java中运行bat并获取结果

多的不说，这些名词都是很简单易懂的，直接上代码！

    public String runbat(String batName) {
        String str = null;
        try {
            Process ps = Runtime.getRuntime().exec(batName);
            InputStream in = ps.getInputStream();
            byte[] sb = readStream(in);
            str = new String(sb, "UTF-8");
            System.out.println(str);
            in.close();
            ps.waitFor();
        } catch (Exception e) {
            e.printStackTrace();
        }
        System.out.println("\nchild thread done");
        return str;
    }

这里写下用到的工具方法，把流转成字符串输出：

public static byte[] readStream(InputStream inStream) throws Exception {
        ByteArrayOutputStream outSteam = new ByteArrayOutputStream();
        byte[] buffer = new byte[1024];
        int len = -1;
        while ((len = inStream.read(buffer)) != -1) {
            outSteam.write(buffer, 0, len);
        }
        outSteam.close();
        return outSteam.toByteArray();
    }

注意

若会弹出cmd框，并且不能自动关闭，则在bat文件最后加上

exit