iOS應(yīng)用中發(fā)送HTTP的get請求的方法

2020-02-19 15:50:08

字體：大中小

供稿：網(wǎng)友

iOS應(yīng)用程序中發(fā)送HTTP GET請求和HTTP異步請求的方法是用傳統(tǒng)的Objective-C語言進行編碼的，這些說明被簡單地集成到注釋中，需要它們的朋友可以參考這些注釋哦！

Http get 請求

// 組合一個搜索字符串
??? NSString *urlStr = [NSString stringWithFormat:@"http://www.baidu.com/s?wd=%@", @"php"];
??? // 字符串轉(zhuǎn)化為URL
??? NSURL *url = [NSURL URLWithString:urlStr];
????
//??? NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
//??? [request setURL:url];
//??? [request setHTTPMethod:@"POST"];
//??? [request setTimeoutInterval:60];
//??? [request setHTTPBody:_data];
//??? [request setValue:@"ttt" forHTTPHeaderField:@"cookies"];
???
??? // url轉(zhuǎn)化為一個請求
??? NSURLRequest *request = [NSURLRequest requestWithURL:url];
??? // 狀態(tài)請求
??? NSURLResponse *response;
??? // 鏈接一個請求
??? NSData *resultData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:nil];
??? // 返回數(shù)據(jù)轉(zhuǎn)為字符串
??? NSData *dataString = [[NSString alloc] initWithData:resultData encoding:NSUTF8StringEncoding];
??? NSLog(@"%@", dataString);
// 解析json吧

Http異步請求

- (void)viewDidLoad
{
??? [super viewDidLoad];
??? // Do any additional setup after loading the view.
????
??? _data = [[NSMutableData alloc] init];
????
??? // 組合一個搜索字符串
??? NSString *urlStr = [NSString stringWithFormat:@"http://www.baidu.com/s?wd=%@", @"php"];
??? NSURL *url = [NSURL URLWithString:urlStr];
????
??? NSURLRequest *request = [NSURLRequest requestWithURL:url];
????
??? //發(fā)起請求，定義代理
??? [NSURLConnection connectionWithRequest:request delegate:self];
????
}
?
// 分批返回數(shù)據(jù)
- (void)connection:(NSURLConnection *) connection didReceiveData:(NSData *)data {
??? [_data appendData:data];
??? NSLog(@"%@", _data);
}
?
// 數(shù)據(jù)完全返回完畢
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
??? NSString *dataString =? [[NSString alloc] initWithData:_data encoding:NSUTF8StringEncoding];
??? NSLog(@"%@", dataString);
}