I am trying to fetch response from SOAP request.Response is an xml data.When i try to convert data into String it shows <,> symbols as '>' and '<' with ';' at end.Then the xml parser is not able to parse it
Check out this NSString category for HTML.
It adds several functions to NSString which you may find useful, like:
- (NSString *)stringByDecodingHTMLEntities;
You can run this function on your string and decode the HTML entities before giving the string to the XML parser.
Related
I have a XML parser. I'm getting the XML file from server and write that XML file in to a local file in cache. Before do that, I want to check the URL has the XML file. How Can I check the available URL's page is a XML page or another type of page(Ex:HTML,PHP)?? Simply how can I identify a XML file ??
Ultimately, you have to look at the contents of the data retrieved to make sure it's valid XML, and parsing is the easiest way to do that.
If you're retrieving the data via a HTTP request, you can, though, also look at the response you receive before you start receiving the actual data. For example, if using NSURLConnection, you can implement a didReceiveResponse, which should often return a 200 for status code and text/xml for content type:
- (void) connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
if ([response isKindOfClass:[NSHTTPURLResponse class]])
{
NSHTTPURLResponse *httpResponse = (id)response;
NSInteger statusCode = httpResponse.statusCode;
NSString *contentType = httpResponse.allHeaderFields[#"Content-Type"];
NSLog(#"%d; %#", statusCode, contentType);
// check to see if statusCode == 200 and/or [contentType isEqualToString:#"text/xml"] here;
}
}
As an aside, the status code and the content type are set by the server, so it is, admittedly, dependent upon the server's implementation (e.g. if the XML is being generated programmatically by the server, hopefully it's setting these HTTP response fields correctly, but if you're retrieving XML from third party servers, you can't be guaranteed that they're well-behaved). But a status code of 200 and content type of "text/xml" are customary and most servers will set these values appropriately if you're just retrieving a XML file.
The most reliable technique for validating your XML is to just receive the data from the server, and submit it to a parser, and see if the parser returns an error or not.
There are various solution available for this:
http://knol2share.blogspot.in/2009/05/validate-xml-against-xsd-in-c.html
http://wiki.njh.eu/XML-Schema_validation_with_libxml2
Checking for proper xml before parsing in NSXMLParser
Hope this will help you.
I have read around and this error seems to be from bad JSON. Easy enough, here is my JSON
{"year":"2012","wheels":"Standard","trans":"Unknown"}
My issue is, this appears to be correct, and when I run it through JSON lint it returns vaild. I have also used cURL to download this page and used json_decode() to read it...worked fine.
Here is an example page: http://drivingthenation.com/app/carlist/getVinDtn.php?v=JA3215H1C**M&f=v
I ran it through HTTPScoop and the only thing the response text returned was
{"year":"2012","wheels":"Standard","trans":"Unknown"}
On the objective-c end I am using NSURL and NSData to get the URL, and then NSJSONSerialization. I can print out before NSJSONSerialization and see that it is infact getting data, but this error only occurs when I try to format it into JSON. Any thoughts?
The NSJSONSerialization class, by default, expects the input to be not just valid JSON, but a valid JSON object. If you want to read something that's not an object, you need to specify the NSJSONReadingAllowFragments option to the reader.
We are trying to convert the JSON object from NSSTRING TO NSDICTIONARY but we are not getting any value. Here is the url for our webservice http://ecreeds.info/theappsoluteguideto/appservice.asmx/appArea
any help would be appreciated.
Use JSONLint.com it appears your webservice returns a 500 error for the response hence why you are not seing anything, because of invalid json
Your JSON isn't valid. In fact, it's quite off.
I have some string values that are retrieved from json data. I need a process of converting this strings to xml format and Post it to a url
If it's inside iPhone SDK you will have to parse the string to convert it to XML, unless you can just post the xml as-is.
Anyway. To parse the XML, you have basically two easy options:
NSXMLParser
libxml2 (my preferred choice, don't know why)
Then you can use NSURLConnection class to post the information to the desired XML. There are a lot of Stackoverflow questions already covering this issue you can search and use.
You can also look at an example here.
I am working with the iPhone SDK and I have to process a webservice response I receive from an external service.
The response data consists of an XML string that was UTF8-encoded to a byte array.
This byte array is converted to string
This string is put into a XML wrapper element
The wrapper is returned via an HTTP response
Therefore I need to know how to convert the response data back to the XML string it used to be. Unfortunately, I cannot change the way my response is created, so I have to deal with it somehow.
Example of the raw data I get from the webservice:
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
<s:Body><ExportBytesResponse xmlns="http://knowledgepark-ag.com/webservices/">
<ExportBytesResult>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</ExportBytesResult>
</ExportBytesResponse></s:Body>
How do I get back my old xml string representation hidden inside these raw bytes?
Any help is highly appreciated, I feel just stupid right now for not being able to come up with a solution.
Best Regards,
David
ExportBytesResponse is Base64 encoded, so you must first decode that node using something like this.
That will give you an NSString containing the XML. Then you can use NSXMLParser to parse your data.