AFNetworking 3.0

小小感言
本来是想写博客来着，朋友说的排版更好些，于是就来试试。
总想着把自己开发中遇到的技术点、问题还有大大小小的坑都总结出来，但就是一直没有时间写，或者可能是自己没有养成写的好习惯并坚持下去吧，平常也就是在备忘录、文档里那么随便一记，以后得好好改进了。
这篇文章我就总结一下自己网络请求和上传数据的时候用到的afn3.0
AFNetworking 介绍
AFNetworking 1.0是建立在NSURLConnection的基础API上的，AFNetworking 2.0开始使用NSURLConnection的基础API ，以及较新基于NSURLSession的API的选项。 AFNetworking 3.0现已完全基于NSURLSession的API，这降低了维护的负担，同时支持苹果增强关于NSURLSession提供的任何额外功能。由于Xcode 7中，NSURLConnection的API已经正式被苹果弃用。虽然该API将继续运行，但将没有新功能将被添加，并且苹果已经通知所有基于网络的功能，以充分使NSURLSession向前发展。
AFNetworking 3.0正式支持的iOS 7， Mac OS X的10.9， watchOS 2 ， tvOS 9 和Xcode 7。
在AFNetworking3.0中下面这些类已被废弃：

AFURLConnectionOperation
AFHTTPRequestOperation
AFHTTPRequestOperationManager

另外这些类包含基于NSURLConnection的API的内部实现，他们已经被使用NSURLSession重构：

UIImageView+AFNetworking
UIWebView+AFNetworking
UIButton+AFNetworking

Post请求

AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    manager.requestSerializer.timeoutInterval= 20;
    manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"text/plain",@"text/json",@"application/json",@"text/javascript",@"text/html", @"application/javascript", @"text/js", nil];
    AFSecurityPolicy *securityPolicy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeNone];
    securityPolicy.allowInvalidCertificates = YES;
    manager.securityPolicy = securityPolicy;
[manager POST:urlStr parameters:dic success:^(NSURLSessionTask *task, id responseObject) {
     NSLog(@"请求成功");
    } failure:^(NSURLSessionTask *operation, NSError *error) {
        NSLog(@"%@ error" , error);
    }];

Get请求

因为项目里用到的都是post请求，get请求我就简单的附上

AFHTTPSessionManager *manager = [AFHTTPSessionManager manager]; 
[manager GET:URL parameters:nil progress:^(NSProgress * _Nonnull downloadProgress) { 
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {

      NSLog(@"请求成功");
}
failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
      NSLog(@"%@",error); 
}];

上传图片

-(void)PostUploadImage:(NSMutableDictionary*)dic Url:(NSString *)url
{
    UIImage *image = [dic valueForKey:@"pic"];//图片以键值对的形式存为了一个字典
    NSData *data =UIImageJPEGRepresentation(image , 0.5);
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:20];
    [request setHTTPMethod:@"POST"];    
    [request setHTTPBody:data];
    NSURLSession *session = [NSURLSession sharedSession];
    NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
        if (error) {
            NSLog(@"%@error" , error);
        }else{
            NSString *str = [[ NSString alloc]initWithData:data encoding:NSUTF8StringEncoding];
            NSDictionary *dic = [ NSDictionary dictionary];
            dic = [self dictionaryWithJsonString:str];
            self.Block(dic);//返回数据
        }
    }];
    [dataTask resume];
}
-(NSDictionary *)dictionaryWithJsonString:(NSString *)jsonString {
if (jsonString == nil) {
        return nil;
    }
NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
    NSError *err;
    NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData
                                                        options:NSJSONReadingMutableContainers
                                                          error:&err];
if(err) {
        NSLog(@"json解析失败：%@",err);
        return nil;
    }
    return dic;
}

上传多张图片

-(void)POSTuploadImages:(NSArray*)imageArray url:(NSString*)url
{
    NSError* error = NULL;
    NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:url parameters:nil constructingBodyWithBlock:^(id formData) {
        for (int i = 0; i

 
 上传录音文件 
 -(void)POSTuploadSound:(NSMutableDictionary*)dic url:(NSString*)url
{
    
    NSData *data= [dic valueForKey:@"Sound"];
    
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:20];
    [request setHTTPMethod:@"POST"];
    
    [request setHTTPBody:data];
    
    NSURLSession *session = [NSURLSession sharedSession];
    NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
        if (error) {
            NSLog(@"%@error" , error);
        }else{
            NSString *str = [[ NSString alloc]initWithData:data encoding:NSUTF8StringEncoding];
            NSDictionary *dic = [ NSDictionary dictionary];
            dic = [self dictionaryWithJsonString:str];
            self.Block(dic);
        }
    }];
    [dataTask resume];   
}
 
 下载 
 -(void)downLoadUrl:(NSString *)url{ 
//1.创建管理者对象 
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager]; 
//2.请求的URL地址 
NSURL *url = [NSURL URLWithString:url]; 
//3.创建请求对象 
NSURLRequest *request = [NSURLRequest requestWithURL:url]; 
//下载任务 
NSURLSessionDownloadTask *task = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) { 
//打印下下载进度 
NSLog(@"%lf",1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount);
 } 
destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) { 
//下载地址 
     NSLog(@"默认下载地址:%@",targetPath); 
//设置下载路径，通过沙盒获取缓存地址，最后返回NSURL对象 NSString *filePath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)lastObject]; 
return [NSURL URLWithString:filePath];
 } 
completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) { 
//下载完成调用的方法 
NSLog(@"下载完成"); 
NSLog(@"%@---------------%@",response,filePath); }]; 
//开始启动任务
 [task resume];
}
 
 网络监听 
 -(BOOL)isNetWorkReachable{
    AFNetworkReachabilityManager *afNetworkReachabilityManager = [AFNetworkReachabilityManager sharedManager];
    [afNetworkReachabilityManager startMonitoring];  //开启网络监视器；
    
    [afNetworkReachabilityManager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
        
        switch (status) {
            case AFNetworkReachabilityStatusNotReachable:{
                MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.window animated:YES];
                
                // 设置图片
                hud.labelText = @"无网络 ，请检查网络连接";
                // 再设置模式
                hud.mode = MBProgressHUDModeCustomView;
                hud.center = self.window.center;
                // 隐藏时候从父控件中移除
                hud.removeFromSuperViewOnHide = YES;
                
                // 2秒之后再消失
                [hud hide:YES afterDelay:2];
                break;
            }
            case AFNetworkReachabilityStatusReachableViaWiFi:{
            NSLog(@"WiFi" );
                break;
            }
                
            case AFNetworkReachabilityStatusReachableViaWWAN:{
            NSLog(@"数据网络" );
                break;
            }
            case AFNetworkReachabilityStatusUnknown:{
            NSLog(@"未知网络" );
             break;
            }  
            default:
                break;
        }
        
    }];
    return [AFNetworkReachabilityManager sharedManager].isReachable;
}

AFNetworking 3.0

Post请求

Get请求

上传图片

上传多张图片

上传录音文件

下载

网络监听

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