1 /** 
  2  要使用常规的AFN网络访问 
  3   
  4  1. AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; 
  5   
  6     所有的网络请求,均有manager发起 
  7   
  8  2. 需要注意的是,默认提交请求的数据是二进制的,返回格式是JSON 
  9   
 10     1> 如果提交数据是JSON的,需要将请求格式设置为AFJSONRequestSerializer 
 11     2> 如果返回格式不是JSON的, 
 12   
 13  3. 请求格式 
 14   
 15      AFHTTPRequestSerializer            二进制格式 
 16      AFJSONRequestSerializer            JSON 
 17      AFPropertyListRequestSerializer    PList(是一种特殊的XML,解析起来相对容易) 
 18   
 19  4. 返回格式 
 20   
 21      AFHTTPResponseSerializer           二进制格式 
 22      AFJSONResponseSerializer           JSON 
 23      AFXMLParserResponseSerializer      XML,只能返回XMLParser,还需要自己通过代理方法解析 
 24      AFXMLDocumentResponseSerializer (Mac OS X) 
 25      AFPropertyListResponseSerializer   PList 
 26      AFImageResponseSerializer          Image 
 27      AFCompoundResponseSerializer       组合 
 28  */  
 29   
 30 - (void)viewDidLoad  
 31 {  
 32     [super viewDidLoad];  
 33       
 34     [self reach];  
 35 }  
 36   
 37 #pragma mark - 演练  
 38 #pragma mark - 检测网络连接  
 39 - (void)reach  
 40 {  
 41     /** 
 42      AFNetworkReachabilityStatusUnknown          = -1,  // 未知 
 43      AFNetworkReachabilityStatusNotReachable     = 0,   // 无连接 
 44      AFNetworkReachabilityStatusReachableViaWWAN = 1,   // 3G 花钱 
 45      AFNetworkReachabilityStatusReachableViaWiFi = 2,   // 局域网络,不花钱 
 46      */  
 47     // 如果要检测网络状态的变化,必须用检测管理器的单例的startMonitoring  
 48     [[AFNetworkReachabilityManager sharedManager] startMonitoring];  
 49       
 50     // 检测网络连接的单例,网络变化时的回调方法  
 51     [[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {  
 52         NSLog(@"%d", status);  
 53     }];  
 54 }  
 55   
 56 #pragma mark - Session 下载  
 57 - (void)sessionDownload  
 58 {  
 59     NSURLSessionConfiguration *config = [NSURLSessionConfiguration defaultSessionConfiguration];  
 60     AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:config];  
 61       
 62     NSString *urlString = @"http://localhost/itcast/videos/01.C语言-语法预览.mp4";  
 63     urlString = [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];  
 64       
 65     NSURL *url = [NSURL URLWithString:urlString];  
 66     NSURLRequest *request = [NSURLRequest requestWithURL:url];  
 67       
 68     NSURLSessionDownloadTask *task = [manager downloadTaskWithRequest:request progress:nil destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {  
 69         // 指定下载文件保存的路径  
 70 //        NSLog(@"%@ %@", targetPath, response.suggestedFilename);  
 71         // 将下载文件保存在缓存路径中  
 72         NSString *cacheDir = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)[0];  
 73         NSString *path = [cacheDir stringByAppendingPathComponent:response.suggestedFilename];  
 74           
 75         // URLWithString返回的是网络的URL,如果使用本地URL,需要注意  
 76         NSURL *fileURL1 = [NSURL URLWithString:path];  
 77         NSURL *fileURL = [NSURL fileURLWithPath:path];  
 78           
 79         NSLog(@"== %@ |||| %@", fileURL1, fileURL);  
 80           
 81         return fileURL;  
 82     } completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {  
 83         NSLog(@"%@ %@", filePath, error);  
 84     }];  
 85       
 86     [task resume];  
 87 }  
 88   
 89 #pragma mark - POST JSON  
 90 - (void)postJSON  
 91 {  
 92     AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];  
 93       
 94     NSDictionary *dict = @{@"name": @"zhangsan"};  
 95     NSDictionary *dict1 = @{@"name": @"wangwu"};  
 96     NSArray *array = @[dict, dict1];  
 97     // 设置请求格式  
 98     manager.requestSerializer = [AFJSONRequestSerializer serializer];  
 99     // 设置返回格式  
100     manager.responseSerializer = [AFHTTPResponseSerializer serializer];  
101       
102     [manager POST:@"http://localhost/postjson.php" parameters:array success:^(AFHTTPRequestOperation *operation, id responseObject) {  
103         NSString *result = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];  
104           
105         NSLog(@"%@", result);  
106     } failure:^(AFHTTPRequestOperation *operation, NSError *error) {  
107           
108     }];  
109       
110 }  
111   
112 #pragma mark - 随机文件名上传  
113 - (void)postUpload1  
114 {  
115     // 本地上传给服务器时,没有确定的URL,不好用MD5的方式处理  
116     AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];  
117     manager.responseSerializer = [AFHTTPResponseSerializer serializer];  
118       
119     [manager POST:@"http://localhost/demo/upload.php" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {  
120           
121         NSURL *fileURL = [[NSBundle mainBundle] URLForResource:@"头像1.png" withExtension:nil];  
122           
123         // 要上传保存在服务器中的名称  
124         // 使用时间来作为文件名 2014-04-30 14:20:57.png  
125         // 让不同的用户信息,保存在不同目录中  
126         NSDateFormatter *formatter = [[NSDateFormatter alloc] init];  
127         // 设置日期格式  
128         formatter.dateFormat = @"yyyy-MM-dd HH:mm:ss";  
129         NSString *fileName = [formatter stringFromDate:[NSDate date]];  
130           
131         [formData appendPartWithFileURL:fileURL name:@"uploadFile" fileName:fileName mimeType:@"image/png" error:NULL];  
132           
133     } success:^(AFHTTPRequestOperation *operation, id responseObject) {  
134         NSLog(@"OK");  
135     } failure:^(AFHTTPRequestOperation *operation, NSError *error) {  
136         NSLog(@"error");  
137     }];  
138 }  
139   
140 #pragma mark - POST上传  
141 - (void)postUpload  
142 {  
143     AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];  
144     // AFHTTPResponseSerializer就是正常的HTTP请求响应结果:NSData  
145     // 当请求的返回数据不是JSON,XML,PList,UIImage之外,使用AFHTTPResponseSerializer  
146     // 例如返回一个html,text...  
