AFNewwork使用方法

1 下载AFNetworking资源包 https://github.com/AFNetworking/AFNetworking。

2 将AFNetWorking，UIKit+AFNetworking文件夹导入项目 

3 添加类库 Security.framework、MobileCoreServices.framework、SystemConfiguration.framework 

4 在.pch中加入  #import "AFNetworking.h",#import"UIImageView+AFNetworking.h"（任意地方都可以使用）

Note:

AFJSONOperation,AFPropertyListOperation, AFXMLOperation用来解析结构化数据。

UIImageView+AFNetworking用来快捷的填充image view

AFHTTPClient用来进行更底层的请求

用自定义的AFHTTPClient子类来访问一个web service。

AFNetworkActivityIndicatiorManager用来给用户做出网络访问的提示。

AFImageRequestOperation用来加载图片。

demo

    //AFNetWorking异步加载图片

    UIImageView *imageView = [[UIImageViewalloc]initWithFrame:CGRectMake(40,80, 40,40)];

    __weak UIImageView *_imageView = imageView;

    [imageView setImageWithURLRequest:[[NSURLRequestalloc] initWithURL:[NSURLURLWithString:@"http://www.worldweatheronline.com/images/wsymbols01_png_64/wsymbol_0001_sunny.png"]]placeholderImage:[UIImageimageNamed:@"1"]success:^(NSURLRequest *request,NSHTTPURLResponse *response, UIImage *image) {

        NSLog(@"获取成功");

        _imageView.image = image;

        [_imageView setNeedsDisplay];

    } failure:^(NSURLRequest *request,NSHTTPURLResponse *response, NSError *error) {

        NSLog(@"获取失败");

    }];

    [self.viewaddSubview:imageView];

    //Get请求（不带参数）

    AFHTTPRequestOperationManager * manager = [AFHTTPRequestOperationManagermanager];

    //一定要写哦

    manager.responseSerializer = [AFHTTPResponseSerializerserializer];

    [manager GET:@"http://1000phone.net:8088/app/taobao/api/get_cateall.php?app_name=igo"parameters:nilsuccess:^(AFHTTPRequestOperation *operation,id responseObject) {

        NSLog(@"Success is %@",responseObject);

    } failure:^(AFHTTPRequestOperation *operation,NSError *error) {

        NSLog(@"error %@",error);

    }];

    //Get请求（带参数）

    // 支持GET URL与参数分开的写法

    AFHTTPRequestOperationManager * manager1 = [AFHTTPRequestOperationManagermanager];

    manager1.responseSerializer = [AFHTTPResponseSerializerserializer];

    NSDictionary * paramaters1 =@{@"username":@"test",@"password":@"123456"};

    [manager1 GET:@"http://119.255.38.178:8089/sns/my/login.php"parameters:paramaters1 success:^(AFHTTPRequestOperation *operation,id responseObject) {

        NSLog(@"responseObject is %@",[[NSStringalloc] initWithData:responseObjectencoding:NSUTF8StringEncoding]);

        

    } failure:^(AFHTTPRequestOperation *operation,NSError *error) {

        NSLog(@"error is %@",error);

    }];

//post

    AFHTTPRequestOperationManager * manager = [AFHTTPRequestOperationManagermanager];

    manager.responseSerializer = [AFHTTPResponseSerializerserializer];

    // POST1(相当于get)

    [manager POST:@"http://119.255.38.178:8089/sns/my/login.php"parameters:@{@"username":@"test",@"password":@"123456"}success:^(AFHTTPRequestOperation *operation,id responseObject) {

        NSLog(@"responseObject is %@",[[NSStringalloc] initWithData:responseObjectencoding:NSUTF8StringEncoding]);

        NSData * data = [NSDatadataWithContentsOfFile:[[NSBundlemainBundle] pathForResource:@"1"ofType:@"png"]];

        // POST2(上传)

    [manager POST:@"http://119.255.38.178:8089/sns/my/upload_headimage.php"parameters:nilconstructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

            [formData appendPartWithFileData:dataname:@"headimage"fileName:@"1.png"mimeType:@"image/png"];

        } success:^(AFHTTPRequestOperation *operation,id responseObject) {

            NSLog(@"POST Image Success!");

        } failure:^(AFHTTPRequestOperation *operation,NSError *error) {

            NSLog(@"POST Image Error!");

        }];

        

    } failure:^(AFHTTPRequestOperation *operation,NSError *error) {

        NSLog(@"error is %@",error);

    }];

//下载

    AFHTTPRequestOperationManager * manager = [AFHTTPRequestOperationManagermanager];

    manager.responseSerializer = [AFHTTPResponseSerializerserializer];

    NSURLRequest * request = [NSURLRequestrequestWithURL:[NSURL URLWithString:@"http://dl_dir.qq.com/qqfile/qq/QQforMac/QQ_V2.4.1.dmg"]];

    AFHTTPRequestOperation * operation = [managerHTTPRequestOperationWithRequest:request success:^(AFHTTPRequestOperation *operation,id responseObject) {

        NSLog(@"下载成功");

    } failure:^(AFHTTPRequestOperation *operation,NSError *error) {

        NSLog(@"下载失败");

