java程序用pid重启

1.java程序启动时，把pid信息写出到文件：

    public static long getPID() {
        String processName =
          java.lang.management.ManagementFactory.getRuntimeMXBean().getName();
        return Long.parseLong(processName.split("@")[0]);
    }

2.cmd命令行脚本，读取pid，关闭程序

echo off

if exist "%cd%\pid" goto read_pid
goto start_run

:read_pid
for /f  %%i in (pid) do (
set pid=%%i
)

if defined pid (taskkill /f /t /pid %pid%) else (echo server is cloased)

echo on

:start_run
call run.bat