通过NSURLConnection静态方法请求网络

来源：互联网发布：javascript刷新父页面编辑：程序博客网时间：2024/05/21 06:15

在NSURLConnection中提供了两个静态方法请求网络，

sendAsynchronousRequest //异步请求

sendSynchronousRequest //同步请求

例子：

Get 同步请求

//通过 NSURLConnection 静态方法请求网络 同步-(void)testSyncGet{    NSString *strUrl = @"http://c.51wnl.com/api4.3.2/getstar.ashx?starname=aries";    NSURL *url = [NSURL URLWithString:[strUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];        NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData  timeoutInterval:5];    NSURLResponse *response;    NSError *error;    NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];    if (data) {        NSLog(@"result:%@",[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]);    }else{            NSLog(@"error:%@",error.localizedDescription);    }}

Get 异步请求

//通过 NSURLConnection 静态方法请求网络 异步-(void)testASyncGet{        NSString *strUrl = @"http://c.51wnl.com/api4.3.2/getstar.ashx?starname=aries";    NSURL *url = [NSURL URLWithString:[strUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];        NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData  timeoutInterval:5];    [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse * _Nullable response, NSData * _Nullable data, NSError * _Nullable connectionError) {                if (connectionError == nil && [data length] > 0) {            NSLog(@"result:%@",[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]);        }else{            NSLog(@"error:%@",connectionError.localizedDescription);        }    }];}

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