diff --git a/kicc-common/kicc-common-data/src/main/java/com/cloud/kicc/common/data/entity/KiccUser.java b/kicc-common/kicc-common-data/src/main/java/com/cloud/kicc/common/data/entity/KiccUser.java
index f41372fa..7b7018b8 100644
--- a/kicc-common/kicc-common-data/src/main/java/com/cloud/kicc/common/data/entity/KiccUser.java
+++ b/kicc-common/kicc-common-data/src/main/java/com/cloud/kicc/common/data/entity/KiccUser.java
@@ -21,6 +21,8 @@ import java.util.Collection;
 @EqualsAndHashCode(callSuper = false)
 public class KiccUser extends User {
 
+	private static final long serialVersionUID = 560L;
+
 	/**
 	 * 用户ID
 	 */
diff --git a/kicc-gateway/src/main/java/com/cloud/kicc/gateway/handler/ImageCodeHandler.java b/kicc-gateway/src/main/java/com/cloud/kicc/gateway/handler/ImageCodeHandler.java
index 02a25b50..b337b707 100644
--- a/kicc-gateway/src/main/java/com/cloud/kicc/gateway/handler/ImageCodeHandler.java
+++ b/kicc-gateway/src/main/java/com/cloud/kicc/gateway/handler/ImageCodeHandler.java
@@ -1,36 +1,23 @@
 package com.cloud.kicc.gateway.handler;
 
-import cn.hutool.core.codec.Base64;
-import cn.hutool.core.io.resource.StringResource;
-import cn.hutool.core.util.StrUtil;
 import cn.hutool.crypto.SecureUtil;
-import cn.hutool.http.HttpUtil;
 import com.cloud.kicc.common.core.constant.CacheConstants;
-import com.cloud.kicc.common.core.constant.CommonConstants;
 import com.cloud.kicc.common.core.constant.SecurityConstants;
-import com.pig4cloud.captcha.ArithmeticCaptcha;
 import com.pig4cloud.captcha.SpecCaptcha;
 import com.pig4cloud.captcha.base.Captcha;
 import lombok.RequiredArgsConstructor;
 import lombok.SneakyThrows;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.core.io.ByteArrayResource;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.data.redis.serializer.StringRedisSerializer;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
-import org.springframework.util.FastByteArrayOutputStream;
-import org.springframework.util.LinkedMultiValueMap;
-import org.springframework.util.MultiValueMap;
 import org.springframework.web.reactive.function.BodyInserters;
 import org.springframework.web.reactive.function.server.HandlerFunction;
 import org.springframework.web.reactive.function.server.ServerRequest;
 import org.springframework.web.reactive.function.server.ServerResponse;
 import reactor.core.publisher.Mono;
 
-import java.awt.*;
-import java.io.IOException;
-import java.nio.charset.Charset;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;