【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。