無法運行程序「...」錯誤= 2，沒有這樣的文件或目錄（java）

Question

我想要製作一個Java程序，將爲我在我的MacBook上建立一個SSH連接。它提示我輸入用戶名，然後輸入IP地址，然後輸入「ssh username @ ip」。

下面是我的代碼：

import java.io.BufferedReader; 
import java.io.InputStreamReader; 
import java.util.Scanner; 

public class SSH { 
    public static void main(String[] args) throws Exception { 
    boolean rep = true; 
    String username = (null); 
    String IPAdress = (null); 
    while (rep) { 
     Scanner scanner = new Scanner(System.in); 
     System.out.print("Username: "); 
     username = scanner.next(); 
     System.out.print("\nIP Adress: "); 
     IPAdress = scanner.next(); 
     System.out.println("\n\nIs this correct?\nUsername: " + username + "\nIP Adress: " + IPAdress + "\nY/N"); 
     char responce = scanner.next().charAt(0); 

     if (responce == 'Y' || responce == 'y') { 
      rep = false; 
      scanner.close(); 
     } else if (responce == 'N' || responce == 'n') { 

     } else { 
      Error displayErrorMessage = new Error(); 
      displayErrorMessage.displayError(); 
     } 
    } 
    String SSHStartup = username + "@" + IPAdress; 
    System.out.println("Running command: ssh " + SSHStartup); 
    String[] command = { "/bin/bash, -c , ssh " + SSHStartup }; 
    Process p = Runtime.getRuntime().exec(command); 
    p.waitFor(); 
    BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream())); 
    String line = ""; 
    StringBuffer output = new StringBuffer(); 
    while ((line = reader.readLine()) != null) { 
     output.append(line + "\n"); 
    } 
} 
} 

我知道，它的雜亂，現在好縮進，但不是執行命令，它給了我這樣的：

Exception in thread "main" java.io.IOException: Cannot run program "/bin/bash, -c , ssh root@(ip here)": error=2, No such file or directory 
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048) 
at java.lang.Runtime.exec(Runtime.java:620) 
at java.lang.Runtime.exec(Runtime.java:485) 
at SSH.main(SSH.java:32) 
Caused by: java.io.IOException: error=2, No such file or directory 
at java.lang.UNIXProcess.forkAndExec(Native Method) 
at java.lang.UNIXProcess.<init>(UNIXProcess.java:248) 
at java.lang.ProcessImpl.start(ProcessImpl.java:134) 
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029) 
... 3 more 

爲目的這篇文章中，我已經刪除了IP地址，但是當我編譯並運行它時，我嘗試了實際的一個，它給了我同樣的錯誤。

幫助？

Answer 1

String[] command = { "/bin/bash, -c , ssh " + SSHStartup }; 
Process p = Runtime.getRuntime().exec(command); 

你command數組包含一個值，即字符串 「/斌/慶典，-c，SSH ...」。 Java正在嘗試並且無法執行具有該名稱的文件。

你可能是爲了構建包含command命令及其作爲字符串的字符序列參數，而不是一個字符串：

String[] command = { "/bin/bash", "-c", "ssh " + SSHStartup };