Question

如何更新此已弃用的功能以使用AFNetworking 3.0？

AFHTTPRequestOperation *requestOperation=[[AFHTTPRequestOperation alloc] initWithRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:_URLString]]];
    [requestOperation setRedirectResponseBlock:^NSURLRequest *(NSURLConnection *connection, NSURLRequest *request, NSURLResponse *redirectResponse) {
        if (redirectResponse) {
            //this is the redirected url
            NSLog(@"%@",request.URL);
        }
        return request;
    }];
    [requestOperation start];

Answer 1

在setTaskWillPerformHTTPRedirectionBlock上使用AFHTTPSessionManager。如果初始URL请求重定向，则将调用块集。您可以选择遵循重定向，也可以停止阻止重定向。

AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
[manager setTaskWillPerformHTTPRedirectionBlock:^NSURLRequest * _Nonnull(NSURLSession * _Nonnull session, NSURLSessionTask * _Nonnull task, NSURLResponse * _Nonnull response, NSURLRequest * _Nonnull request) {
    NSLog(@"%@", request.URL);
    // This will be called if the URL redirects
    return request; // return request to follow the redirect, or return nil to stop the redirect
}];
[manager GET:_URLString parameters:nil progress:nil success:^(NSURLSessionTask *task, id responseObject) {
    NSLog(@"Response: %@", responseObject);
} failure:^(NSURLSessionTask *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];

我建议你仔细阅读AFNetworking 3.0 Migration Guide。

Answer 2

在某些情况下，您需要为请求设置标头，只需使用requestSerializer设置requestSerializer setValue: forHTTPHeaderField:，如下所示：

AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
[manager.requestSerializer setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];

[manager setTaskWillPerformHTTPRedirectionBlock:^NSURLRequest * _Nonnull(NSURLSession * _Nonnull session, NSURLSessionTask * _Nonnull task, NSURLResponse * _Nonnull response, NSURLRequest * _Nonnull request) {
    NSLog(@"%@", request.URL);
    // This will be called if the URL redirects
    return request; // return request to follow the redirect, or return nil to stop the redirect
}];
[manager GET:_URLString parameters:nil progress:nil success:^(NSURLSessionTask *task, id responseObject) {
    NSLog(@"Response: %@", responseObject);
} failure:^(NSURLSessionTask *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];

用于重定向块的AFNetworking 3.0迁移

2 个答案: