我正在尝试通过Java执行二进制文件（用'C'编写），而二进制文件已成功执行。在按下“Enter”键之前，它不会将执行控制权返回给此代码（被阻止）。由于这个问题，'prcs.waitfor() == 0' 永远不会执行，用户不知道二进制执行是否成功。我试图在 OutputStream 上创建 BufferedWriter 以发送“Enter”击键（//r），但它不起作用。这里需要做什么，以便执行控制回到这段代码并执行'prcs.waitfor() ==0'。我需要继续执行另一个命令，该命令取决于第一个命令的成功执行。我坚持这个:(
// Start ProcessBuilder, 'str' contains a command
ProcessBuilder pbuilder = new ProcessBuilder(str);
pbuilder.directory(new File("/root/workspace/Project1"));
pbuilder.redirectErrorStream(true);
Process prcs = pbuilder.start();
AForm.execStatustext.append("\n=> Process is:" + prcs);
// Read output
StringBuilder out = new StringBuilder();
BufferedReader bfrd = new BufferedReader(new InputStreamReader(process.getInputStream()));
String current_line = null, previous_line = null;
while ((current_line = bfrd.readLine()) != null) {
if (!line.equals(previous_line)) {
previous_line = current_line;
out.append(current_line).append('\n');
//System.out.println(line);
}
}
//process.getInputStream().close();
// Send 'Enter' keystroke through BufferedWriter to get control back
BufferedWriter bfrout = new BufferedWriter(new OutputStreamWriter(prcs.getOutputStream()));
bfrout.write("\\r");
bfrout.newLine();
bfrout.flush();
bfrout.write("\\r");
bfrout.newLine();
bfrout.flush();
//process.getOutputStream().close();*/
if (prcs.waitFor() == 0)
System.out.println("Commands executed successfully");
System.exit(0);