发布考试完善

sexam/src/main/java/com/xhkjedu/sexam/service/exam/EBaseService.java

 
         //考试学生
         students.forEach(s -> s.setExamid(examid));
-        eClassStudentMapper.insertList(students);
+        students = students.stream().filter(s -> !N_Utils.isEmptyInteger(s.getStudentid())).collect(Collectors.toList());
+        if(N_Utils.isListNotEmpty(students)) eClassStudentMapper.insertList(students);
 
         //考试科目
         List<ESubject> subjects = model.getSubjects();//考试科目

sexam/src/main/resources/mapper/exam/EClassMapper.xml

         <foreach collection="classids" item="classid" index="index" open="(" separator="," close=")">
             ${classid}
         </foreach>
+        and classnum!=0
     </select>
     <!--考试班级-->
     <select id="listByExamId" resultType="java.util.Map">