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【Java】进程工具类
作者:MusketeerL / 发布于2014/8/19/ 763
检测进程是否运行，寻找进程id，关闭进程等

	package cn.showclear.main.utils;
	
	import java.io.IOException;
	import java.util.Scanner;
	
	import org.apache.log4j.Logger;
	
	/**
	* 进程工具类，windows版
	*
	* @author LuLihong
	* @date 2014-8-13
	*/
	public class ProcessUtils {
	 private static final Logger log = Logger.getLogger(ProcessUtils.class);
	 /**
	 * 检测某进程是否在运行
	 * @param proName
	 * @return
	 */
	 public static boolean isRunning(String proName) {
	 try {
	 Process process = Runtime.getRuntime().exec("tasklist");
	 Scanner in = new Scanner(process.getInputStream());
	 while (in.hasNextLine()) {
	 String p = in.nextLine();
	 if (p.contains(proName)) {
	 return true;
	 }
	 }
	 in.close();
	 } catch (IOException e) {
	 log.error(String.format("Check process[%s] running error: " + e.getMessage(), proName));
	 }
	
	 return false;
	 }
	
	 /**
	 * 根据进程名寻找进程ID
	 * @param proName
	 * @return 不存在，返回-1
	 */
	 public static int findProcessId(String proName) {
	 try {
	 Process process = Runtime.getRuntime().exec("tasklist");
	 Scanner in = new Scanner(process.getInputStream());
	 while (in.hasNextLine()) {
	 String p = in.nextLine();
	 if (p.contains(proName)) {
	 p = p.replaceAll("\\s+", ",");
	 System.out.println(p);
	 String[] arr = p.split(",");
	 return StringUtils.toInt(arr[1], -1);
	 }
	 }
	 in.close();
	 } catch (IOException e) {
	 log.error(String.format("Find process[%s] id error: " + e.getMessage(), proName));
	 }
	
	 return -1;
	 }
	
	 /**
	 * 关闭某进程(根据PID)
	 * @param pid
	 * @return
	 */
	 public static boolean killProcess(int pid) {
	 try {
	 Runtime.getRuntime().exec("cmd.exe /c taskkill /f /pid " + pid);
	 } catch (IOException e) {
	 log.error(String.format("Kill process[id=%d] error: " + e.getMessage(), pid));
	 return false;
	 }
	
	 return true;
	 }
	
	 /**
	 * 关闭进程(根据名称)
	 * @param proName
	 * @return
	 */
	 public static boolean killProcess(String proName) {
	 int pid = findProcessId(proName);
	 if (pid == -1) return true;
	 return killProcess(pid);
	 }
	
	
	 /**
	 * 关闭某进程(根据名称)直到真正关闭
	 * @param proName
	 * @return
	 */
	 public static boolean killProcessBlock(String proName) {
	 int pid = findProcessId(proName);
	 if (pid == -1) return true;
	 do {
	 killProcess(pid);
	 try {
	 Thread.sleep(100);
	 } catch (InterruptedException e) {
	 }
	 } while (isRunning(proName));
	
	 return true;
	 }
	
	 /**
	 * 显示所有进程
	 */
	 public static void listProcess() {
	 try {
	 Process process = Runtime.getRuntime().exec("tasklist");
	
	 Scanner in = new Scanner(process.getInputStream());
	 while (in.hasNextLine()) {
	 System.out.println(in.nextLine());
	 }
	 in.close();
	 } catch (IOException e) {
	 }
	 }
	
	 public static void main(String[] args) {
	 long t1 = System.currentTimeMillis();
	 listProcess();
	 long t2 = System.currentTimeMillis();
	 System.out.println("Used time: " + (t2 - t1));
	
	
	 String proName = "Foxmail.exe";
	// int pid = findProcessId(proName);
	// System.out.println(pid);
	// killProcess(pid);
	
	 boolean b = killProcessBlock(proName);
	 long t3 = System.currentTimeMillis();
	 System.out.println("Used time: " + (t3 - t2));
	 System.out.println(b);
	 }
	
	}
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