ASIHTTPRequest 详解, http 请求终结者

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1. - (IBAction)grabURL:(id)sender
2. {
3. NSURL *url = [NSURL URLWithString:@"http://allseeing-i.com"];
4. ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
5. [request startSynchronous];
6. NSError *error = [request error];
7. if (!error) {
8. NSString *response = [request responseString];
9. }
10. }

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1. - (IBAction)grabURLInBackground:(id)sender
2. {
3. NSURL *url = [NSURL URLWithString:@"http://allseeing-i.com"];
4. ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
5. [request setDelegate:self];
6. [request startAsynchronous];
7. }
8. - (void)requestFinished:(ASIHTTPRequest *)request
9. {
10. // Use when fetching text data
11. NSString *responseString = [request responseString];
12. // Use when fetching binary data
13. NSData *responseData = [request responseData];
14. }
15. - (void)requestFailed:(ASIHTTPRequest *)request
16. {
17. NSError *error = [request error];
18. }

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1. - (IBAction)grabURLInTheBackground:(id)sender
2. {
3. if (![self queue]) {
4. [self setQueue:[[[NSOperationQueue alloc] init] autorelease]];
5. }
6. NSURL *url = [NSURL URLWithString:@"http://allseeing-i.com"];
7. ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
8. [request setDelegate:self];
9. [request setDidFinishSelector:@selector(requestDone:)];
10. [request setDidFailSelector:@selector(requestWentWrong:)];
11. [[self queue] addOperation:request]; //queue is an NSOperationQueue
12. }
13. - (void)requestDone:(ASIHTTPRequest *)request
14. {
15. NSString *response = [request responseString];
16. }
17. - (void)requestWentWrong:(ASIHTTPRequest *)request
18. {
19. NSError *error = [request error];
20. }

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1. - (void)dealloc
2. {
3. [request clearDelegatesAndCancel];
4. [request release];
5. ...
6. [super dealloc];
7. }

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1. ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
2. [request setPostValue:@"Ben" forKey:@"first_name"];
3. [request setPostValue:@"Copsey" forKey:@"last_name"];
4. [request setFile:@"/Users/ben/Desktop/ben.jpg" forKey:@"photo"];
5. [request addData:imageData withFileName:@"george.jpg" andContentType:@"image/jpeg" forKey:@"photos"];

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1. ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
2. [request appendPostData:[@"This is my data" dataUsingEncoding:NSUTF8StringEncoding]];
3. // Default becomes POST when you use appendPostData: / appendPostDataFromFile: / setPostBody:
4. [request setRequestMethod:@"PUT"];

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1. [request responseStatusCode];
2. [[request responseHeaders] objectForKey:@"X-Powered-By"];
3. [request responseEncoding];

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1. //Create a cookie
2. NSDictionary *properties = [[[NSMutableDictionary alloc] init] autorelease];
3. [properties setValue:[@"Test Value" encodedCookieValue] forKey:NSHTTPCookieValue];
4. [properties setValue:@"ASIHTTPRequestTestCookie" forKey:NSHTTPCookieName];
5. [properties setValue:@".allseeing-i.com" forKey:NSHTTPCookieDomain];
6. [properties setValue:[NSDate dateWithTimeIntervalSinceNow:60*60] forKey:NSHTTPCookieExpires];
7. [properties setValue:@"/asi-http-request/tests" forKey:NSHTTPCookiePath];
8. NSHTTPCookie *cookie = [[[NSHTTPCookie alloc] initWithProperties:properties] autorelease];
9. //This url will return the value of the ‘ASIHTTPRequestTestCookie‘ cookie
10. url = [NSURL URLWithString:@"http://allseeing-i.com/ASIHTTPRequest/tests/read_cookie"];
11. request = [ASIHTTPRequest requestWithURL:url];
12. [request setUseCookiePersistence:NO];
13. [request setRequestCookies:[NSMutableArray arrayWithObject:cookie]];
14. [request startSynchronous];
15. //Should be: I have ‘Test Value‘ as the value of ‘ASIHTTPRequestTestCookie‘
16. NSLog(@"%@",[request responseString]);