NSURLConnection网络处理和NSURLSession网络处理
1 #import "ViewController.h" 2 3 @interface ViewController ()<NSURLConnectionDataDelegate> 4 @property (nonatomic,strong) NSMutableData *receiveData; 5 @end 6 7 @implementation ViewController 8 //getter方法 9 -(NSMutableData *)receiveData 10 { 11 if (_receiveData == nil) { 12 _receiveData = [NSMutableData data]; 13 } 14 return _receiveData; 15 } 16 - (void)viewDidLoad { 17 [super viewDidLoad]; 18 // //创建URL对象 19 // NSURL *url = [NSURL URLWithString:@"http://www.baidu.com/s?wd=wtb"]; 20 // NSLog(@"%@",url); 21 // //协议 22 // NSLog(@"scheme:%@",url.scheme); 23 // //域名 24 // NSLog(@"HOST:%@",url.host); 25 // //Query查询语句,是问号之后的语句 26 // NSLog(@"query:%@",url.query); 27 // //Path路径 28 // NSLog(@"path:%@",url.path); 29 // 30 // //创建 31 // NSURLRequest *request = [NSURLRequest requestWithURL:url]; 32 //使用网络链接类NSURLConnection发送网络请求 33 34 //同步的网络请求 35 // NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; 36 // NSLog(@"%@",[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]); 37 // 38 // NSURLRequest *request1 = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:30]; 39 40 //创建url对象 41 NSURL *url2 = [NSURL URLWithString:@"http://ipad-bjwb.bjd.com.cn/DigitalPublication/publish/Handler/APINewsList.ashx?date=20151101&startRecord=1&len=5&udid=1234567890&terminalType=Iphone&cid=213"]; 42 //创建NSURLRequest对象 43 NSURLRequest *request2 = [NSURLRequest requestWithURL:url2]; 44 //使用NSURLConnection网络连接器发送异步代理请求 45 // [NSURLConnection connectionWithRequest:request2 delegate:self]; 46 47 //异步Block请求,使用Block的时候,代理不起作用,二者只能存在其一,但是session可以,session只有异步,没有同步 48 [NSURLConnection sendAsynchronousRequest:request2 queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse * _Nullable response, NSData * _Nullable data, NSError * _Nullable connectionError) { 49 NSString *str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; 50 NSLog(@"%@",str); 51 }]; 52 53 54 } 55 //开始发送请求 56 -(NSURLRequest *)connection:(NSURLConnection *)connection willSendRequest:(NSURLRequest *)request redirectResponse:(NSURLResponse *)response 57 { 58 return request; 59 } 60 //接收到服务器响应Response 61 -(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response 62 { 63 NSLog(@"接受的响应:%@",response); 64 //HTTPResponse 65 NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response; 66 long long length = [httpResponse expectedContentLength]; 67 NSLog(@"%lld",length); 68 } 69 //接收到data 70 -(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data 71 { 72 [self.receiveData appendData:data]; 73 NSLog(@"%ld",data.length); 74 } 75 //接收数据完成 76 -(void)connectionDidFinishLoading:(NSURLConnection *)connection 77 { 78 NSLog(@"接收完成"); 79 NSString *str = [[NSString alloc] initWithData:self.receiveData encoding:NSUTF8StringEncoding]; 80 NSLog(@"%@",str); 81 } 82 83 //请求出错 84 -(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error 85 86 { 87 NSLog(@"请求出错"); 88 89 } 90 - (void)didReceiveMemoryWarning { 91 [super didReceiveMemoryWarning]; 92 // Dispose of any resources that can be recreated. 93 } 94 95 @end
2.NSURLSession网络处理,都有的是代理和block ,session以后把同步删了，想同步用过期的NSURLSesssion
1 #import "ViewController.h" 2 3 @interface ViewController ()<NSURLSessionDataDelegate> 4 5 @end 6 7 @implementation ViewController 8 9 - (void)viewDidLoad { 10 [super viewDidLoad]; 11 //由于浏览器不支持中文,所以要进行汉字转码 12 NSString *str = @"http://www.baidu.com/s?wd=滑板鞋"; 13 NSString *result = [str stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet characterSetWithCharactersInString:str]]; 14 NSURL *url = [NSURL URLWithString:result]; 15 16 //创建request 17 NSURLRequest *request = [[NSURLRequest alloc] initWithURL:url]; 18 // //异步block请求 19 // [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse * _Nullable response, NSData * _Nullable data, NSError * _Nullable connectionError) { 20 // NSLog(@"%@",data); 21 // NSLog(@"%@",connectionError); 22 // }]; 23 24 //创建数据请求任务 25 // NSURLSessionDataTask *dataTask = [[NSURLSession sharedSession] dataTaskWithURL:url completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) { 26 // NSLog(@"%@",error); 27 // }]; 28 // //恢复请求任务 29 // [dataTask resume]; 30 31 //创建一个POST请求 32 NSURL *url2= [NSURL URLWithString:@"http://ipad-bjwb.bjd.com.cn/DigitalPublication/publish/Handler/APINewsList.ashx"]; 33 //创建请求request 34 NSMutableURLRequest *mRequest = [NSMutableURLRequest requestWithURL:url2]; 35 //设置请求方式为POST,添加body体 36 mRequest.HTTPMethod = @"POST"; 37 mRequest.HTTPBody = [@"date=20151101&startRecord=1&len=5&udid=1234567890&terminalType=Iphone&cid=213" dataUsingEncoding:NSUTF8StringEncoding]; 38 // 39 // NSURLSessionDataTask *postDataTask = [[NSURLSession sharedSession] dataTaskWithRequest:mRequest completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) { 40 // NSString *str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; 41 // NSLog(@"%@",str); 42 // }]; 43 // [postDataTask resume]; 44 45 46 47 //使用NSURLSessionDataDelegate 48 NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration] delegate:self delegateQueue:[NSOperationQueue mainQueue]]; 49 // //创建数据请求任务 50 51 //1.block 52 // NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:mRequest completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) { 53 // NSLog(@"%@",data); 54 // }]; 55 // // 56 // [dataTask resume]; 57 58 //2.代理 59 NSURLSessionDataTask *dataTask =[session dataTaskWithRequest:mRequest]; 60 [dataTask resume]; 61 62 } 63 //接收服务器响应 64 -(void)URLSession:(NSURLSession *)session dataTask:(NSURLSessionDataTask *)dataTask didReceiveResponse:(NSURLResponse *)response completionHandler:(void (^)(NSURLSessionResponseDisposition))completionHandler 65 { 66 NSLog(@"接收到服务器响应"); 67 //允许服务器继续发送数据 68 completionHandler(NSURLSessionResponseAllow); 69 } 70 //接收到数据 71 -(void)URLSession:(NSURLSession *)session dataTask:(NSURLSessionDataTask *)dataTask didReceiveData:(NSData *)data 72 { 73 NSLog(@"%ld",data.length); 74 } 75 //接收数据完成 76 -(void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didCompleteWithError:(NSError *)error 77 78 { 79 NSLog(@"接收数据完成"); 80 81 } 82 83 - (void)didReceiveMemoryWarning { 84 [super didReceiveMemoryWarning]; 85 // Dispose of any resources that can be recreated. 86 }
