Java Web Script first steps

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nm_santos

Hi everyone,

I've managed to complete the tutorial regarding java-based web scripts.

Now, I tried modifying the Javadir class so I could try out some things.

Here's how it looks now:

public class JavaDir extends DeclarativeWebScript
{
   
   protected Map<String, Object> executeImpl(WebScriptRequest req, Status status, Cache cache)
   {
      String user = null;
      
      user = req.getParameter("username");
      
            
      Map<String, Object> model = new HashMap<String, Object>();
      model.put("username", user);
      
      return model;
      
   }
}‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Here are my descriptors and template files:

<webscript>
  <shortname>Folder Listing Utility</shortname>
  <description>Java-backed implementation of listing folder contents
  </description>
  <url>/javadir/username={username}</url>
  <authentication>user</authentication>
</webscript>‍‍‍‍‍‍‍‍

<html>
 <head>
  <title>Folder java funciona</title>
  </head>
      ${username} funciona
 </body>
</html>‍‍‍‍‍‍‍‍

All I want now, is to display the username received. (the URI is ttp://localhost:8080/alfresco/service/javadir/{username}


however, when I run the script, I get the following error:

500 Description:    An error inside the HTTP server which prevented it from fulfilling the request.
 
Message:   05060023 Wrapped Exception (with status template): 05060003 Error during processing of the template 'Expression username is undefined on line 5, column 19 in org/example/javadir.get.html.ftl.'. Please contact your system administrator.
 
Exception:   freemarker.core.InvalidReferenceException - Expression username is undefined on line 5, column 19 in org/example/javadir.get.html.ftl.

‍‍‍‍‍‍‍‍‍‍‍

Which is in regards to ${username}.

What am I doing wrong?

Regards,
Nuno.

abarisone

Hi,
in your descriptor it's better to write

<webscript>
  <shortname>Folder Listing Utility</shortname>
  <description>Java-backed implementation of listing folder contents
  </description>
  <url>/javadir/username</url>
  <authentication>user</authentication>
</webscript>‍‍‍‍‍‍‍

and try to call the webscript with
http://localhost:8080/alfresco/service/javadir/username?username=Nuno
You also missed the <body> opening tag.

Regards