需要运行sqlcmd来控制到数据库的本地连接。当我试图读取OutputStream以获得sql“提示”时，read（）方法根本不会返回。
尝试使用ProcessBuilder和Runtime运行该进程。getRuntime（）。exec（）也尝试在“cmd /c”下运行。当从命令行运行sqlcmd时，我得到类似“1〉"的提示。预期在OutputStream中看到该提示...
这是我代码-我只是调用以“sqlcmd”开头的
代码示例：

package org.example;

import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
    public static void main(String[] args) throws Exception {

        System.out.println(start("sqlcmd"));
        System.out.println(send("select * from spt_monitor\ngo\n"));
    }

    public static Process process = null;

    public static String start(String command) throws Exception {
        if(process != null && process.isAlive()) {
            throw new Exception("another session already exists");
        } else {
            ProcessBuilder builder = new ProcessBuilder(command);
            builder.redirectErrorStream(true);
            process = builder.start();
            return "";//response();
        }
    }

    public static String send(String command) throws Exception {
        if(process == null || !process.isAlive()) {
            throw new Exception("no local session exists");
        } else {
            process.getOutputStream().write(command.getBytes());
            process.getOutputStream().flush();
            return response();
        }
    }

    private static String response() throws IOException {
        StringBuilder sb = new StringBuilder();
        char[] array = new char[1024];

        System.out.println("reading output...");
        try (InputStreamReader isr = new InputStreamReader(process.getInputStream())) {
            int len;
            do {
                len = isr.read(array);
                if(len > 0)
                    sb.append(String.valueOf(array));
            } while (len > 0);
        }

        return sb.toString();
    }
}