Question

我试图通过使用GeoNames API获得响应。在这里我的代码

  NSMutableDictionary * parameters = [[NSMutableDictionary alloc]initWithDictionary:params];

    NSURL *baseURL = [NSURL URLWithString:@"http://api.geonames.org/findNearbyPostalCodesJSON"];

    AFHTTPSessionManager * manager = [[AFHTTPSessionManager alloc] initWithBaseURL:baseURL];
    manager.responseSerializer = [AFJSONResponseSerializer serializer];

    [manager POST:@"" parameters:parameters success:^(NSURLSessionDataTask * _Nonnull task, id  _Nonnull responseObject) {

        [delegate didReceiveNearByLocationResponse:responseObject];

    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        NSLog(@"%@",error);

    }];

我收到了以下错误。

Domain=com.alamofire.error.serialization.response Code=-1011 "Request failed: forbidden (403)" UserInfo={NSUnderlyingError=0x7ff013d840f0 {Error Domain=com.alamofire.error.serialization.response Code=-1016 "Request failed: unacceptable content-type: text/html" UserInfo={com.alamofire.serialization.response.error.response=<NSHTTPURLResponse: 0x7ff013d07440> { URL: http://api.geonames.org/findNearbyPostalCodesJSON/ }

我尝试用hurl.it检查是否有响应。它即将到来。

惊喜是我使用相同的上述代码用于各种其他请求，只更改URL并且这些正常工作。

更新

之前它适用于以下代码。我做了一些代码质量调整，并将代码转移到上面。然后得到了问题

    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

        NSDictionary *params = @{@"lat": lat,
                                 @"lng": lon,
                                 @"username" : @"testing"
                                 };
        [manager POST:@"http://api.geonames.org/findNearbyPostalCodesJSON" parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {
}

Answer 1

当我在浏览器中输入URL http://api.geonames.org/findNearbyPostalCodesJSON时，我会得到以下JSON：

{"status":{"message":"Please add a username to each call in order for geonames to be able to identify the calling application and count the credits usage.","value":10}}

所以我怀疑，至少，你需要将'POST'更改为'GET'：

[manager GET:@"" parameters:parameters success:^(NSURLSessionDataTask * _Nonnull task, id  _Nonnull responseObject) {
    [delegate didReceiveNearByLocationResponse:responseObject];
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
    NSLog(@"%@",error);
}];

除此之外，基于返回的内容，您似乎需要一些额外的应用程序级逻辑来提供用户身份/身份验证，以便获取您感兴趣的实际数据，但上述更改应该在至少触发成功块的调用。

Answer 2

我找到了解决方案。我甚至将AFNetworking从2.X升级到3.0

和代码更改如下。特殊变更GET

AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc]initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
manager.requestSerializer = [AFJSONRequestSerializer serializer];

[manager GET:@"http://api.geonames.org/findNearbyPostalCodesJSON" parameters:params progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
    NSLog(@"success!");
    [delegate didReceiveNearByLocationResponse:responseObject];
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
    NSLog(@"error: %@", error);
}];

Answer 3

＆＃34;请求失败：不可接受的内容类型：text / html＆＃34;
因为AFNetworking只支持@＆＃34; application / json＆＃34;，@＆＃34; text / json＆＃34;，@＆＃34; text / javascript＆＃34;
你应该添加一个@＆＃34; text / html＆＃34;输入

[manager.responseSerializer.acceptableContentTypes setByAddingObject:@"text/html"];




NSMutableDictionary * parameters = [[NSMutableDictionary alloc]initWithDictionary:params];

    NSURL *baseURL = [NSURL URLWithString:@"http://api.geonames.org/findNearbyPostalCodesJSON"];

    AFHTTPSessionManager * manager = [[AFHTTPSessionManager alloc] initWithBaseURL:baseURL];
    manager.responseSerializer = [AFJSONResponseSerializer serializer];

    //insert this code
    [manager.responseSerializer.acceptableContentTypes setByAddingObject:@"text/html"];

    [manager POST:@"" parameters:parameters success:^(NSURLSessionDataTask * _Nonnull task, id  _Nonnull responseObject) {

        [delegate didReceiveNearByLocationResponse:responseObject];

    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        NSLog(@"%@",error);

    }];

AFNetworking Response仅针对特定URL的错误

3 个答案: