I get the answer by debug restlet.
The problem is caused by "CharSequence".
In Java,CharSequence default uses "unicode".
In my code:
request.getEntityAsForm().getValues(JSON_PARAM);
This statement will call construct Form Object by posted request
data,and parse parameters from it.
In FormUtils class,there is a parameter parse method:
public static Parameter create(CharSequence name, CharSequence value,
CharacterSet characterSet) throws IOException {
Parameter result = null;
if (name != null) {
if (value != null) {
//notice:result is encoded by unicode.So when we do
next step,we get wrong converted result.
result = new Parameter(Reference.decode(name.toString(),
characterSet), Reference.decode(value.toString(),
characterSet));
} else {
result = new Parameter(Reference.decode(name.toString(),
characterSet), null);
}
}
return result;
}
So I add a pre-convert code:
...
if (name != null) {
if (value != null) {
//added statement:it will convert unicode to
corresponding characterset(here is utf-8).
value=new
String(value.toString().getBytes(CharacterSet.ISO_8859_1.getName()),characterSet.getName());
result = new Parameter(Reference.decode(name.toString(),
characterSet), Reference.decode(value.toString(),
characterSet));
} else {
result = new Parameter(Reference.decode(name.toString(),
characterSet), null);
}
}
...
Ok,I found opensource is the best way for debug!
Any suggestiong for me?
On Jan 23, 2008 2:33 PM, cleverpig <[EMAIL PROTECTED]> wrote:
>
> I meet a problem on request paramter decode in Chinese enviroment:
> I posted data with UTF-8 code,the data includes some Chinese Characters.
> And then I revieved them from Restlet,the data was changed by wrong
> characterset(maybe it is ISO-8859-1,but UTF-8 is correct):
>
> //This class processes request and give response in JSON way.
> public class AddressbookBean extends Restlet{
> private static final String ACTION_PARAM="action";
> private static final String JSON_PARAM="json";
> private AddressbookService service;
> private Log log=LogFactory.getLog(AddressbookBean.class);
>
> @Override
> public void handle(Request request, Response response) {
>
> // request.getEntity().setCharacterSet(CharacterSet.UTF_8);
> //This
> statement don't work for Form,only works for Entity Object
> String
> actionParamVal=(String)request.getAttributes().get(ACTION_PARAM);
> log.info(ACTION_PARAM+"="+actionParamVal);
>
> String
> jsonParamVal=request.getEntityAsForm().getValues(JSON_PARAM);
> log.info(JSON_PARAM+"="+jsonParamVal);
> //if I post json param:json={"city":"北京","street":"1","zip":"1","tel":"1"}
> //I will get a wrong json
> param:json={"city":"北京","street":"1","zip":"1","tel":"1"}
>
> String dbFileDir=null;
> dbFileDir="/";
> log.info("DBFileDir="+dbFileDir);
>
> String responseText=Utils.callMethodAndGainResponseJSONStr(
> service,
> actionParamVal,
> jsonParamVal,
> dbFileDir,
> Addressbook.class);
> Representation responseRep = new StringRepresentation(
> responseText,
> MediaType.APPLICATION_JSON,
> Language.ALL,
> CharacterSet.UTF_8);
> response.setEntity(responseRep);
> }
>
> public void setService(AddressbookService service ){
> this.service = service;
> }
> }
>
> So I checked source code and track to find reason,but i couldn't find
> a function to post customized characterset with Form Object.
>
> What's wrong with my code?After I added these hard-decode,I got correct
> result:
> String jsonParamVal=request.getEntityAsForm().getValues(JSON_PARAM);
> try {
> if (jsonParamVal!=null)
> jsonParamVal=new
> String(jsonParamVal.getBytes("iso8859-1"),"utf-8");
> } catch (UnsupportedEncodingException e) {
> // TODO Auto-generated catch block
> e.printStackTrace();
> }
> log.info(JSON_PARAM+"="+jsonParamVal);
>
> I found my post body was encode by iso8859-1,but it wasn't my responsibility.I
> don't what is done in restlet.
>
>
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