AFN3.0API调用

关于AFNetworking 3.0NSURLConnection的API已废弃

---

AFNetworking 1.0 是建立在 NSURLConnection基础上的，AFNetworking 2.0 开始使用基于NSURLConnection *API基础功能，同时也有基于新的NSURLSession* API 的功能实现。AFNetworking 3.0现在是专门建立在 NSURLSession 顶层的，这降低了维护负担，同时允许支持苹果为 NSURLSession 提供的任何额外的增强的特性。在Xcode 7，NSURLConnection API 已经被苹果官方弃用。然而API函数将继续使用不会受影响，只不过再也不会添加新的功能了，苹果建议所有基于网络的功能在未来都能使用NSURLSession。

3.0 被移除的类有

• AFURLConnectionOperation • AFHTTPRequestOperation • AFHTTPRequestOperationManager

---

转而替代的是

• AFURLSessionManager • AFHTTPSessionManager

下面的方法也是基于NSURLSession进行封装的 所有的请求方法都在NetWorkManager.m进行统一设置，并且全部为类方法(调用方便)

主要实现的功能

1.文件下载 2.多图压缩上传 3.视频上传（文件上传,音频上传类似） 4.取消所有的网络请求 5.取消指定的网络请求

暂未考虑缓存请求到的数据

干货来了：
1----->基本的post,get请求--->.h

/**

 *  网络请求的实例方法

 *

 *  @param type         get / post

 *  @param urlString    请求的地址

 *  @param paraments    请求的参数

 *  @param successBlock 请求成功的回调

 *  @param failureBlock 请求失败的回调

 *  @param progress 进度

 */

+(void)requestWithType:(HttpRequestType)type withUrlString:(NSString *)urlString withParaments:(id)paraments withSuccessBlock:( requestSuccess)successBlock withFailureBlock:( requestFailure)failureBlock progress:(downloadProgress)progress;

基本的post,get请求实现---->.m

/**

 *  网络请求的实例方法

 *

 *  @param type         get / post

 *  @param urlString    请求的地址

 *  @param paraments    请求的参数

 *  @param successBlock 请求成功的回调

 *  @param failureBlock 请求失败的回调

 *  @param progress 进度

 */

 

+(void)requestWithType:(HttpRequestType)type withUrlString:(NSString *)urlString withParaments:(id)paraments withSuccessBlock:(requestSuccess)successBlock withFailureBlock:(requestFailure)failureBlock progress:(downloadProgress)progress

{

 

 

    switch (type) {

 

        case HttpRequestTypeGet:

        {

 

 

            [[NetWorkManager shareManager] GET:urlString parameters:paraments progress:^(NSProgress * _Nonnull downloadProgress) {

 

                progress(downloadProgress.completedUnitCount / downloadProgress.totalUnitCount);

 

            } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

 

                      successBlock(responseObject);

 

            } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

 

                       failureBlock(error);

            }];

 

            break;

        }

 

        case HttpRequestTypePost:

 

        {

 

            [[NetWorkManager shareManager] POST:urlString parameters:paraments progress:^(NSProgress * _Nonnull uploadProgress) {

 

                progress(uploadProgress.completedUnitCount / uploadProgress.totalUnitCount);

 

 

            } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

 

                    successBlock(responseObject);

 

            } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

 

                     failureBlock(error);

 

            }];

        }

 

    }

 

}

2----->上传图片
.h

/**

 *  上传图片

 *

 *  @param operations   上传图片预留参数---视具体情况而定 可移除

 *  @param imageArray   上传的图片数组

 *  @parm width      图片要被压缩到的宽度

 *  @param urlString    上传的url

 *  @param successBlock 上传成功的回调

 *  @param failureBlock 上传失败的回调

 *  @param progress     上传进度

 */

 

+(void)uploadImageWithOperations:(NSDictionary *)operations withImageArray:(NSArray *)imageArray withtargetWidth:(CGFloat )width withUrlString:(NSString *)urlString withSuccessBlock:(requestSuccess)successBlock withFailurBlock:(requestFailure)failureBlock withUpLoadProgress:(uploadProgress)progress;

