How to display only an excerpt of the content with custom post types?

<?php
/*
Template Name: second
*/
?>


<?php get_header(); ?>


<?php query_posts(array('post_type'=>'event')); ?>
    <?php if(have_posts()) while(have_posts()) : the_post(); ?>
    <div id="post-<?php the_ID(); ?>" class="entry">
        <div class="thumbnail"><?php the_post_thumbnail('full'); ?></div>
        <h1 class="title"><?php the_title(); ?></h1>
        <div class="content page">
            <?php the_content(); ?>
            <?php wp_link_pages(array('before' => '<div class="page-link">'.__('Pages', 'cpotheme').':', 'after' => '</div>')); ?>
        </div>
    </div>
    <?php endwhile; ?>


<?php get_sidebar(); ?>
<?php get_footer(); ?>

The page acts like an index.php What should I amend in order to make the title as the link to the full page and make display only an excerpt of the content?

You only need two small changes (1st and 3rd lines), though I also took the liberty of tweaking the classes on the div to what seemed more appropriate:

<h1 class="title"><a href="https://wordpress.stackexchange.com/questions/67750/<?php the_permalink(); ?>"><?php the_title(); ?></a></h1>
<div class="excerpt event">
   <?php the_excerpt(); ?>
   <?php wp_link_pages(array('before' => '<div class="page-link">'.__('Pages', 'cpotheme').':', 'after' => '</div>')); ?>
</div>