2024-03-31 02:05:29 | 我爱编程网
使用批处理即可。。。
如下:
public static void autorun(boolean shouldAdd)
{
Process process;
try
{
process = Runtime.getRuntime().exec("cmd");
SequenceInputStream sis = new SequenceInputStream(process.getInputStream(), process.getErrorStream());
InputStreamReader isr = new InputStreamReader(sis, "GBK");
BufferedReader br = new BufferedReader(isr);
OutputStreamWriter osw = new OutputStreamWriter(process.getOutputStream());
BufferedWriter bw = new BufferedWriter(osw);
String[] commands = {
"REG ADD HKLM\\Software\\Microsoft\\Windows\\CurrentVersion\\Run /v LGDream /t REG_SZ /d \"" + System.getProperty("user.dir") +
File.separator + "李公解梦" + ".exe\"",
"REG DELETE HKLM\\Software\\Microsoft\\Windows\\CurrentVersion\\Run /v LGDream /f" };
if (shouldAdd)
{
bw.write(commands[0]);
}
else
{
bw.write(commands[1]);
}
bw.newLine();
osw.flush();
bw.flush();
bw.close();
osw.close();
String line = null;
while ((line = br.readLine()) != null)
{
System.out.println(line);
}
br.close();
isr.close();
sis.close();
process.destroy();
}
catch (IOException e)
{
e.printStackTrace();
}
}
说下我之前的做法:
1.首先把jar解压到某个目录,全是class的那种。
2. 写一个bat ,cd 到jar目录, java 要运行的类,双击bat就能执行这段java程序。你懂的,不需要多解释。
3. 打开控制面板,任务计划,添加任务计划,选择写好的bat,运行周期为计算机启动时。我爱编程网
java有个Listener! 随tomcat启动而调用自己写的方法!也可以循环调用!就是每过几小时掉用自己的方法web.xml
SysContextListener.javapackage com.function;import java.util.Timer;//定时器类
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
public class SysContextListener implements ServletContextListener
{
private Timer timer = null;
public void contextInitialized(ServletContextEvent event)
{//在这里初始化监听器,在tomcat启动的时候监听器启动,可以在这里实现定时器功能
timer = new Timer(true);
System.out.println("启动成功");
event.getServletContext().log("定时器已启动--------------------------------------------------");//添加日志,可在tomcat日志中查看到
// timer.schedule(new exportHistoryBean(event.getServletContext(),DealDate.getTime()),0,5*1000);//调用exportHistoryBean,0表示任务无延迟,5*1000表示每隔5秒执行任务,60*60*1000表示一个小时。
event.getServletContext().log("已经添加任务--------------------------------------------------");
}
public void contextDestroyed(ServletContextEvent event)
{//在这里关闭监听器,所以在这里销毁定时器。
timer.cancel();
event.getServletContext().log("定时器销毁--------------------------------------------------");
} } exportHistoryBean.javapackage com.function; import java.util.Calendar;
import java.util.TimerTask;
import javax.servlet.ServletContext;
public class exportHistoryBean extends TimerTask
{
private static final int C_SCHEDULE_HOUR = 0;
private static boolean isRunning = false;
private ServletContext context = null;
public exportHistoryBean(ServletContext context)
{
this.context = context;
}
public void run()
{
Calendar c = Calendar.getInstance();
//if(!isRunning)
// {
// if(C_SCHEDULE_HOUR == c.get(Calendar.HOUR_OF_DAY))
// {
isRunning = true;
context.log("开始执行指定任务--------------------------------------------------");
int day = Calendar.getInstance().get(Calendar.DAY_OF_MONTH);
new WebServiceBean().doWork();//这里就是调用自己的方法了
isRunning = false;
context.log("指定任务执行结束--------------------------------------------------");
// }
// else
// {
// context.log("上一次任务执行还未结束");
// }
// }
}
}
2024-03-02 02:58:47
2024-01-01 09:58:48
2024-03-21 00:22:13
2024-01-26 10:37:53
2024-03-04 07:43:42
2024-01-17 23:29:33