When i call request like:
<serverUrl>/objects.svc/objects(<some-cyrillic-str>)
i have error like: "The URI is malformed".
And when i add single quotes, so it becomes like:
<serverUrl>/objects.svc/objects('<some-cyrillic-str>')
i have error like: "The key property 'Id' is invalid".
I think that problem is: URL encoding.
In servlet cyrillic part of request URL becomes like: %D7%....etc) and Olingo can't use it.
Q: what is the proper way to use cyrillic in such situations?
UPD:
Cyr. part of URL working by js (encodeURLComponent()) and sending. Servlet (and then Olingo) get this part like %D7%... When i try to decode url in filter (before servlet), i have proper cyr. part in filter, but servlet can't to be called by such url anymore.
It was solved by myself. It was silly mistake in Olingo server.
UPD:
Mistake was: key property 'Id' was INT type (not STRING). After correction Olingo worked cyrillic string in right way.
Thanx all.
Related
I am working on a Spring Boot application
I need to make a request to an external service, old and ill-conceived. The request take the form of a HTTP GET (or POST) call, but the payload, an xml content, need to be passed as a query parameter. For example,
GET http://ill-service.com/plain.cgi?XML_DATA=<request attribute="attributeValue"><content contentAttribute="plain"/></request>
Of course, the value of query param XML_DATA need to be URL encoded, and normally, the RestTemplate of Spring boot work good on that, following RFC 3986 (see http://www.ietf.org/rfc/rfc3986.txt).
Except that, as allowed by this RFC, '/' and '=' character are left in the param value, giving me the following query :
GET http://ill-service.com/plain.cgi?XML_DATA=%3Crequest%20attribute=%22attributeValue%22%3E%3Ccontent%20contentAttribute=%22plain%22/%3E%3C/request%3E
In a perfect wold, this would be good, but do you remember when I said that the service I am trying to call is ill-conceived ? In another world, it needs to have the full content of XML_DATA URL-encoded. In another words, it needs the following query:
GET http://ill-service.com/plain.cgi?XML_DATA=%3Crequest%20attribute%3D%22attributeValue%22%3E%3Ccontent%20contentAttribute%3D%22plain%22%2F%3E%3C%2Frequest%3E%0A
I am quite lost on how to instruct the rest template or the UriComponentBuilder I am using to do so. Any help would be greatly appreciated
Probably u can use spring's UriUtils class
Use java.net.URLEncoder to encode your XML payload first and then append the encoded payload.
Following the suggestion of Vasif, and some information about UriComponentBuilder I found the following solutions :
String xmlContent = "<request attribute="attributeValue"><content contentAttribute="plain"/></request>";
URI uri = UriComponentsBuilder.fromHttpUrl("http://ill-service.com/plain.cgi")
//This part set the query param as a full encoded value, not as query value encoded
.queryParam("XML_DATA", UriUtils.encode(xmlContent, "UTF-8"))
//The build(true) indicate to the builder that the Uri is already encoded
.build(true).toUri();
String responseStr = restTemplate.getForObject(uri ,String.class)
I have used this code to decode a URI string:
java.net.URLDecoder.decode(request.getParameter("comment"), "UTF-8"). and it works. e.g.
Input: cl%C4%81mor
Output: clāmor
But when I use #MultipartConfig in my java servlet file, this happens:
Input: cl%C4%81mor
Output: cl%C4%81mor
I am not sure why this didn't work. Can you tell me why this happened and/or how to fix it? Thanks in advance.
Could it be that #MultipartConfig changes the default request encoding in your setup? Can you check what request.getCharacterEncoding() returns UTF-8? Is the value returned from request.getParameter("comment") different after you add #MultipartConfig.
It would be easier to answer if you would provide more information about your setup. If you are using Spring with JEE annotations maybe you want to look at this answer.
In my Android application I get JSON response string from a PHP url. from the response I get some hotel names with apostrophe, I get ' character instead of apostrophe. How can I parse the hotel with special characters in android? I can see the apostrophe in the browser but could not see in android logcat.
I have tried jresponse = URLEncoder.encode(jresponse,"UTF-8"); but I could not get apostrophe for hotel name.
This is the one of the hotel name in the response.
I see the following in browser.
{"id":12747,
"name":"Oscar's",
....
