Question

我习惯使用ASIHTTPRequest：

NSURL *url = [NSURL URLWithString:@"http://data.mywebsite/api/views/INLINE/rows.json?method=index"];

    ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
    request.requestMethod = @"POST";    
    [request addRequestHeader:@"Content-Type" value:@"application/json"];
    [request appendPostData:[json dataUsingEncoding:NSUTF8StringEncoding]];

    [request setDelegate:self];
    [request setCompletionBlock:^{        
        NSString *responseString = [request responseString];
        NSLog(@"Response: %@", responseString);
    }];
    [request setFailedBlock:^{
        NSError *error = [request error];
        NSLog(@"Error: %@", error.localizedDescription);
    }];

    [request startAsynchronous];

由于不再维护ASIHTTPRequest，我转移到AFNetworking API。但是，当从逻辑移动到另一个不同时，它有点令人困惑，我想知道如何使用AFNetworking传递相同的请求。

提前完成。

Answer 1

NSURL *url = [NSURL URLWithString:@"http://data.mywebsite/api"];   
AFHTTPClient *client = [[[AFHTTPClient alloc] initWithBaseURL:url];
[client registerHTTPOperationClass:[AFJSONRequestOperation class]];
[client postPath:@"views/INLINE/rows.json?method=index"
      parameters:json
         success:^(AFHTTPRequestOperation *operation, id responseObject) {
           NSLog(@"Response: %@", operation.responseString);
         } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
           NSLog(@"Error: %@", error);
}];

Answer 2

我刚开始使用AFNetworking。经过一番摔跤（和一个愚蠢的错误）后，我能够让下面的POST例程发布并与userName一起成像。

有一件事 - 不知道是否需要 - 但我初始化并保留AFHTTPClient的实例。还要创建一个NSOperationQueue实例来管理请求。

无论如何 - 希望下面的代码有一些用处。它对我有用。

//在viewDidLoad

中初始化的属性

 client = [[AFHTTPClient alloc ]initWithBaseURL: [NSURL URLWithString:@"http://example.com/test/"]];

//方法

- (void)test
{

UIImage * img = [self.paintingView  snapUIImage];
NSData *imageData = UIImageJPEGRepresentation(img, .5);

NSMutableDictionary * lParameters = [NSMutableDictionary dictionary];
[lParameters setObject:@"binky" forKey:@"user"];

NSMutableURLRequest *myRequest = 
[client multipartFormRequestWithMethod:@"POST" 
                                    path:@"loader.php"
                            parameters:lParameters 
             constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {
                     [formData appendPartWithFileData:imageData name:@"userfile" fileName:@"image.jpg" mimeType:@"images/jpg"];
                 }];

[myRequest setTimeoutInterval: 5];

AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:myRequest];
[operation setUploadProgressBlock:^(NSInteger bytesWritten, NSInteger totalBytesWritten, NSInteger totalBytesExpectedToWrite) {

    NSLog(@"Sent %d of %d bytes", totalBytesWritten, totalBytesExpectedToWrite);
}];

[operation setCompletionBlock:^{
    NSLog(@"%@", operation.responseString); //Lets us know the result including failures

}];

NSOperationQueue *queue = [[NSOperationQueue alloc] init];
[queue addOperation:operation];

}

发送HTTP请求并解析JSON响应

2 个答案: