|  | @@ -34,6 +34,8 @@ public class SchoolIndexStatServiceImpl implements SchoolIndexStatService {
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				|  |  |      @Resource
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				|  |  |      private LessonExaminationDao lessonExaminationDao;
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				|  |  |  
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				|  |  | +    private static final Map<String, String> gradeMap = createGradeMap();
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				|  |  | +
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				|  |  |      @Override
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				|  |  |      public SchoolIndexStatDto stat(SchoolIndexStatWrapper.QueryDto queryDto) {
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				|  |  |          List<String> musicGroupIds = new ArrayList<>();
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				|  | @@ -46,7 +48,7 @@ public class SchoolIndexStatServiceImpl implements SchoolIndexStatService {
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				|  |  |          if(CollectionUtils.isEmpty(musicGroupIds)){
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				|  |  |              return result;
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				|  |  |          }
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				|  |  | -        List<StudentRegistration> studentRegistrations = studentRegistrationDao.findByMusicGroupIds(musicGroupIds, StudentMusicGroupStatusEnum.NORMAL);
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				|  |  | +        List<StudentRegistration> studentRegistrations = studentRegistrationDao.findByMusicGroupIds1(musicGroupIds, StudentMusicGroupStatusEnum.NORMAL);
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				|  |  |          if(CollectionUtils.isEmpty(studentRegistrations)){
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				|  |  |              return result;
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				|  |  |          }
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				|  | @@ -57,9 +59,8 @@ public class SchoolIndexStatServiceImpl implements SchoolIndexStatService {
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				|  |  |          //年级分布
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				|  |  |          List<SchoolIndexStatWrapper.GradeDistribution> gradeDistributions = studentRegistrations.stream()
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				|  |  |                  .map(e -> {
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				|  |  | -                    if (e.getCurrentGrade() == null) {
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				|  |  | -                        e.setCurrentGrade("一年级");
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				|  |  | -                    }
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				|  |  | +                    String gradeName = createGradeMap().getOrDefault(e.getCurrentGrade(), "一年级");
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				|  |  | +                    e.setCurrentGrade(gradeName);
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				|  |  |                      return e;
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				|  |  |                  })
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				|  |  |                  .collect(Collectors.groupingBy(
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				|  | @@ -229,6 +230,23 @@ public class SchoolIndexStatServiceImpl implements SchoolIndexStatService {
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				|  |  |              }
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				|  |  |          }
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				|  |  |      }
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				|  |  | +    // 辅助方法:创建年级映射
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				|  |  | +    private static Map<String, String> createGradeMap() {
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				|  |  | +        Map<String, String> gradeMap = new HashMap<>();
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				|  |  | +        gradeMap.put("1", "一年级");
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				|  |  | +        gradeMap.put("2", "二年级");
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				|  |  | +        gradeMap.put("3", "三年级");
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				|  |  | +        gradeMap.put("4", "四年级");
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				|  |  | +        gradeMap.put("5", "五年级");
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				|  |  | +        gradeMap.put("6", "六年级");
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				|  |  | +        gradeMap.put("7", "七年级");
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				|  |  | +        gradeMap.put("8", "八年级");
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				|  |  | +        gradeMap.put("9", "九年级");
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				|  |  | +        gradeMap.put("10", "高一");
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				|  |  | +        gradeMap.put("11", "高二");
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				|  |  | +        gradeMap.put("12", "高三");
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				|  |  | +        return gradeMap;
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				|  |  | +    }
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				|  |  |  
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				|  |  |      // 定义自定义顺序的列表
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				|  |  |      List<String> gradeOrder = Arrays.asList(
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