blocks|key|609993|text|我相信Ctrl-C被shell捕获并转换为信号(SIGINT)，该信号被发送到底层进程(在本例中是您衍生的进程)。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|609994|因此，我认为您需要获取进程id，然后向该进程发送适当的信号。This+question看起来非常相似，并指出了各种使用资源。|609995|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/SIGINT_%2528POSIX%2529|1|https://stackoverflow.com/questions/912889/how-to-send-interrupt-key-sequence-to-a-java-process^0|O|6|0|0|U|D|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]]|C|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]]]

I believe Ctrl-C is caught by the shell and translated into a signal (<a href="http://en.wikipedia.org/wiki/SIGINT_%28POSIX%29" rel="nofollow noreferrer">SIGINT</a>) which is sent to the underlying process (in this case your spawned process).

So I think you'll need to get the process id and then send the appropriate signal to that process. <a href="https://stackoverflow.com/questions/912889/how-to-send-interrupt-key-sequence-to-a-java-process">This question</a> appears to be very similar and points to various resources of use.

blocks|key|571273|text|经过大量的试验，我找到了一个我现在喜欢的解决方案。基本上，它是这样工作的:+1.获取您启动的进程的进程ID+2.将此PID传递给稍作修改的SendSignal.exe版本，该版本将发送Ctrl-C而不是Ctrl-Break|type|unstyled|depth|inlineStyleRanges|entityRanges|data|571274|这两个步骤都不是完全直截了当的，但也差不多。对于1，您需要获取PID。Java不提供任何本机方法来获取它。有许多帖子在讨论如何做到最好。我决定在您现在需要的地方命名(参见下面代码中的getProcessIDs()+)。|571275|对于2.你需要有一个工具来发送CTRL-C到一个给定的PID。同样，Java不能做到这一点。有不同的方法可以做到这一点(例如，在python中使用包装器)，但所有这些方法都有点复杂。我发现最简单的方法是使用.exe文件来完成这项工作。为此，我修改了SendSingal.exe。你可以在这里获得源码:+1.然后，简单地将所有出现"BREAK“(也是小写字母)的地方替换为"C”并重新编译。|571276|将可执行文件重命名为SendSignalC.exe，并将其放在启动Java的子文件夹ext\中。然后运行下面的代码，愉快地调用例如SendCTRLC.sendCtrlC("howeveryourprogramiscall.exe").|571277|/**+
+*+Sends+CTRL-C+to+running+processes+from+Java+(in+Windows)
+*+and+ca+get+ProcessID(s)+for+a+given+process+name.
+*+IMPORTANT!
+*+This+function+NEEDS+SendSignalC.exe+in+the+ext\+subdirectory.
+*+@author+Kai+Goergen
+*/

import+java.io.*;
import+java.util.*;

public+class+SendCTRLC()+{


++++/**
+++++*+Get+all+PIDs+for+a+given+name+and+send+CTRL-C+to+all
+++++*+@param+processName
+++++*+@return
+++++*/
++++public+static+List<String>+sendCTRLC(String+processName)+{
++++++++//+get+all+ProcessIDs+for+the+processName
++++++++List<String>+processIDs+=+getProcessIDs(processName);
++++++++System.out.println(""+%2B+processIDs.size()+%2B+"+PIDs+found+for+"+%2B+processName+%2B+":+"+%2B+processIDs.toString());
++++++++for+(String+pid+:+processIDs)+{
++++++++++++//+close+it
++++++++++++sendCTRLC(Integer.parseInt(pid));
++++++++}
++++++++return+processIDs;
++++}

++++/**
+++++*+Send+CTRL-C+to+the+process+using+a+given+PID
+++++*+@param+processID
+++++*/
++++public+static+void+sendCTRLC(int+processID)+{
++++++++System.out.println("+Sending+CTRL%2BC+to+PID+"+%2B+processID);
++++++++try+{
++++++++++++Process+p+=+Runtime.getRuntime().exec("cmd+/c+ext\\SendSignalC.exe+"+%2B+processID);
++++++++++++StreamGobbler.StreamGobblerLOGProcess(p);
++++++++}+catch+(IOException+e)+{
++++++++++++e.printStackTrace();
++++++++}
++++}

++++/**
+++++*+Get+List+of+PIDs+for+a+given+process+name
+++++*+@param+processName
+++++*+@return
+++++*/
++++public+static+List<String>+getProcessIDs(String+processName)+{
++++++++List<String>+processIDs+=+new+ArrayList<String>();
++++++++try+{
++++++++++++String+line;
++++++++++++Process+p+=+Runtime.getRuntime().exec("tasklist+/v+/fo+csv");
++++++++++++BufferedReader+input+=+new+BufferedReader
++++++++++++++++++++(new+InputStreamReader(p.getInputStream()));
++++++++++++while+((line+=+input.readLine())+!=+null)+{
++++++++++++++++if+(!line.trim().equals(""))+{
++++++++++++++++++++//+Pid+is+after+the+1st+",+thus+it's+argument+3+after+splitting
++++++++++++++++++++String+currentProcessName+=+line.split("\"")[1];
++++++++++++++++++++//+Pid+is+after+the+3rd+",+thus+it's+argument+3+after+splitting
++++++++++++++++++++String+currentPID+=+line.split("\"")[3];
++++++++++++++++++++if+(currentProcessName.equalsIgnoreCase(processName))+{
++++++++++++++++++++++++processIDs.add(currentPID);
++++++++++++++++++++}
++++++++++++++++}
++++++++++++}
++++++++++++input.close();
++++++++}
++++++++catch+(Exception+err)+{
++++++++++++err.printStackTrace();
++++++++}
++++++++return+processIDs;

++++}
}|code-block|syntax|javascript|571278|附言:我很想在这里附加SendSignalC.exe，但我不认为我被允许这样做。无论如何，如果您有一个正在运行的cpp编译器，那么更改是简单而直接的……|571279|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|S|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|T|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|U|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

After lots and lots of trials, I found a solution that I like now.
Basically, it works like this:
1. Get the Process ID of the process that you started
2. Pass this PID to a slightly modified version of SendSignal.exe, which sends Ctrl-C instead of Ctrl-Break

Both steps are not completely straight forward, but nearly.
For 1. you need to get the PID. Java does not provide any native way to get it.
There are a number of threads discussing about how to do that best.
I decided for one where you need to now the name (see getProcessIDs() in the code below).

For 2. you need to have a tool that sends CTRL-C to a given PID. Again, Java does not do this.
There are different ways to do it (e.g. using a wrapper in python or so), but all of them are somewhat complicated. I found the easiest one is to use a .exe-File to do the job. For this, I modified SendSingal.exe. You can get the sourcecode here: 1. Then, simply replace all occurences of "BREAK" (also in lowercase letters) by "C" and recompile.

Rename the exe to SendSignalC.exe and put it in a subfolder ext\ of where you start Java. Then run the code below and happily call e.g. SendCTRLC.sendCtrlC("howeveryourprogramiscall.exe").

<pre><code>/** 
 * Sends CTRL-C to running processes from Java (in Windows)
 * and ca get ProcessID(s) for a given process name.
 * IMPORTANT!
 * This function NEEDS SendSignalC.exe in the ext\ subdirectory.
 * @author Kai Goergen
 */

import java.io.*;
import java.util.*;

public class SendCTRLC() {


 /**
 * Get all PIDs for a given name and send CTRL-C to all
 * @param processName
 * @return
 */
 public static List&lt;String&gt; sendCTRLC(String processName) {
 // get all ProcessIDs for the processName
 List&lt;String&gt; processIDs = getProcessIDs(processName);
 System.out.println("" + processIDs.size() + " PIDs found for " + processName + ": " + processIDs.toString());
 for (String pid : processIDs) {
 // close it
 sendCTRLC(Integer.parseInt(pid));
 }
 return processIDs;
 }

 /**
 * Send CTRL-C to the process using a given PID
 * @param processID
 */
 public static void sendCTRLC(int processID) {
 System.out.println(" Sending CTRL+C to PID " + processID);
 try {
 Process p = Runtime.getRuntime().exec("cmd /c ext\\SendSignalC.exe " + processID);
 StreamGobbler.StreamGobblerLOGProcess(p);
 } catch (IOException e) {
 e.printStackTrace();
 }
 }