    }];

    [operation setDownloadProgressBlock:^(NSUInteger bytesRead,long long totalBytesRead, long long totalBytesExpectedToRead) {

        NSLog(@"%lld %lld %.2f",totalBytesRead,totalBytesExpectedToRead,(CGFloat)totalBytesRead/totalBytesExpectedToRead);

    }];

    [operation start];

//上传

    AFHTTPRequestOperationManager * manager = [AFHTTPRequestOperationManagermanager];

    manager.responseSerializer = [AFHTTPResponseSerializerserializer];

    [manager GET:@"http://119.255.38.178:8089/sns/my/login.php"parameters:@{@"username":@"test",@"password":@"123456"}success:^(AFHTTPRequestOperation *operation,id responseObject)

     {

         NSLog(@"登录成功");

         //必须先登录才能上传头像

         AFHTTPRequestSerializer * serializer = [AFHTTPRequestSerializerserializer];

         NSData * imgData = [NSDatadataWithContentsOfFile:[[NSBundlemainBundle] pathForResource:@"1"ofType:@"png"]];

         NSMutableURLRequest * request = [serializermultipartFormRequestWithMethod:@"POST"URLString:@"http://119.255.38.178:8089/sns/my/upload_headimage.php"parameters:nilconstructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

             [formData appendPartWithFileData:imgDataname:@"headimage"fileName:@"1.png"mimeType:@"image/png"];

         } error:nil];

         operation = [manager HTTPRequestOperationWithRequest:requestsuccess:^(AFHTTPRequestOperation *operation,id responseObject) {

             NSLog(@"上传照片成功");

         } failure:^(AFHTTPRequestOperation *operation,NSError *error) {

             NSLog(@"上传照片失败");

         }];

         [operation setUploadProgressBlock:^(NSUInteger bytesWritten,long long totalBytesWritten, long long totalBytesExpectedToWrite) {

             NSLog(@"%lld %lld %u %.2f",totalBytesWritten,totalBytesExpectedToWrite,bytesWritten,(CGFloat)totalBytesWritten/totalBytesExpectedToWrite);

         }];

         [operation start];

         

     } failure:^(AFHTTPRequestOperation *operation,NSError *error) {

         NSLog(@"登录失败");

     }];

//多个请求

    NSArray * imgArr =@[@"http://img.app.d1cm.com/news/img/201312021616153719.jpg",

                         @"http://img1.xcarimg.com/b63/s2515/m_20110718163332702074.jpg",

                         @"http://img.app.d1cm.com/news/img/201312021610065708.jpg"];

    for (int i = 0; i < imgArr.count; i++) {

        NSURL * url = [NSURLURLWithString:imgArr[i]];

        NSURLRequest *request = [NSURLRequestrequestWithURL:url];

        AFHTTPRequestOperation *op = [[AFHTTPRequestOperationalloc] initWithRequest:request];

        op.responseSerializer = [AFHTTPResponseSerializerserializer];

        [op setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation,id responseObject) {

            NSLog(@"Success %ld", [responseObjectlength]);

        } failure:^(AFHTTPRequestOperation *operation,NSError *error) {

            NSLog(@"Error: %@", error);

        }];

        [[NSOperationQueuemainQueue] addOperation:op];

    }

// 网络状态检测

- (BOOL)isNetWorkReachable

{

    AFNetworkReachabilityManager *afNetworkReachabilityManager = [AFNetworkReachabilityManagersharedManager];

    // 开启网络监视器

    [afNetworkReachabilityManager startMonitoring];

    

    [afNetworkReachabilityManager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {

        

        switch (status) {

            caseAFNetworkReachabilityStatusNotReachable:{

                NSLog(@"网络不通");

                break;

            }

            caseAFNetworkReachabilityStatusReachableViaWiFi:

            {

                NSLog(@"网络通过WIFI连接");

                break;

            }

                

            caseAFNetworkReachabilityStatusReachableViaWWAN:{

                NSLog(@"网络通过wan连接");

                break;

            }

            default:

                break;

        }

        

    }];

    

//断点下载

            // 断点续传

            NSString * path = [NSHomeDirectory()stringByAppendingPathComponent:@"QQ.dmg"];

            NSLog(@"path is %@",path);

            NSMutableURLRequest * request = [NSMutableURLRequestrequestWithURL:[NSURL URLWithString:@"http://dl_dir.qq.com/qqfile/qq/QQforMac/QQ_V2.4.1.dmg"]];

            

            _breakPointOperation = [[AFHTTPRequestOperationalloc] initWithRequest:request];

            _breakPointOperation.outputStream = [NSOutputStreamoutputStreamToFileAtPath:path append:NO];

            [_breakPointOperation setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, longlong totalBytesExpectedToRead) {

                NSLog(@"下载进度 %lld %lld",totalBytesRead,totalBytesExpectedToRead);

            }];

            [_breakPointOperationsetCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation,id responseObject) {

                NSLog(@"下载完成");

            } failure:^(AFHTTPRequestOperation *operation,NSError *error) {

                NSLog(@"下载失败");

            }];

            [_breakPointOperationstart];

    

    return [AFNetworkReachabilityManagersharedManager].isReachable;

}