I am updating my data but it not updating why it happen
i want if any register user want to change data old to new then i give a update page where the user change there data but except username i try lot byt it's not updata data to server databasetable my cod is proper or wrong
-(void)sendRequest
{
NSString *post = [NSString stringWithFormat:#"firstname=%#&lastname=%#&Username=%#&Password=%#&Email=%#",txtfirstName.text,txtlast.text,txtUserName.text,txtPassword.text,txtEmail.text];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSLog(#"%#",postLength);
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:#"http://192.168.0.1:96/JourneyMapperAPI?RequestType=Register&Command=SET"]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
if (theConnection) {
webData = [[NSMutableData data] retain];
NSLog(#"%#",webData);
}
else
{
}
}
-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
[webData setLength: 0];
}
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[webData appendData:data];
}
-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
[connection release];
[webData release];
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSString *loginStatus = [[NSString alloc] initWithBytes: [webData mutableBytes] length:[webData length] encoding:NSUTF8StringEncoding];
NSLog(#"%#",loginStatus);
}
you need to start the connection:
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
if (theConnection) {
webData = [[NSMutableData data] retain];
NSLog(#"%#",webData);
[theConnection start];
}
else
{
}
Related
i know there are a lot of questions about this but none seems to work for what I want to do. I want to change the value of a tag so let's say i have this file :
</Courbe>
<tempset>140</tempset>
</Courbe>
I want my http post request to change this value. How do I do this?
I have already tried something like that :
- (IBAction)changeTemp:(id)sender
{
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:#"http://207.134.145.16:50001/Courbe.xml"]];
[request setHTTPMethod:#"POST"];
[request setValue:#"text/xml" forHTTPHeaderField:#"Content-type"];
NSString *xmlString = #"<tempset>137</tempset>";
[[NSURLConnection alloc] initWithRequest:request delegate:self];
}
Is it something like this? Thanks for your help!
Url encode the xmlString, then:
NSData *postData = [xmlString dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
[request setHTTPBody:postData];
[request setValue:[NSString stringWithFormat:#"%d", [postData length]] forHTTPHeaderField:#"Content-Length"];
[request setValue:#"text/xml" forHTTPHeaderField:#"Content-Type"];
To send, use something like this:
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {}];
Prior to iOS5, you can send asynchronously this way:
// make the request and an NSURLConnection with a delegate
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:url]];
[[[NSURLConnection alloc] initWithRequest:request delegate:self] autorelease];
// create a property to hold the response data, then implement the delegate methods
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
responseData = [[NSMutableData alloc] init];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
[responseData appendData:data];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
[responseData release];
[textView setString:#"Unable to fetch data"];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
NSString *responseString = [[[NSString alloc] initWithData:responseData encoding: NSASCIIStringEncoding] autorelease];
}
How can I improve this code?
This question is related to What is the last function in iPhone application lifecycle
-(void)LogoutUser
{
int userId = [[GlobalData sharedMySingleton] getUserId];
NSString *soapMsg =
[NSString stringWithFormat:
#"<?xml version=\"1.0\" encoding=\"utf-8\"?>...", userId
];
NSURL *url = [NSURL URLWithString: #"http://....asmx"];
NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url];
NSString *msgLength = [NSString stringWithFormat:#"%d", [soapMsg length]];
[req addValue:#"text/xml; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
[req addValue:#"http://..." forHTTPHeaderField:#"SOAPAction"];
[req addValue:msgLength forHTTPHeaderField:#"Content-Length"];
[req setHTTPMethod:#"POST"];
[req setHTTPBody: [soapMsg dataUsingEncoding:NSUTF8StringEncoding]];
conn = [[NSURLConnection alloc] initWithRequest:req delegate:self];
if (conn)
{
webData = [[NSMutableData data] retain];
}
}
-(void) connection:(NSURLConnection *) connection didReceiveResponse:(NSURLResponse *) response
{
[webData setLength: 0];
}
-(void) connection:(NSURLConnection *) connection didReceiveData:(NSData *) data
{
[webData appendData:data];
}
-(void) connection:(NSURLConnection *) connection didFailWithError:(NSError *) error
{
[webData release];
[connection release];
}
-(void) connectionDidFinishLoading:(NSURLConnection *) connection
{
NSString *theXML = [[NSString alloc]
initWithBytes: [webData mutableBytes]
length:[webData length]
encoding:NSUTF8StringEncoding];
[theXML release];
[connection release];
[webData release];
}
The problem is that when your application switches to the background state, it no longer receives any network updates. If you require the network call to return before the application enters the background, maybe a synchronous call will help you there.
If you decide to go this route, I also suggest to look at ASIHTTPRequest because those classes will allow you to set a timeout on the synchronous call while the normal NSURLConnection classes won't. Otherwise you risk that your application will be terminated by the iOS if the server does not respond.
