先來說一下AFNetworking從1.0到3.0的發展:
AFNetworking 1.0完全基于NSURLConnection的API;AFNetworking 2.0在基于NSURLConnection的API基礎上,添加了基于NSURLSession的API選項;AFNetworking 3.0則是拋棄的NSURLConnection,完全基于NSURLSession的API.這也是基于蘋果棄用NSURLConnection而不得已做出的選擇.
我們在開發中會遇到許多使用AFNetworking2.X或更老的AFNetworking庫,它們與最新的AFNetworking是無法兼容的.原因如下:
1.AFNetworking 3.0移除了下面三個類
AFURLConnectionOperation
AFHTTPRequestOperation
AFHTTPRequestOperationManager
2.AFNetworking 3.0修改了下面三個類
UIImageView+AFNetworking
UIWebView+AFNetworking
UIButton+AFNetworking
對以上類的移除和修改導致了AFNetworking3.0無法向上兼容.所以我們在AFNetworking3.0的環境下,就不能去使用AFNetworking3.0之前封裝的網絡工具類了.解決辦法有兩個,一個是修改網絡工具類,另一個就是重寫網絡工具類(好吧,其實這就是一個方法).
如何使用AFNetworking3.0重寫網絡工具類?
1.建立會話
AFHTTPSessionManager *session =[AFHTTPSessionManager manager];
session.requestSerializer=[AFJSONRequestSerializer serializer];
NSMutableDictionary*parameters=[NSMutableDictionary dictionary];
parameters[@"start"] =@"1";
parameters[@"end"] =@"5";
2.get請求
[session GET:urlStr parameters:parameters progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id? _Nullable responseObject) {
successBlock(responseObject);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
failureBlock(error);
}];
3.post請求
[session POST:urlStr parameters:parameters progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id? _Nullable responseObject) {
successBlock(responseObject);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
failureBlock(error);
}];
封裝一個通用的網絡請求方式:
1.單例類
+ (instancetype)sharedTools {
static QLMNetworkTools *tools;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
tools = [[QLMNetworkTools alloc] initWithBaseURL:[NSURL URLWithString:@"http://www.baidu.com"]];
tools.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json", @"text/json", @"text/javascript", @"text/html", nil];
});
return tools;
}
2.通用的請求方式
- (void)requestWithType: (RequestType)requestType andUrlStr: (NSString *)urlStr andParams: (id)parameters andSuccess: (void (^)(id responseObject))successBlock andFailture: (void (^)(NSError *error))failureBlock{
if (requestType == GET) {
[self GET:urlStr parameters:parameters progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id? _Nullable responseObject) {
successBlock(responseObject);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
failureBlock(error);
}];
} else {
[self POST:urlStr parameters:parameters progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id? _Nullable responseObject) {
successBlock(responseObject);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
failureBlock(error);
}];
}
}
