[Update] 更新jms脚本

jms

@@ -80,10 +80,14 @@ def get_log_file_path(service):
 
 def get_pid(service):
     pid_file = get_pid_file_path(service)
+    pid = 0
     if os.path.isfile(pid_file):
         with open(pid_file) as f:
+            try:
                 return int(f.read().strip())
-    return 0
+            except ValueError:
+                pass
+    return pid
 
 
 def is_running(s, unlink=True):