Java 调用执行CMD不弹出黑框

浅浅的花香味﹌ 2022-05-19 06:28 328阅读 0赞

本文参考：[http://srocker.iteye.com/blog/1157056][http_srocker.iteye.com_blog_1157056]  
常规调用方式：（这个肯定会弹一下黑框）

Runtime.getRuntime().exec("cmd /c start XXX.bat");  
    Runtime.getRuntime().exec("cmd /c start cmd命令");

解决不弹框只需要“start”后面加一个参数“/b”就行：

Runtime.getRuntime().exec("cmd /c start /b XXX.bat");  
    Runtime.getRuntime().exec("cmd /c start /b cmd命令");

封装成工具类使用：

package system.call.cmd;
    
    import java.io.BufferedReader;
    import java.io.InputStreamReader;
    
    public class CommandNoCmd { 
        public static String exeCmd(String commandStr)
        {
            BufferedReader br = null;
            StringBuilder sb = new StringBuilder();
            try
            {
                Process p = Runtime.getRuntime().exec("cmd /c start /b "+commandStr);
                br = new BufferedReader(new InputStreamReader(p.getInputStream()));
                String line = null;
                while ((line = br.readLine()) != null)
                {
                    sb.append(line + "\n");
                }
            } catch (Exception e)
            {
                e.printStackTrace();
            } finally
            {
                if (br != null)
                {
                    try
                    {
                        br.close();
                    } catch (Exception e)
                    {
                        e.printStackTrace();
                    }
                }
            }
            return sb.toString();
        }
        // public static void main(String[] args) { 
        // String commandStr = "ipconfig";
        // System.out.println(Command.exeCmd(commandStr));
        // }
    }

CommandNoCmd中已经自动加上了`cmd /c start /b` ，所以调用的时候只需要使用`CommandNoCmd.exeCmd(cmd命令);`即可

[http_srocker.iteye.com_blog_1157056]: http://srocker.iteye.com/blog/1157056