我在我的iOS应用程序中使用LinkedIn.我想保存访问令牌以供将来使用.
令牌属于非属性类型,无法直接保存在NSUserDefaults中.
我尝试使用NSKeyedArchiver,但我得到了输出：
Token===oauth_token "(null)" oauth_token_secret "(null)" oauth_verifier "(null)"
令牌中的文本即将到来,但值将为空.
代码段1：
-(void)saveData :(LOAToken *)token
{
NSFileManager *filemgr;
NSString *docsDir;
NSArray *dirPaths;
filemgr = [NSFileManager defaultManager];
// Get the documents directory
dirPaths = NSSearchPathForDirectoriesInDomains(
NSDocumentDirectory,NSUserDomainMask,YES);
docsDir = [dirPaths objectAtIndex:0];
// Build the path to the data file
NSString *dataFilePath = [[NSString alloc] initWithString: [docsDir
stringByAppendingPathComponent: @"data.archive"]];
[NSKeyedArchiver archiveRootObject:
token toFile:dataFilePath];
}
-(LOAToken *)GetToken
{
NSFileManager *filemgr;
NSString *docsDir;
NSArray *dirPaths;
filemgr = [NSFileManager defaultManager];
// Get the documents directory
dirPaths = NSSearchPathForDirectoriesInDomains(
NSDocumentDirectory,YES);
docsDir = [dirPaths objectAtIndex:0];
// Build the path to the data file
NSString *dataFilePath = [[NSString alloc] initWithString: [docsDir
stringByAppendingPathComponent: @"data.archive"]];
// Check if the file already exists
if ([filemgr fileExistsAtPath: dataFilePath])
{
LOAToken *token;
token = [NSKeyedUnarchiver
unarchiveObjectWithFile: dataFilePath];
return token;
}
return NULL;
}
我也尝试像这样保存,但结果是一样的：
Token===oauth_token "(null)" oauth_token_secret "(null)" oauth_verifier "(null)"
代码段2：
NSData *myEncodedObject = [NSKeyedArchiver archivedDataWithRootObject:self.accessToken];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:myEncodedObject forKey:@"myEncodedObjectKey"];
[defaults synchronize];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSData *myEncodedObject = [defaults objectForKey:@"myEncodedObjectKey"];
LOAToken *obj = (LOAToken *)[NSKeyedUnarchiver unarchiveObjectWithData: myEncodedObject];
我的编码或访问令牌有什么问题需要一些特殊技术来保存吗？请建议.
解决方法
这就是我拯救的方式.它对我有用.希望它有所帮助
- (void)accessTokenResult:(OAServiceTicket *)ticket didFinish:(NSData *)data
{
NSDictionary *dict;
NSString *responseBody = [[NSString alloc] initWithData:data
encoding:NSUTF8StringEncoding];
BOOL problem = ([responseBody rangeOfString:@"oauth_problem"].location != NSNotFound);
if (problem)
{
DLog(@"Request access token Failed.");
DLog(@"%@",responseBody);
dict = [NSDictionary dictionaryWithObjectsAndKeys:@"0",@"success",@"Request access token Failed.",@"reason",nil];
}
else
{
self.accessToken = [[OAToken alloc] initWithHTTPResponseBody:responseBody];
[[NSUserDefaults standardUserDefaults] setObject:responseBody forKey:@"accessToken"];//save here
[[NSUserDefaults standardUserDefaults] setObject:[NSDate date] forKey:@"TokenRefreshDate"];//save here
[[NSUserDefaults standardUserDefaults] synchronize];
dict = [NSDictionary dictionaryWithObjectsAndKeys:@"1",@"Login Successful",nil];
}
// Notify parent and close this view
[[NSNotificationCenter defaultCenter] postNotificationName:@"loginViewDidFinish" object:self userInfo:dict];
[self dismissViewControllerAnimated:YES completion:^{
}];
}
以这种方式使用保存的responseBody
self.accessToken = [[NSUserDefaults standardUserDefaults] valueForKeyPath:@"accessToken"];
NSURL *url = [NSURL URLWithString:@"http://api.linkedin.com/v1/people/~/connections:(id,first-name,last-name,headline,maiden-name,picture-url,formatted-name,location,positions,public-profile-url,specialties,num-connections,industry)"];
OAMutableURLRequest *request = [[OAMutableURLRequest alloc] initWithURL:url
consumer:self.consumer
token:[[OAToken alloc] initWithHTTPResponseBody:self.accessToken]
callback:nil
signatureProvider:nil];
[request setValue:@"json" forHTTPHeaderField:@"x-li-format"];
OADataFetcher *fetcher = [[OADataFetcher alloc] init];
[fetcher fetchDataWithRequest:request
delegate:self
didFinishSelector:@selector(connectionsApiCallResult:didFinish:)
didFailSelector:@selector(connectionsApiCallResult:didFail:) withId:0];
我希望这次我很清楚