Question

我正在尝试用Java编写一些东西来自动导入证书。在命令shell中输入此命令时：

    keytool -import -keystore c:\.truststore -alias xenv -file cacert.pem

它问我2个问题：密码，如果我想确认。在Python中，我可以使用subprocess.Popen，如下所示：

p = subprocess.Popen("keytool","-import","-keystore","c:\\.truststore","-alias","xenv","-file","cacert.pem", stdin=subprocess.PIPE, stdout=subprocess.PIPE)
stdout, stderr = p.communicate("password\n" + "y\n")

我现在正尝试在Java中做类似的事情。经过几个小时的游戏后，我想我已走上正轨，但我无法让它发挥作用。知道我做错了什么吗？提前谢谢！

import java.io.*;

public class PropertyTest {

    public static void main(String[] args) throws IOException {
        ProcessBuilder pb = new ProcessBuilder("cmd", "/c", "keytool", "-import", "-keystore", "c:\\.truststore", "-alias", "xenv", "-file", "c:\\cacert.pem");
        pb.redirectErrorStream(true);
        Process p = pb.start();
        OutputStream out = p.getOutputStream();
        out.write("password\n".getBytes());
        out.write("y\n".getBytes());
    }
}

Answer 1

这很有用。我把它改成了BufferedWriter并在我完成后刷新并关闭它。希望这可以帮助其他人解决类似的问题！

    ProcessBuilder pb = new ProcessBuilder("cmd", "/c", "keytool", "-import", "-keystore", "c:\\.truststore", "-alias", "alias", "-file", "c:\\cacert.pem");
    pb.redirectErrorStream(true);
    Process p = pb.start();
    BufferedWriter out = new BufferedWriter(new OutputStreamWriter(p.getOutputStream()));
    out.write("allgoodthings\n");
    out.write("y\n");
    out.flush();
    out.close();

在Java中将用户输入发送到控制台

1 个答案: