【Java】Java运行cmd命令直接导出.sql文件

• Java中的Runtime.getRuntime().exec(commandStr)可以调用执行cmd命令

 package Util;

 import java.io.File;
 import java.text.SimpleDateFormat;
 import java.util.Date;

 public class ExportSqlUtil {
     public static void main(String[] args) {
         try {
             backup("root","950906","station");
         } catch (Exception e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         }
     }
     public static boolean backup(String username,String password,String database){
         boolean bool = false;
         String sqlFilename = database+"_" + new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss").format(new Date()) + ".sql";
         String cmd = "mysqldump -u "+username+" -p"+password+" --opt "+database+" > d:/"+sqlFilename;

         try {
             Process p = Runtime.getRuntime().exec("cmd /C" + cmd);
             p.waitFor();
             bool = true;
         } catch (Exception e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         }
         return bool;
     }
 }

• 其中Process新建进程p，表示当前线程等待process这个线程执行完毕后，继续向下执行。