ios - AFHTTPSessionManager header

Question

我正在尝试通过设置 HTTPAdditionalHeaders 为“Content-Type”设置默认 header 。当我查看请求 header 时，AFNetworking (v 2.0.3) 将其改回。我还尝试通过 setValue:forHTTPHeaderField: 在 requestSerializer 上设置 header ，但没有成功。我缺少什么？

已更新

    NSURL *URL = [NSURL URLWithString:@"http://example.com/api"];

    NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
    configuration.HTTPAdditionalHeaders = @{@"Content-Type": @"multipart/form-data"};

    AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] initWithBaseURL:URL sessionConfiguration:configuration];
    manager.responseSerializer = [AFJSONResponseSerializer serializer];

    NSMutableDictionary *params = [[NSMutableDictionary alloc]init];
    [params setValue:@"some value" forKey:@"someKey"];

    [manager POST:@"search" parameters:params success:^(NSURLSessionDataTask *task, id responseObject) {
        NSLog(@"success");
    } failure:^(NSURLSessionDataTask *task, NSError *error) {
        NSLog(@"error");
    }];

Answer 1

我认为 AFNetworking 会自动设置 Content-Type，您无法更改它。使用 Content-Type multipart/form-data 发送数据:

NSURL *URL = [NSURL URLWithString:@"http://example.com/api"];
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];

AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] initWithBaseURL:URL sessionConfiguration:configuration];
manager.responseSerializer = [AFJSONResponseSerializer serializer];

NSMutableDictionary *params = [[NSMutableDictionary alloc]init];
[params setValue:@"some value" forKey:@"someKey"];

[manager POST:@"search" parameters:params constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
    //If you need to send image
    UIImage *image = [UIImage imageNamed:@"my_image.jpg"];
    [formData appendPartWithFileData:UIImageJPEGRepresentation(image, 0.5) name:@"Image" fileName:@"my_image.jpg" mimeType:@"image/jpeg"];

} success:^(NSURLSessionDataTask *task, id responseObject) {

} failure:^(NSURLSessionDataTask *task, NSError *error) {

}];