311 lines
7.1 KiB
Bash
Executable File
311 lines
7.1 KiB
Bash
Executable File
#!/bin/bash
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# ==================== 生产配置区：按服务器实际路径修改 ====================
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# JDK 安装目录。留空时使用服务器已有 JAVA_HOME；仍为空时使用 PATH 中的 java。
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BACKEND_JAVA_HOME=""
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# 后端 Jar 所在目录。生产目录结构为：启动脚本在外层，Jar 位于 backend/ruoyi-admin.jar。
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APP_HOME="${SCRIPT_DIR}/backend"
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# 后端 Jar 文件名。
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JAR_NAME="ruoyi-admin.jar"
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# Spring Profile。
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SPRING_PROFILES_ACTIVE="uat"
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# JVM 参数。
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JAVA_OPTS="-Duser.timezone=Asia/Shanghai -Xms512m -Xmx1024m -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError"
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# 额外应用启动参数，例如：--server.port=8080
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APP_ARGS=""
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# 停止进程等待秒数。
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STOP_WAIT_SECONDS=30
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# ==================== 以下为脚本逻辑，一般不需要修改 ====================
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if [[ "${APP_HOME}" != /* ]]; then
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APP_HOME="${SCRIPT_DIR}/${APP_HOME}"
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fi
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JAR_PATH="${APP_HOME}/${JAR_NAME}"
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RELATIVE_JAR_PATH=""
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if [[ "${APP_HOME}" == "${SCRIPT_DIR}/"* ]]; then
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RELATIVE_JAR_PATH="${APP_HOME#${SCRIPT_DIR}/}/${JAR_NAME}"
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fi
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LOG_DIR="${APP_HOME}/logs"
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CONSOLE_LOG="${LOG_DIR}/backend-console.log"
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PID_FILE="${LOG_DIR}/backend-java.pid"
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APP_MARKER="-Dccdi.backend.prod.home=${APP_HOME}"
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JAVA_CMD="java"
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timestamp() {
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date "+%Y-%m-%d %H:%M:%S"
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}
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log_info() {
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printf '[%s] %s\n' "$(timestamp)" "$1"
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}
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log_error() {
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printf '[%s] %s\n' "$(timestamp)" "$1" >&2
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}
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usage() {
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cat <<'EOF'
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用法: ./start-java-backend-prod.sh [start|stop|restart|status|logs]
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默认动作:
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start 先关闭旧后端进程，再启动生产后端 Jar，启动成功后持续输出控制台日志
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常用配置:
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配置统一写在脚本顶部“生产配置区”，包括 BACKEND_JAVA_HOME、APP_HOME、SPRING_PROFILES_ACTIVE、JAVA_OPTS。
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示例:
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./start-java-backend-prod.sh restart
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EOF
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}
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ensure_command() {
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local command_name="$1"
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if ! command -v "${command_name}" >/dev/null 2>&1; then
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log_error "缺少命令: ${command_name}"
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exit 1
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fi
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}
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resolve_java_cmd() {
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local configured_java_home="${BACKEND_JAVA_HOME}"
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if [[ -z "${configured_java_home}" ]]; then
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configured_java_home="${JAVA_HOME:-}"
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fi
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if [[ -n "${configured_java_home}" ]]; then
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configured_java_home="${configured_java_home%/}"
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if [[ ! -x "${configured_java_home}/bin/java" ]]; then
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log_error "配置的 JAVA_HOME 无效，未找到可执行文件: ${configured_java_home}/bin/java"
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exit 1
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fi
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export JAVA_HOME="${configured_java_home}"
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JAVA_CMD="${JAVA_HOME}/bin/java"
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else
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ensure_command "java"
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JAVA_CMD="java"
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fi
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log_info "使用 Java 命令: ${JAVA_CMD}"
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}
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get_process_table() {
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local process_table
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if ! process_table="$(ps -ef 2>/dev/null)"; then
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log_error "执行 ps -ef 失败，无法扫描旧进程"
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return 1
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fi
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printf '%s\n' "${process_table}"
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}
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is_managed_pid() {
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local pid="$1"
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if [[ -z "${pid}" ]] || ! kill -0 "${pid}" 2>/dev/null; then
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return 1
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fi
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local process_table
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if ! process_table="$(get_process_table)"; then
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return 1
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fi
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local line
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while IFS= read -r line; do
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set -- ${line}
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if [[ "${2:-}" == "${pid}" ]] && is_backend_process_line "${line}"; then
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return 0
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fi
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done <<<"${process_table}"
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return 1
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}
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is_backend_process_line() {
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local line="$1"
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[[ "${line}" != *"<defunct>"* ]] || return 1
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[[ "${line}" == *" -jar ${JAR_PATH}"* ]] && return 0
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[[ -n "${RELATIVE_JAR_PATH}" && "${line}" == *" -jar ${RELATIVE_JAR_PATH}"* ]]
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}
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collect_pids() {
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local all_pids=""
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local pid
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local process_table
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if ! process_table="$(get_process_table)"; then
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return 1
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fi
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if [[ -f "${PID_FILE}" ]]; then
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pid="$(cat "${PID_FILE}" 2>/dev/null || true)"
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if is_managed_pid "${pid}"; then
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all_pids="${all_pids} ${pid}"
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fi
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fi
