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[英]How to interact with a C console application from within my Java application
[英]how to in java start and interact with the console application
我有一個用c編寫的控制台應用程序,它在控制台中運行,並且具有自己的偽控制台。 通過它,我配置此應用程序並運行它。 一切都好。 現在,我試圖在Java應用程序中運行此應用程序,但出現了問題。 例如,我使用sh
ProcessBuilder builder = new ProcessBuilder("sh");
builder.redirectErrorStream(true);
Process process = builder.start();
try (BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream()));
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(process.getOutputStream()))) {
bw.write("echo lol");
while (true) {
// System.out.println(process.isAlive());
if (br.ready()) {
System.out.println(br.readLine());
}
}
} catch (Exception ex) {
ex.printStackTrace();
}
主要思想是在控制台中運行該應用程序並向其發送一些命令。
因此,經過一些實驗,我得到了答案。
ProcessBuilder builder = new ProcessBuilder("sh");
Process process = builder.start();
BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream()));
new Thread(new Runnable() {
public void run() {
Scanner scan = new Scanner(br);
while (true) {
try {
if (!br.ready()) break;
System.out.println(br.readLine());
} catch (IOException e) {
e.printStackTrace();
}
}
}
}).start();
PrintWriter bw = new PrintWriter(process.getOutputStream());
bw.println("echo Hello World");
bw.println("echo lol");
bw.flush();
bw.close();
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