From 21ff1b4f2ef67975eef303bff66ef60388243cf1 Mon Sep 17 00:00:00 2001
From: qirong <2032486488@qq.com>
Date: 星期三, 05 七月 2023 16:42:03 +0800
Subject: [PATCH] 随机试卷修改和统计

---
 src/main/java/com/mindskip/xzs/controller/admin/ExamPaperAnswerController.java |   43 ++++++++++++++++++++++++++++++++++++++++---
 1 files changed, 40 insertions(+), 3 deletions(-)

diff --git a/src/main/java/com/mindskip/xzs/controller/admin/ExamPaperAnswerController.java b/src/main/java/com/mindskip/xzs/controller/admin/ExamPaperAnswerController.java
index 36ccac9..344b712 100644
--- a/src/main/java/com/mindskip/xzs/controller/admin/ExamPaperAnswerController.java
+++ b/src/main/java/com/mindskip/xzs/controller/admin/ExamPaperAnswerController.java
@@ -1,11 +1,15 @@
 package com.mindskip.xzs.controller.admin;
 
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONObject;
+import com.google.gson.JsonObject;
 import com.mindskip.xzs.base.BaseApiController;
 import com.mindskip.xzs.base.RestResponse;
 import com.mindskip.xzs.domain.ExamPaperAnswer;
 import com.mindskip.xzs.domain.ExamPaperSubject;
 import com.mindskip.xzs.domain.Subject;
 import com.mindskip.xzs.domain.User;
+import com.mindskip.xzs.domain.exam.ExamPaperAnswerObject;
 import com.mindskip.xzs.service.*;
 import com.mindskip.xzs.utility.DateTimeUtil;
 import com.mindskip.xzs.utility.ExamUtil;
@@ -16,6 +20,8 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 
+import javax.validation.Valid;
+import java.util.List;
 import java.util.stream.Collectors;
 
 @RestController("AdminExamPaperAnswerController")
@@ -51,7 +57,7 @@
             Integer[] ids = examPaperSubjectService.getByExamPaperId(examPaperAnswer.getExamPaperId())
                     .stream().map(ExamPaperSubject::getSubjectId).toArray(Integer[]::new);
             String name = "";
-            if(ids.length>0){
+            if (ids.length > 0) {
                 name = subjectService.selectByIds(ids)
                         .stream().map(Subject::getName).collect(Collectors.joining(","));
             }
@@ -66,12 +72,43 @@
             return vm;
         });
         page.setList(page.getList().stream().filter(e -> e != null).collect(Collectors.toList()));
-        if(page.getSize()>0){
+        if (page.getSize() > 0) {
             Double avg = page.getList().stream().mapToInt(ExamPaperAnswerPageResponseVM -> Integer.parseInt(ExamPaperAnswerPageResponseVM.getUserScore())).average().getAsDouble();
             page.getList().get(0).setAvgSource(avg);
         }
         return RestResponse.ok(page);
     }
 
-
+    @RequestMapping(value = "/paperStatistics", method = RequestMethod.POST)
+    public RestResponse<ExamPaperAnswerObject> paperStatistics(@RequestBody @Valid String paperName) {
+        ExamPaperAnswerObject object = new ExamPaperAnswerObject();
+        String str = JSONObject.parseObject(paperName).get("paperName").toString();
+        List<ExamPaperAnswer> examPaperAnswers = examPaperAnswerService.selectByPaperName(str)
+                .stream().map(e -> {
+                    e.setUserScore(e.getUserScore() / 10);
+                    return e;
+                }).collect(Collectors.toList());
+        if (examPaperAnswers.size() == 0) {
+            object.setAdvanced(0);
+            object.setAvg(0.0);
+            object.setIntermediate(0);
+            object.setMax(0);
+            object.setMin(0);
+            object.setLowGrade(0);
+        } else {
+            Integer lowGrade = examPaperAnswers.stream().filter(e -> e.getUserScore() < 60 && 0 <= e.getUserScore()).collect(Collectors.toList()).size();
+            Integer intermediate = examPaperAnswers.stream().filter(e -> e.getUserScore() < 80 && 60 <= e.getUserScore()).collect(Collectors.toList()).size();
+            Integer advanced = examPaperAnswers.stream().filter(e -> e.getUserScore() <= 100 && 80 <= e.getUserScore()).collect(Collectors.toList()).size();
+            Integer max = examPaperAnswers.stream().map(ExamPaperAnswer::getUserScore).max(Integer::compareTo).get();
+            Integer min = examPaperAnswers.stream().map(ExamPaperAnswer::getUserScore).min(Integer::compareTo).get();
+            Double avg = examPaperAnswers.stream().mapToDouble(ExamPaperAnswer::getUserScore).average().getAsDouble();
+            object.setAdvanced(advanced);
+            object.setAvg(avg);
+            object.setIntermediate(intermediate);
+            object.setMax(max);
+            object.setMin(min);
+            object.setLowGrade(lowGrade);
+        }
+        return RestResponse.ok(object);
+    }
 }

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