YiNetwork是一個的HTTP請求封裝庫，基于AFNetworking的AFHTTPSessionManager。

YiNetwork主要是一個基類庫，主要是兩個類YiBaseRequest和YiBaseModel.

之所以創建兩個基類，是為了讓各個請求之間的耦合性降低，能夠非常簡單的實現一個請求，并且在上層很簡單調用一個請求。每一個請求一個子類也非常能夠方便團隊協作，每個人都可以管理自己的請求模塊。

另外，由于Apple在網絡請求方面由NSURLConnection（iOS 2-9）轉向NSURLSession（iOS7以上）,隨之AFNetworking 3.0也就廢棄了NSURLConnection相關的 AFURLConnectionOperation，AFHTTPRequestOperation，AFHTTPRequestOperationManager 三個類，并且建議使用AFHTTPSessionManager，所以YiBaseRequest也是基于AFHTTPSessionManager的封 裝。

YiNetwork目前依賴JSONModel version1.1.2和AFNetworking version2.6.1，是一套值得選擇的App請求方案。

Podfile

platform?:ios,?'7.0'pod?"YiNetwork",?"~>?0.9.2"

YiBaseModel

YiBaseModel繼承自第三方庫JSONModel，當然你也可以不用使用它，自己解析JSON數據或者其它格式的數據

YiBaseRequest

YiBaseRequest必須子類化

屬性

@property?(nonatomic,?strong)?NSMutableDictionary?*getParams;
@property?(nonatomic,?strong)?NSMutableDictionary?*postParams;

可以在子類自定義的init方法里面，加入需要的GET參數或者POST參數

@property?(nonatomic,?assign)?NSInteger?retryCount;
@property?(nonatomic,?assign)?NSInteger?retryIndex;

retryCount表示請求出錯時重試的次數，默認為0；retryIndex表示正在重試第幾次

方法

?- (void)requestWithSuccess:(void(^)(YiBaseModel *model,NSURLSessionTask *task))success
? ? ? ? ? ? ? ? ? failure:(void(^)(NSError *error,NSURLSessionTask *task))failure;

數據請求的方法，只要在上層調用該方法就可以獲得請求成功或者失敗的反饋，以得到YiBaseModel的數據。

-?(YiHTTPRequestMethod)requestMethod;

需要實現的子類方法，表示請求方法，默認是YiHTTPRequestMethodGet為GET請求

-?(YiBaseModel?*)responseModelWithData:(id)data;

處理請求到得數據

-?(NSString?*)pathName;
-?(NSString?*)rootUrl;

pathName表示請求的具體URL路徑；rootUrl表示請求的URL

-?(AFConstructingBlock)constructingBodyBlock;

當需要上傳文件時可以使用

-?(void)cancel;

取消當前的NSURLSessionTask對象，也就是取消這次請求

發送一個GET請求

只要分別子類化YiBaseRequest和YiBaseModel，在上層使用就非常簡單

//通過GET請求獲取用戶信息
????YiGetUserInfoRequest?*getUserInfoRequest=[[YiGetUserInfoRequest?alloc]?init];
????[getUserInfoRequest?requestWithSuccess:^(YiBaseModel?*model,NSURLSessionTask?*task){
????????
????????NSLog(@"username?is?%@",((YiUserInfoModel?*)model).name);
????????
????}?failure:^(NSError?*error,NSURLSessionTask?*task){
????????
????}];

子類化YiBaseModel為YiUserInfoModel

@interface?YiUserInfoModel?:?YiBaseModel
@property(nonatomic,strong)?NSString?*name;
@end

子類化YiBaseRequest為YiGetUserInfoRequest

@implementation?YiGetUserInfoRequest
-(instancetype)init{
????self?=?[super?init];
????if?(self)?{
????????
????}
????return?self;
}
-(instancetype)initWithNameId:(NSString?*)nameId?{
????self?=?[super?init];
????if?(self)?{
????????
????????[self.getParams?setValue:nameId?forKey:@"name_id"];
????????
????}
????return?self;
}
-?(NSString?*)pathName
{
????return?@"users/coderyi";
}
-?(YiHTTPRequestMethod)requestMethod
{
????return?YiHTTPRequestMethodGet;
}
-?(YiBaseModel?*)responseModelWithData:(id)data
{
????
????return?[[YiUserInfoModel?alloc]?initWithDictionary:data?error:nil];
}
@end

發送一個POST請求

//通過POST請求修改用戶信息
????YiModifyUserInfoRequest?*modifyUserInfoRequest=[[YiModifyUserInfoRequest?alloc]?initWithNameId:@"coderyi"];
????[modifyUserInfoRequest?requestWithSuccess:^(YiBaseModel?*model,NSURLSessionTask?*task){
????????
????????NSLog(@"username?is?%@",((YiUserInfoModel?*)model).name);
????????
????}?failure:^(NSError?*error,NSURLSessionTask?*task){
????????
????}];

子類化YiBaseRequest為YiModifyUserInfoRequest

@implementation?YiModifyUserInfoRequest
-(instancetype)initWithNameId:(NSString?*)nameId?{
????self?=?[super?init];
????if?(self)?{
????????
????????[self.postParams?setValue:nameId?forKey:@"name_id"];
????????
????}
????return?self;
}
-?(NSString?*)pathName
{
????return?@"users/coderyi";
}
-?(YiHTTPRequestMethod)requestMethod
{
????return?YiHTTPRequestMethodPost;
}
-?(YiBaseModel?*)responseModelWithData:(id)data
{
????
????return?[[YiUserInfoModel?alloc]?initWithDictionary:data?error:nil];
}

@end

上傳圖片

?//上傳一張圖片
????????UIImage?*image;
????????YiUploadImageRequest?*uploadImageRequest=[[YiUploadImageRequest?alloc]?initWithImage:image];
????????[uploadImageRequest?requestWithSuccess:^(YiBaseModel?*model,NSURLSessionTask?*task){
????????????NSLog(@"model?is?%@",model);
????
????????}?failure:^(NSError?*error,NSURLSessionTask?*task){
????????????
????????}];

子類化YiBaseRequest為YiUploadImageRequest

@implementation?YiUploadImageRequest{
????UIImage?*_image;
}


-?(id)initWithImage:(UIImage?*)image?{
????self?=?[super?init];
????if?(self)?{
????????_image?=?image;
????}
????return?self;
}
-?(AFConstructingBlock)constructingBodyBlock?{
????return?^(id?formData)?{
????????NSData?*data?=?UIImageJPEGRepresentation(_image,?0.9);
????????NSString?*name?=?@"image";
????????NSString?*formKey?=?@"image";
????????NSString?*type?=?@"image/jpeg";
????????[formData?appendPartWithFileData:data?name:formKey?fileName:name?mimeType:type];
????};
}
@end