diff --git a/core/core-backend/src/main/java/io/dataease/share/interceptor/LinkInterceptor.java b/core/core-backend/src/main/java/io/dataease/share/interceptor/LinkInterceptor.java
index 8e72a8c014..299342e5a2 100644
--- a/core/core-backend/src/main/java/io/dataease/share/interceptor/LinkInterceptor.java
+++ b/core/core-backend/src/main/java/io/dataease/share/interceptor/LinkInterceptor.java
@@ -42,7 +42,7 @@ public class LinkInterceptor implements HandlerInterceptor {
 
                 String requestURI = ServletUtils.request().getRequestURI();
                 if (StringUtils.startsWith(requestURI, WhitelistUtils.getContextPath())) {
-                    requestURI = requestURI.replaceFirst(WhitelistUtils.getContextPath(), "");
+                    requestURI = StringUtils.replaceOnce(requestURI, WhitelistUtils.getContextPath(), "");
                 }
                 if (StringUtils.startsWith(requestURI, AuthConstant.DE_API_PREFIX)) {
                     requestURI = requestURI.replaceFirst(AuthConstant.DE_API_PREFIX, "");
diff --git a/sdk/common/src/main/java/io/dataease/utils/FileUtils.java b/sdk/common/src/main/java/io/dataease/utils/FileUtils.java
index 8a1fbd4268..dbe63582bb 100644
--- a/sdk/common/src/main/java/io/dataease/utils/FileUtils.java
+++ b/sdk/common/src/main/java/io/dataease/utils/FileUtils.java
@@ -74,8 +74,8 @@ public class FileUtils {
         return filename;
     }
 
-    public static void validateExist(String path) {
-        File dir = new File(path);
+    public static void validateExist(String path) throws IOException {
+        File dir = new File(path).getCanonicalFile();
         if (dir.exists()) return;
         dir.mkdirs();
     }
diff --git a/sdk/common/src/main/java/io/dataease/utils/WhitelistUtils.java b/sdk/common/src/main/java/io/dataease/utils/WhitelistUtils.java
index 388529ce39..d4b0ee15a7 100644
--- a/sdk/common/src/main/java/io/dataease/utils/WhitelistUtils.java
+++ b/sdk/common/src/main/java/io/dataease/utils/WhitelistUtils.java
@@ -55,7 +55,7 @@ public class WhitelistUtils {
     public static boolean match(String requestURI) {
         invalidUrl(requestURI);
         if (StringUtils.startsWith(requestURI, getContextPath())) {
-            requestURI = requestURI.replaceFirst(getContextPath(), "");
+            requestURI = StringUtils.replaceOnce(requestURI, getContextPath(), "");
         }
         if (StringUtils.startsWith(requestURI, AuthConstant.DE_API_PREFIX)) {
             requestURI = requestURI.replaceFirst(AuthConstant.DE_API_PREFIX, "");