diff --git a/gitea-webhook/pom.xml b/gitea-webhook/pom.xml
index 60c83aa..3351ff7 100644
--- a/gitea-webhook/pom.xml
+++ b/gitea-webhook/pom.xml
@@ -28,6 +28,13 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
+
+        <!-- https://mvnrepository.com/artifact/cn.hutool/hutool-http -->
+        <dependency>
+            <groupId>cn.hutool</groupId>
+            <artifactId>hutool-http</artifactId>
+            <version>5.8.27</version>
+        </dependency>
     </dependencies>
 
 </project>
\ No newline at end of file
diff --git a/gitea-webhook/src/main/java/cn/hezhaohui/webhook/service/FileService.java b/gitea-webhook/src/main/java/cn/hezhaohui/webhook/service/FileService.java
new file mode 100644
index 0000000..75832cf
--- /dev/null
+++ b/gitea-webhook/src/main/java/cn/hezhaohui/webhook/service/FileService.java
@@ -0,0 +1,33 @@
+package cn.hezhaohui.webhook.service;
+
+import cn.hutool.http.HttpUtil;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class FileService {
+    // repo: http://47.121.181.112:3000/wonder/lark-webhook-sender
+    // prefix: /raw/branch/main/
+    // raw: gitea-webhook/src/main/java/cn/hezhaohui/webhook/controller/HookController.java
+    // parse: http://47.121.181.112:3000/wonder/lark-webhook-sender/raw/branch/main/gitea-webhook/src/main/java/cn/hezhaohui/webhook/controller/HookController.java
+
+    public String getRawUrl(String repo, String raw) {
+        return repo +"/raw/branch/main/" +raw;
+    }
+
+    public String getRawContents(String repo, String raw) {
+        String url = getRawUrl(repo, raw);
+        String fileName = raw.substring(raw.lastIndexOf("/")+1);
+        String fileContent = HttpUtil.get(url);
+        return "[FileName]" + fileName + "\n" + "[FileContent]" + fileContent + "\n";
+    }
+
+    public String getAllFiles(String repo, List<String> files) {
+        StringBuilder sb = new StringBuilder();
+        for (String file : files) {
+            sb.append(getRawContents(repo, file));
+        }
+        return sb.toString();
+    }
+}