}
But in the logcat:
id 12747
name Oscar's
Use the decoder instead of encoder. URLDecoder.decode(jresponse,"UTF-8")
Use ISO-8859-2 when you create the URLEncodedEntity that you send off. You can set this as a parameter in the constructor.
Without a specified charset, you are probably sending the data in UTF-8/UTF-16 (most common) which the server is interpreting in a different way.
EDIT: It looks like ISO-8859-2 doesn't support ñ. You may have to change something server-side. http://en.wikipedia.org/wiki/ISO/IEC_8859-2
You can try Html class. eg :-
jresponse = Html.fromHtml(jresponse);
How to read access token from this url? When I try to read this by request.getParameter() method it returns null value
http://localhost:8080/FirstPick/views/common/home.faces#access_token=xxxxxxxxxx&expires_in=4015
Besides this,
Content after the hash (#) is only be used on the client side. If you require that information on the server, you can use a different separator with query-string using '?', or you can submit it via Ajax after the page has loaded by reading it on the client with JavaScript.
The part of the URI after the hash(#) is never sent to the server, reason is that the hash identifier was originally designed to point at references within the given web page and not to new resources on the server.
Thanks
You cant read any parameter from querystring like this..
It must contain '?'.
Only the string that appears after '?' is called 'QueryString'.
and from 'QueryString' you can get the value.
And you menstion the url here, is not contain '?' so it doesnt have 'QueryString'.
and You cant use request.getParameter() method.
On client side (i.e. from JavaScript) you can check window.location.hash to get hash. On server side, general answer is 'it is impossible' since hash is not sent in request to server.
I have a servlet which receive some parameter from the client ,then do some job.
And the parameter from the client is Chinese,so I often got some invalid characters in the servet.
For exmaple:
If I enter
http://localhost:8080/Servlet?q=中文&type=test
Then in the servlet,the parameter of 'type' is correct(test),however the parameter of 'q' is not correctly encoding,they become invalid characters that can not parsed.
However if I enter the adderss bar again,the url will changed to :
http://localhost:8080/Servlet?q=%D6%D0%CE%C4&type=test
Now my servlet will get the right parameter of 'q'.
What is the problem?
UPDATE
BTW,it words well when I send the form with post.
WHen I send them in the ajax,for example:
url="http://..q='中文',
xmlhttp.open("POST",url,true);
Then the server side also get the invalid characters.
It seems that just when the Chinese character are encoded like %xx,the server side can get the right result.
That's to say http://.../q=中文 does not work,
http://.../q=%D6%D0%CE%C4 work.
But why "http://www.google.com.hk/search?hl=zh-CN&newwindow=1&safe=strict&q=%E4%B8%AD%E6%96%87&btnG=Google+%E6%90%9C%E7%B4%A2&aq=f&aqi=&aql=&oq=&gs_rfai=" work？
Ensure that the encoding of the page with the form itself is also UTF-8 and ensure that the browser is instructed to read the page as UTF-8. Assuming that it's JSP, just put this in very top of the page to achieve that:
<%# page pageEncoding="UTF-8" %>
Then, to process GET query string as UTF-8, ensure that the servletcontainer in question is configured to do so. It's unclear which one you're using, so here's a Tomcat example: set the URIEncoding attribute of the <Connector> element in /conf/server.xml to UTF-8.
<Connector URIEncoding="UTF-8">
For the case that you'd like to use POST, then you need to ensure that the HttpServletRequest is instructed to parse the POST request body using UTF-8.
request.setCharacterEncoding("UTF-8");
Call this before you access the first parameter. A Filter is the best place for this.
See also:
Unicode - How to get the characters right?
Using non-ASCII characters as GET parameters (i.e. in URLs) is generally problematic. RFC 3986 recommends using UTF-8 and then percent encoding, but that's AFAIK not an official standard. And what you are using in the case where it works isn't UTF-8!
It would probably be safest to switch to POST requests.
I believe that the problem is on sending side. As I understood from your description if you are writing the URL in browser you get "correctly" encoded request. This job is done by browser: it knows to convert unicode characters to sequence of codes like %xx.
So, try to check how do you send the request. It should be encoded on sending.
Other possibility is to use POST method instead of GET.
Do read this article on URL encoding format "www.blooberry.com/indexdot/html/topics/urlencoding.htm".
If you want, you could convert characters to hex or Base64 and put them in the parameters of the URL.
I think it's better to put them in the body (Post) then the URL (Get).