【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

 1 package Util;
 2 
 3 import java.io.File;
 4 import java.text.SimpleDateFormat;
 5 import java.util.Date;
 6 
 7 
 8 public class ExportSqlUtil {
 9     public static void main(String[] args) {
10         try {
11             backup("root","950906","station");
12         } catch (Exception e) {
13             // TODO Auto-generated catch block
14             e.printStackTrace();
15         }
16     }
17     public static boolean backup(String username,String password,String database){
18         boolean bool = false;
19         String sqlFilename = database+"_" + new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss").format(new Date()) + ".sql";
20         String cmd = "mysqldump -u "+username+" -p"+password+" --opt "+database+" > d:/"+sqlFilename;
21         
22         try {
23             Process p = Runtime.getRuntime().exec("cmd /C" + cmd);
24             p.waitFor();
25             bool = true;
26         } catch (Exception e) {
27             // TODO Auto-generated catch block
28             e.printStackTrace();
29         }
30         return bool;
31     }
32 }

•  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。