AFNetworking 2.0 使用总结
iOS应用开发，存在网络请求是在所难免的，而AFNetworking是一个很不错的选择。以下是本人对AFNetworking请求的一些总结，但愿能帮到大家！
1.JSON Post请求
NSString *strName = @"user1"; NSString *strPsw = @"pwd1"; AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; manager.requestSerializer = [AFJSONRequestSerializer serializer]; NSDictionary *parameters = [NSDictionary dictionaryWithObjectsAndKeys:strName, @"user", strPsw, @"password", nil]; NSString *strURL = [GT123_ServerHost stringByAppendingString:GT123_LogonServlet]; [manager POST:strURL parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) { if (responseObject != nil) { NSDictionary *dicRes = responseObject; NSString *strState = [dicRes objectForKey:@"state"]; if (strState && [strState isEqualToString:@"success"]) { NSString *strSession = [dicRes objectForKey:@"session"]; NSLog(@"%@", strSession); } else { } } else { } } failure:^(AFHTTPRequestOperation *operation, NSError *error) { }];上段代码是用户登录请求，用到了AFHTTPRequestOperationManager的POST请求。请求参数放到NSDictionary里（NSMutableDictionary也可），strURL是请求服务地址，success和failure后面写请求回调内容。返回内容responseObject其实是一个NSDictionary对象，解析比较容易。 2.JSON Get请求
long long lTimestamp = [[NSDate date] timeIntervalSince1970] * 1000; AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; NSString *strURL = [NSString stringWithFormat:@"%@%@?max=20&et=%lld",GT123_ServerHost,GT123_GetNewsListBeforeServlet, lTimestamp]; [manager GET:strURL parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) { if (responseObject != nil) { NSDictionary *dicRes = responseObject; NSString *strState = [dicRes objectForKey:@"state"]; if (strState && [strState isEqualToString:@"success"]) { NSArray *lNews = [dicRes objectForKey:@"post_list"]; if (lNews && lNews.count > 0) { NSLog(@"news count - %lu", (unsigned long)lNews.count); } } else { } } else { } } failure:^(AFHTTPRequestOperation *operation, NSError *error) { }];上段代码是获取新闻列表的具体实现，用到了AFHTTPRequestOperationManager的GET请求。所以请求参数放到strURL里。请求返回内容responseObject也是一个NSDictionary对象。3.图片上传
- (void)uploadImg:(UIImage *)img withName:(NSString *)imgName { NSData *imageData = UIImageJPEGRepresentation(img, 1.0); NSMutableDictionary *parameters = [[NSMutableDictionary alloc] init]; [parameters setObject:imgName forKey:@"name"]; [parameters setObject:@"jpg" forKey:@"type"]; AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; manager.requestSerializer = [AFJSONRequestSerializer serializer]; NSString *strURL = [GT123_ServerHost stringByAppendingString:GT123_UploadPostPictureServlet]; [manager POST:strURL parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) { if (imageData) { [formData appendPartWithFileData:imageData name:imgName fileName:imgName mimeType:@"image/jpeg"]; } } success:^(AFHTTPRequestOperation *operation, id responseObject) { if (responseObject) { NSDictionary *dicRes = responseObject; NSString *strState = [dicRes objectForKey:@"state"]; if (strState && [strState isEqualToString:@"success"]) { NSLog(@"upload success!"); } else { } } else { } } failure:^(AFHTTPRequestOperation *operation, NSError *error) { }]; }以上代码通过post方法将图片上传到服务器。与上述所讲json post请求不同，这里需要填充constructingBodyWithBlock内容，也就是图片数据和参数。图片数据是NSData类型，需要将UIImage转成NSData。如果需要传其他参数的话，放到parameters里，同图片数据一起上传服务器。 [formData appendPartWithFileData:imageData name:imgName fileName:imgName mimeType:@"image/jpeg"];上一行代码里name和fileName参数可以随意给个值，不要太纠结。
返回内容还是一个NSDictionary对象。
AFNetworking请求方面，本人的总结暂时有这些，后续再补上...
本文由用户 jopen 自行上传分享，仅供网友学习交流。所有权归原作者，若您的权利被侵害，请联系管理员。
转载本站原创文章，请注明出处，并保留原始链接、图片水印。
本站是一个以用户分享为主的开源技术平台，欢迎各类分享！