转：
iOS Objective-C 获取api数据
NSURLSession
直接用session获取
- (void)getDataWithPostSession {
NSURLSession *session = [NSURLSession sharedSession];
NSURL *url = [NSURL URLWithString:@"https://xxxxxx/"];
NSMutableuRLRequest *request = [NSMutableuRLRequest requestWithURL:url];
request.HTTPMethod = @"POST";//方式
request.HTTPBody = [NSJSONSerialization dataWithJSONObject:@{@"query":@{@"key":@"top"}} options:nil error:nil];//请求内容
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
//NSLog(@"%@",response);
NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:data options:nil error:nil];//转为json格式
NSLog(@"%@",dic);
if (error) {
NSLog(@"%@",error);
}
}];
[dataTask resume];
}
AFNetworking
通过第三方库来获取资源
pod安装AFNetworking
#import "AFNetworking.h"
[self AFNetGetDataWithPath:@"https://xxxxxx.com/" andParameters:@{@"query":@{}}];
-(void)AFNetGetDataWithPath:(Nsstring *)path andParameters:(NSDictionary *)dic{
AFHTTPSessionManager* session = [AFHTTPSessionManager manager];//创建会话管理器对象
session.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json", nil];//json类型
session.requestSerializer = [AFJSONRequestSerializer serializer];
[session POST:path parameters:dic headers:@{@"Content-Type":@"application/json"} progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responSEObject) {
NSLog(@"成功了success %@"，responSEObject);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSLog(@"失败了error %@",error);
}];
}
以上都是POST请求，如果是Get对应修改即可，相应的请求参数配置在Parameters中。
附：
获取到的内容多是JSON格式，文本内容；
如果想要转换为model模型，这里可以安装第三方库：YYModel
#import "YYModel.h"
#import "testModel.h"//模型
testModel *model = [testModel yy_modelWithJSON:self.data];
NSLog(@"直接调用model的属性%@",model.name);
#import <uiimageview+webcache.h>