AFNetworking POST 到 REST 网络服务 [英] AFNetworking POST to REST webservice
问题描述
简短的背景故事，我们之前的开发人员使用 ASIHTTPRequest 发出 POST 请求并从我们的网络服务中检索数据.由于未知原因，我们应用程序的这一部分停止工作.似乎有足够的时间来证明未来并使用 AFNetworking.REST web 服务在 CakePHP 框架上运行.
Brief backstory, our previous developer used ASIHTTPRequest to make POST requests and retrieve data from our webservice. For reasons unknown this portion of our app stopped working. Seemed like good enough time to future proof and go with AFNetworking. REST webservice runs on the CakePHP framework.
简而言之，我没有收到使用 AFNetworking 的请求响应字符串.
In short I am not receiving the request response string using AFNetworking.
我知道网络服务有效，因为我能够使用 curl 成功发布数据并接收正确的响应:curl -d "data[Model][field0]=field0value&data[Model][field1]=field1value" https://example.com/api/class/function.plist
I know the webservice works because I am able to successfully post data and receive the proper response using curl: curl -d "data[Model][field0]=field0value&data[Model][field1]=field1value" https://example.com/api/class/function.plist
根据之前开发人员的说明，我想出了以下内容.
Per the previous developer's instructions I came up with the following.
#import "AFHTTPRequestOperation.h"
…
- (IBAction)loginButtonPressed {
NSURL *url = [NSURL URLWithString:@"https://example.com/api/class/function.plist"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:@"POST"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setValue:[usernameTextField text] forHTTPHeaderField:@"data[User][email]"];
[request setValue:[passwordTextField text] forHTTPHeaderField:@"data[User][password]"];
AFHTTPRequestOperation *operation = [[[AFHTTPRequestOperation alloc] initWithRequest:request] autorelease];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(@"operation hasAcceptableStatusCode: %d", [operation.response statusCode]);
NSLog(@"response string: %@ ", operation.responseString);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"error: %@", operation.responseString);
}];
[operation start];
}
输出:操作 hasAcceptableStatusCode: 200响应字符串:一个空白的 plist 文件
output: operation hasAcceptableStatusCode: 200 response string: a blank plist file
尝试的解决方案1:AFNetworking 发布请求建议的解决方案使用一个名为 operationWithRequest 的 AFHTTPRequestOperation 函数.但是，当我尝试使用上述解决方案时，我收到一条警告类方法 '+operationWithRequest:completion:' 未找到(返回类型默认为 'id'"
attempted solution 1: AFNetworking Post Request the proposed solution uses a function of AFHTTPRequestOperation called operationWithRequest. However, when I attempt to use said solution I get a warning "Class method '+operationWithRequest:completion:' not found (return type defaults to 'id'"
尝试的解决方案2:NSURLConnection.输出:我可以打印成功日志消息，但不能打印响应字符串.*update - 返回空白 plist.
attempted solution 2: NSURLConnection. output: I'm able to print the success log messaged but not the response string. *update - returns blank plist.
NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url];
NSString *httpBodyData = @"data[User][email]=username@example.com&data[User][password]=awesomepassword";
[httpBodyData dataUsingEncoding:NSUTF8StringEncoding];
[req setHTTPMethod:@"POST"];
[req setHTTPBody:[NSData dataWithContentsOfFile:httpBodyData]];
NSHTTPURLResponse __autoreleasing *response;
NSError __autoreleasing *error;
[NSURLConnection sendSynchronousRequest:req returningResponse:&response error:&error];
// *update - returns blank plist
NSData *responseData = [NSURLConnection sendSynchronousRequest:req returningResponse:nil error:nil];
NSString *str = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
NSLog(@"responseData %@",str);
if (error == nil && response.statusCode == 200) {
// Process response
NSLog(@"success");//returns success code of 200 but blank
NSLog(@"resp %@", response );
} else {
// Process error
NSLog(@"error");
}
推荐答案
这些是最终满足我对 Web 服务的请求的基本(去除了我为自己使用而创建的条件)行.感谢@8vius 和@mattt 的建议！
These are the essential (stripping out conditions I've made for my own use) lines that ended up satisfying my request to the web service. Thanks for the suggestions @8vius and @mattt !
- (IBAction)loginButtonPressed {
NSURL *baseURL = [NSURL URLWithString:@"https://www.example.com/api/class"];
//build normal NSMutableURLRequest objects
//make sure to setHTTPMethod to "POST".
//from https://github.com/AFNetworking/AFNetworking
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:baseURL];
[httpClient defaultValueForHeader:@"Accept"];
NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
[usernameTextField text], kUsernameField,
[passwordTextField text], kPasswordField,
nil];
NSMutableURLRequest *request = [httpClient requestWithMethod:@"POST"
path:@"https://www.example.com/api/class/function" parameters:params];
//Add your request object to an AFHTTPRequestOperation
AFHTTPRequestOperation *operation = [[[AFHTTPRequestOperation alloc]
initWithRequest:request] autorelease];
//"Why don't I get JSON / XML / Property List in my HTTP client callbacks?"
//see: https://github.com/AFNetworking/AFNetworking/wiki/AFNetworking-FAQ
//mattt's suggestion http://stackoverflow.com/a/9931815/1004227 -
//-still didn't prevent me from receiving plist data
//[httpClient registerHTTPOperationClass:
// [AFPropertyListParameterEncoding class]];
[httpClient registerHTTPOperationClass:[AFHTTPRequestOperation class]];
[operation setCompletionBlockWithSuccess:
^(AFHTTPRequestOperation *operation,
id responseObject) {
NSString *response = [operation responseString];
NSLog(@"response: [%@]",response);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"error: %@", [operation error]);
}];
//call start on your request operation
[operation start];
[httpClient release];
}
这篇关于AFNetworking POST 到 REST 网络服务的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
