Perl连接mysql数据库

#!/usr/bin/perl

# Use mandatory external modules
use strict;
use warnings;

use DBI;

my $host     = '192.168.90.X';
my $user     = 'test';
my $pass     = 'test';
my $port     = '3306';
my $database = 'extmail';
my $table    = 'alias';


my $filename = '/usr/local/src/user.txt';
open FH, "< $filename" or die "can't open $filename  ..... ($!)";




# connect to servers (this)
our $this_dbh = &MysqlConnect( $host, $port, $user, $pass );
print  "ERROR: Can't connect to MySQL (host = $host:$port, user = $user)!"
  if ( !$this_dbh );


# insert user data
foreach () {
        chomp $_;
        my $mailbox = "$_\@cisco.cn";
        my $alias_mailbox = "$_\@sales\.cisco.cn";
        print "$mailbox\n";
        print "$alias_mailbox\n";

    my $sql = "INSERT INTO $database\.$table (address, goto) VALUES ('$mailbox', '$alias_mailbox')";
    print "$sql\n";

    my $quota_status = &MysqlChange( $this_dbh, $sql );

}



# Get user quota
my $sql = "select * from $database\.$table";
print "$sql\n";

my $user_list = &MysqlQuery( $this_dbh, $sql );
print "$user_list\n";






#-----------------------------------------------------------------
sub MysqlConnect(

) {
    my ( $host, $port, $user, $pass ) = @_;

    my $dsn = "DBI:mysql:host=$host;port=$port";
    return DBI->connect( $dsn, $user, $pass, { PrintError => 0 } );
}


#-----------------------------------------------------------------
sub MysqlQuery() {
    my ( $dbh, $change ) = @_;
    my $sth = $dbh->do($change);

}