Getting an error with plugins.serialize.fromJSON()

Classic Servoy
1

I’m having the following exception raised every time i try to de-serialize some JSON data, it reads like I’m missing some file… ?

org.jabsorb.serializer.UnmarshallException: Class specified in javaClass hint not found: (unknown) (gQueryTradeTool, line 22)

2

Have not really looked into this but doing a search on the web gave me this hit: http://groups.google.com/group/jabsorb- … a79e6bfd75

3

Humm… I have patched the JSONSerializer.java as mentioned in the post and recompiled the .jar file however I don’t get any extra information to the problem :frowning:

HOWEVER…

Doing
var pageData = plugins.http.getPageData(urlString,‘mybrowser’);
var myObject = eval(‘(’ + pageData + ‘)’);

Works just fine for de-serializing the JSON string into an Object, so I think I’m all set with this. Although it begs the question…why do we need the plugin if eval() and uneval() work just fine for (de)serialization?

4

Would help if you show us the JSON data you try to deserialize. It complains about a certain class, so which class can it not convert?

Paul

5

Ryan,

can you post the actual string value that could not be deserialized?

Rob

6

{‘restriction’: ‘No Encryption’, ‘part_number’: ‘CAB-AC’, ‘hts’: ‘8544.42.9000’, ‘description’: ‘Power Cord,110V’, ‘eccn’: ‘5A991’}

7

Ryan,

The plugin tries to create a java object for all non-primitives.
It tries to find a javaClass attribute which is not found.

The eval-should work fine.
Note that the eval has a security issue, it can execute any javascript code, so only use data from a trusted source, see http://en.wikipedia.org/wiki/JSON

Rob