diff --git a/3rdpart/ZLToolKit b/3rdpart/ZLToolKit
index 45cf7795..7923e964 160000
--- a/3rdpart/ZLToolKit
+++ b/3rdpart/ZLToolKit
@@ -1 +1 @@
-Subproject commit 45cf7795835625d07b4de33b25f151330fccc769
+Subproject commit 7923e9646f1779d8ce8f256c7f9c0a5bee69e7d7
diff --git a/src/Http/HttpBody.cpp b/src/Http/HttpBody.cpp
index f2e28efa..7dec29f1 100644
--- a/src/Http/HttpBody.cpp
+++ b/src/Http/HttpBody.cpp
@@ -10,6 +10,7 @@
 
 #include "HttpBody.h"
 #include "Util/util.h"
+#include "Util/File.h"
 #include "Util/uv_errno.h"
 #include "Util/logger.h"
 #include "HttpClient.h"
@@ -46,14 +47,14 @@ Buffer::Ptr HttpStringBody::readData(size_t size) {
 
 HttpFileBody::HttpFileBody(const string &filePath){
     std::shared_ptr<FILE> fp(fopen(filePath.data(), "rb"), [](FILE *fp) {
-        if(fp){
+        if (fp) {
             fclose(fp);
         }
     });
-    if(!fp){
-        init(fp,0,0);
-    }else{
-        init(fp,0,HttpMultiFormBody::fileSize(fp.get()));
+    if (!fp) {
+        init(fp, 0, 0);
+    } else {
+        init(fp, 0, File::fileSize(fp.get()));
     }
 }
 
@@ -61,15 +62,7 @@ HttpFileBody::HttpFileBody(const std::shared_ptr<FILE> &fp, size_t offset, size_
     init(fp,offset,max_size);
 }
 
-#if defined(_WIN32) || defined(_WIN64)
-    #define fseek64 _fseeki64
-    #define ftell64 _ftelli64
-#else
-    #define fseek64 fseek
-    #define ftell64 ftell
-#endif
-
-void HttpFileBody::init(const std::shared_ptr<FILE> &fp,size_t offset, size_t max_size){
+void HttpFileBody::init(const std::shared_ptr<FILE> &fp, size_t offset, size_t max_size) {
     _fp = fp;
     _max_size = max_size;
 #ifdef ENABLE_MMAP
@@ -169,7 +162,7 @@ HttpMultiFormBody::HttpMultiFormBody(const HttpArgs &args,const string &filePath
     if(!fp){
         throw std::invalid_argument(StrPrinter << "open file failed：" << filePath << " " << get_uv_errmsg());
     }
-    _fileBody = std::make_shared<HttpFileBody>(fp, 0, fileSize(fp.get()));
+    _fileBody = std::make_shared<HttpFileBody>(fp, 0, File::fileSize(fp.get()));
 
     auto fileName = filePath;
     auto pos = filePath.rfind('/');
@@ -222,14 +215,6 @@ string HttpMultiFormBody::multiFormBodySuffix(const string &boundary){
     return std::move(body);
 }
 
-size_t HttpMultiFormBody::fileSize(FILE *fp) {
-    auto current = ftell64(fp);
-    fseek64(fp, 0L, SEEK_END); /* 定位到文件末尾 */
-    auto end = ftell64(fp); /* 得到文件大小 */
-    fseek64(fp, current, SEEK_SET);
-    return end - current;
-}
-
 string HttpMultiFormBody::multiFormContentType(const string &boundary){
     return StrPrinter << "multipart/form-data; boundary=" << boundary;
 }
diff --git a/src/Http/HttpBody.h b/src/Http/HttpBody.h
index fa097cb7..1f974fa8 100644
--- a/src/Http/HttpBody.h
+++ b/src/Http/HttpBody.h
@@ -108,7 +108,7 @@ public:
      * @param offset 相对文件头的偏移量
      * @param max_size 最大读取字节数，未判断是否大于文件真实大小
      */
-    HttpFileBody(const std::shared_ptr<FILE> &fp,size_t offset,size_t max_size);
+    HttpFileBody(const std::shared_ptr<FILE> &fp, size_t offset, size_t max_size);
     HttpFileBody(const string &file_path);
     ~HttpFileBody() override = default;
 
@@ -149,7 +149,6 @@ public:
 public:
     static string multiFormBodyPrefix(const HttpArgs &args,const string &boundary,const string &fileName);
     static string multiFormBodySuffix(const string &boundary);
-    static size_t fileSize(FILE *fp);
     static string multiFormContentType(const string &boundary);
 
 private:
diff --git a/src/Http/HttpFileManager.cpp b/src/Http/HttpFileManager.cpp
index bb13376e..dec1cd0b 100644
--- a/src/Http/HttpFileManager.cpp
+++ b/src/Http/HttpFileManager.cpp
@@ -598,7 +598,7 @@ void HttpResponseInvokerImp::responseFile(const StrCaseMap &requestHeader,
     auto &strRange = const_cast<StrCaseMap &>(requestHeader)["Range"];
     size_t iRangeStart = 0;
     size_t iRangeEnd = 0;
-    size_t fileSize = HttpMultiFormBody::fileSize(fp.get());
+    size_t fileSize = File::fileSize(fp.get());
 
     int code;
     if (strRange.size() == 0) {