fix: Maven检测优先用系统已安装（command -v mvn），下载源换阿里云镜像

.gitea/workflows/release.yml

@@ -21,21 +21,38 @@ jobs:
           fi
           export JAVA_HOME
           echo "JAVA_HOME=$JAVA_HOME" >> $GITHUB_ENV
-          echo "PATH=/opt/maven/bin:$JAVA_HOME/bin:$PATH" >> $GITHUB_ENV
-          echo "Using JAVA_HOME=$JAVA_HOME"
-          java -version
+          echo "JAVA_HOME=$JAVA_HOME"
 
-          # 2) 确保 Maven 可用 —— 用官方二进制包安装，绕开 dnf 拉 java-17 与已装 JDK 的冲突
-          if [ ! -x /opt/maven/bin/mvn ]; then
-            echo "Maven not found, downloading official binary..."
+          # 2) 确保 Maven 可用 —— 优先用系统已安装的（sdkman/dnf），没有才下载二进制
+          MVN_BIN=""
+          if command -v mvn >/dev/null 2>&1; then
+            MVN_BIN=$(command -v mvn)
+            echo "Maven found in PATH: $MVN_BIN"
+          elif [ -x /opt/maven/bin/mvn ]; then
+            MVN_BIN=/opt/maven/bin/mvn
+            echo "Maven found at /opt/maven"
+          fi
+
+          if [ -z "$MVN_BIN" ]; then
+            echo "Maven not found, downloading binary (aliyun mirror)..."
             MAVEN_VER=3.9.9
             cd /tmp
-            curl -fsSL "https://archive.apache.org/dist/maven/maven-3/${MAVEN_VER}/binaries/apache-maven-${MAVEN_VER}-bin.tar.gz" -o maven.tgz
+            curl -fsSL --connect-timeout 15 --max-time 120 \
+              "https://mirrors.aliyun.com/apache/maven/maven-3/${MAVEN_VER}/binaries/apache-maven-${MAVEN_VER}-bin.tar.gz" \
+              -o maven.tgz || \
+            curl -fsSL --connect-timeout 15 --max-time 120 \
+              "https://dlcdn.apache.org/maven/maven-3/${MAVEN_VER}/binaries/apache-maven-${MAVEN_VER}-bin.tar.gz" \
+              -o maven.tgz
             tar -xzf maven.tgz -C /opt
             ln -sfn /opt/apache-maven-${MAVEN_VER} /opt/maven
             rm -f maven.tgz
+            MVN_BIN=/opt/maven/bin/mvn
           fi
-          /opt/maven/bin/mvn -version
+
+          # 把 Maven 所在目录加入 PATH
+          MVN_DIR=$(dirname "$MVN_BIN")
+          echo "PATH=$MVN_DIR:$JAVA_HOME/bin:$PATH" >> $GITHUB_ENV
+          "$MVN_BIN" -version
 
       - name: Build with Maven
         run: mvn -B clean package -DskipTests