使用mojolicious实现基本用户认证功能

本示例代码使用mojolicious框架实现基本的用户认证功能，包括用户注册、登录和注销等操作。

# 引入mojolicious模块
use Mojolicious::Lite;

# 配置持久化存储
app->sessions->cookie_name('myapp');
app->secrets(['mysecret']);

# 注册页面
get '/register' => sub {
    my $self = shift;
    $self->render('register');
};

# 注册逻辑
post '/register' => sub {
    my $self = shift;
    my $username = $self->param('username');
    my $password = $self->param('password');
    # 存储用户信息
    $self->session(username => $username);
    $self->session(password => $password);
    # 跳转到登录页面
    $self->redirect_to('/login');
};

# 登录页面
get '/login' => sub {
    my $self = shift;
    $self->render('login');
};

# 登录逻辑
post '/login' => sub {
    my $self = shift;
    my $username = $self->param('username');
    my $password = $self->param('password');
    # 判断用户信息是否匹配
    if ($self->session('username') eq $username and $self->session('password') eq $password) {
        # 存储登录状态
        $self->session(logged_in => 1);
        # 跳转到首页
        $self->redirect_to('/');
    } else {
        # 跳转回登录页面
        $self->redirect_to('/login');
    }
};

# 首页
get '/' => sub {
    my $self = shift;
    # 判断是否登录
    if ($self->session('logged_in')) {
        $self->render('index');
    } else {
        # 跳转到登录页面
        $self->redirect_to('/login');
    }
};

# 注销逻辑
get '/logout' => sub {
    my $self = shift;
    # 清除登录状态
    $self->session(logged_in => undef);
    # 跳转到登录页面
    $self->redirect_to('/login');
};

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