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 程式師世界 >> 編程語言 >> 網頁編程 >> PHP編程 >> 關於PHP編程 >> Using PHP as a Spring MVC View via Quercus(轉)

Using PHP as a Spring MVC View via Quercus(轉)

編輯:關於PHP編程

原貼:

http://blog.caucho.com/2009/04/14/using-php-as-a-spring-mvc-view-via-quercus/

 

This week, I’ve been prepping for a talk on Quercus in which I promised to show a demo of Spring MVC using a PHP view.  So that means that I actually had to do it. :-)  Turns out it was quite easy and PHP makes for a very nice, compact view technology for Spring MVC.  This is a bit of tease since the code for this won’t go out until at least next week, but since a number of people have been asking for this a while, I thought I’d give a preview…

 

First, let me show how it looks by using the sample “ImageDB” application that ships with Spring.  Here’s a screenshot of the app in action:

 

Basically, you upload an image to the page and it keeps track of what you’ve uploaded in a database.  Here are the JSP and PHP views side-by-side:

<%@ page session="false" %> < %@ page import="java.util.List,                  java.util.Iterator,                  org.springframework.samples.imagedb.ImageDescriptor" %>

 

<!– imageList.jsp –>

<html> < body>

<% List images = (List) request.getAttribute("images"); for (Iterator it = images.iterator(); it.hasNext();) { ImageDescriptor image = (ImageDescriptor) it.next(); %> < table border="1" cellspacing="0" cellpadding="5">   <tr><td width="10%">Name</td><td><%= image.getName() %>&nbsp;</td></tr>         <tr><td colspan="2"><img src="imageContent?name=<%= image.getName() %>" height="100"></td></tr>         <tr><td>Description (<%= image.getDescriptionLength() %>)</td><td><%= image.getShortDescription() %>&nbsp;</td></tr> < /table> < p> < % } %>

<p> < table border="1" cellspacing="0" cellpadding="5"> < form action="imageUpload" method="post" encType="multipart/form-data">   <tr><td width="10%">Name</td><td><input type="text" name="name"><br></td></tr>   <tr><td>Content</td><td><input type="file" name="image"><br></td></tr>   <tr><td>Description</td><td><textarea name="description" cols="80" rows="5"></textarea></td></tr>   <tr><td colspan="2"><input type="submit" value="Upload image"></td></tr> < /form> < /table>

<p><a href="clearDatabase">Clear database</a>

</body> < /html>

 

<?php foreach ($images as $image) { ?> < table border="1" cellspacing="0" cellpadding="5">   <tr><td width="10%">Name</td><td><?= $image->getName() ?>&nbsp;</td></tr>         <tr><td colspan="2"><img src="imageContent?name=<?= $image->getName() ?>" height="100"></td></tr>         <tr><td>Description (<?= $image->getDescriptionLength() ?>)</td><td><?= $image->getShortDescription() ?>&nbsp;</td></tr> < /table> < p> <?php } ?>

<p> < table border="1" cellspacing="0" cellpadding="5"> < form action="imageUpload" method="post" encType="multipart/form-data">   <tr><td width="10%">Name</td><td><input type="text" name="name"><br></td></tr>   <tr><td>Content</td><td><input type="file" name="image"><br></td></tr>   <tr><td>Description</td><td><textarea name="description" cols="80" rows="5"></textarea></td></tr>   <tr><td colspan="2"><input type="submit" value="Upload image"></td></tr> < /form> < /table>

<p><a href="clearDatabase">Clear database</a>

</body> < /html>

 

JSP:

<%@ page session="false" %>
 <%@ page ="java.util.List,
" %>

<!– imageList.jsp –>

<html>
 <body>

<%= (List) request.getAttribute("images" (Iterator it ==%>
 <table border="1" cellspacing="0" cellpadding="5">
   <tr><td width="10%">Name</td><td><%= image.getName() %>&nbsp;</td></tr>
         <tr><td colspan="2"><img src="imageContent?name=<%= image.getName() %>" height="100"></td></tr>
         <tr><td>Description (<%= image.getDescriptionLength() %>)</td><td><%= image.getShortDescription() %>&nbsp;</td></tr>
 </table>
 <p>
 <%%>

<p>
 <table border="1" cellspacing="0" cellpadding="5">
 <form action="imageUpload" method="post" encType="multipart/form-data">
   <tr><td width="10%">Name</td><td><input type="text" name="name"><br></td></tr>
   <tr><td>Content</td><td><input type="file" name="image"><br></td></tr>
   <tr><td>Description</td><td><textarea name="description" cols="80" rows="5"></textarea></td></tr>
   <tr><td colspan="2"><input type="submit" value="Upload image"></td></tr>
 </form>
 </table>

<p><a href="clearDatabase">Clear database</a>

</body>
 </html>

 

<html>
 <body>

<? (  ?>
 <table border="1" cellspacing="0" cellpadding="5">
   <tr><td width="10%">Name</td><td><?= ->getName() ?>&nbsp;</td></tr>
         <tr><td colspan="2"><img src="imageContent?name=<?= ->getName() ?>" height="100"></td></tr>
         <tr><td>Description (<?= ->getDescriptionLength() ?>)</td><td><?= ->getShortDescription() ?>&nbsp;</td></tr>
 </table>
 <p>
<??>

<p>
 <table border="1" cellspacing="0" cellpadding="5">
 <form action="imageUpload" method="post" encType="multipart/form-data">
   <tr><td width="10%">Name</td><td><input type="text" name="name"><br></td></tr>
   <tr><td>Content</td><td><input type="file" name="image"><br></td></tr>
   <tr><td>Description</td><td><textarea name="description" cols="80" rows="5"></textarea></td></tr>
   <tr><td colspan="2"><input type="submit" value="Upload image"></td></tr>
 </form>
 </table>

<p><a href="clearDatabase">Clear database</a>

</body>
 </html>

 

 

What I think is interesting between these two is that the PHP, even though it’s calling Java objects, has a simpler syntax.  It’s not a major issue, but you can see that PHP is as reasonable as any other view for Java.

Now how do you configure it?  Just add the QuercusView class to a UrlBasedViewResolver and give a php suffix and you’re done:

 
 

        
         

        
         

        
         

        
                 
                 
                 
         
 

 

If you’re interested in the implementation… The view was pretty easy to connect up once I learned Spring’s view API.  It’s essentially a Servlet.service() call with a map of model values.  So the QuercusView class above is just a modified QuercusServlet that injects the model values as PHP globals.  I’m not sure that that’s right just yet, but it’s a start.  The other option would be to put the values as PHP superglobals or in a specialized Spring array.

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