Question

package test_cmd_command;

import java.io.BufferedReader;
import java.io.IOException; 
import java.io.InputStreamReader;
import java.time.LocalDateTime;


public class CommandLine {

public static String executeCommand(String cliCommand) {
    String s = null;
    BufferedReader stdInput = null;
    BufferedReader stdError = null;
    String error = "";
    String output = "";
    try {
        ProcessBuilder pb1 = new ProcessBuilder(
                "bash",
                "-c",
                cliCommand);

        pb1.redirectErrorStream(true);
        Process p = pb1.start();

        stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));
        stdError = new BufferedReader(new InputStreamReader(p.getErrorStream()));

        while ((s = stdInput.readLine()) != null) {
            output += "\n" + s;
        }
        //System.out.println("Here is the standard error of the command (if any):\n");
        while ((s = stdError.readLine()) != null) {
            //System.out.println(">> "+s.toString());
            error += "\n" + s;
        }

    } catch (IOException e) {
        System.out.println("exception happened - here's what I know: \n" + e.getMessage());
    } finally {
        try {
            stdInput.close();
            stdError.close();
        } catch (IOException e) {

        }
    }
    String returnValue = null;
    if (output != null && error != null) {
        returnValue = output + "\n" + ":  " + error;
    } else if (output != null) {
        returnValue = output;
    }
    return returnValue;
}
}

“ csc -version” 在终端中运行，但不是在MAC上的Java程序中运行。它给出输出“找不到bash命令” 。有什么办法可以解决这个问题。该程序可以正确运行其他命令，例如 javac -version 等。我正在Windows上的 MAC上上运行此程序。

Answer 1

这对我有用

export PATH=/Library/Frameworks/Mono.framework/Versions/Versions/bin/:${PATH}

我像这样运行命令“ export PATH = / Library / Frameworks / Mono.framework / Versions / Versions / bin /：$ {PATH}; csc -version” ，它可以正常工作并返回版本的csc。

csc -version在终端中运行，但不是从我的Java程序MAC中运行

1 个答案: