diff --git a/smart-admin-api-java17-springboot3/sa-base/src/main/java/net/lab1024/sa/base/common/util/SmartResponseUtil.java b/smart-admin-api-java17-springboot3/sa-base/src/main/java/net/lab1024/sa/base/common/util/SmartResponseUtil.java
index 3ce4cc08..2594fa6e 100644
--- a/smart-admin-api-java17-springboot3/sa-base/src/main/java/net/lab1024/sa/base/common/util/SmartResponseUtil.java
+++ b/smart-admin-api-java17-springboot3/sa-base/src/main/java/net/lab1024/sa/base/common/util/SmartResponseUtil.java
@@ -9,8 +9,10 @@ import org.springframework.http.MediaType;
 import org.springframework.http.MediaTypeFactory;
 
 import java.io.IOException;
-import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+
+import static cn.hutool.core.util.CharsetUtil.UTF_8;
 
 /**
  * 返回工具栏
@@ -27,8 +29,8 @@ public class SmartResponseUtil {
 
     public static void write(HttpServletResponse response, ResponseDTO<?> responseDTO) {
         // 重置response
-        response.setContentType("application/json");
-        response.setCharacterEncoding("utf-8");
+        response.setContentType(MediaType.APPLICATION_JSON_VALUE);
+        response.setCharacterEncoding(UTF_8);
 
         try {
             response.getWriter().write(JSON.toJSONString(responseDTO));
@@ -44,20 +46,15 @@ public class SmartResponseUtil {
     }
 
     public static void setDownloadFileHeader(HttpServletResponse response, String fileName, Long fileSize) {
-        response.setCharacterEncoding("utf-8");
-        try {
-            if (fileSize != null) {
-                response.setHeader(HttpHeaders.CONTENT_LENGTH, String.valueOf(fileSize));
-            }
+        response.setCharacterEncoding(UTF_8);
+        if (fileSize != null) {
+            response.setHeader(HttpHeaders.CONTENT_LENGTH, String.valueOf(fileSize));
+        }
 
-            if (SmartStringUtil.isNotEmpty(fileName)) {
-                response.setHeader(HttpHeaders.CONTENT_TYPE, MediaTypeFactory.getMediaType(fileName).orElse(MediaType.APPLICATION_OCTET_STREAM) + ";charset=utf-8");
-                response.setHeader(HttpHeaders.CONTENT_DISPOSITION, "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8").replaceAll("\\+", "%20"));
-                response.setHeader(HttpHeaders.ACCESS_CONTROL_EXPOSE_HEADERS, HttpHeaders.CONTENT_DISPOSITION);
-            }
-        } catch (UnsupportedEncodingException e) {
-            log.error(e.getMessage(), e);
-            throw new RuntimeException(e);
+        if (SmartStringUtil.isNotEmpty(fileName)) {
+            response.setHeader(HttpHeaders.CONTENT_TYPE, MediaTypeFactory.getMediaType(fileName).orElse(MediaType.APPLICATION_OCTET_STREAM) + ";charset=utf-8");
+            response.setHeader(HttpHeaders.CONTENT_DISPOSITION, "attachment;filename=" + URLEncoder.encode(fileName, StandardCharsets.UTF_8).replaceAll("\\+", "%20"));
+            response.setHeader(HttpHeaders.ACCESS_CONTROL_EXPOSE_HEADERS, HttpHeaders.CONTENT_DISPOSITION);
         }
     }