I am trying to upload video file to the specified URL. When I press button video file should upload into the URL which I used. But no response is coming.
NSString *filePath = [[NSBundle mainBundle]pathForResource:#"3idiots" ofType:#"mov"];
NSURL *uploadurl=[NSURL URLWithString:#"http://115.111.27.206:8081/vblo/upload.jsp"];
//NSData *postVideoData = [NSData dataWithContentsOfFile:filePath];
NSData *postVideoData = [string dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postVideoLength = [NSString stringWithFormat:#"%d", [postVideoData length]];
NSMutableURLRequest *request12 = [[[NSMutableURLRequest alloc] init] autorelease];
[request12 setURL:uploadurl];
[request12 setHTTPMethod:#"POST"];
[request12 setValue:postVideoLength forHTTPHeaderField:#"Content-Length"];
[request12 setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request12 setHTTPBody:postVideoData];
NSURLConnection *theConnection12 = [[NSURLConnection alloc] initWithRequest:request12 delegate:self];
if( theConnection12 )
{
webData12 = [[NSMutableData data] retain];
}
else
{
}
}
-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
[webData12 setLength:0];
}
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[webData12 appendData:data];
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSString *loginStatus12 = [[NSString alloc] initWithBytes: [webData12 mutableBytes] length:[webData12 length] encoding:NSUTF8StringEncoding];
NSLog(loginStatus12);
if(loginStatus12)
{
UIAlertView *statusAlert12 = [[UIAlertView alloc]initWithTitle:nil message:(NSString *)loginStatus12 delegate:self cancelButtonTitle:#"cancel" otherButtonTitles:nil];
[statusAlert12 show];
}
}
you need to send the request, add this line after you set the HTTPBody
NSData *serverReply = [NSURLConnection sendSynchronousRequest: request12 returningResponse:&response error:&error];
I try to build an app for user that enter his data and this data will be post to a webserver for save in a Database. This web server returns some data back like Id or something else.
How I can receive the data the webserver returns back?
The transfer works already with NSMutableURLRequest. But I search for a sollution to read the answer from the web server and display it on a label.
Have a look at the delegate methods of NSURLConnection.
Example of how it could be done. Original source
NSString *post = #"key1=val1&key2=val2";
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:#"http://www.someurl.com"]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSURLConnection *conn=[[NSURLConnection alloc] initWithRequest:request delegate:self];
if (conn)
{
receivedData = [[NSMutableData data] retain];
}
else
{
// inform the user that the download could not be made
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
[receivedData setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[receivedData appendData:data];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
// do something with the data
// receivedData is declared as a method instance elsewhere
NSLog(#"Succeeded! Received %d bytes of data",[receivedData length]);
NSString *aStr = [[NSString alloc] initWithData:receivedData encoding:NSASCIIStringEncoding];
NSLog(aStr);
// release the connection, and the data object
[receivedData release];
}
How to make Http Post Request using JSON. I tried every option which is available on Internet.But could not get the Data. So please post entire code to make a request.
You can use below code:
-(void)performRequest{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:#"url"]];
NSString *msgLength = [NSString stringWithFormat:#"%d", [jsonMessage length]];
[request addValue: #"text/xml; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
[request addValue: jsonAction forHTTPHeaderField:#"JSONAction"];
[request addValue: msgLength forHTTPHeaderField:#"Content-Length"];
[request setHTTPMethod:#"POST"];
[request setHTTPBody: [jsonMessage dataUsingEncoding:NSUTF8StringEncoding]];
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
if( theConnection )
{
webData = [[NSMutableData data] retain];
}
else
{
NSLog(#"theConnection is NULL");
}
[pool release];
}
-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response{
[webData setLength: 0];
self.resultArray = [[NSMutableArray alloc] init];
}
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data{
[webData appendData:data];
}
-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error{
NSLog(#"ERROR with theConenction");
NSDictionary *errorDic = [NSDictionary dictionaryWithObject:error forKey:#"error"];
[self.resultArray addObject:errorDic];
[connection release];
[webData setLength:0];
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection{
NSLog(#"DONE. Received Bytes: %d", [webData length]);
NSString *theXML = [[NSString alloc] initWithBytes: [webData mutableBytes] length:[webData length] encoding:NSUTF8StringEncoding];
NSLog(#"%#", theXML);
[theXML release];
if([webData length] > 0){
parser = [[NSXMLParser alloc] initWithData:webData];
[parser setDelegate:self];
[parser parse];
}
}
Here's a basic example of NSURLConnection POST-ing JSON to an URL.
- (void)performRequest {
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:#"http://someplace.com/"]];
[request setValue:#"Some Value" forHTTPHeaderField:#"Some-Header"];
[request setHTTPBody:#"{\"add_json\":\"here\"}"];
[request setHTTPMethod:#"POST"];
[NSURLConnection connectionWithRequest:[request autorelease] delegate:self];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
// Fail..
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
// Request performed.
}