JAVA Process簡單應用

*java如果要執行exe或bat可執行檔，可以利用 Runtime.getRuntime().exec("xxx.exe")來執行，如下就可以啟動jmeter。

Process process = Runtime.getRuntime().exec("D:/JMeter/apache-jmeter-2.9/bin/jmeter.bat");

*可利用下面語法看到目前作業系統
System.out.println(System.getProperty("os.name"));


練習使用JAVA 在目前正在執行 process 裡找到特定的process，並找到pid kill掉。


範例：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class ExcuteTest {

public static void main(String[] args) {
try {
Process process = Runtime.getRuntime().exec("tasklist");
int taskId = 0;
BufferedReader br = new BufferedReader(new InputStreamReader(
process.getInputStream(), "MS950"));

String line = null;
while ((line = br.readLine()) != null) {
if (line.indexOf("Skype.exe") != -1) {
line = line.substring( "Skype.exe".length() );
System.out.println(line.trim());
       taskId = Integer.parseInt( (line.trim().split( " " ))[0] );

       System.out.println( "Task Id: " + taskId );
}
}
Runtime rt = Runtime.getRuntime();
if (System.getProperty("os.name").toLowerCase().indexOf("windows") > -1) {
System.out.println("taskkill......." + taskId);
rt.exec("tskill " + taskId);
} else {
System.out.println("kill -9 ......." + taskId);
rt.exec("kill -9 " + taskId);
}
} catch (IOException e) {
e.printStackTrace();
} catch (SecurityException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
}
}
}