diff --git a/xianyu-common/src/main/java/top/biwin/xinayu/common/dto/request/AiSettingRequest.java b/xianyu-common/src/main/java/top/biwin/xinayu/common/dto/request/AiSettingRequest.java
new file mode 100644
index 0000000..4a2ac1b
--- /dev/null
+++ b/xianyu-common/src/main/java/top/biwin/xinayu/common/dto/request/AiSettingRequest.java
@@ -0,0 +1,39 @@
+package top.biwin.xinayu.common.dto.request;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Data;
+
+/**
+ * TODO
+ *
+ * @author wangli
+ * @since 2026-01-29 23:58
+ */
+@Data
+public class AiSettingRequest {
+
+    @JsonProperty("ai_enabled")
+    private Boolean aiEnabled;
+
+    @JsonProperty("api_key")
+    private String apiKey;
+
+    @JsonProperty("base_url")
+    private String baseUrl;
+
+    @JsonProperty("custom_prompts")
+    private String customPrompts;
+
+    @JsonProperty("max_bargain_rounds")
+    private Integer maxBargainRounds;
+
+    @JsonProperty("max_discount_amount")
+    private Integer maxDiscountAmount;
+
+    @JsonProperty("max_discount_percent")
+    private Integer maxDiscountPercent;
+
+    @JsonProperty("model_name")
+    private String modelName;
+
+}
diff --git a/xianyu-core/src/main/java/top/biwin/xianyu/core/entity/AiReplySettingEntity.java b/xianyu-core/src/main/java/top/biwin/xianyu/core/entity/AiReplySettingEntity.java
index 09c2d67..708b2a5 100644
--- a/xianyu-core/src/main/java/top/biwin/xianyu/core/entity/AiReplySettingEntity.java
+++ b/xianyu-core/src/main/java/top/biwin/xianyu/core/entity/AiReplySettingEntity.java
@@ -1,5 +1,6 @@
 package top.biwin.xianyu.core.entity;
 
+import com.fasterxml.jackson.annotation.JsonProperty;
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
 import jakarta.persistence.Id;
@@ -17,37 +18,48 @@ public class AiReplySettingEntity {
 
     @Id
     @Column(name = "goofish_id")
+    @JsonProperty("goofish_id")
     private String goofishId;
 
     @Column(name = "ai_enabled")
+    @JsonProperty("ai_enabled")
     private Boolean aiEnabled = false;
 
     @Column(name = "model_name")
+    @JsonProperty("model_name")
     private String modelName = "qwen-plus";
 
     @Column(name = "api_key")
+    @JsonProperty("api_key")
     private String apiKey;
 
     @Column(name = "base_url")
+    @JsonProperty("base_url")
     private String baseUrl = "https://dashscope.aliyuncs.com/compatible-mode/v1";
 
     @Column(name = "max_discount_percent")
+    @JsonProperty("max_discount_percent")
     private Integer maxDiscountPercent = 10;
 
     @Column(name = "max_discount_amount")
+    @JsonProperty("max_discount_amount")
     private Integer maxDiscountAmount = 100;
 
     @Column(name = "max_bargain_rounds")
+    @JsonProperty("max_bargain_rounds")
     private Integer maxBargainRounds = 3;
 
     @Column(name = "custom_prompts", columnDefinition = "TEXT")
+    @JsonProperty("custom_prompts")
     private String customPrompts;
 
     @CreationTimestamp
     @Column(name = "created_at", updatable = false)
+    @JsonProperty("created_at")
     private LocalDateTime createdAt;
 
     @UpdateTimestamp
     @Column(name = "updated_at")
+    @JsonProperty("updated_at")
     private LocalDateTime updatedAt;
 }
diff --git a/xianyu-core/src/main/java/top/biwin/xianyu/core/repository/AiReplySettingRepository.java b/xianyu-core/src/main/java/top/biwin/xianyu/core/repository/AiReplySettingRepository.java
index 6ec6955..d24bb5b 100644
--- a/xianyu-core/src/main/java/top/biwin/xianyu/core/repository/AiReplySettingRepository.java
+++ b/xianyu-core/src/main/java/top/biwin/xianyu/core/repository/AiReplySettingRepository.java
@@ -2,8 +2,12 @@ package top.biwin.xianyu.core.repository;
 
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
+import top.biwin.xianyu.core.entity.AdminUserEntity;
 import top.biwin.xianyu.core.entity.AiReplySettingEntity;
 
+import java.util.Optional;
+
 @Repository
 public interface AiReplySettingRepository extends JpaRepository<AiReplySettingEntity, String> {
+
 }
diff --git a/xianyu-server/src/main/java/top/biwin/xinayu/server/config/HttpClientConfig.java b/xianyu-server/src/main/java/top/biwin/xinayu/server/config/HttpClientConfig.java
index 69a43f6..a095368 100644
--- a/xianyu-server/src/main/java/top/biwin/xinayu/server/config/HttpClientConfig.java
+++ b/xianyu-server/src/main/java/top/biwin/xinayu/server/config/HttpClientConfig.java
@@ -85,6 +85,11 @@ public class HttpClientConfig {
      */
     @Bean
     public ObjectMapper objectMapper() {
-        return new ObjectMapper();
+        ObjectMapper mapper = new ObjectMapper();
+        // 注册 JavaTimeModule 以支持 Java 8 时间类型 (LocalDateTime 等)
+        mapper.registerModule(new com.fasterxml.jackson.datatype.jsr310.JavaTimeModule());
+        // 禁用将日期写为时间戳，使其序列化为 ISO 格式字符串
+        mapper.disable(com.fasterxml.jackson.databind.SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
+        return mapper;
     }
 }
diff --git a/xianyu-server/src/main/java/top/biwin/xinayu/server/controller/KeywordController.java b/xianyu-server/src/main/java/top/biwin/xinayu/server/controller/KeywordController.java
index 61b2854..e3a40b8 100644
--- a/xianyu-server/src/main/java/top/biwin/xinayu/server/controller/KeywordController.java
+++ b/xianyu-server/src/main/java/top/biwin/xinayu/server/controller/KeywordController.java
@@ -1,9 +1,13 @@
 package top.biwin.xinayu.server.controller;
 
