From dfe042e597a9512572fc2d4bdc3f550bc4b399bb Mon Sep 17 00:00:00 2001
From: yangdj <18302547071@163>
Date: Wed, 12 Apr 2023 10:54:06 +0800
Subject: [PATCH] =?UTF-8?q?=E8=A7=A3=E5=86=B3=E9=A6=96=E9=A1=B5=E6=96=B0?=
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---
 web/src/main/java/com/ibeetl/jlw/service/StudentService.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/web/src/main/java/com/ibeetl/jlw/service/StudentService.java b/web/src/main/java/com/ibeetl/jlw/service/StudentService.java
index 11e00232..7f342eae 100644
--- a/web/src/main/java/com/ibeetl/jlw/service/StudentService.java
+++ b/web/src/main/java/com/ibeetl/jlw/service/StudentService.java
@@ -963,7 +963,10 @@ public class StudentService extends CoreBaseService<Student>{
         }
         List<Student> select = lambdaQuery.andEq(Student::getStudentStatus, 1).select();
         Set<Long> collect = select.stream().map(Student::getClassId).collect(Collectors.toSet());
-        List<SchoolClass> select1 = schoolClassDao.createLambdaQuery().andIn(SchoolClass::getClassId, collect).select();
+        List<SchoolClass> select1 = new ArrayList<SchoolClass>();
+        if(collect.size() > 0){
+            select1 = schoolClassDao.createLambdaQuery().andIn(SchoolClass::getClassId, collect).select();
+        }
         Set<Long> collect1 = select1.stream().map(SchoolClass::getClassId).collect(Collectors.toSet());
         select.removeIf(next -> !collect1.contains(next.getClassId()));
         return select;