java獲取本地操作系統進程列表

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.nio.charset.Charset;

public class ProcessUtil {

public static void main(String[] args) throws Exception {

    // 創建系統進程
    ProcessBuilder pb = new ProcessBuilder("tasklist");
    Process p = pb.start();
    BufferedReader out = new BufferedReader(new InputStreamReader(new BufferedInputStream(p.getInputStream()), Charset.forName("GB2312")));
    BufferedReader err = new BufferedReader(new InputStreamReader(new BufferedInputStream(p.getErrorStream())));
    System.out.println("Window 系統進程列表");
    String ostr;

    while ((ostr = out.readLine()) != null)
    System.out.println(ostr);
    String estr = err.readLine();
    if (estr != null) {
    System.out.println("\nError Info");
    System.out.println(estr);
    }
}


}</pre> 

 控制臺輸出：
Window 系統進程列表

映像名稱                       PID 會話名              會話#       內存使用 
========================= ======== ================ =========== ============
System Idle Process              0 Services                   0         24 K
System                           4 Services                   0      4,600 K
smss.exe                       372 Services                   0        176 K
csrss.exe                      548 Services                   0      1,680 K
wininit.exe                    624 Services                   0        360 K
csrss.exe                      632 Console                    1     52,584 K
winlogon.exe                   680 Console                    1      2,024 K
services.exe                   724 Services                   0      4,804 K
lsass.exe                      740 Services                   0      5,632 K
lsm.exe                        748 Services                   0      1,564 K
svchost.exe                    844 Services                   0      3,408 K
svchost.exe                    952 Services                   0      4,200 K
svchost.exe                   1068 Services                   0     10,508 K
svchost.exe                   1100 Services                   0     41,200 K
svchost.exe                   1128 Services                   0     18,856 K
svchost.exe                   1252 Services                   0      6,656 K</pre>