java程序实现数据库备份与恢复

做一个项目中的数据库备份与恢复(MSSQL)
数据库备份
String webtruepath=getServletContext().getRealPath(request.getServletPath());//取Servlet的真实路径
java.io.File file=new java.io.File(webtruepath);
file=file.getParentFile();
String path=file.getPath()+"\\..\\WEB-INF\\lib\\"+name+".dbbak";//name文件名
String bakSQL="backup database school to disk=? with init";//SQL语句
java.sql.PreparedStatement bak=DBS.getConnection().prepareStatement(bakSQL);
bak.setString(1,path);//path必须是绝对路径
if(!bak.execute())over="备份成功";
else over="备份失败";
bak.close();
数据库恢复
if(!DBS.close()){
                    over="关闭所有链接失败";
}else{
                    String webtruepath=getServletContext().getRealPath(request.getServletPath());
                    java.io.File file=new java.io.File(webtruepath);
                    file=file.getParentFile();
                    String path=file.getPath()+"\\..\\WEB-INF\\lib\\"+name;
                    String reSQL="restore database school from disk=? with replace";
                    Class.forName(DBInf.getDriverClassName());
                    java.sql.Connection con=DriverManager.getConnection(DBInf.getMester());
                    java.sql.PreparedStatement reStmt=con.prepareStatement(reSQL);
                    reStmt.setString(1,path);//path必须是绝对路径
                    if(!reStmt.execute())over="恢复成功";
                    else over="恢复失败";
                    reStmt.close();
                    con.close();
}
恢复的时候,有点烦,要关闭所有与数据库的连接,这里我连的是mestar,其实可以
jdbc:microsoft:sqlserver://localhost:1433;user=username;password=pass
连接数据库服务器,不连指定的数据库.这样也可以.