从Java code运行批处理文件 [英] Run batch file from Java code

问题描述

我试图运行一个批处理文件，该文件是从我的Java可执行其他目录。我有以下的code：

I am trying to run a batch file that is in another directory from my Java executable. I have the following code :

    try {
        Process p =  Runtime.getRuntime().exec("cmd /c start \"C:\\Program Files\\salesforce.com\\Data Loader\\cliq_process\\upsert\\upsert.bat\"") ;           
    } catch (IOException ex) {
    }

其结果是，打开程序在程序在运行，并不会访问我公司提供的文件路径根目录下的cmd窗口。

The result is that the program opens a cmd window in the root directory where the program was run at and doesn't access the file path I provided.

推荐答案

而不是的Runtime.exec（字符串命令），您需要使用执行exec（字符串命令，字符串[] envp，文件目录）方法签名：

Rather than Runtime.exec(String command), you need to use the exec(String command, String[] envp, File dir) method signature:

Process p =  Runtime.getRuntime().exec("cmd /c upsert.bat", null, new File("C:\\Program Files\\salesforce.com\\Data Loader\\cliq_process\\upsert"));

但就个人而言，我会使用的ProcessBuilder 来代替，这是一个有点冗长，但更容易使用和调试比的Runtime.exec（ ）。

But personally, I'd use ProcessBuilder instead, which is a little more verbose but much easier to use and debug than Runtime.exec().

List cmdAndArgs = Arrays.asList("cmd", "/c", "upsert.bat");
File dir = new File("C:/Program Files/salesforce.com/Data Loader/cliq_process/upsert");

ProcessBuilder pb = new ProcessBuilder(cmdAndArgs);
pb.directory(dir);
Process p = pb.start();

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