java - 如何让 ProcessBuilder 处理嵌套引号？

Question

我在获取 ProcessBuilder 时遇到问题以与 cmd.exe 控制台相同的方式执行命令行。

1. 命令行是:show_parameters.bat jdk-1_5_0_22-windows-i586-p.exe/s/v"/qn INSTALLDIR=\"C:\Program Files (x86)\gili\""
2. 批处理文件 show_parameters.bat(如下)显示了 cmd.exe 将命令行分成的标记。
3. Testcase.java(下)尝试使用 ProcessBuilder 执行与 #1 相同的命令行。

4. 如果你运行 show_parameters.bat jdk-1_5_0_22-windows-i586-p.exe/s/v"/qn INSTALLDIR=\"C:\Program Files (x86)\gili\"" 你会得到:

   Console tokens:
   
   jdk-1_5_0_22-windows-i586-p.exe
   /s
   /v"/qn INSTALLDIR=\"C:\Program
   Files
   (x86)\gili\""
   

5. 如果你运行 java Testcase 你会得到:

   Java tokens: [cmd.exe, /c, show_parameters.bat, jdk-1_5_0_22-windows-i586-p.exe,
    /s, /v"/qn INSTALLDIR=\"C:\Program Files (x86)\gili\""]
   
   Console tokens:
   
   jdk-1_5_0_22-windows-i586-p.exe
   /s
   "/v"/qn
   INSTALLDIR
   \"C:\Program Files (x86)\gili\"
   ""
   

是否有可能导致 ProcessBuilder 产生与 #1 相同的标记化？或者这是 Java 中的错误？

---

显示参数.bat

@echo off
SETLOCAL ENABLEDELAYEDEXPANSION

    echo.
    echo Console tokens:
    echo.

    :again
    if [%1] == [] goto end
      echo %1
      shift
      goto again
    :end

测试用例.java

import java.io.*;

public class Testcase
{

    public static void main(String[] args) throws IOException, InterruptedException
    {
        String base = "C:\\Program Files (x86)\\gili";
        ProcessBuilder processBuilder = new ProcessBuilder("cmd.exe", "/c", "show_parameters.bat", "jdk-1_5_0_22-windows-i586-p.exe", "/s",
                "/v\"/qn INSTALLDIR=\\\"" + base + "\\\"\"");
        processBuilder.redirectErrorStream(true);
        System.out.println("Java tokens: " + processBuilder.command());
        Process process = processBuilder.start();
        BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream()));
        while (true)
        {
            String line = in.readLine();
            if (line == null)
                break;
            System.out.println(line);
        }
    }
}

Answer 1

这样试试:

ProcessBuilder processBuilder = new ProcessBuilder("cmd.exe", "/c", "show_parameters.bat jdk-1_5_0_22-windows-i586-p.exe /s /v\"/qn INSTALLDIR=\\\"" + base + "\\\"\"");

或

ProcessBuilder processBuilder = new ProcessBuilder("cmd.exe", "/c", "show_parameters.bat jdk-1_5_0_22-windows-i586-p.exe /s /v\"/qn INSTALLDIR='" + base + "'\"");

"/c"只需要一个参数 - 将在 CMD 中执行的命令