+import cn.hutool.core.bean.BeanUtil;
+import cn.hutool.core.bean.copier.CopyOptions;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 import top.biwin.xianyu.core.entity.AiReplySettingEntity;
@@ -12,6 +16,7 @@ import top.biwin.xianyu.core.entity.KeywordEntity;
 import top.biwin.xianyu.core.repository.AiReplySettingRepository;
 import top.biwin.xianyu.core.repository.GoofishAccountRepository;
 import top.biwin.xianyu.core.repository.KeywordRepository;
+import top.biwin.xinayu.common.dto.request.AiSettingRequest;
 import top.biwin.xinayu.common.dto.response.KeywordResponse;
 
 import java.util.List;
@@ -47,6 +52,26 @@ public class KeywordController {
         return ResponseEntity.ok(settings.stream().collect(Collectors.toMap(AiReplySettingEntity::getGoofishId, s -> s)));
     }
 
+    @GetMapping("/ai-reply-settings/{accountId}")
+    public ResponseEntity<AiReplySettingEntity> getAiSetting(@PathVariable String accountId) {
+        return ResponseEntity.ok(aiReplySettingRepository.findById(accountId).orElse(null));
+    }
+
+    @PutMapping("/ai-reply-settings/{accountId}")
+    public ResponseEntity<AiReplySettingEntity> upsertAiSetting(@PathVariable String accountId, @RequestBody AiSettingRequest request) {
+        // Upsert 逻辑：存在则更新，不存在则创建
+        AiReplySettingEntity entity = aiReplySettingRepository.findById(accountId)
+                .orElseGet(() -> {
+                    // 不存在时创建新实体
+                    AiReplySettingEntity newEntity = new AiReplySettingEntity();
+                    newEntity.setGoofishId(accountId);
+                    return newEntity;
+                });
+        // 忽略 null 值，防止前端未传的字段覆盖已有值或默认值
+        BeanUtil.copyProperties(request, entity, CopyOptions.create().setIgnoreNullValue(true));
+        return ResponseEntity.ok(aiReplySettingRepository.save(entity));
+    }
+
     @GetMapping("/keywords-with-item-id/{gid}")
     public ResponseEntity<List<KeywordResponse>> getKeywordsWithItemId(@PathVariable Long gid) {
 
diff --git a/xianyu-server/src/main/java/top/biwin/xinayu/server/exception/AuthenticationExceptionHandler.java b/xianyu-server/src/main/java/top/biwin/xinayu/server/exception/AuthenticationExceptionHandler.java
index 18dc0f6..81e85c3 100644
--- a/xianyu-server/src/main/java/top/biwin/xinayu/server/exception/AuthenticationExceptionHandler.java
+++ b/xianyu-server/src/main/java/top/biwin/xinayu/server/exception/AuthenticationExceptionHandler.java
@@ -1,17 +1,11 @@
 package top.biwin.xinayu.server.exception;
 
-import org.springframework.http.HttpStatus;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.ResponseEntity;
-import org.springframework.security.authentication.BadCredentialsException;
-import org.springframework.security.core.userdetails.UsernameNotFoundException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
 import top.biwin.xinayu.common.dto.response.BaseResponse;
 
-import java.time.LocalDateTime;
-import java.util.HashMap;
-import java.util.Map;
-
 /**
  * 全局异常处理器
  * 统一处理认证授权相关的异常，返回友好的 JSON 错误响应
@@ -34,23 +28,25 @@ import java.util.Map;
  * @author wangli
  * @since 2026-01-21
  */
+@Slf4j
 @RestControllerAdvice
 public class AuthenticationExceptionHandler {
 
-  /**
-   * 处理未知异常
-   * <p>
-   * 触发场景：
-   * - 其他未被捕获的异常
-   *
-   * @param ex 异常对象
-   * @return ResponseEntity<BaseResponse> 错误响应
-   */
-  @ExceptionHandler(Exception.class)
-  public ResponseEntity<BaseResponse> handleException(Exception ex) {
-    return ResponseEntity.ok(BaseResponse.builder()
-        .success(false)
-        .message(ex.getMessage())
-        .build());
-  }
+    /**
+     * 处理未知异常
+     * <p>
+     * 触发场景：
+     * - 其他未被捕获的异常
+     *
+     * @param ex 异常对象
+     * @return ResponseEntity<BaseResponse> 错误响应
+     */
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<BaseResponse> handleException(Exception ex) {
+        log.error("发生异常：{}", ex.getMessage(), ex);
+        return ResponseEntity.ok(BaseResponse.builder()
+                .success(false)
+                .message(ex.getMessage())
+                .build());
+    }
 }