java如何执行git命令

要在Java中执行Git命令，您可以使用Java的Runtime类或ProcessBuilder类

方法1：使用Runtime类

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main {
    public static void main(String[] args) {
        try {
            String gitCommand = "git --version";
            Process process = Runtime.getRuntime().exec(gitCommand);

            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
            String line;
            while ((line = reader.readLine()) != null) {
                System.out.println(line);
            }

            process.waitFor();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

方法2：使用ProcessBuilder类

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

public class Main {
    public static void main(String[] args) {
        try {
            String[] gitCommand = {"git", "--version"};
            ProcessBuilder processBuilder = new ProcessBuilder(Arrays.asList(gitCommand));
            processBuilder.redirectErrorStream(true);

            Process process = processBuilder.start();

            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
            String line;
            while ((line = reader.readLine()) != null) {
                System.out.println(line);
            }

            process.waitFor();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

这两个示例都会执行git --version命令并打印输出结果。您可以根据需要修改gitCommand数组来执行其他Git命令。请注意，这些示例假设您的系统已经安装了Git并将其添加到了环境变量中。如果尚未安装，您需要先安装Git。