解决问题

src/main/java/com/bbd/bpm/listener/PutAssigneeListener.java

@@ -77,7 +77,7 @@ public class PutAssigneeListener   implements Serializable, TaskListener {
                     }
                 }
                 //取出查到的userId 标识
-                delegateTask.setAssignee(bpmEmployee.getUserCode());
+                taskService.setAssignee(delegateTask.getId(),bpmEmployee.getUserCode());
             }
         }else{
             taskService.setAssignee(delegateTask.getId(),"hr");