ios - AFHTTPClient 和 gzip

Question

我有一个扩展 AFHTTPClient 的 Web 服务类 (MyAPIClient)。所有对 Web 服务器的请求都使用 postPath 方法发送，数据为 JSON 格式。 MyAPIClient 只包含一个方法:

- (id)initWithBaseURL:(NSURL *)url
{
    self = [super initWithBaseURL:url];
    if (!self) {
        return nil;
    }
    [self setDefaultHeader:@"Accept" value:@"application/json"];
    [self setParameterEncoding:AFJSONParameterEncoding];
    [self registerHTTPOperationClass:[AFJSONRequestOperation class]];   

    return self;
}

现在我想添加 gzip 编码。作为FAQ说:

Simply take the HTTPBody from a NSMutableURLRequest, compress the data, and re-set it before creating the operation using the request.

我得到了 Godzippa 库，所以我可以压缩数据。接下来我想我需要重写 postPath 方法，像这样:

-(void)postPath:(NSString *)path parameters:(NSDictionary *)parameters success:(void (^)(AFHTTPRequestOperation *, id))success failure:(void (^)(AFHTTPRequestOperation *, NSError *))failure
{
    NSMutableURLRequest *request = [self requestWithMethod:@"POST" path:path parameters:parameters];
    NSData *newData = [[request HTTPBody] dataByGZipCompressingWithError:nil];    
    [request setHTTPBody:newData];

    [self setDefaultHeader:@"Content-Type" value:@"application/gzip"];

    AFHTTPRequestOperation *operation = [self HTTPRequestOperationWithRequest:request success:success failure:failure];
    [self enqueueHTTPRequestOperation:operation];

}

我认为这不是正确的方法，因为 AFHTTPClient 需要将 NSDictionary 转换为 JSON，然后我才能在 gzip 中编码并设置正确的“Content-Type”，对吗？任何帮助，将不胜感激。

Answer 1

如果有人有同样的问题，这是我的解决方案(Godzippa 对我不起作用，所以我使用不同的库来编码数据):

- (id)initWithBaseURL:(NSURL *)url
{
    self = [super initWithBaseURL:url];
    if (!self) {
        return nil;
    }
    [self setDefaultHeader:@"Content-Type" value:@"application/json"];
    [self setDefaultHeader:@"Content-Encoding" value:@"gzip"];
    [self registerHTTPOperationClass:[AFJSONRequestOperation class]];

    return self;
}

-(void)postPath:(NSString *)path parameters:(NSDictionary *)parameters success:(void (^)(AFHTTPRequestOperation *, id))success failure:(void (^)(AFHTTPRequestOperation *, NSError *))failure
{
    NSData *newData = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:NULL];
    newData = [newData  gzipDeflate];

    NSMutableURLRequest *request = [self requestWithMethod:@"POST" path:path parameters:nil];    
    [request setHTTPBody:newData];

    AFHTTPRequestOperation *operation = [self HTTPRequestOperationWithRequest:request success:success failure:failure];
    [self enqueueHTTPRequestOperation:operation];
}