diff --git a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/carousel/domain/vo/CarouselQueryVo.java b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/carousel/domain/vo/CarouselQueryVo.java
index b5856ff..82c37a7 100644
--- a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/carousel/domain/vo/CarouselQueryVo.java
+++ b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/carousel/domain/vo/CarouselQueryVo.java
@@ -5,7 +5,14 @@
 
 package org.funcode.portal.server.module.ielts.carousel.domain.vo;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
 import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.persistence.Temporal;
+import jakarta.persistence.TemporalType;
 import jakarta.validation.constraints.Size;
 import lombok.Data;
 import org.funcode.portal.server.common.domain.base.PageRequestVo;
@@ -27,13 +34,29 @@ public class CarouselQueryVo {
     @Size(max = 100, message = "{ielts.domain.vo.CarouselQueryVo.title.Size}")
     @Schema(description = "轮播标题（模糊）")
     private String title;
-    @Schema(description = "创建时间的开始时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "创建时间的开始时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime createdAtBegin;
-    @Schema(description = "创建时间的结束时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "创建时间的结束时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime createdAtEnd;
-    @Schema(description = "更新时间的开始时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "更新时间的开始时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime updatedAtBegin;
-    @Schema(description = "更新时间的结束时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "更新时间的结束时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime updatedAtEnd;
     @Schema(description = "分页参数")
     private PageRequestVo pageRequestVo;
diff --git a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/column/domain/vo/CourseColumnAddOrEditVo.java b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/column/domain/vo/CourseColumnAddOrEditVo.java
index f632095..12ff723 100644
--- a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/column/domain/vo/CourseColumnAddOrEditVo.java
+++ b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/column/domain/vo/CourseColumnAddOrEditVo.java
@@ -13,6 +13,7 @@
 import org.springframework.stereotype.Component;
 
 import java.math.BigDecimal;
+import java.util.List;
 
 /**
  * @author 李冲
@@ -31,7 +32,7 @@ public class CourseColumnAddOrEditVo {
     @Schema(description = "专栏标题")
     private String title;
     @Schema(description = "专栏状态（0：已下架;1：已上架;2：下架并静止播放）")
-    private int status;
+    private Integer status;
     @DecimalMin(value = "0.00", message = "{ielts.domain.vo.CourseColumnAddOrEditVo.price.DecimalMin}")
     @Schema(description = "价格")
     private BigDecimal price;
@@ -39,5 +40,7 @@ public class CourseColumnAddOrEditVo {
     private Long courseColumnCoverStorageId;
     @Schema(description = "专栏简介文件ID")
     private Long courseColumnDescriptionStorageId;
+    @Schema(description = "课程ID列表")
+    private List<Long> courseIds;
 
 }
diff --git a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/column/domain/vo/CourseColumnQueryVo.java b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/column/domain/vo/CourseColumnQueryVo.java
index 05c211b..3496499 100644
--- a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/column/domain/vo/CourseColumnQueryVo.java
+++ b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/column/domain/vo/CourseColumnQueryVo.java
@@ -5,7 +5,14 @@
 
 package org.funcode.portal.server.module.ielts.column.domain.vo;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
 import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.persistence.Temporal;
+import jakarta.persistence.TemporalType;
 import jakarta.validation.constraints.Size;
 import lombok.Data;
 import org.funcode.portal.server.common.domain.base.PageRequestVo;
@@ -29,13 +36,29 @@ public class CourseColumnQueryVo {
     private String title;
     @Schema(description = "专栏状态（0：已下架;1：已上架;2：下架并静止播放）（精确）")
     private Integer status;
-    @Schema(description = "创建时间的开始时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "创建时间的开始时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime createdAtBegin;
-    @Schema(description = "创建时间的结束时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "创建时间的结束时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime createdAtEnd;
-    @Schema(description = "更新时间的开始时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "更新时间的开始时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime updatedAtBegin;
-    @Schema(description = "更新时间的结束时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "更新时间的结束时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime updatedAtEnd;
     @Schema(description = "分页参数")
     private PageRequestVo pageRequestVo;
diff --git a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/column/service/impl/CourseColumnServiceImpl.java b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/column/service/impl/CourseColumnServiceImpl.java
index 266e326..76185f0 100644
--- a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/column/service/impl/CourseColumnServiceImpl.java
+++ b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/column/service/impl/CourseColumnServiceImpl.java
@@ -9,6 +9,7 @@
 import org.apache.commons.lang3.StringUtils;
 import org.funcode.portal.server.common.core.base.service.impl.BaseServiceImpl;
 import org.funcode.portal.server.common.domain.base.PageRequestVo;
+import org.funcode.portal.server.common.domain.ielts.Course;
 import org.funcode.portal.server.common.domain.ielts.CourseColumn;
 import org.funcode.portal.server.common.domain.ielts.CourseColumn_;
 import org.funcode.portal.server.common.domain.ielts.Storage;
@@ -16,11 +17,17 @@
 import org.funcode.portal.server.module.ielts.column.domain.vo.CourseColumnQueryVo;
 import org.funcode.portal.server.module.ielts.column.repository.ICourseColumnRepository;
 import org.funcode.portal.server.module.ielts.column.service.ICourseColumnService;
+import org.funcode.portal.server.module.ielts.course.repository.ICourseRepository;
 import org.funcode.portal.server.module.ielts.storage.repository.IStorageRepository;
 import org.springframework.data.domain.Page;
 import org.springframework.data.jpa.domain.Specification;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.CollectionUtils;
+
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
 
 /**
  * @author 李冲
@@ -32,6 +39,7 @@
 public class CourseColumnServiceImpl extends BaseServiceImpl<CourseColumn, Long> implements ICourseColumnService {
 
     private final ICourseColumnRepository courseColumnRepository;
+    private final ICourseRepository courseRepository;
     private final IStorageRepository storageRepository;
 
     @Override
@@ -76,8 +84,14 @@ public Page<CourseColumn> findPage(PageRequestVo pageRequestVo) {
     }
 
     private CourseColumn transAddOrEditVoToCourseColumn(CourseColumnAddOrEditVo courseColumnAddOrEditVo) {
-        Storage coverStorage = storageRepository.getReferenceById(courseColumnAddOrEditVo.getCourseColumnCoverStorageId());
-        Storage descriptionStorage = storageRepository.getReferenceById(courseColumnAddOrEditVo.getCourseColumnDescriptionStorageId());
+        Storage coverStorage = courseColumnAddOrEditVo.getCourseColumnCoverStorageId() != null ?
+                storageRepository.getReferenceById(courseColumnAddOrEditVo.getCourseColumnCoverStorageId())
+                : null;
+        Storage descriptionStorage = courseColumnAddOrEditVo.getCourseColumnDescriptionStorageId() != null ?
+                storageRepository.getReferenceById(courseColumnAddOrEditVo.getCourseColumnDescriptionStorageId())
+                : null;
+        List<Long> courseIds = courseColumnAddOrEditVo.getCourseIds();
+        List<Course> courses = CollectionUtils.isEmpty(courseIds) ? Collections.emptyList() : courseRepository.findAllById(courseIds);
         return CourseColumn.builder()
                 .id(courseColumnAddOrEditVo.getId())
                 .courseColumnCoverStorage(coverStorage)
@@ -85,6 +99,7 @@ private CourseColumn transAddOrEditVoToCourseColumn(CourseColumnAddOrEditVo cour
                 .price(courseColumnAddOrEditVo.getPrice())
                 .status(courseColumnAddOrEditVo.getStatus())
                 .title(courseColumnAddOrEditVo.getTitle())
+                .courses(CollectionUtils.isEmpty(courses) ? Collections.emptySet() : new HashSet<>(courses))
                 .build();
     }
 }
diff --git a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/course/domain/vo/CourseQueryVo.java b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/course/domain/vo/CourseQueryVo.java
index bf3123a..baf8ea9 100644
--- a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/course/domain/vo/CourseQueryVo.java
+++ b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/course/domain/vo/CourseQueryVo.java
@@ -5,7 +5,14 @@
 
 package org.funcode.portal.server.module.ielts.course.domain.vo;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
 import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.persistence.Temporal;
+import jakarta.persistence.TemporalType;
 import jakarta.validation.constraints.Size;
 import lombok.Data;
 import org.funcode.portal.server.common.domain.base.PageRequestVo;
@@ -29,13 +36,29 @@ public class CourseQueryVo {
     private String title;
     @Schema(description = "课程状态（0：已下架;1：已上架;2：下架并静止播放）（精确）")
     private Integer status;
-    @Schema(description = "创建时间的开始时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "创建时间的开始时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime createdAtBegin;
-    @Schema(description = "创建时间的结束时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "创建时间的结束时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime createdAtEnd;
-    @Schema(description = "更新时间的开始时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "更新时间的开始时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime updatedAtBegin;
-    @Schema(description = "更新时间的结束时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "更新时间的结束时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime updatedAtEnd;
     @Schema(description = "分页参数")
     private PageRequestVo pageRequestVo;
diff --git a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/course/service/impl/CourseServiceImpl.java b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/course/service/impl/CourseServiceImpl.java
index 386f6f8..9db1a9b 100644
--- a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/course/service/impl/CourseServiceImpl.java
+++ b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/course/service/impl/CourseServiceImpl.java
@@ -7,6 +7,7 @@
 
 import lombok.RequiredArgsConstructor;
 import org.apache.commons.lang3.StringUtils;
+import org.funcode.portal.server.common.core.base.exception.BusinessException;
 import org.funcode.portal.server.common.core.base.service.impl.BaseServiceImpl;
 import org.funcode.portal.server.common.domain.base.PageRequestVo;
 import org.funcode.portal.server.common.domain.ielts.Course;
@@ -23,6 +24,7 @@
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.CollectionUtils;
 
+import java.util.Collections;
 import java.util.HashSet;
 import java.util.List;
 
@@ -83,12 +85,17 @@ public Page<Course> findPage(PageRequestVo pageRequestVo) {
     private Course transAddOrEditVoToCourse(CourseAddOrEditVo courseAddOrEditVo) {
         Long mediaStorageId = courseAddOrEditVo.getCourseMediaStorageId();
         if (mediaStorageId == null) {
-            return null;
+            throw new BusinessException("media storage id is null");
         }
         Storage mediaStorage = storageRepository.getReferenceById(mediaStorageId);
-        Storage coverStorage = storageRepository.getReferenceById(courseAddOrEditVo.getCourseCoverStorageId());
-        Storage descriptionStorage = storageRepository.getReferenceById(courseAddOrEditVo.getCourseDescriptionStorageId());
-        List<Storage> courseAttachmentStorages = storageRepository.findAllById(courseAddOrEditVo.getCourseAttachmentStorageIds());
+        Storage coverStorage = courseAddOrEditVo.getCourseCoverStorageId() != null ?
+                storageRepository.getReferenceById(courseAddOrEditVo.getCourseCoverStorageId())
+                : null;
+        Storage descriptionStorage = courseAddOrEditVo.getCourseDescriptionStorageId() != null ?
+                storageRepository.getReferenceById(courseAddOrEditVo.getCourseDescriptionStorageId())
+                : null;
+        List<Long> courseAttachmentStorageIds = courseAddOrEditVo.getCourseAttachmentStorageIds();
+        List<Storage> courseAttachmentStorages = CollectionUtils.isEmpty(courseAttachmentStorageIds) ? Collections.emptyList() : storageRepository.findAllById(courseAttachmentStorageIds);
         return Course.builder()
                 .id(courseAddOrEditVo.getId())
                 .title(courseAddOrEditVo.getTitle())
@@ -97,7 +104,7 @@ private Course transAddOrEditVoToCourse(CourseAddOrEditVo courseAddOrEditVo) {
                 .courseMediaStorage(mediaStorage)
                 .courseCoverStorage(coverStorage)
                 .courseDescriptionStorage(descriptionStorage)
-                .courseAttachmentStorages(CollectionUtils.isEmpty(courseAttachmentStorages) ? new HashSet<>() : new HashSet<>(courseAttachmentStorages))
+                .courseAttachmentStorages(CollectionUtils.isEmpty(courseAttachmentStorages) ? Collections.emptySet() : new HashSet<>(courseAttachmentStorages))
                 .build();
     }
 }
diff --git a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/redeem/code/domain/vo/RedeemCodeAddVo.java b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/redeem/code/domain/vo/RedeemCodeAddVo.java
index 6161c1d..9e6856c 100644
--- a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/redeem/code/domain/vo/RedeemCodeAddVo.java
+++ b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/redeem/code/domain/vo/RedeemCodeAddVo.java
@@ -5,7 +5,14 @@
 
 package org.funcode.portal.server.module.ielts.redeem.code.domain.vo;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
 import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.persistence.Temporal;
+import jakarta.persistence.TemporalType;
 import lombok.Data;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Component;
@@ -24,7 +31,11 @@
 @Schema(description = "兑换码新增VO")
 public class RedeemCodeAddVo {
 
-    @Schema(description = "过期时间（默认1天过期）")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "过期时间（默认1天过期）", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime expireTime;
     @Schema(description = "课程ID列表")
     private List<Long> courseIds;
diff --git a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/redeem/code/domain/vo/RedeemCodeQueryVo.java b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/redeem/code/domain/vo/RedeemCodeQueryVo.java
index 561e258..aee8bd4 100644
--- a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/redeem/code/domain/vo/RedeemCodeQueryVo.java
+++ b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/redeem/code/domain/vo/RedeemCodeQueryVo.java
@@ -5,7 +5,14 @@
 
 package org.funcode.portal.server.module.ielts.redeem.code.domain.vo;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
 import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.persistence.Temporal;
+import jakarta.persistence.TemporalType;
 import jakarta.validation.constraints.Size;
 import lombok.Data;
 import org.funcode.portal.server.common.domain.base.PageRequestVo;
@@ -29,21 +36,53 @@ public class RedeemCodeQueryVo {
     @Size(max = 200, message = "{ielts.domain.vo.RedeemCodeQueryVo.code.Size}")
     @Schema(description = "兑换码code（模糊）")
     private String code;
-    @Schema(description = "过期时间的开始时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "过期时间的开始时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime expireTimeBegin;
-    @Schema(description = "过期时间的结束时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "过期时间的结束时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime expireTimeEnd;
-    @Schema(description = "兑换时间的开始时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "兑换时间的开始时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime redeemTimeBegin;
-    @Schema(description = "兑换时间的结束时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "兑换时间的结束时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime redeemTimeEnd;
-    @Schema(description = "创建时间的开始时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "创建时间的开始时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime createdAtBegin;
-    @Schema(description = "创建时间的结束时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "创建时间的结束时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime createdAtEnd;
-    @Schema(description = "更新时间的开始时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "更新时间的开始时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime updatedAtBegin;
-    @Schema(description = "更新时间的结束时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "更新时间的结束时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime updatedAtEnd;
     @Schema(description = "分页参数")
     private PageRequestVo pageRequestVo;
diff --git a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/redeem/code/service/impl/RedeemCodeServiceImpl.java b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/redeem/code/service/impl/RedeemCodeServiceImpl.java
index c05997c..b20f61e 100644
--- a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/redeem/code/service/impl/RedeemCodeServiceImpl.java
+++ b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/redeem/code/service/impl/RedeemCodeServiceImpl.java
@@ -98,9 +98,9 @@ public RedeemCode addRedeemCode(RedeemCodeAddVo redeemCodeAddVo) {
             throw new BusinessException("过期时间不能小于当前时间");
         }
         // 查找课程
-        List<Course> courses = CollectionUtils.isEmpty(courseIds) ? new ArrayList<>() : courseRepository.findAllById(courseIds);
+        List<Course> courses = CollectionUtils.isEmpty(courseIds) ? Collections.emptyList() : courseRepository.findAllById(courseIds);
         // 查找专栏
-        List<CourseColumn> courseColumns = CollectionUtils.isEmpty(courseColumnIds) ? new ArrayList<>() : courseColumnRepository.findAllById(courseColumnIds);
+        List<CourseColumn> courseColumns = CollectionUtils.isEmpty(courseColumnIds) ? Collections.emptyList() : courseColumnRepository.findAllById(courseColumnIds);
         // 生成随机兑换码
         String code = UUID.randomUUID().toString().replaceAll("-", "").toUpperCase();
         RedeemCode redeemCode = RedeemCode.builder()
diff --git a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/storage/domain/vo/StorageAddOrEditVo.java b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/storage/domain/vo/StorageAddOrEditVo.java
index 551165f..009141a 100644
--- a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/storage/domain/vo/StorageAddOrEditVo.java
+++ b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/storage/domain/vo/StorageAddOrEditVo.java
@@ -33,7 +33,7 @@ public class StorageAddOrEditVo {
     private String title;
 
     @Schema(description = "文件类型（0:图片；1:音频；2:视频；3:markdown）")
-    private int fileType;
+    private Integer fileType;
 
     @NotNull(message = "{ielts.domain.vo.StorageAddOrEditVo.file.NotNull}")
     @Schema(description = "文件")
diff --git a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/storage/domain/vo/StorageQueryVo.java b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/storage/domain/vo/StorageQueryVo.java
index 2f1890f..f5ec8c3 100644
--- a/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/storage/domain/vo/StorageQueryVo.java
+++ b/module/ielts/src/main/java/org/funcode/portal/server/module/ielts/storage/domain/vo/StorageQueryVo.java
@@ -5,7 +5,14 @@
 
 package org.funcode.portal.server.module.ielts.storage.domain.vo;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
 import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.persistence.Temporal;
+import jakarta.persistence.TemporalType;
 import jakarta.validation.constraints.Size;
 import lombok.Data;
 import org.funcode.portal.server.common.domain.base.PageRequestVo;
@@ -37,13 +44,29 @@ public class StorageQueryVo {
     @Size(max = 200, message = "{ielts.domain.vo.StorageQueryVo.versionId.Size}")
     @Schema(description = "版本ID（精确）")
     private String versionId;
-    @Schema(description = "创建时间的开始时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "创建时间的开始时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime createdAtBegin;
-    @Schema(description = "创建时间的结束时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "创建时间的结束时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime createdAtEnd;
-    @Schema(description = "更新时间的开始时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "更新时间的开始时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime updatedAtBegin;
-    @Schema(description = "更新时间的结束时间")
+    @Temporal(TemporalType.TIMESTAMP)
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", shape = JsonFormat.Shape.STRING)
+    @Schema(description = "更新时间的结束时间", type = "string", format = "date", example = "2024-01-01 01:01:00")
     private LocalDateTime updatedAtEnd;
     @Schema(description = "分页参数")
     private PageRequestVo pageRequestVo;