用perl拜候mysql数据库[MySQL防范]

一. 安装DBI模块

步骤1:

从TOOLS栏目中下载DBI.zip,下载完后用winzip解开到一个temp目录,共有三个文件:

Readme

DBI.ppd

DBI.tar.gz

步骤2:

在Dos窗口下,temp目录中运行下面的DOS号令:

ppm install DBI.ppd

假如提醒无效号令,可在perl/bin目录下运行

二. 安装DBD-MySQL模块

从软件下载中下载DBD-Mysql.zip,安装办法同一.

三. 预备数据库

启动mysql,首先成立一个数据库mydata,然后成立一个表address

mysql> create database mydata;

Query OK, 1 row affected (0.00 sec)

mysql> use mydata;

Database changed

mysql> create table address (

-> id int(5) not null,

-> name varchar(40) not null,

-> email varchar(50) not null,

-> telephone int(12) null);

Query OK, 0 rows affected (0.05 sec)

输入些数据:

mysql> insert into address values (

-> 1,’Nighthawk’,’nighthawk@163.net’,92384092);

Query OK, 1 row affected (0.00 sec)

四. 下面用perl程序来插入若干记录并做查询.

use DBI;

#衔接数据库mydata

my $dbh = DBI->connect(’DBI:mysql:mydata’) or die "无法衔接数据库: " . DBI->errstr;

print "插入若干记录n";

my $sth = $dbh->prepare(q{

INSERT INTO address (id, name,email,telephone) VALUES (?, ?, ?, ?)

}) });

print "输入记录,回车完毕:";

while ($inputdata =<>) {

chop $inputdata;

last unless($inputdata);

my ($id, $name,$email, $tel) = split( /,/, $inputdata);

$sth->execute($id, $name, $email,$tel)

}

# $dbh->commit;

print "下面按照输入的名字打印出EMAIL地址和电话n";

my $sth = $dbh->prepare(’SELECT * FROM address WHERE name=?’)

or die $dbh->errstr;

print "请输入姓名,回车完毕:";

while ($inputname =<>) {

my @data;

chomp $inputname;

last unless($inputname);

$sth->execute($inputname) or die "错误: " . $sth->errstr;

while (@data = $sth->fetchrow_array()) {

print "Email:$data[2]t Telephone:$data[3]n";

}

}

#断开衔接

$dbh->disconnect;