IOS开发—网络请求之GET/POST异步请求(非代理)
2015-03-19 09:19
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网络请求之GET/POST异步请求(非代理)
异步请求特点:发送同步请求期间,由于请求是在新开辟的线程中执行的,因此可以与应用进行交互。发送异步请求的方法:
+ (void)sendAsynchronousRequest:(NSURLRequest*) request queue:(NSOperationQueue*) queue completionHandler:(void (^)(NSURLResponse* response, NSData* data, NSError* connectionError)) handler NS_***AILABLE(10_7, 5_0);
代码示例:
#import "LXXViewController.h" #define URL_WITH_PARAM @"http://kaiyi.3tichina.com:8001/mall/list.php?page=1&catid=4"; #define URL_WITHOUT_PARAM @"http://kaiyi.3tichina.com:8001/mall/list.php"; #define PARAM @"page=1&catid=4"; @interface LXXViewController () @end @implementationLXXViewController - (void)viewDidLoad { [super viewDidLoad]; [self setRequest]; } - (void)setRequest { //get异步请求(非代理方法) /** NSString *str = URL_WITH_PARAM; NSURL *URL = [NSURL URLWithString:str]; NSMutableURLRequest *request =[NSMutableURLRequest requestWithURL:URL]; NSOperationQueue *queue =[[NSOperationQueue alloc]init]; [NSURLConnectionsendAsynchronousRequest:request queue:queue completionHandler:^(NSURLResponse*response, NSData *data, NSError *connectionError) { if (connectionError) { NSLog(@"Httperror:%@%d",connectionError.localizedDescription,connectionError.code); }else{ NSInteger responseCode =[(NSHTTPURLResponse *)response statusCode]; NSString *responseString =[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; NSLog(@"HttpResponseCode:%d", responseCode); NSLog(@"HttpResponseBody%@",responseString); } }]; **/ //post异步请求(非代理方法) NSString *str = URL_WITHOUT_PARAM; NSURL *URL = [NSURL URLWithString:str]; NSMutableURLRequest *request = [[NSMutableURLRequest alloc]initWithURL:URL]; [request setHTTPMethod:@"POST"]; NSString *param = PARAM; NSData *data = [param dataUsingEncoding:NSUTF8StringEncoding]; //设置请求体 [request setHTTPBody:data]; NSOperationQueue *queue = [[NSOperationQueue alloc]init]; [NSURLConnection sendAsynchronousRequest:request queue:queue completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) { if (connectionError) { NSLog(@"Httperror:%@%d", connectionError.localizedDescription,connectionError.code); }else{ NSInteger responseCode = [(NSHTTPURLResponse *)response statusCode]; NSString *responseString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; NSLog(@"HttpResponseCode:%d", responseCode); NSLog(@"HttpResponseBody%@",responseString); } }]; } @end
打印结果展示:
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