147     //  
148     // 实际上就是AFN没有对响应数据做任何处理的情况  
149     manager.responseSerializer = [AFHTTPResponseSerializer serializer];  
150       
151     // formData是遵守了AFMultipartFormData的对象  
152     [manager POST:@"http://localhost/demo/upload.php" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {  
153           
154         // 将本地的文件上传至服务器  
155         NSURL *fileURL = [[NSBundle mainBundle] URLForResource:@"头像1.png" withExtension:nil];  
156           
157         [formData appendPartWithFileURL:fileURL name:@"uploadFile" error:NULL];  
158     } success:^(AFHTTPRequestOperation *operation, id responseObject) {  
159         NSString *result = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];  
160           
161         NSLog(@"完成 %@", result);  
162     } failure:^(AFHTTPRequestOperation *operation, NSError *error) {  
163         NSLog(@"错误 %@", error.localizedDescription);  
164     }];  
165 }  
166   
167 #pragma mark - JSON  
168 - (void)XMLData  
169 {  
170     AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];  
171       
172     // 返回的数据格式是XML  
173     manager.responseSerializer = [AFXMLParserResponseSerializer serializer];  
174       
175     NSDictionary *dict = @{@"format": @"xml"};  
176       
177     // 网络访问是异步的,回调是主线程的,因此程序员不用管在主线程更新UI的事情  
178     [manager GET:@"http://localhost/videos.php" parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) {  
179           
180         // 如果结果是XML,同样需要使用6个代理方法解析,或者使用第三方库  
181         // 第三方库第三方框架,效率低,内存泄漏  
182         NSLog(@"%@", responseObject);  
183     } failure:^(AFHTTPRequestOperation *operation, NSError *error) {  
184         NSLog(@"%@", error);  
185     }];  
186 }  
187   
188 #pragma mark - JSON  
189 - (void)JSONData  
190 {  
191     AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];  
192       
193     // 原本需要拼接get访问URL ? & =  
194     NSDictionary *dict = @{@"format": @"json"};  
195       
196     // 网络访问是异步的,回调是主线程的,因此程序员不用管在主线程更新UI的事情  
197     [manager GET:@"http://localhost/videos.php" parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) {  
198         NSLog(@"%@", responseObject);  
199         // 提问:NSURLConnection异步方法回调,是在子线程  
200         // 得到回调之后,通常更新UI,是在主线程  
201         NSLog(@"%@", [NSThread currentThread]);  
202     } failure:^(AFHTTPRequestOperation *operation, NSError *error) {  
203         NSLog(@"%@", error);  
204     }];  
205 }  
206   
207 #pragma mark - POST登录  
208 - (void)postLogin  
209 {  
210     AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];  
211       
212     // 原本需要拼接get访问URL ? & =  
213     NSDictionary *dict = @{@"username": @"wangwu", @"password" : @"wang"};  
214       
215     // 网络访问是异步的,回调是主线程的,因此程序员不用管在主线程更新UI的事情  
216     [manager POST:@"http://localhost/login.php" parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) {  
217         NSLog(@"%@", responseObject);  
218         // 提问:NSURLConnection异步方法回调,是在子线程  
219         // 得到回调之后,通常更新UI,是在主线程  
220         NSLog(@"%@", [NSThread currentThread]);  
221     } failure:^(AFHTTPRequestOperation *operation, NSError *error) {  
222         NSLog(@"%@", error);  
223     }];  
224 }  
225   
226 #pragma mark - GET登录  
227 - (void)getLogin  
228 {  
229     AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];  
230       
231     // 原本需要拼接get访问URL ? & =  
232     NSDictionary *dict = @{@"username": @"wangwu", @"password" : @"wang"};  
233       
234     // 网络访问是异步的,回调是主线程的,因此程序员不用管在主线程更新UI的事情  
235     [manager GET:@"http://localhost/login.php" parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) {  
236         NSLog(@"%@", responseObject);  
237         // 提问:NSURLConnection异步方法回调,是在子线程  
238         // 得到回调之后,通常更新UI,是在主线程  
239         NSLog(@"%@", [NSThread currentThread]);  
240     } failure:^(AFHTTPRequestOperation *operation, NSError *error) {  
241         NSLog(@"%@", error);  
242     }];  
243 }  
244