update maven.yml to auto build and release to GitHub.

Author: GitHubNull

.github/workflows/maven.yml

@@ -18,12 +18,48 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
-    - name: Set up JDK 8
-      uses: actions/setup-java@v3
-      with:
-        java-version: '8'
-        distribution: 'temurin'
-        cache: maven
-    - name: Build with Maven
-      run: mvn -B package --file pom.xml
+
+      # 第一步：下载源码
+      - name: Checkout
+      - uses: actions/checkout@v3
+
+      # 第二步：打包构建
+      - name: Build
+        uses: actions/setup-java@v3
+        with:
+          java-version: '8'
+          distribution: 'temurin'
+          cache: maven
+      - run: mvn -B package --file pom.xml
+      - run: mkdir staging && cp target/*full.jar staging
+
+      # 第三步：发布 Release
+      - name: Create Release
+        id: create_release
+        uses: actions/create-release@master
+        env:
+          GITHUB_TOKEN: ${{ secrets.TOKEN }} # 之前GitHub添加的Token
+        with:
+          tag_name: ${{ github.ref }} # (tag)标签名称
+          release_name: Release ${{ github.ref }}
+          draft: false # 是否是草稿
+          prerelease: true # 是否是预发布
+      # 第四步： 设置 jobs Maven pom 版本环境变量
+      - name: Set Release version env variable
+        run: |
+          echo "RELEASE_VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)" >> $GITHUB_ENV
+      - name: "Build & test"
+        run: |
+          echo "done!"
+
+      # 第五步：上传构建结果到 Release
+      - name: Upload Release Asset
+        id: upload-release
+      - uses: "marvinpinto/action-automatic-releases@latest"
+        with:
+          repo_token: ${{ secrets.TOKEN }}
+          automatic_release_tag: ${{ env.RELEASE_VERSION }}
+          prerelease: false
+          title: Release ${{ env.RELEASE_VERSION }}
+          files: |
+            staging/*.jar