diff --git a/.gitea/workflows/demo.yaml b/.gitea/workflows/demo.yaml
index 7d520fe..0c55c55 100644
--- a/.gitea/workflows/demo.yaml
+++ b/.gitea/workflows/demo.yaml
@@ -1,19 +1,26 @@
 name: Gitea Actions Demo
-run-name: ${{ gitea.actor }} is testing out Gitea Actions 🚀
+
+name: Java CI
+
 on: [push]
 
 jobs:
-  Explore-Gitea-Actions:
-    runs-on: node20
+  build:
+    runs-on: ubuntu-22.04
     steps:
-      - run: echo "🎉 The job was automatically triggered by a ${{ gitea.event_name }} event."
-      - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by Gitea!"
-      - run: echo "🔎 The name of your branch is ${{ gitea.ref }} and your repository is ${{ gitea.repository }}."
-      - name: Check out repository code
+      # 1. 检出代码
+      - name: Checkout code
         uses: http://172.23.112.123:3000/actions/checkout@main
-      - run: echo "💡 The ${{ gitea.repository }} repository has been cloned to the runner."
-      - run: echo "🖥️ The workflow is now ready to test your code on the runner."
-      - name: List files in the repository
-        run: |
-          ls ${{ gitea.workspace }}
-      - run: echo "🍏 This job's status is ${{ job.status }}."
\ No newline at end of file
+
+      # 2. 设置 OpenJDK 17
+      - name: Set up JDK 17
+        uses: http://172.23.112.123:3000/actions/setup-java.git@main
+        with:
+          distribution: 'temurin'  # 使用 Eclipse Temurin（OpenJDK 发行版）
+          java-version: '17'
+
+      # 3. 构建项目（假设使用 Maven）
+      - name: Build with Maven
+        run: mvn -h
+
+   
\ No newline at end of file