.m

/**

 *  上传图片

 *

 *  @param operations   上传图片等预留参数---视具体情况而定 可移除

 *  @param imageArray   上传的图片数组

 *  @parm width      图片要被压缩到的宽度

 *  @param urlString    上传的url---请填写完整的url

 *  @param successBlock 上传成功的回调

 *  @param failureBlock 上传失败的回调

 *  @param progress     上传进度

 *

 */

+(void)uploadImageWithOperations:(NSDictionary *)operations withImageArray:(NSArray *)imageArray withtargetWidth:(CGFloat )width withUrlString:(NSString *)urlString withSuccessBlock:(requestSuccess)successBlock withFailurBlock:(requestFailure)failureBlock withUpLoadProgress:(uploadProgress)progress;

{

    //1.创建管理者对象

      AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

 

     [manager POST:urlString parameters:operations constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {

 

        NSUInteger i = 0 ;

 

        /**出于性能考虑,将上传图片进行压缩*/

        for (UIImage * image in imageArray) {

 

            //image的分类方法

            UIImage *  resizedImage =  [UIImage IMGCompressed:image targetWidth:width];

 

            NSData * imgData = UIImageJPEGRepresentation(resizedImage, .5);

 

            //拼接data

            [formData appendPartWithFileData:imgData name:[NSString stringWithFormat:@"picflie%ld",(long)i] fileName:@"image.png" mimeType:@" image/jpeg"];

 

            i++;

        }

 

    } progress:^(NSProgress * _Nonnull uploadProgress) {

 

        progress(uploadProgress.completedUnitCount / uploadProgress.totalUnitCount);

 

    } success:^(NSURLSessionDataTask * _Nonnull task, NSDictionary *  _Nullable responseObject) {

 

        successBlock(responseObject);

 

    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

 

        failureBlock(error);

 

    }];

}

3---->视频上传实现
.h

/**

 *  视频上传

 *

 *  @param operations   上传视频预留参数---视具体情况而定 可移除

 *  @param videoPath    上传视频的本地沙河路径

 *  @param urlString     上传的url

 *  @param successBlock 成功的回调

 *  @param failureBlock 失败的回调

 *  @param progress     上传的进度

 */

+(void)uploadVideoWithOperaitons:(NSDictionary *)operations withVideoPath:(NSString *)videoPath withUrlString:(NSString *)urlString withSuccessBlock:(requestSuccess)successBlock withFailureBlock:(requestFailure)failureBlock withUploadProgress:(uploadProgress)progress;

.m

/**

 *  视频上传

 *

 *  @param operations   上传视频预留参数---视具体情况而定 可移除

 *  @param videoPath    上传视频的本地沙河路径

 *  @param urlString     上传的url

 *  @param successBlock 成功的回调

 *  @param failureBlock 失败的回调

 *  @param progress     上传的进度

 */

 

+(void)uploadVideoWithOperaitons:(NSDictionary *)operations withVideoPath:(NSString *)videoPath withUrlString:(NSString *)urlString withSuccessBlock:(requestSuccess)successBlock withFailureBlock:(requestFailure)failureBlock withUploadProgress:(uploadProgress)progress

{

 

 

    /**获得视频资源*/

 

    AVURLAsset * avAsset = [AVURLAsset assetWithURL:[NSURL URLWithString:videoPath]];

 

    /**压缩*/

 

//    NSString *const AVAssetExportPreset640x480;

//    NSString *const AVAssetExportPreset960x540;

//    NSString *const AVAssetExportPreset1280x720;

//    NSString *const AVAssetExportPreset1920x1080;

//    NSString *const AVAssetExportPreset3840x2160;

 

    AVAssetExportSession  *  avAssetExport = [[AVAssetExportSession alloc] initWithAsset:avAsset presetName:AVAssetExportPreset640x480];

 

    /**创建日期格式化器*/

 

    NSDateFormatter * formatter = [[NSDateFormatter alloc] init];

 

    [formatter setDateFormat:@"yyyy-MM-dd-HH:mm:ss"];

 

    /**转化后直接写入Library---caches*/

 

    NSString *  videoWritePath = [[NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject] stringByAppendingString:[NSString stringWithFormat:@"/output-%@.mp4",[formatter stringFromDate:[NSDate date]]]];

 

 

    avAssetExport.outputURL = [NSURL URLWithString:videoWritePath];

 

 

    avAssetExport.outputFileType =  AVFileTypeMPEG4;

 

 

    [avAssetExport exportAsynchronouslyWithCompletionHandler:^{

 

 

        switch ([avAssetExport status]) {

 

 

            case AVAssetExportSessionStatusCompleted:

            {

 

 

 

                AFHTTPSessionManager * manager = [AFHTTPSessionManager manager];

