原生session的GET請求
//入?yún)⑵唇樱ǎ裤暯樱?，參?amp;分割
NSString *urlstring=@"http://121.43.59.5:8012/GetToken.aspx?username=123";
/*如果URL網(wǎng)址里有中文，要先轉(zhuǎn)成utf8編碼（如百度天氣接口）
NSString *urlstring=[NSString stringWithFormat:@"http://api.map.baidu.com/telematics/v3/weather?location=北京&output=json&ak=%@&mcode=%@",ak,mcode];
NSString *urlstr=[urlstring stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];
*/
NSURL *url = [NSURL URLWithString:urlstring];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
NSURLSessionDataTask *dataTask = [[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
//獲取的內(nèi)容是字符串
NSString *str=[[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding];
NSLog(@"%@",str);
}];
[dataTask resume];
原生session的POST請求
//1.創(chuàng)建會話對象
NSURLSession *session = [NSURLSession sharedSession];
//2.根據(jù)會話對象創(chuàng)建task
NSURL *url = [NSURL URLWithString:@"http://121.43.59.5:8011/httptest.aspx"];
//3.創(chuàng)建可變的請求對象
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
//4.修改請求方法為POST
request.HTTPMethod = @"POST";
[request setValue:@"application/json;encoding=utf-8" forHTTPHeaderField:@"Content-Type"];
//5.設(shè)置請求體
NSString *prame = [NSString stringWithFormat:@"test=123"];
request.HTTPBody = [prame dataUsingEncoding:NSUTF8StringEncoding];
//6.根據(jù)會話對象創(chuàng)建一個Task(發(fā)送請求）
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error){
//8.解析數(shù)據(jù)
//根據(jù)后端數(shù)據(jù)解析
NSString *str=[[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding];
//NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil];
NSLog(@"%@",str);
/* dispatch_async(dispatch_get_main_queue(), ^{
網(wǎng)絡(luò)請求自動開啟在子線程，UI刷新的代碼需要回到主線程操作
});
*/
}];
//7.執(zhí)行任務(wù)
[dataTask resume];
#pragma mark NSURLSessionDataDelegate
//如果發(fā)送的請求是https的,那么才會調(diào)用該方法,(需要遵循代理)
//challenge 質(zhì)詢,挑戰(zhàn)
//NSURLAuthenticationMethodServerTrust
-(void)URLSession:(NSURLSession *)session didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition, NSURLCredential * _Nullable))completionHandler
{
//如果不是服務(wù)器證書直接返回
if(![challenge.protectionSpace.authenticationMethod isEqualToString:@"NSURLAuthenticationMethodServerTrust"])
{
return;
}
NSLog(@"%@",challenge.protectionSpace);
//NSURLSessionAuthChallengeDisposition 如何處理證書
/*
NSURLSessionAuthChallengeUseCredential = 0, 使用該證書 安裝該證書
NSURLSessionAuthChallengePerformDefaultHandling = 1, 默認(rèn)采用的方式,該證書被忽略
NSURLSessionAuthChallengeCancelAuthenticationChallenge = 2, 取消請求,證書忽略
NSURLSessionAuthChallengeRejectProtectionSpace = 3, 拒絕
*/
NSURLCredential *credential = [[NSURLCredential alloc]initWithTrust:challenge.protectionSpace.serverTrust];
//NSURLCredential 授權(quán)信息
completionHandler(NSURLSessionAuthChallengeUseCredential,credential);
}
AFN的GET網(wǎng)絡(luò)請求如下:
NSString *urlstring=@"http://120.25.226.186:32812/login";
NSDictionary *param=@{@"username": @"520it",
@"pwd":@"520it"};
//1、創(chuàng)建管理者（AFHTTPSessionManager內(nèi)部基于NSURLSession實現(xiàn)）
AFHTTPSessionManager *manger=[AFHTTPSessionManager manager];
/*序列化處理
設(shè)置AFN采用什么樣的方式來解析服務(wù)器返回的數(shù)據(jù)， 默認(rèn)采用json方式解析數(shù)據(jù)
//如果返回的是XML，那么告訴AFN，響應(yīng)的時候使用XML的方式解析
manager.responseSerializer = [AFXMLParserResponseSerializer serializer];
//如果返回的就是二進(jìn)制數(shù)據(jù)，那么采用默認(rèn)二進(jìn)制的方式來解析數(shù)據(jù)
//manager.responseSerializer = [AFHTTPResponseSerializer serializer];
//采用JSON的方式來解析數(shù)據(jù)
//manager.responseSerializer = [AFJSONResponseSerializer serializer];
*/
manger.responseSerializer=[AFHTTPResponseSerializer serializer];
/*
requestSerializer:請求數(shù)據(jù)格式，默認(rèn)是二進(jìn)制的HTTP
manger.requestSerializer=[AFHTTPRequestSerializer serializer];
manger.requestSerializer=[AFJSONRequestSerializer serializer];
manger.requestSerializer=[AFXMLRequestSerializer serializer];
*/
[manger GET:urlstring parameters:param progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
NSString *str=[[NSString alloc]initWithData:responseObject encoding:NSUTF8StringEncoding];
//NSDictionary *dict=[NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingAllowFragments error:nil];
NSLog(@"%@",str);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSLog(@"請求失敗");
}];
AFN POST請求
NSString *urlstr=@"http://120.25.226.186:32812/login";
NSDictionary *param=@{@"username": @"520it",
@"pwd":@"520it"
};
AFHTTPSessionManager *manger=[AFHTTPSessionManager manager];
manger.responseSerializer=[AFHTTPResponseSerializer serializer];
[manger POST:urlstr parameters:param progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
NSString *str=[[NSString alloc]initWithData:responseObject encoding:NSUTF8StringEncoding];
NSLog(@"%@",str);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSLog(@"請求失敗");
}];
//AFN對https的處理
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
//更改解析方式(默認(rèn)為json解析，此次請求為網(wǎng)址源碼)
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
//設(shè)置對證書的處理方式
//接受無效證書，默認(rèn)為NO
manager.securityPolicy.allowInvalidCertificates = YES;
//對域名的檢測，默認(rèn)為YES
manager.securityPolicy.validatesDomainName = NO;
[manager GET:@"https://kyfw.12306.cn/otn" parameters:nil progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
NSLog(@"success---%@",[[NSString alloc]initWithData:responseObject encoding:NSUTF8StringEncoding]);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSLog(@"error---%@",error);
}];
原文地址:http://www.itdecent.cn/p/28cc386fd460
原文更加詳細(xì),總結(jié)的更加完整,我僅僅使用了上述幾種請求,復(fù)制此文里留用....
