所以我正在开展一个学校项目,在那里我被要求编写perl cgi脚本来创建一个社交网站。
我为不同的页面创建了多个子程序,但我的问题是,当我尝试单独执行每个子程序时,它工作正常,但是当我尝试通过其他一些子程序运行它时,它只是将我重定向到我的第一页。
例如:这是我的新用户页面代码:
#!/usr/bin/perl -w
use CGI qw/:all/;
use CGI::Carp qw/fatalsToBrowser warningsToBrowser/;
my $cgi = new CGI;
sub main() {
print page_header();
warningsToBrowser(1);
first();
page_trailer();
}
sub page_header {
return header(-charset => "utf-8"),
start_html(-title => 'Matelook',-style => "matelook.css"),
body({-background =>"background.jpg"}),
div({-class => "matelook_heading"}, "matelook");
}
sub page_trailer {
my $html = "";
$html .= join("", map("<!-- $_=".param($_)." -->\n", param())) if $debug;
$html .= end_html;
return $html;
}
sub new_user {
$fullname = param("fullname") || '';
$newun = param("newun") || '';
$newpass = param("newpass") || '';
$email = param("email") || '';
$program = param("program") || '';
if(param("Save")){
$data = "full_name=$fullname \n
username=$newun \n
password=$newpass \n
email=$email \n
program=$program \n";
$location = "dataset-medium/$newun";
mkdir $location, 0755;
open($f,'>',"$location/user.txt");
print $f $data;
print $data,"\n";
print "Data Saved !! ";
}
else{
print start_form,"\n";
print "Enter Full Name :\n", textfield("fullname");
print "New Username :\n", textfield('newun'),"\n";
print "New Password :\n", textfield('newpass'),"\n";
print "Email:\n",textfield('email'),"\n";
print "Program:\n",textfield('program'),"\n";
print submit({-name =>"Save",-class => "matelook_button"});
print end_form,"\n";
}
}
sub first{
if(param("New User")){
new_user();
}
else{
print start_form,"\n";
print submit({-class => "matelook_button_first ",-name => 'New User'}),"\n";
print end_form,"\n";
}
}
main();
如果我尝试使用子程序“first”调用相同的子程序并单击“保存”按钮,它会将我重定向到我调用new_user的“First”页面。
任何帮助将不胜感激。
由于
答案 0 :(得分:1)
您的程序具有以下结构:
sub new_user {
if (param("Save")){
save();
} else {
show_input_form();
}
}
if (param("New User")){
new_user();
} else {
show_menu();
}
问题是输入表单没有设置pararm('New User')
,因此当您点击new_user
时,您不会在Save
结束。
解决方案1:
在名称为New User
且值为1
的输入表单中添加隐藏的输入。
解决方案2:
更改
if (param("New User"))
到
if (param("New User") || param('Save'))
解决方案3:
将程序结构更改为
if (param("New User")){
show_input_form();
}
elsif (param("Save")){
save();
}
else {
show_menu();
}