diff --git a/entry/src/main/cpp/FileAccessMethods.cpp b/entry/src/main/cpp/FileAccessMethods.cpp
index de62f69c8b1a4a9edf29b01233a19514729b542e..c63a591043d33b292eb1070db393b78e113f6895 100644
--- a/entry/src/main/cpp/FileAccessMethods.cpp
+++ b/entry/src/main/cpp/FileAccessMethods.cpp
@@ -25,6 +25,9 @@
 
 const int DOMAIN = 0xFF00;
 const char *TAG = "[FileAccessMethods]";
+const int BUFFER_SIZE = 256;
+const int READ_SIZE = 1000;
+const char *FILE_PATH = "/data/storage/el2/base/haps/entry/files/SplicePath.txt";
 // [Start napi_value]
 // entry/src/main/cpp/FileAccessMethods.cpp
 static napi_value TransferSandboxPath(napi_env env, napi_callback_info info) {
@@ -33,7 +36,7 @@ static napi_value TransferSandboxPath(napi_env env, napi_callback_info info) {
     napi_get_cb_info(env, info, &argc, argv, nullptr, nullptr);
     //Convert the sandbox path and the contents of the text to be written into C-side variables through the Node-API interface.
     size_t pathSize, contentsSize;
-    char pathBuf[256], contentsBuf[256];
+    char pathBuf[BUFFER_SIZE], contentsBuf[BUFFER_SIZE];
     // [Start get_path]
     napi_get_value_string_utf8(env, argv[0], pathBuf, sizeof(pathBuf), &pathSize);
     napi_get_value_string_utf8(env, argv[1], contentsBuf, sizeof(contentsBuf), &contentsSize);
@@ -64,11 +67,12 @@ static napi_value SplicePath(napi_env env, napi_callback_info info) {
     napi_get_cb_info(env, info, &argc, argv, nullptr, nullptr);
     //Splice the sandbox path according to the actual file location.
     size_t contentsSize;
-    // [Start path_buf]
-    char pathBuf[256] = "/data/storage/el2/base/haps/entry/files/SplicePath.txt";
+    // [Start path_buf] 
+    char pathBuf[READ_SIZE] = {0};
+    strncpy(pathBuf,FILE_PATH,READ_SIZE);
     // [End path_buf]
     //Convert the contents of the text to be written into C-side variables through the Node-API interface.
-    char contentsBuf[256];
+    char contentsBuf[BUFFER_SIZE];
     // [Start value_utf8]
     // [Start value_string]
     napi_get_value_string_utf8(env, argv[0], contentsBuf, sizeof(contentsBuf), &contentsSize);
@@ -102,7 +106,7 @@ static napi_value TransferResourceMgr(napi_env env, napi_callback_info info) {
     NativeResourceManager *mNativeResMgr = OH_ResourceManager_InitNativeResourceManager(env, argv[0]);
     // [End native_manage]
     size_t fileNameSize;
-    char fileNameBuf[256];
+    char fileNameBuf[BUFFER_SIZE];
     //Convert the passed-in file name into a C-side variable through the Node-API interface.
     napi_get_value_string_utf8(env, argv[1], fileNameBuf, sizeof(fileNameBuf), &fileNameSize);
     // [Start open_raw_file]
@@ -133,7 +137,7 @@ static napi_value WriteFileUsingPickerFd(napi_env env, napi_callback_info info)
 
     unsigned int fd = -1;
     size_t contentsSize;
-    char contentsBuf[256];
+    char contentsBuf[BUFFER_SIZE];
     // [Start uint_get]
     //Convert the incoming file descriptor and the contents to be written into the file into C-side variables.
     napi_get_value_uint32(env, argv[0], &fd);
@@ -174,7 +178,7 @@ static napi_value ReadFileUsingPickerFd(napi_env env, napi_callback_info info) {
     // [End uint32_env]
     // [Start buff_char]
     //Use the file operation function of the C standard library to read the file.
-    char buff[1000];
+    char buff[READ_SIZE];
     size_t buffSize = read(fd, buff, sizeof(buff));
     // [End buff_char]
     // [Start content_value]