 

                [manager POST:urlString parameters:operations constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {

 

                    //获得沙盒中的视频内容

 

                    [formData appendPartWithFileURL:[NSURL fileURLWithPath:videoWritePath] name:@"write you want to writre" fileName:videoWritePath mimeType:@"video/mpeg4" error:nil];

 

                } progress:^(NSProgress * _Nonnull uploadProgress) {

 

                       progress(uploadProgress.completedUnitCount / uploadProgress.totalUnitCount);

 

                } success:^(NSURLSessionDataTask * _Nonnull task, NSDictionary *  _Nullable responseObject) {

 

                    successBlock(responseObject);

 

                } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

 

                    failureBlock(error);

 

                }];

 

                break;

            }

            default:

                break;

        }

 

 

    }];

 

}

4----->文件下载
.h

/**

 *  文件下载

 *

 *  @param operations   文件下载预留参数---视具体情况而定 可移除

 *  @param savePath     下载文件保存路径

 *  @param urlString        请求的url

 *  @param successBlock 下载文件成功的回调

 *  @param failureBlock 下载文件失败的回调

 *  @param progress     下载文件的进度显示

 */

 

+(void)downLoadFileWithOperations:(NSDictionary *)operations withSavaPath:(NSString *)savePath withUrlString:(NSString *)urlString withSuccessBlock:(requestSuccess)successBlock withFailureBlock:(requestFailure)failureBlock withDownLoadProgress:(downloadProgress)progress

.m

/**

 *  文件下载

 *

 *  @param operations   文件下载预留参数---视具体情况而定 可移除

 *  @param savePath     下载文件保存路径

 *  @param urlString        请求的url

 *  @param successBlock 下载文件成功的回调

 *  @param failureBlock 下载文件失败的回调

 *  @param progress     下载文件的进度显示

 */

 

+(void)downLoadFileWithOperations:(NSDictionary *)operations withSavaPath:(NSString *)savePath withUrlString:(NSString *)urlString withSuccessBlock:(requestSuccess)successBlock withFailureBlock:(requestFailure)failureBlock withDownLoadProgress:(downloadProgress)progress

{

 

 

    AFHTTPSessionManager * manager = [AFHTTPSessionManager manager];

 

 

    [manager downloadTaskWithRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:urlString]] progress:^(NSProgress * _Nonnull downloadProgress) {

 

        progress(downloadProgress.completedUnitCount / downloadProgress.totalUnitCount);

 

 

    } destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) {

 

                return  [NSURL URLWithString:savePath];

 

    } completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) {

 

        if (error) {

 

            failureBlock(error);

        }

 

    }];

 

}

5---->取消指定的url请求
.h

/**  *  取消指定的url请求  *  *  @param requestType 该请求的请求类型  *  @param string      该请求的url  */   +(void)cancelHttpRequestWithRequestType:(NSString *)requestType requestUrlString:(NSString *)string;

.m

/**

 *  取消指定的url请求

 *

 *  @param requestType 该请求的请求类型

 *  @param string      该请求的完整url

 */

 

+(void)cancelHttpRequestWithRequestType:(NSString *)requestType requestUrlString:(NSString *)string

{

 

    NSError * error;

 

    /**根据请求的类型 以及 请求的url创建一个NSMutableURLRequest---通过该url去匹配请求队列中是否有该url,如果有的话 那么就取消该请求*/

 

    NSString * urlToPeCanced = [[[[NetWorkManager shareManager].requestSerializer requestWithMethod:requestType URLString:string parameters:nil error:&error] URL] path];

 

 

    for (NSOperation * operation in [NetWorkManager shareManager].operationQueue.operations) {

 

        //如果是请求队列

        if ([operation isKindOfClass:[NSURLSessionTask class]]) {

 

            //请求的类型匹配

            BOOL hasMatchRequestType = [requestType isEqualToString:[[(NSURLSessionTask *)operation currentRequest] HTTPMethod]];

 

            //请求的url匹配

 

            BOOL hasMatchRequestUrlString = [urlToPeCanced isEqualToString:[[[(NSURLSessionTask *)operation currentRequest] URL] path]];

 

            //两项都匹配的话  取消该请求

            if (hasMatchRequestType&&hasMatchRequestUrlString) {

 

                [operation cancel];

 

            }

        }

 

    }

}

参考网址：http://code4app.com/thread-8424-1-1.html