java - Linux从Java程序复制文件

Question

我用 getRuntime() API 编写了一个小的 java 代码来将文件从一个目录复制到另一个目录，它失败了，我不明白为什么？当我从 shell 运行命令时它运行正常，任何人都可以，请告诉我我正在做的错误

    private static void copyFilesLinux(String strSource, String strDestination) {

    String s;
    Process p;
    try {
        // cp -R "/tmp/S1/"*  "/tmp/D1/"
        p = Runtime.getRuntime().exec(
                "cp -R '" + strSource + "/'* '" + strDestination + "/'");
        System.out.println("cp -R \"" + strSource + "/\"* \"" + strDestination + "/\"");
        System.out.println("cp -R '" + strSource + "/'* '" + strDestination + "/'");
        System.out.println(p.toString());
        BufferedReader br = new BufferedReader(new InputStreamReader(
                p.getInputStream()));
        while ((s = br.readLine()) != null)
            System.out.println("line: " + s);
        p.waitFor();
        System.out.println("exit: " + p.exitValue());
        p.destroy();
    }
    catch (InterruptedException iex) {
        iex.printStackTrace();
    }
    catch (IOException iox) {
        iox.printStackTrace();
    }
    catch (Exception e) {
        e.printStackTrace();
    }

}

输出:

cp -R "/tmp/S1/"* "/tmp/D1/"

cp -R '/tmp/S1/'* '/tmp/D1/'

java.lang.UNIXProcess@525483cd

exit: 1

Answer 1

它与下面的代码一起工作，

            String[] b = new String[] {"bash", "-c", "cp -R \"" + strSource + "/\"* \"" + strDestination + "/\""};  
        p = Runtime.getRuntime().exec(b);

我用谷歌搜索了一下，找到了链接

http://www.coderanch.com/t/423573/java/java/Passing-wilcard-Runtime-exec-command