原生session的GET请求
//入参拼接（？衔接），参用&分割
NSString *urlstring=@"http://121.43.59.5:8012/GetToken.aspx?username=123";
/*如果URL网址里有中文，要先转成utf8编码（如百度天气接口）
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) {
//获取的内容是字符串
NSString *str=[[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding];
NSLog(@"%@",str);
}];
[dataTask resume];
原生session的POST请求
//1.创建会话对象
NSURLSession *session = [NSURLSession sharedSession];
//2.根据会话对象创建task
NSURL *url = [NSURL URLWithString:@"http://121.43.59.5:8011/httptest.aspx"];
//3.创建可变的请求对象
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
//4.修改请求方法为POST
request.HTTPMethod = @"POST";
[request setValue:@"application/json;encoding=utf-8" forHTTPHeaderField:@"Content-Type"];
//5.设置请求体
NSString *prame = [NSString stringWithFormat:@"test=123"];
request.HTTPBody = [prame dataUsingEncoding:NSUTF8StringEncoding];
//6.根据会话对象创建一个Task(发送请求）
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error){
//8.解析数据
//根据后端数据解析
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(), ^{
网络请求自动开启在子线程，UI刷新的代码需要回到主线程操作
});
*/
}];
//7.执行任务
[dataTask resume];
#pragma mark NSURLSessionDataDelegate
//如果发送的请求是https的,那么才会调用该方法,(需要遵循代理)
//challenge 质询,挑战
//NSURLAuthenticationMethodServerTrust
-(void)URLSession:(NSURLSession *)session didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition, NSURLCredential * _Nullable))completionHandler
{
//如果不是服务器证书直接返回
if(![challenge.protectionSpace.authenticationMethod isEqualToString:@"NSURLAuthenticationMethodServerTrust"])
{
return;
}
NSLog(@"%@",challenge.protectionSpace);
//NSURLSessionAuthChallengeDisposition 如何处理证书
/*
NSURLSessionAuthChallengeUseCredential = 0, 使用该证书 安装该证书
NSURLSessionAuthChallengePerformDefaultHandling = 1, 默认采用的方式,该证书被忽略
NSURLSessionAuthChallengeCancelAuthenticationChallenge = 2, 取消请求,证书忽略
NSURLSessionAuthChallengeRejectProtectionSpace = 3, 拒绝
*/
NSURLCredential *credential = [[NSURLCredential alloc]initWithTrust:challenge.protectionSpace.serverTrust];
//NSURLCredential 授权信息
completionHandler(NSURLSessionAuthChallengeUseCredential,credential);
}
AFN的GET网络请求如下:
NSString *urlstring=@"http://120.25.226.186:32812/login";
NSDictionary *param=@{@"username": @"520it",
@"pwd":@"520it"};
//1、创建管理者（AFHTTPSessionManager内部基于NSURLSession实现）
AFHTTPSessionManager *manger=[AFHTTPSessionManager manager];
/*序列化处理
设置AFN采用什么样的方式来解析服务器返回的数据， 默认采用json方式解析数据
//如果返回的是XML，那么告诉AFN，响应的时候使用XML的方式解析
manager.responseSerializer = [AFXMLParserResponseSerializer serializer];
//如果返回的就是二进制数据，那么采用默认二进制的方式来解析数据
//manager.responseSerializer = [AFHTTPResponseSerializer serializer];
//采用JSON的方式来解析数据
//manager.responseSerializer = [AFJSONResponseSerializer serializer];
*/
manger.responseSerializer=[AFHTTPResponseSerializer serializer];
/*
requestSerializer:请求数据格式，默认是二进制的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(@"请求失败");
}];
AFN POST请求
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(@"请求失败");
}];
//AFN对https的处理
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
//更改解析方式(默认为json解析，此次请求为网址源码)
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
//设置对证书的处理方式
//接受无效证书，默认为NO
manager.securityPolicy.allowInvalidCertificates = YES;
//对域名的检测，默认为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.jianshu.com/p/28cc386fd460
原文更加详细,总结的更加完整,我仅仅使用了上述几种请求,复制此文里留用....
