diff --git a/microservices-modules/microservices-modules-zone/src/main/java/com/microservices/zone/resource/service/impl/AiResourceParseServiceImpl.java b/microservices-modules/microservices-modules-zone/src/main/java/com/microservices/zone/resource/service/impl/AiResourceParseServiceImpl.java
index 42f099778..1c25ab913 100644
--- a/microservices-modules/microservices-modules-zone/src/main/java/com/microservices/zone/resource/service/impl/AiResourceParseServiceImpl.java
+++ b/microservices-modules/microservices-modules-zone/src/main/java/com/microservices/zone/resource/service/impl/AiResourceParseServiceImpl.java
@@ -22,6 +22,7 @@ import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
 import org.apache.commons.compress.archivers.zip.ZipArchiveInputStream;
 import org.apache.commons.compress.archivers.zip.ZipFile;
 
+import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
@@ -162,13 +163,13 @@ public class AiResourceParseServiceImpl implements IAiResourceParseService {
     }
 
     private String readEntryContent(ZipArchiveInputStream zais) throws IOException {
-        StringBuilder sb = new StringBuilder();
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
         byte[] buffer = new byte[4096];
         int len;
         while ((len = zais.read(buffer)) > 0) {
-            sb.append(new String(buffer, 0, len, StandardCharsets.UTF_8));
+            baos.write(buffer, 0, len);
         }
-        return sb.toString();
+        return new String(baos.toByteArray(), StandardCharsets.UTF_8);
     }
 
     @Override
@@ -285,13 +286,13 @@ public class AiResourceParseServiceImpl implements IAiResourceParseService {
 
     private String readZipEntryContent(ZipFile zf, ZipArchiveEntry entry) throws IOException {
         try (InputStream is = zf.getInputStream(entry)) {
-            StringBuilder sb = new StringBuilder();
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
             byte[] buffer = new byte[4096];
             int len;
             while ((len = is.read(buffer)) > 0) {
-                sb.append(new String(buffer, 0, len, StandardCharsets.UTF_8));
+                baos.write(buffer, 0, len);
             }
-            return sb.toString();
+            return new String(baos.toByteArray(), StandardCharsets.UTF_8);
         }
     }