ios 使用 AFNetworking 进行异步 POST json 请求
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Using AFNetworking for asynchronous POST json requests
提问by Jonathan
I've been trying to use POST json using AFNetworking. After some research I finally got this to work
我一直在尝试使用 AFNetworking 使用 POST json。经过一番研究，我终于得到了这个工作
- (IBAction)go:(id)sender {
//Some POST
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:[NSURL URLWithString:@"https://www.test.com/"]];
[httpClient setParameterEncoding:AFJSONParameterEncoding];
NSMutableURLRequest *request = [httpClient requestWithMethod:@"POST"
path:@"https://www.test.com/user/login/"
parameters:@{@"username":self.username.text, @"password":self.password.text}];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[httpClient registerHTTPOperationClass:[AFHTTPRequestOperation class]];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
// Print the response body in text
NSDictionary *jsonDict = (NSDictionary *) responseObject;
BOOL *success = [[jsonDict objectForKey:@"success"] boolValue];
NSLog(@"Response: %@", [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding]);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"Error: %@", error);
}];
[operation start];
}
This is fine for demonstation purposes, but now I want to finally use NSDirectory to split out my json objects, so I tried doing something like this, but my app crashes whenever I enter click on the button
这对于演示目的很好，但现在我想最终使用 NSDirectory 来拆分我的 json 对象，所以我尝试做这样的事情，但是每当我输入单击按钮时，我的应用程序就会崩溃
- (IBAction)go:(id)sender {
//Some POST
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:[NSURL URLWithString:@"https://www.test.com/"]];
[httpClient setParameterEncoding:AFJSONParameterEncoding];
NSMutableURLRequest *request = [httpClient requestWithMethod:@"POST"
path:@"https://www.test.com/user/login/"
parameters:@{@"username":self.username.text, @"password":self.password.text}];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[httpClient registerHTTPOperationClass:[AFHTTPRequestOperation class]];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
// Print the response body in text
NSDictionary *jsonDict = (NSDictionary *) responseObject;
BOOL success = [[jsonDict objectForKey:@"success"] boolValue];
if (success) {
NSLog(@"yes!!!");
}else{
NSString *reason = [jsonDict objectForKey:@"reason"];
NSLog(@"reason: %@",reason);
}
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"Error: %@", error);
}];
[operation start];
}
error
错误
2013-03-08 03:27:34.648 test[18253:c07] -[__NSCFData objectForKey:]: unrecognized selector sent to instance 0x888a6b0
2013-03-08 03:27:34.648 test[18253:c07] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFData objectForKey:]: unrecognized selector sent to instance 0x888a6b0'
*** First throw call stack:
(0x1ce0012 0x111de7e 0x1d6b4bd 0x1ccfbbc 0x1ccf94e 0x24608 0x12e71 0x4a4453f 0x4a56014 0x4a467d5 0x1c86af5 0x1c85f44 0x1c85e1b 0x1c3a7e3 0x1c3a668 0x61ffc 0x21ad 0x20d5)
libc++abi.dylib: terminate called throwing an exception
回答by rckoenes
You are using AFHTTPRequestOperationand not AFJSONRequestOperation.
您正在使用AFHTTPRequestOperation而不是AFJSONRequestOperation.
Also you can use the AFHttpClientdirectly:
您也可以AFHttpClient直接使用：
NSDictionary *parameter = @{@"username":self.username.text, @"password":self.password.text};
[httpClient setParameterEncoding:AFJSONParameterEncoding];
[httpClient registerHTTPOperationClass:[AFJSONRequestOperation class]];
[httpClient postPath:@"api/v1/user/login/" parameters:parameter success:^(AFHTTPRequestOperation *operation, id responseObject) {
// Print the response body in text
BOOL *success = [[responseObject objectForKey:@"success"] boolValue];
NSLog(@"Response: %@",responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
[self handleConnectionError:error];
}];
I would also suggest creating a creating only one instance of the AFHTTPClientusing clientWithBaseURL:method.
我还建议创建一个只创建AFHTTPClientusingclientWithBaseURL:方法的一个实例。
回答by sarra srairi
with AFHTTPRequestOperationManager you will add your request manager in my case i've done a POST Method with NSdictionnary as a parameters
使用 AFHTTPRequestOperationManager 你将添加你的请求管理器在我的例子中我已经完成了一个 POST 方法，使用 NSdictionnary 作为参数
[manager GET:url parameters:parameters success:success failure:failure];
with this line you can choose your Method / GET OR POST
使用这一行，您可以选择您的方法/获取或发布
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
NSDictionary *parameters= dic;
NSMutableString *url = [[NSMutableString alloc] init];
[url appendString: RootObj.root];
[url appendString:@"/yourURL/"];
manager.requestSerializer=[AFHTTPRequestSerializer serializer];
manager.responseSerializer = [AFJSONResponseSerializer serializer];
[manager POST:url parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
}];
}
回答by sarra srairi
I was trying to send JSON object and getting back JSON data and parse it
我试图发送 JSON 对象并取回 JSON 数据并解析它
NSURL *url = [NSURL URLWithString:@"https://MySite.com/"];
AFHTTPClient *httpClient = [[AFHTTPClient alloc]initWithBaseURL:url];
//[httpClient setParameterEncoding:AFJSONParameterEncoding];
//[httpClient registerHTTPOperationClass:[AFJSONRequestOperation class]];
NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
@"Ans", @"name",
@"29", @"age", nil];
NSMutableURLRequest *request = [httpClient requestWithMethod:@"POST"
path:@"/testJSONReturn.php"
parameters:params];
AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
NSLog(@"DATA: %@", [JSON valueForKeyPath:@"data"]);
} failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
NSLog(@"Request Failure Because %@",[error userInfo]);
}];
[operation start];
Might help
可能有帮助
回答by lbsweek
another method, using AFHTTPRequestOperation:
另一种方法，使用 AFHTTPRequestOperation：
NSString* path = "http://www.test.com/file.php";
NSMutableURLRequest* request = [NSURLRequest requestWithURL:[NSURL URLWithString:path]];
//request.HTTPMethod = @"GET";
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc]initWithRequest:request];
//operation.responseSerializer = [AFJSONResponseSerializer serializer];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(@"success: %@", operation.responseString);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"error: %@", operation.responseString);
}];
[operation start];
