今天来体验一下AFNetworking3,首先试试http get,请求一个json数据,注意json需要指定Content-Type,代码:

NSURL *URL = [NSURLURLWithString:@"http://localhost:8833/info"];

AFHTTPSessionManager *manager = [AFHTTPSessionManagermanager];

//下面这句不加,会提示这个错误:NSLocalizedDescription=Request failed: unacceptable content-type: text/plain

manager.responseSerializer.acceptableContentTypes=[manager.responseSerializer.acceptableContentTypessetByAddingObject:@"text/plain"];

[manager GET:URL.absoluteStringparameters:nilsuccess:^(NSURLSessionTask *task, id responseObject) {

   NSLog(@"JSON: %@", responseObject);

} failure:^(NSURLSessionTask *operation, NSError *error) {

   NSLog(@"Error: %@", error);

}];