[Fix] fix item name and description length are not verified.

dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/controller/BaseController.java

@@ -100,7 +100,7 @@ public class BaseController {
             return success(msg, datalist);
         } else {
             Integer code = status.getCode();
-            String msg = ((Status) result.get(Constants.MSG)).getMsg();
+            String msg = (String)result.get("msg");
             return error(code, msg);
         }
     }

dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/ProjectServiceImpl.java

@@ -342,14 +342,12 @@ public class ProjectServiceImpl extends BaseServiceImpl implements ProjectServic
         Map<String, Object> result = new HashMap<>();
 
         if(checkLengthIllegal(projectName, Constants.NAME_LENGTH_GO_ONLINE)) {
-            result.put(Constants.STATUS,Status.FAILED);
-            result.put(Constants.MSG, Status.PROJECT_NAME_TOO_LONG_ERROR);
+            putMsg(result,Status.PROJECT_NAME_TOO_LONG_ERROR);
             return result;
         }
 
         if(checkLengthIllegal(desc, Constants.DESC_LENGTH_GO_ONLINE)) {
-            result.put(Constants.STATUS,Status.FAILED);
-            result.put(Constants.MSG, Status.DESCRIPTION_TOO_LONG_ERROR);
+            putMsg(result,Status.DESCRIPTION_TOO_LONG_ERROR);
             return result;
         }