diff --git a/deploy.sh b/deploy.sh
index ff64aed..637f9cd 100755
--- a/deploy.sh
+++ b/deploy.sh
@@ -78,36 +78,89 @@ setup_go_proxy() {
 }
 
 # ----------------------------------------------------------
-# 4. 配置服务端口
+# 4. 生成 .env 配置文件
 # ----------------------------------------------------------
-setup_port() {
+setup_env() {
     local port="${1:-9050}"
-    local compose_file="docker-compose.yml"
 
-    info "配置服务端口为 ${port}..."
-    sed -i "s/- \"8080:8080\"/- \"${port}:8080\"/" "$compose_file"
-    info "端口配置完成: ${port}"
+    if [ -f ".env" ]; then
+        warn ".env 文件已存在，跳过生成"
+        # 确保端口是最新的
+        if grep -q "^PORT=" .env; then
+            sed -i "s/^PORT=.*/PORT=${port}/" .env
+        else
+            echo "PORT=${port}" >> .env
+        fi
+        return
+    fi
+
+    info "生成 .env 配置文件..."
+
+    # 生成随机 MySQL 密码
+    local mysql_password
+    mysql_password=$(openssl rand -base64 16 | tr -dc 'a-zA-Z0-9' | head -c 20)
+
+    cat > .env <<EOF
+# Server
+PORT=${port}
+GIN_MODE=release
+SESSION_SECRET=
+
+# Data directory
+DATA_DIR=data
+
+# MySQL
+MYSQL_HOST=mysql
+MYSQL_PORT=3306
+MYSQL_USER=root
+MYSQL_PASSWORD=${mysql_password}
+MYSQL_DATABASE=pr_helper
+EOF
+
+    info ".env 文件已生成"
+    info "MySQL 密码: ${mysql_password}"
+    warn "请妥善保管 .env 文件中的数据库密码！"
 }
 
 # ----------------------------------------------------------
 # 5. 构建并启动服务
 # ----------------------------------------------------------
 build_and_start() {
+    local port="${1:-9050}"
+
     info "构建 Docker 镜像（首次可能需要几分钟）..."
     docker compose build
 
     info "启动服务..."
     docker compose up -d
 
-    info "等待服务启动..."
+    info "等待 MySQL 就绪..."
+    local retries=30
+    while [ $retries -gt 0 ]; do
+        if docker compose exec -T mysql mysqladmin ping -h localhost --silent 2>/dev/null; then
+            info "MySQL 就绪"
+            break
+        fi
+        retries=$((retries - 1))
+        sleep 2
+    done
+
+    if [ $retries -eq 0 ]; then
+        warn "MySQL 启动超时，继续等待应用自行重连..."
+        sleep 10
+    fi
+
+    info "等待应用启动..."
     sleep 3
 
     if docker compose ps | grep -q "running\|Up"; then
         info "=========================================="
         info "  PR-Helper 部署成功！"
         info "=========================================="
-        info "访问地址: http://$(hostname -I | awk '{print $1}'):${PORT:-9050}"
-        info "本地访问: http://localhost:${PORT:-9050}"
+        info "访问地址: http://$(hostname -I | awk '{print $1}'):${port}"
+        info "本地访问: http://localhost:${port}"
+        info ""
+        info "数据库配置: .env"
         info ""
         info "常用命令:"
         info "  查看日志:  docker compose logs -f"
@@ -124,7 +177,6 @@ build_and_start() {
 # ----------------------------------------------------------
 main() {
     local port="${1:-9050}"
-    export PORT="$port"
 
     info "开始部署 PR-Helper..."
     info "目标端口: ${port}"
@@ -132,8 +184,8 @@ main() {
     check_docker
     setup_docker_mirror
     setup_go_proxy
-    setup_port "$port"
-    build_and_start
+    setup_env "$port"
+    build_and_start "$port"
 }
 
 main "$@"