生成考试报告

smarking/src/main/java/com/xhkjedu/smarking/model/paper/MsPaper.java

     //试题
     @Transient
     private List<MsPaperQtypeQuestion> questions;
+    @Transient
+    //科目名称
+    private String subjectname;
 
 }

smarking/src/main/java/com/xhkjedu/smarking/model/report/reportother/MsrExam.java

     private Integer examid;
     //班级数量
     private Integer classnum;
-    //学生数量
+    //总人数
+    private Integer totalnum;
+    //实考人数（参考人数）
     private Integer stunum;
     //缺考数量
     private Integer missnum;

smarking/src/main/java/com/xhkjedu/smarking/model/report/reportsubject/MsrSubject.java

     private String subjectid;
     //科目名称
     private String subjectname;
+    //满分
+    private Double fullscore;
     //最高分
     private Double maxscore;
     //最低分

smarking/src/main/java/com/xhkjedu/smarking/service/report/reportother/MsrExamService.java

 import com.xhkjedu.smarking.model.paper.MsPaper;
 import com.xhkjedu.smarking.model.report.reportother.MsrExam;
 import com.xhkjedu.smarking.model.report.reportstu.MsrStudent;
+import com.xhkjedu.smarking.model.report.reportsubject.MsrSubject;
 import com.xhkjedu.smarking.model.stupaper.MsPaperStudent;
+import com.xhkjedu.smarking.utils.MarkingUtil;
 import com.xhkjedu.utils.N_Utils;
 import org.springframework.stereotype.Service;
 
         List<MsPaperStudent> paperStudents = paperStudentMapper.listPaperStudentByExamId(examid, mpids);//试学生成绩列表
 
         Integer classnum = N_Utils.obj2Int(classes.stream().map(MsClass::getClassid).distinct().count());
-        Integer stunum = N_Utils.obj2Int(students.stream().map(MsClassStudent::getStudentid).distinct().count());
-        Integer sknum = N_Utils.obj2Int(paperStudents.stream().filter(s -> s.getSstate().equals(2)).map(MsPaperStudent::getStudentid).distinct().count());
+        Integer totalnum = N_Utils.obj2Int(students.stream().map(MsClassStudent::getStudentid).distinct().count());
+        Integer stunum = N_Utils.obj2Int(paperStudents.stream().filter(s -> s.getSstate().equals(2)).map(MsPaperStudent::getStudentid).distinct().count());
+        Integer missnum = totalnum - stunum;
         List<MsrStudent> schoolStudents = new ArrayList<>();//学校学生成绩
         List<MsrStudent> schoolSubjectStudents = new ArrayList<>();//学校科目学生成绩
         List<MsrStudent> classStudents = new ArrayList<>();//班级学生成绩
         double schoolStatisticsMax = N_Utils.handleInfinity(schoolStatistics.getMax());
         //最低分均不包括0分
         double schoolStatisticsMin = N_Utils.handleInfinity(schoolStudents2.stream().filter(s -> s.getStuscore() > 0).mapToDouble(MsrStudent::getStuscore).summaryStatistics().getMin());
-
+        double schoolStatisticsAverage = N_Utils.formatDouble(schoolStatistics.getAverage(), 2);
 
         //总体分析
         MsrExam msrExam = new MsrExam();
         msrExam.setExamid(examid);
         msrExam.setClassnum(classnum);
+        msrExam.setTotalnum(totalnum);
         msrExam.setStunum(stunum);
-        msrExam.setMissnum(stunum - sknum);
+        msrExam.setMissnum(missnum);
         msrExam.setSubjectnum(subjects.size());
         msrExam.setMaxscore(schoolStatisticsMax);
         msrExam.setMinscore(schoolStatisticsMin);
         msrExam.setCreatetime(N_Utils.getSecondTimestamp());
         msrExamMapper.insert(msrExam);
 
+        //科目分析
+        Map<String, List<MsPaperStudent>> subjectCollect = paperStudents.stream().collect(Collectors.groupingBy(MsPaperStudent::getSubjectid));
+        double fullscore = subjects.stream().mapToDouble(MsPaper::getPscore).sum();
+        List<MsrSubject> msrSubjects = new ArrayList<>();
+        MsrSubject msrSubject = new MsrSubject();
+        msrSubject.setExamid(examid);
+        msrSubject.setSubjectid("zf");
+        msrSubject.setSubjectname("总分");
+        msrSubject.setFullscore(fullscore);
+        msrSubject.setMaxscore(schoolStatisticsMax);
+        msrSubject.setMinscore(schoolStatisticsMin);
+        msrSubject.setAvgscore(schoolStatisticsAverage);
+        msrSubject.setScorerate(N_Utils.getDoubleDivideAndMulitiply(schoolStatisticsAverage, fullscore));
+        msrSubject.setTotalnum(totalnum);
+        msrSubject.setStunum(stunum);
+        msrSubject.setMissnum(missnum);
+        msrSubjects.add(msrSubject);
+        for (MsPaper subject : subjects) {
+            msrSubject = new MsrSubject();
+            msrSubject.setExamid(examid);
+            msrSubject.setSubjectid(subject.getSubjectid());
+            msrSubject.setSubjectname(subject.getSubjectname());
+            msrSubject.setFullscore(subject.getPscore());
+            List<MsPaperStudent> studentList = subjectCollect.get(subject.getSubjectid());
+            msrSubjects.add(msrSubject);
+        }
+
         examMapper.updateExamState(examid, 3);
     }
 

smarking/src/main/java/com/xhkjedu/smarking/utils/MarkingUtil.java

         return result;
     }
 
+    //方差s^2=[(x1-x)^2 +...(xn-x)^2]/n 或者s^2=[(x1-x)^2 +...(xn-x)^2]/(n-1)
+    public static double fc(List<Double> x) {
+        if (N_Utils.isListEmpty(x)) return 0;
+        int m = x.size();
+        double sum = 0;
+        for (int i = 0; i < m; i++) {//求和
+            sum += x.get(i);
+        }
+        double dAve = sum / m;//求平均值
+        double dVar = 0;
+        for (int i = 0; i < m; i++) {//求方差
+            dVar += (x.get(i) - dAve) * (x.get(i) - dAve);
+        }
+        return dVar / m;
+    }
+
+    //标准差σ=sqrt(s^2)
+    public static double bzc(List<Double> x) {
+        if (N_Utils.isListEmpty(x)) return 0;
+        return N_Utils.formatDouble(Math.sqrt(fc(x)), 2);
+    }
+
     public static void main(String[] args) {
         String str = "ADAC-D-(C)(AB)(CD)(ACB)BB";
 

smarking/src/main/resources/mapper/exam/MsSubjectMapper.xml

     </select>
     <!--考试报告科目列表-->
     <select id="listReportSubject" resultType="com.xhkjedu.smarking.model.paper.MsPaper">
-        select s.subjectid,p.mpid,p.pnum,p.mergepnum,p.pscore,p.correcttype
+        select s.subjectid,s.subjectname,p.mpid,p.pnum,p.mergepnum,p.pscore,p.correcttype
         from ms_subject s inner join ms_paper p on s.msid=p.msid
         where s.examid=#{examid}
         <if test="exammode!=3">