问题 sshpass 在 java 上使用 Runtime.getRuntime().exec，但在 cmd 上调优

Question

有人可以解决这个问题吗？我使用 sshpass 在 java 上传输文件。执行这个命令

Process proc = Runtime.getRuntime().exec(new String[] {"sshpass","-p", "password","scp","-r",getContext().getServletContext().getRealPath ("/WEB-INF/file/"+today)+"/Name@myip:/cygdrive/d/file"});

在 java 上使用 runtime.exec 并没有显示错误，但在命令行上运行良好。

我的代码

try {

    Process proc = Runtime.getRuntime().exec(new String[] {"sshpass","-p", "password","scp","-r",getContext().getServletContext().getRealPath("/WEB-INF/file/"+today)+"/ Name@myip:/cygdrive/d/file"});

    // System.out.println(sshStr);
    BufferedReader read = new BufferedReader(new InputStreamReader(
    proc.getInputStream()));

    //--------------------check---------------------
    printStream(proc.getInputStream(), "OUTPUT");
    printStream(proc.getErrorStream(), "ERROR");
    //--------------------check---------------------

    try {
        proc.waitFor();
    } catch (InterruptedException e) {
        System.out.println(e.getMessage());
    }
    while (read.ready()) {
        System.out.println(read.readLine());
    }
} catch (IOException e) {
    System.out.println(e.getMessage());
}

Answer 1

使用Runtime.exec(String)，字符串参数在空格上分割，无论您添加了哪些引号。您必须改用Runtime.exec(String[])。这导致：

Process proc = Runtime.getRuntime().exec(new String[] {
        "sshpass",
        "-p", "password",
        "scp",
        "-r", getContext().getServletContext().getRealPath("/WEB-INF/file/" + today) + "/ Name@myip:/cygdrive/d/file"
    });