【修改】进入考试，未分配考场中文提示

exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/service/monitor/MonitorServiceImpl.java

@@ -262,7 +262,9 @@ public class MonitorServiceImpl implements MonitorService {
                                 EducationPaperPerson educationPaperPerson = educationPaperPersonMapper.selectByTaskIdAndPersonId(stuMonitorPaperVo.getTaskId(), stuMonitorPaperVo.getStuId());
                                 EducationPaperSession educationPaperSession = educationPaperSessionMapper.selectEducationPaperSessionBySessionId(educationPaperPerson.getSessionId());
 
-
+                                if (educationPaperSession == null) {
+                                        throw new MonitorSpecialtyException("未分配考场,请练习教师!");
+                                }
                                 //结束时间
                                 Date endTime = educationPaperSession.getEndTime();
                                 //开始时间