项目启动jar

2026-04-09
项目启动通过jar方式启动
#!/bin/bash
set -euo pipefail

# ===================== 配置部分 =====================
JAVA_EXE=/usr/local/java/jdk1.8.0_431/bin/java
JAR_PATH="/usr/local/123.jar"
LOG_FILE="/usr/local/app.log"
JAVA_OPTS="-Xms1g -Xmx8g -Dspring.profiles.active=prod"
#等待项目启动时间
STOP_TIMEOUT=120
PID_FILE="/usr/local/123.pid"

# ===================== 获取PID =====================
get_pid() {
    if [ -f "$PID_FILE" ]; then
        local pid=$(cat "$PID_FILE")
        if ps -p "$pid" > /dev/null 2>&1 && grep -q "java .*$JAR_PATH" /proc/"$pid"/cmdline 2>/dev/null; then
            echo "$pid"
            return
        fi
        rm -f "$PID_FILE"
    fi
    pgrep -f "^$JAVA_EXE .* -jar $JAR_PATH\$"
}

# ===================== 启动 =====================
start() {
    local PID=$(get_pid)
    if [ -n "$PID" ]; then
        echo "Application is already running, PID=$PID"
        exit 0
    fi

    echo "Starting application..."
    mkdir -p "$(dirname "$LOG_FILE")"
    nohup "$JAVA_EXE" $JAVA_OPTS -jar "$JAR_PATH" >> "$LOG_FILE" 2>&1 &
    local NEW_PID=$!
    echo "$NEW_PID" > "$PID_FILE"

    sleep 3
    if ps -p "$NEW_PID" > /dev/null 2>&1; then
        echo "Application started successfully, PID=$NEW_PID"
    else
        echo "Failed to start application, please check log: $LOG_FILE"
        rm -f "$PID_FILE"
        exit 1
    fi
}

# ===================== 停止 =====================
stop() {
    local PID=$(get_pid)
    if [ -z "$PID" ]; then
        echo "Application is not running"
        exit 0
    fi

    echo "Stopping application (PID=$PID), waiting up to $STOP_TIMEOUT seconds..."
    kill "$PID"

    local count=0
    while ps -p "$PID" > /dev/null 2>&1 && [ $count -lt $STOP_TIMEOUT ]; do
        sleep 1
        count=$((count + 1))
        echo -n "."
    done
    echo ""

    if ps -p "$PID" > /dev/null 2>&1; then
        echo "Stop timeout, killing process (PID=$PID)"
        kill -9 "$PID"
        sleep 2
    fi

    rm -f "$PID_FILE"
    echo "Application stopped"
}

# ===================== 重启 =====================
restart() {
    echo "Restarting application..."
    stop
    sleep 2
    start
}

# ===================== 状态 =====================
status() {
    local PID=$(get_pid)
    if [ -n "$PID" ]; then
        echo "Application is running, PID=$PID"
        exit 0
    else
        echo "Application is not running"
        exit 1
    fi
}

# ===================== 主逻辑 =====================
case "$1" in
    start) start ;;
    stop) stop ;;
    restart) restart ;;
    status) status ;;
    *)
        echo "Usage: $0 {start|stop|restart|status}"
        exit 1
        ;;
esac
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