diff --git a/.gitea/workflows/demo.yaml b/.gitea/workflows/demo.yaml
index 2d74f4d..0d8d338 100644
--- a/.gitea/workflows/demo.yaml
+++ b/.gitea/workflows/demo.yaml
@@ -86,6 +86,15 @@ jobs:
         run: npm --version
       - name: Run tests
         run: echo "npm test 成功，actions/github-script@v5 创建合并请求"
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin' # See 'Supported distributions' for available options
+          java-version: '21'
+      - name: Build with Maven
+        run: |
+          echo "mvn clean install -DskipTests"
+          mvn --version
       - 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 }}."