			return Result.error("biz-key-exists","%s已存在",bizKey);
 		};
 		formData.setBizKey(bizKey);
@@ -243,7 +243,7 @@ public class FormDataController {
 
 		String bizKey= formDataService.createBizKey(formFields,formData);
 		formData.setBizKey(bizKey);
-		if(!bizKey.equals(formDataDb.getBizKey())){
+		if(ObjectTools.isNotEmpty(bizKey) && !bizKey.equals(formDataDb.getBizKey())){
 			if(formDataService.count(QueryTools.initQueryWrapper(FormData.class).eq("biz_key",bizKey).eq("form_id",formData.getFormId()))>0){
 				return Result.error("biz-key-exists","%s已存在",bizKey);
 			};
diff --git a/mdp-form/src/main/java/com/mdp/form/service/FormDataService.java b/mdp-form/src/main/java/com/mdp/form/service/FormDataService.java
index fe102de..d51b217 100644
--- a/mdp-form/src/main/java/com/mdp/form/service/FormDataService.java
+++ b/mdp-form/src/main/java/com/mdp/form/service/FormDataService.java
@@ -81,8 +81,8 @@ public class FormDataService extends BaseService<FormDataMapper,FormData> {
 
 		List<String> pks=new ArrayList<>();
 		List<FormField> pkFields=formFields.stream().filter(k->k.getIsBizKey().endsWith("1")).collect(Collectors.toList());
-		if(pkFields==null || pkFields.size()==0){
-			throw new BizException("pkfields-0","表单主键不存在，请设置表单主键");
+		if(pkFields==null || pkFields.size()==0){//没有业务主键，则取id
+			return "";
 		}
 		Map<String,Object> formDataMap= BaseUtils.toMap(formData);
 		FormField pk=pkFields.get(0);