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IOS开发—网络请求之GET/POST异步请求(非代理)

2015-03-19 09:19 120 查看

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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