diff --git a/bin/post-steps.sh b/bin/post-steps.sh
new file mode 100644
index 0000000..ce43167
--- /dev/null
+++ b/bin/post-steps.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+
+PORT=8889
+JAR_PATH="/home/zhangbiqiong/pro_eld_mqtt_compare/app/pro_eld_mqtt_compare-0.0.1-SNAPSHOT.jar"
+LOG_PATH="/home/zhangbiqiong/pro_eld_mqtt_compare/logs/pro_eld_mqtt_compare.log"
+
+# 检测端口是否被占用
+if netstat -tuln | grep -q ":$PORT"; then
+  echo "Port $PORT is already in use. Not starting application."
+  exit 0
+else
+  echo "Port $PORT is free. Starting application..."
+  nohup java -jar "$JAR_PATH" > "$LOG_PATH" 2>&1 &
+  echo "Application started with PID $!"
+fi
\ No newline at end of file
diff --git a/bin/pre-step.sh b/bin/pre-step.sh
new file mode 100644
index 0000000..7ea54fa
--- /dev/null
+++ b/bin/pre-step.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+REPO_URL="git@34.102.70.200:ALEX/pro_eld_mqtt_compare.git"
+CODE_DIR="/home/zhangbiqiong/pro_eld_mqtt_compare"
+JAR_NAME="pro_eld_mqtt_compare-0.0.1-SNAPSHOT.jar"
+
+if [ -d "$CODE_DIR/.git" ]; then
+    echo "[INFO] 拉取最新代码..."
+    cd "$CODE_DIR" || { echo "[ERROR] 进入目录失败"; exit 1; }
+    git reset --hard HEAD
+    git pull origin master
+else
+    echo "[INFO] 克隆仓库..."
+    git clone "$REPO_URL" "$CODE_DIR" || { echo "[ERROR] 克隆失败"; exit 1; }
+    cd "$CODE_DIR" || { echo "[ERROR] 进入目录失败"; exit 1; }
+fi
+
+# === 停止旧的 Java 应用 ===
+pid=$(ps -ef | grep -w java | grep "$JAR_NAME" | grep -v grep | awk '{print $2}')
+
+if [ -z "$pid" ]; then
+    echo "[INFO] 未检测到旧版 Java 应用在运行。"
+else
+    echo "[INFO] 检测到旧进程 pid=$pid，正在停止..."
+    sudo kill -9 "$pid"
+    sleep 2
+    echo "[INFO] 已停止旧应用进程。"
+fi
\ No newline at end of file