Ramiel,
I think you came pretty close. Two things require minor corrections
(1) Content-Type
HTTP POST per default uses so called URL encoding when submitting HTML
forms. Setting the content type to 'text/plain' may cause some web
servers to misinterpret the request parameters
Try this instead
postmethod.setRequestHeader(
"Content-Type", "application/x-www-form-urlencoded; charset=utf-8");
(2) Request parameters
This operation is completely redundant
new String(((String)
paramList.get(paramName)).getBytes("UTF-8"),"UTF-8")
As far as I understand it produces exactly the same Unicode string
// Assign parameters into post method
Iterator it = paramList.keySet().iterator();
while (it.hasNext()) {
String paramName = (String) it.next();
postmethod.addParameter(paramName, paramList.get(paramName));
}
HttpClient will do all the charset conversion for you. Just make sure the charser
attribute of the Content-Type is set
For details please refer to the HttpClient encoding guide
http://jakarta.apache.org/commons/httpclient/charencodings.html
Hope this helps
Oleg
On Wed, 2004-10-13 at 13:22, Ramiel Fong wrote:
> Hi~!
>
> Thanks in advance for those who will be looking into my problem.
>
> I am having difficulty in sending chinese characters via postmethod.
>
> // Create an instance of HttpClient
> HttpClient httpclient = new HttpClient();
>
> // Create a method instance
> PostMethod postmethod = new PostMethod(url);
>
> // Assign parameters into post method
> Iterator it = paramList.keySet().iterator();
> while (it.hasNext()) {
> String paramName = (String) it.next();
> postmethod.addParameter(paramName,
> new String(((String) paramList.get(paramName)).getBytes("UTF-8"),"UTF-8"));
> }
>
> With the above codes I succeeded in sending out the postmethod with the list of
> parameters. But all chinese characters become "?" upon received by back-end.
>
> Therefor I add this:
>
> // Set request header - character set
> postmethod.setRequestHeader("Content-Type", "text/plain; charset=utf-8");
>
> With the above lines added, the back-end server could receive the postmethod request
> but can only find an empty parameter list.
>
> The back-end server is indeed a servlet resided on websphere 5 server. The codes to
> get the one of the parameter is:
>
> request.setCharacterEncoding("UTF-8");
> String inXMLMessage = (String) request.getParameter("xmlmessage");
>
> Since the parameter list become empty the above method failed. Therefore I switched
> to another method - to get the entire request body with input stream and added the
> following codes:
>
> if (inXMLMessage == null)
> inXMLMessage = getXMLMessageFromInputStream (request.getInputStream());
>
> ......
>
> public String getXMLMessageFromInputStream (InputStream requestIS) {
> String XMLMessage = "";
> try {
> InputStreamReader isr = new InputStreamReader(requestIS, "UTF-8");
> BufferedReader r = new BufferedReader(isr);
> XMLMessage = r.readLine();
> XMLMessage = URLDecoder.decode(XMLMessage);
> XMLMessage = XMLMessage.substring(11);
> } catch (Exception ex) {...}
> return XMLMessage;
> }
>
> With the above I succeeded to get the parameter I want, i.e. an xml message, from
> the input stream, but the entire message are "escaped", that is space and tab become
> "+", "<" become "%3C", etc. Thaz why I need to use URLDecoder . But the worst part
> is that all chinese charaters become weird codes like
> 測試, which should be "æè" in traditional
> chinese.
>
> I am really at my wits end as to what is happening here. Would somebody throw a
> light upon my proble? A thousand thanks in advance!
>
> Regards
> Ramiel Fong
>
>
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