Java ProcessBuilder不会写换行符。

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

public class ProcessBuilderExample {
    public static void main(String[] args) {
        try {
            ProcessBuilder processBuilder = new ProcessBuilder("command", "arg1", "arg2");
            Process process = processBuilder.start();

            // 获取命令执行的输出流
            InputStream inputStream = process.getInputStream();
            BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));

            String line;
            StringBuilder output = new StringBuilder();
            while ((line = reader.readLine()) != null) {
                output.append(line).append(System.getProperty("line.separator"));
            }

            // 输出结果
            System.out.println(output.toString());

            // 等待命令执行完成
            int exitCode = process.waitFor();
            System.out.println("命令执行完成，退出码：" + exitCode);
        } catch (IOException | InterruptedException e) {
            e.printStackTrace();
        }
    }
}