294 lines
7.1 KiB
Bash
294 lines
7.1 KiB
Bash
#!/bin/bash
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# ==============================================
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# Java应用管理脚本 v2.0
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# 功能：启动/停止/重启/状态检查/日志查看/升级/备份
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# ==============================================
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# --------------------------
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# 配置区（请根据实际情况修改）
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# --------------------------
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APP_NAME="snailjob-server" # 应用名称
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APP_DIR="../lib" # 应用目录（支持绝对路径）
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JAR_NAME="ruoyi-snailjob-server.jar" # JAR文件名
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JAVA_OPTS="-Xms256m -Xmx512m -XX:+UseG1GC -Dfile.encoding=UTF-8" # JVM参数
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LOG_FILE="${APP_DIR}/app.log" # 日志文件路径
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PID_FILE="${APP_DIR}/app.pid" # PID文件路径
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MAX_LOG_SIZE=10 # 日志轮转大小(MB)
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BACKUP_DIR="${APP_DIR}/backup" # 备份目录
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WAIT_STOP_TIMEOUT=30 # 停止等待超时(秒)
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# --------------------------
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# 初始化检查
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# --------------------------
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init_check() {
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# 检查Java环境
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if ! command -v java &> /dev/null; then
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echo "[ERROR] Java未安装！请先安装JDK"
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exit 1
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fi
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# 检查目录是否存在
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if [ ! -d "$APP_DIR" ]; then
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echo "[ERROR] 应用目录不存在: $APP_DIR"
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exit 1
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fi
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# 检查JAR文件是否存在
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if [ ! -f "${APP_DIR}/${JAR_NAME}" ]; then
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echo "[ERROR] JAR文件不存在: ${APP_DIR}/${JAR_NAME}"
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exit 1
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fi
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# 创建备份目录
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mkdir -p "$BACKUP_DIR"
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}
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# --------------------------
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# 日志轮转
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# --------------------------
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rotate_log() {
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if [ -f "$LOG_FILE" ]; then
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log_size=$(du -m "$LOG_FILE" | cut -f1)
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if [ "$log_size" -gt "$MAX_LOG_SIZE" ]; then
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echo "正在轮转日志文件..."
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timestamp=$(date +%Y%m%d%H%M%S)
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mv "$LOG_FILE" "${LOG_FILE}.$timestamp"
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gzip "${LOG_FILE}.$timestamp" -f
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mv "${LOG_FILE}.$timestamp.gz" "$BACKUP_DIR/"
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touch "$LOG_FILE"
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fi
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fi
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}
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# --------------------------
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# 获取应用状态
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# --------------------------
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status() {
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if [ -f "$PID_FILE" ]; then
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pid=$(cat "$PID_FILE")
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if ps -p "$pid" > /dev/null; then
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echo "[INFO] $APP_NAME 正在运行 (PID: $pid)"
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return 0
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else
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echo "[WARN] PID文件存在但进程未运行，可能存在异常退出"
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return 1
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fi
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else
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echo "[INFO] $APP_NAME 未运行"
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return 3
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fi
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}
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# --------------------------
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# 启动应用
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# --------------------------
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start() {
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init_check
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status >/dev/null 2>&1
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local running=$?
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if [ $running -eq 0 ]; then
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echo "[WARN] $APP_NAME 已经在运行中 (PID: $(cat "$PID_FILE"))"
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return 1
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fi
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# 清理无效PID文件
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if [ $running -eq 1 ]; then
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rm -f "$PID_FILE"
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fi
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rotate_log
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echo "正在启动 $APP_NAME..."
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cd "$APP_DIR" || exit 1
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# 使用exec启动以便获取正确的PID
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nohup java $JAVA_OPTS -jar "$JAR_NAME" >> "$LOG_FILE" 2>&1 &
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local pid=$!
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echo $pid > "$PID_FILE"
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echo "[SUCCESS] $APP_NAME 已启动 (PID: $pid)"
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echo "日志文件: $LOG_FILE"
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}
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# --------------------------
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# 停止应用
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# --------------------------
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stop() {
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status >/dev/null 2>&1
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local running=$?
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if [ $running -ne 0 ]; then
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echo "[WARN] $APP_NAME 未运行"
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return 1
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fi
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local pid=$(cat "$PID_FILE")
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echo "正在停止 $APP_NAME (PID: $pid)..."
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# 先尝试优雅关闭
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kill $pid
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# 等待进程退出
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local count=0
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while [ $count -lt $WAIT_STOP_TIMEOUT ]; do
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if ! ps -p $pid > /dev/null; then
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break
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fi
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sleep 1
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((count++))
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done
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# 强制终止
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if ps -p $pid > /dev/null; then
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echo "[WARN] 优雅关闭失败，尝试强制终止..."
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kill -9 $pid
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sleep 1
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fi
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rm -f "$PID_FILE"
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echo "[SUCCESS] $APP_NAME 已停止"
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}
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# --------------------------
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# 重启应用
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# --------------------------
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restart() {
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stop
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sleep 2
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start
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}
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# --------------------------
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# 查看日志
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# --------------------------
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tail_log() {
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if [ ! -f "$LOG_FILE" ]; then
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echo "[ERROR] 日志文件不存在: $LOG_FILE"
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return 1
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fi
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echo "正在显示日志: $LOG_FILE (Ctrl+C 退出)"
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echo "--------------------------------------------------"
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tail -f "$LOG_FILE"
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}
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# --------------------------
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# 备份应用
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# --------------------------
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backup() {
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local timestamp=$(date +%Y%m%d%H%M%S)
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local backup_file="${BACKUP_DIR}/${JAR_NAME%.*}_${timestamp}.jar"
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echo "正在备份应用到: $backup_file"
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cp "${APP_DIR}/${JAR_NAME}" "$backup_file"
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if [ $? -eq 0 ]; then
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echo "[SUCCESS] 备份完成"
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return 0
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else
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echo "[ERROR] 备份失败"
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return 1
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fi
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}
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# --------------------------
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# 升级应用
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# --------------------------
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upgrade() {
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local new_jar="$JAR_NAME"
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local lib_dir="$APP_DIR"
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local backup_dir="${BACKUP_DIR}/lib"
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# 检查新的JAR文件是否存在
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if [ ! -f "$new_jar" ]; then
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echo "[ERROR] 新的JAR文件不存在: $new_jar"
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return 1
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fi
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# 检查lib目录是否存在
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if [ ! -d "$lib_dir" ]; then
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echo "[ERROR] lib目录不存在: $lib_dir"
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return 1
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fi
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# 检查backup目录是否存在，不存在则创建
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mkdir -p "$backup_dir"
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# 获取lib目录下原有的JAR文件名
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local old_jar=$(ls "$lib_dir" | grep -E "^${JAR_NAME%.jar}-[0-9]{14}\.jar$")
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if [ -z "$old_jar" ]; then
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old_jar="$JAR_NAME"
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fi
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# 备份原有的JAR文件
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local timestamp=$(date +%Y%m%d%H%M%S)
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local backup_file="${backup_dir}/${old_jar%.jar}_${timestamp}.jar"
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cp "${lib_dir}/${old_jar}" "$backup_file"
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if [ $? -eq 0 ]; then
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echo "[SUCCESS] 备份原有JAR文件到: $backup_file"
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else
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echo "[ERROR] 备份原有JAR文件失败"
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return 1
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fi
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# 复制新的JAR文件到lib目录
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cp "$new_jar" "$lib_dir/"
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if [ $? -eq 0 ]; then
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echo "[SUCCESS] 升级JAR文件到: $lib_dir/$new_jar"
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else
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echo "[ERROR] 升级JAR文件失败"
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return 1
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fi
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# 删除旧的JAR文件（可选，如果保留旧版本则不需要删除）
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# rm -f "${lib_dir}/${old_jar}"
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# if [ $? -eq 0 ]; then
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# echo "[SUCCESS] 删除旧的JAR文件: ${lib_dir}/${old_jar}"
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# else
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# echo "[ERROR] 删除旧的JAR文件失败"
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# return 1
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# fi
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}
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# --------------------------
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# 主程序
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# --------------------------
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case "$1" in
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start)
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start
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;;
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stop)
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stop
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;;
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restart)
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restart
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;;
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status)
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status
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;;
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log)
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tail_log
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;;
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backup)
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backup
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;;
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upgrade)
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upgrade
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;;
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*)
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echo "用法: $0 {start|stop|restart|status|log|backup|upgrade}"
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echo " start 启动应用"
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echo " stop 停止应用"
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echo " restart 重启应用"
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echo " status 查看状态"
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echo " log 查看实时日志"
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echo " backup 备份应用"
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echo " upgrade 升级应用"
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exit 1
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;;
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esac
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exit 0
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