update

mec-biz/src/main/java/com/ym/mec/biz/service/impl/ContractServiceImpl.java

@@ -980,7 +980,7 @@ public class ContractServiceImpl implements ContractService, InitializingBean {
 
 		params.put("isShowVisualSeal", false);
 
-		if(Objects.nonNull(musicGroupId)){
+		if(StringUtils.isBlank(musicGroupId)){
 			params.put("ownershipType", OwnershipType.OWN);
 		}else{
 			MusicGroup musicGroup = musicGroupService.get(musicGroupId);
@@ -1054,7 +1054,7 @@ public class ContractServiceImpl implements ContractService, InitializingBean {
 		StudentInfo studentInfo = studentRegistrationService.queryStudentInfo(userId);
 		params.put("studentInfo", studentInfo);
 		params.put("isShowVisualSeal", true);
-		if(Objects.nonNull(musicGroupId)){
+		if(StringUtils.isBlank(musicGroupId)){
 			params.put("ownershipType", OwnershipType.OWN);
 		}else{
 			MusicGroup musicGroup = musicGroupService.get(musicGroupId);