diff --git a/sop-common/sop-gateway-common/src/main/java/com/gitee/sop/gatewaycommon/gateway/filter/IndexFilter.java b/sop-common/sop-gateway-common/src/main/java/com/gitee/sop/gatewaycommon/gateway/filter/IndexFilter.java
index 2e275d93..4e6f6654 100644
--- a/sop-common/sop-gateway-common/src/main/java/com/gitee/sop/gatewaycommon/gateway/filter/IndexFilter.java
+++ b/sop-common/sop-gateway-common/src/main/java/com/gitee/sop/gatewaycommon/gateway/filter/IndexFilter.java
@@ -80,15 +80,16 @@ public class IndexFilter implements WebFilter {
             if (request.getMethod() == HttpMethod.POST) {
                 ServerRequest serverRequest = ServerWebExchangeUtil.createReadBodyRequest(exchange);
                 // 读取请求体中的内容
-                Mono<?> modifiedBody = serverRequest.bodyToMono(String.class)
-                        .flatMap(body -> {
+                Mono<?> modifiedBody = serverRequest.bodyToMono(byte[].class)
+                        .flatMap(data -> {
+                            String body = new String(data, SopConstants.CHARSET_UTF8);
                             // 构建ApiParam
                             ApiParam apiParam = ServerWebExchangeUtil.getApiParam(exchange, body);
                             // 签名验证
                             doValidate(exchange, apiParam);
-                            return Mono.just(body);
+                            return Mono.just(data);
                         });
-                BodyInserter bodyInserter = BodyInserters.fromPublisher(modifiedBody, (Class) String.class);
+                BodyInserter bodyInserter = BodyInserters.fromPublisher(modifiedBody, (Class)byte[].class);
                 HttpHeaders headers = new HttpHeaders();
                 headers.putAll(exchange.getRequest().getHeaders());
 
diff --git a/sop-example/sop-story/sop-story-web/src/main/java/com/gitee/sop/storyweb/controller/FileUploadDemoController.java b/sop-example/sop-story/sop-story-web/src/main/java/com/gitee/sop/storyweb/controller/FileUploadDemoController.java
index e5854db1..e25608b9 100644
--- a/sop-example/sop-story/sop-story-web/src/main/java/com/gitee/sop/storyweb/controller/FileUploadDemoController.java
+++ b/sop-example/sop-story/sop-story-web/src/main/java/com/gitee/sop/storyweb/controller/FileUploadDemoController.java
@@ -14,8 +14,10 @@ import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.multipart.MultipartFile;
 
 import javax.servlet.http.HttpServletRequest;
+import java.io.File;
 import java.io.IOException;
 import java.util.Collection;
+import java.util.Optional;
 
 /**
  * 演示文件上传
@@ -70,6 +72,25 @@ public class FileUploadDemoController {
         return result;
     }
 
+    @ApiMapping(value = "demo.file.upload3")
+    public FileUploadResult file3(FileUploadParam2 param, HttpServletRequest request) {
+        System.out.println(param.getRemark());
+        FileUploadResult result = new FileUploadResult();
+        // 获取上传的文件
+        Collection<MultipartFile> uploadFiles = UploadUtil.getUploadFiles(request);
+        Optional<MultipartFile> first = uploadFiles.stream().findFirst();
+        if (first.isPresent()) {
+            MultipartFile multipartFile = first.get();
+            try {
+                String path = System.getProperty("user.dir");
+                multipartFile.transferTo(new File(path + "/img_"+System.currentTimeMillis()+".png"));
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+        return result;
+    }
+
     private FileUploadResult.FileMeta buildFileMeta(MultipartFile multipartFile) {
         // 文件名
         String fileName = multipartFile.getOriginalFilename();
diff --git a/sop-test/src/main/resources/img.png b/sop-test/src/main/resources/img.png
new file mode 100644
index 00000000..821d3a66
Binary files /dev/null and b/sop-test/src/main/resources/img.png differ
diff --git a/sop-test/src/test/java/com/gitee/sop/test/AllInOneTest.java b/sop-test/src/test/java/com/gitee/sop/test/AllInOneTest.java
index 5f7c4d1d..a34f26de 100644
--- a/sop-test/src/test/java/com/gitee/sop/test/AllInOneTest.java
+++ b/sop-test/src/test/java/com/gitee/sop/test/AllInOneTest.java
@@ -239,6 +239,29 @@ public class AllInOneTest extends TestBase {
         client.execute(requestBuilder);
     }
 
+    /**
+     * 演示文件上传
+     */
+    public void testFile3() {
+        Client client = new Client(url, appId, privateKey);
+        String root = System.getProperty("user.dir");
+        Client.RequestBuilder requestBuilder = new Client.RequestBuilder()
+                .method("demo.file.upload3")
+                .version("1.0")
+                .bizContent(new BizContent().add("remark", "test file upload"))
+                // 添加文件
+                .addFile("image", new File(root + "/src/main/resources/img.png"))
+                .callback((requestInfo, responseData) -> {
+                    System.out.println(responseData);
+                    JSONObject jsonObject = JSON.parseObject(responseData);
+                    JSONObject data = jsonObject.getJSONObject(requestInfo.getDataNode());
+                    Assert.assertEquals(data.getString("code"), "10000");
+                })
+                ;
+
+        client.execute(requestBuilder);
+    }
+
     /**
      * 下载文件
      */