update

src/main/java/com/qmth/exam/reserve/service/impl/ExamSiteServiceImpl.java

@@ -243,7 +243,7 @@ public class ExamSiteServiceImpl extends ServiceImpl<ExamSiteDao, ExamSiteEntity
             LambdaUpdateWrapper<ExamSiteEntity> updateWrapper = new LambdaUpdateWrapper<>();
             updateWrapper.set(ExamSiteEntity::getName, examSite.getName());
             updateWrapper.set(ExamSiteEntity::getAddress, examSite.getAddress());
-            updateWrapper.eq(ExamSiteEntity::getId, examSite.getId());
+            updateWrapper.eq(ExamSiteEntity::getId, existSite.getId());
             update(null, updateWrapper);
         } else {
             examSite.setCapacity(0);