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local line
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while IFS= read -r line; do
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set -- ${line}
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pid="${2:-}"
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if [[ "${pid}" =~ ^[0-9]+$ ]] && is_backend_process_line "${line}"; then
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all_pids="${all_pids} ${pid}"
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fi
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done <<<"${process_table}"
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local unique_pids=""
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for pid in ${all_pids}; do
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case " ${unique_pids} " in
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*" ${pid} "*) ;;
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*) unique_pids="${unique_pids} ${pid}" ;;
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esac
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done
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xargs <<<"${unique_pids}" 2>/dev/null || true
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}
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start_backend() {
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resolve_java_cmd
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if [[ ! -f "${JAR_PATH}" ]]; then
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log_error "未找到后端 Jar: ${JAR_PATH}"
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exit 1
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fi
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local running_pids
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running_pids="$(collect_pids)"
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if [[ -n "${running_pids}" ]]; then
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log_error "检测到后端已在运行: ${running_pids}"
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exit 1
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fi
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mkdir -p "${LOG_DIR}"
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printf '\n===== %s start =====\n' "$(timestamp)" >>"${CONSOLE_LOG}"
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local profile_arg=""
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if [[ -n "${SPRING_PROFILES_ACTIVE}" ]]; then
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profile_arg="--spring.profiles.active=${SPRING_PROFILES_ACTIVE}"
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fi
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log_info "开始启动后端 Jar: ${JAR_PATH}"
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nohup "${JAVA_CMD}" "${APP_MARKER}" ${JAVA_OPTS} -jar "${JAR_PATH}" ${profile_arg} ${APP_ARGS} >>"${CONSOLE_LOG}" 2>&1 &
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echo $! >"${PID_FILE}"
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sleep 3
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local starter_pid
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starter_pid="$(cat "${PID_FILE}" 2>/dev/null || true)"
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if [[ -z "${starter_pid}" ]] || ! kill -0 "${starter_pid}" 2>/dev/null; then
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log_error "启动命令未保持运行，请检查日志: ${CONSOLE_LOG}"
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exit 1
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fi
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log_info "后端启动完成，PID: ${starter_pid}"
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}
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stop_backend() {
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local pids
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pids="$(collect_pids)"
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if [[ -z "${pids}" ]]; then
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log_info "未发现运行中的后端进程"
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rm -f "${PID_FILE}"
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return 0
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fi
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log_info "准备停止后端进程: ${pids}"
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local pid
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for pid in ${pids}; do
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kill -TERM "${pid}" 2>/dev/null || true
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done
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local elapsed=0
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local remaining_pids="${pids}"
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while [[ -n "${remaining_pids}" && "${elapsed}" -lt "${STOP_WAIT_SECONDS}" ]]; do
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sleep 1
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elapsed=$((elapsed + 1))
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remaining_pids=""
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for pid in ${pids}; do
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if kill -0 "${pid}" 2>/dev/null; then
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remaining_pids="${remaining_pids} ${pid}"
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fi
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done
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remaining_pids="$(xargs <<<"${remaining_pids}" 2>/dev/null || true)"
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done
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if [[ -n "${remaining_pids}" ]]; then
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log_info "仍有进程未退出，执行强制停止: ${remaining_pids}"
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for pid in ${remaining_pids}; do
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kill -KILL "${pid}" 2>/dev/null || true
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done
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fi
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rm -f "${PID_FILE}"
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log_info "后端停止完成"
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}
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status_backend() {
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local pids
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pids="$(collect_pids)"
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if [[ -n "${pids}" ]]; then
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log_info "后端正在运行，进程: ${pids}"
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return 0
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fi
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log_info "后端未运行"
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}
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follow_logs() {
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mkdir -p "${LOG_DIR}"
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touch "${CONSOLE_LOG}"
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log_info "持续输出日志中，按 Ctrl+C 仅退出日志查看，不会停止后端进程"
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tail -n 200 -F "${CONSOLE_LOG}"
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}
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start_action() {
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stop_backend
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start_backend
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follow_logs
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}
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main() {
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local action="${1:-start}"
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case "${action}" in
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start)
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start_action
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;;
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stop)
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stop_backend
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;;
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restart)
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start_action
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;;
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status)
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status_backend
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;;
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logs)
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follow_logs
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;;
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-h|--help|help)
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usage
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;;
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*)
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usage
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exit 1
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;;
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esac
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}
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main "$@"
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