Html 如何添加从数据库获取数据id的按钮并执行操作
我正在制作一个连接到数据库“peoples”的代码,从那里获取数据,我需要做的是使用一个按钮获取单击该按钮的人的id,并删除或更新。问题是我不知道如何在perl中实现这一点,因为在其他语言中我做到了Html 如何添加从数据库获取数据id的按钮并执行操作,html,perl,Html,Perl,我正在制作一个连接到数据库“peoples”的代码,从那里获取数据,我需要做的是使用一个按钮获取单击该按钮的人的id,并删除或更新。问题是我不知道如何在perl中实现这一点,因为在其他语言中我做到了 my $q= new CGI; print $q->header; print $q-> start_html( -title => "Main", -style => {-src =>'/media/css/ui-lightness/jquery-
my $q= new CGI;
print $q->header;
print $q-> start_html(
-title => "Main",
-style => {-src =>'/media/css/ui-lightness/jquery-ui-1.10.3.custom.css" rel="stylesheet' },
-script => [
{ -src=>'/media/js/jquery-1.9.1.js'},
{ -src=>'/media/js/jquery-ui-1.10.3.custom.js' }
]
);
print $q->start_form;
print $q->table({},
$q->Tr(
$q->th('Name', 'Surname', 'Age')
));
# Connect to the database
## mysql user database name
my $db = "student";
## mysql database user name
my $user = "root";
## mysql database password
my $pass = "";
## user hostname : This should be "localhost" but it can be diffrent too
my $host="127.0.0.1";
## SQL query
my $query = "select Name,Surname,Age from student";
my $dbh = DBI->connect("DBI:mysql:$db:$host", $user, $pass);
my $sqlQuery = $dbh->prepare($query)
or die "Can't prepare $query: $dbh->errstr\n";
my $rv = $sqlQuery->execute
or die "can't execute the query: $sqlQuery->errstr";
while ( my ($Name, $Surname, $Age) = $sqlQuery->fetchrow_array() ) {
print STDOUT "$Name $Surname $Age";
$q->button( print $q->button(
-id => 'leletebtn',
-name => 'submit_form',
-value => 'Delete',
)
)
}
print $q->end_form;
print $q->end_html;
有很多教程。您必须使用DBI:
它是连接的,第一个代码可以工作,但delete.pl不能。请尝试编辑我的代码,如果你发现哪里是错误的。我是perl新手“您必须使用DBI”-这当然是一个非常好的主意,但我认为您并非绝对必须:-)除非您知道自己在做什么,否则您绝对应该使用DBI?:-)
my $lastname = 'test';
my $dbh = DBI->connect('DBI:Oracle:people')
or die "Couldn't connect to database: " . DBI->errstr;#connect
my $sth = $dbh->prepare('SELECT id,uid FROM people WHERE lastname = ?')
or die "Couldn't prepare statement: " . $dbh->errstr;#prepare
$sth->execute($lastname); # Execute the query
while ( my $ref = $sth->fetchrow_hashref() ) {
print "$$ref{'id'} \t $$ref{'uid'}\n";
}