diff --git a/bin/restart_java_backend.sh b/bin/restart_java_backend.sh
index bf861cf..f45ef14 100755
--- a/bin/restart_java_backend.sh
+++ b/bin/restart_java_backend.sh
@@ -9,10 +9,10 @@ CONSOLE_LOG="$LOG_DIR/backend-console.log"
 PID_FILE="$LOG_DIR/backend-java.pid"
 TARGET_DIR="$ROOT_DIR/ruoyi-admin/target"
 JAR_NAME="ruoyi-admin.jar"
-SERVER_PORT=8080
+SERVER_PORT=63310
 STOP_WAIT_SECONDS=30
-APP_KEYWORD="$JAR_NAME"
-JAVA_OPTS="-Duser.timezone=Asia/Shanghai -Xms512m -Xmx1024m -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError"
+APP_MARKER="-Dccdi.backend.root=$ROOT_DIR"
+JAVA_OPTS="$APP_MARKER -Duser.timezone=Asia/Shanghai -Xms512m -Xmx1024m -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError"
 
 timestamp() {
     date "+%Y-%m-%d %H:%M:%S"
@@ -42,24 +42,54 @@ ensure_command() {
     fi
 }
 
+is_managed_backend_pid() {
+    pid="$1"
+    if [ -z "${pid:-}" ] || ! kill -0 "$pid" 2>/dev/null; then
+        return 1
+    fi
+
+    args=$(ps -o args= -p "$pid" 2>/dev/null || true)
+    if [ -z "${args:-}" ]; then
+        return 1
+    fi
+
+    case "$args" in
+        *"$APP_MARKER"*"$JAR_NAME"*|*"$JAR_NAME"*"$APP_MARKER"*)
+            return 0
+            ;;
+    esac
+
+    if [ -f "$PID_FILE" ]; then
+        file_pid=$(cat "$PID_FILE" 2>/dev/null || true)
+        if [ "${file_pid:-}" = "$pid" ]; then
+            case "$args" in
+                *"java"*"-jar"*"$JAR_NAME"*)
+                    return 0
+                    ;;
+            esac
+        fi
+    fi
+
+    return 1
+}
+
 collect_pids() {
     all_pids=""
 
     if [ -f "$PID_FILE" ]; then
         file_pid=$(cat "$PID_FILE" 2>/dev/null || true)
-        if [ -n "${file_pid:-}" ] && kill -0 "$file_pid" 2>/dev/null; then
+        if [ -n "${file_pid:-}" ] && is_managed_backend_pid "$file_pid"; then
             all_pids="$all_pids $file_pid"
         fi
     fi
 
-    port_pids=$(lsof -tiTCP:"$SERVER_PORT" -sTCP:LISTEN 2>/dev/null || true)
-    if [ -n "${port_pids:-}" ]; then
-        all_pids="$all_pids $port_pids"
-    fi
-
-    app_pids=$(pgrep -f "$APP_KEYWORD" 2>/dev/null || true)
-    if [ -n "${app_pids:-}" ]; then
-        all_pids="$all_pids $app_pids"
+    marker_pids=$(pgrep -f "$APP_MARKER" 2>/dev/null || true)
+    if [ -n "${marker_pids:-}" ]; then
+        for pid in $marker_pids; do
+            if is_managed_backend_pid "$pid"; then
+                all_pids="$all_pids $pid"
+            fi
+        done
     fi
 
     unique_pids=""
@@ -155,6 +185,12 @@ status_backend() {
     pids=$(collect_pids)
     if [ -n "${pids:-}" ]; then
         log_info "后端正在运行，进程: $pids"
+        return 0
+    fi
+
+    port_pids=$(lsof -tiTCP:"$SERVER_PORT" -sTCP:LISTEN 2>/dev/null || true)
+    if [ -n "${port_pids:-}" ]; then
+        log_info "未发现脚本托管的后端进程，但端口 $SERVER_PORT 被其他进程占用: $port_pids"
     else
         log_info "后端未运行"
     fi
@@ -190,6 +226,7 @@ main() {
     ensure_command mvn
     ensure_command lsof
     ensure_command pgrep
+    ensure_command ps
     ensure_command tail
 
     action="${1:-restart}"