 /**
 * Get List of PIDs for a given process name
 * @param processName
 * @return
 */
 public static List&lt;String&gt; getProcessIDs(String processName) {
 List&lt;String&gt; processIDs = new ArrayList&lt;String&gt;();
 try {
 String line;
 Process p = Runtime.getRuntime().exec("tasklist /v /fo csv");
 BufferedReader input = new BufferedReader
 (new InputStreamReader(p.getInputStream()));
 while ((line = input.readLine()) != null) {
 if (!line.trim().equals("")) {
 // Pid is after the 1st ", thus it's argument 3 after splitting
 String currentProcessName = line.split("\"")[1];
 // Pid is after the 3rd ", thus it's argument 3 after splitting
 String currentPID = line.split("\"")[3];
 if (currentProcessName.equalsIgnoreCase(processName)) {
 processIDs.add(currentPID);
 }
 }
 }
 input.close();
 }
 catch (Exception err) {
 err.printStackTrace();
 }
 return processIDs;

 }
}
</code></pre>

PS: I would love to attach SendSignalC.exe here, but I don't think that I'm allowed to. Anyhow, the changes are simple and straight-forward if you have a running cpp-compiler...

blocks|key|2018186|text|要终止，您可以使用以下代码taskkill+java：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2018187|Runtime.getRuntime().exec("taskkill+/f+/im+java.exe");|code-block|syntax|javascript|2018188|希望这对你有所帮助！|2018189|entityMap^0|D|8|M|4|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|N|$]]

To terminate you can <code>taskkill</code> <code>java</code> with this code:

<pre><code>Runtime.getRuntime().exec("taskkill /f /im java.exe");
</code></pre>

Hope this help!

blocks|key|2018211|text|切换到Java9可以节省您的时间，Process现在有了pid属性，有关详细信息，请查看文档here。您可以很容易地杀死另一个进程，如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2018212|long+pid+=+process.pid();
Runtime.getRuntime().exec("kill+"+%2B+pid);|code-block|syntax|javascript|2018213|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.oracle.com/javase/9/docs/api/java/lang/Process.html#pid--^0|H|7|S|3|1A|4|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@$9|X|A|Y|1|Z]]|E|$]]|$1|F|3|G|5|H|7|10|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

Switch to Java 9 and save your time, <code>Process</code> has <code>pid</code> property now, check the documentation <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Process.html#pid--" rel="nofollow noreferrer">here</a> for details. You can easily kill another process like this:

<pre><code>long pid = process.pid();
Runtime.getRuntime().exec("kill " + pid);
</code></pre>

Under Windows OS.

I start a sub-process via a Runtime.getRuntime().exec();
I want to send a "ctrl-c" to the process to stop it.

I did a small example, with Runtime.getRuntime().exec("ping google.com -n 100000");
The code can be found there : <a href="http://pastebin.com/f6315063f" rel="noreferrer">http://pastebin.com/f6315063f</a>

So far, I tried to send the char '3' (ctrl-C character) via Process outputStream.

Here is a bit of code:

<pre><code> cmd = re.exec("ping google.com -n 10000"); 
 out = new BufferedWriter (new OutputStreamWriter(cmd.getOutputStream()));
 input = new BufferedReader (new InputStreamReader(cmd.getInputStream()));


 char ctrlBreak = (char)3;
 //Different testing way to send the ctrlBreak;
 out.write(ctrlBreak);
 out.flush();
 out.write(ctrlBreak+"\n");
 out.flush();
</code></pre>

I don't want to kill the process, I just want to send a Ctrl-C signal.
How can I do that?

Send Ctrl-C to process open by Java

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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在Windows操作系统下。我通过Runtime.getRuntime().exec()启动子进程；我想向进程发送一个"ctrl-c“来停止它。我用Runtime.getRuntime().exec("ping google.com -n 100000“)做了一个小例子；代码可以在那里找到：到目前为止，我尝试通过进程o...

问将Ctrl-C发送到Java打开的进程
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