如何使用Runtime.exec在Bash后台运行Java runnable JAR进程
我正在尝试运行一个Java runnable JAR，在前台做一些事情，然后让它进入后台。。。我在代码中使用以下putInBackground方法来查找与“command”字符串匹配的进程，获取其PID，向其发送SIGSTOP、bg，并disown-h it。。。我有以下代码：如何使用Runtime.exec在Bash后台运行Java runnable JAR进程,java,bash,shell,executable-jar,runtime.exec,Java,Bash,Shell,Executable Jar,Runtime.exec,我正在尝试运行一个Java runnable JAR，在前台做一些事情，然后让它进入后台。。。我在代码中使用以下putInBackground方法来查找与“command”字符串匹配的进程，获取其PID，向其发送SIGSTOP、bg，并disown-h it。。。我有以下代码： import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class Co
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class CommandUtil
{
private static final String GPID = "ps -ef | grep '%s' | grep -v grep | awk '{print $2}'";
private static final String PCMD = GPID + " | xargs %s";
private static final String STOP = "kill -19";
private static final String BCKG = "bg";
private static final String DSON = "disown -h";
private static Runtime runtime;
private static Process process;
private static BufferedReader bufferedReader;
private static String outputLine;
private static boolean runtime() {
return (runtime = Runtime.getRuntime()) != null;
}
public static boolean putInBackground(String command) {
if(runCmdPid(command, STOP)) {
if(runCommand(BCKG)) {
return runCommand(DSON);
}
}
return false;
}
public static boolean runCmdPid(String command, String xargs) {
return runCommand(String.format(PCMD, command, xargs));
}
public static boolean runCommand(String command) {
if(runtime() && command != null && !command.isEmpty()) {
try {
process = runtime.exec(command);
process.waitFor();
bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
while ((outputLine = bufferedReader.readLine()) != null) {
System.out.println(outputLine);
}
bufferedReader.close();
} catch (IOException | InterruptedException e) {
e.printStackTrace();
return false;
}
return true;
}
return false;
}
}
Piotr.尝试为
bg/usr/bin/bg