afnetworking3.0小试

摘要：自从苹果的使用安全请求，废弃NSUrlconnection,但是我们还用http请求，可以继续使用afnetworking1.0至2.的。我想边记录下使用3.0的感想。

1. 在上次iOS项目创建步骤中，编辑Podfile文件，添加

pod 'AFNetworking', '~> 3.0'pod install

1. 在文档中new file ->CallApi.h,CallApi.m

+(void)afJsonRequestDemo:(NSString *)req {    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];    NSString *url = [NSString stringWithFormat:@"%@/req",SERVERIP_JSON];    //fuck 这句没写直接失败！目前是http请求建议用二进制    manager.responseSerializer = [AFHTTPResponseSerializer serializer];    [manager POST:url parameters:nil progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {        NSDictionary *obj = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers error:nil];        NSLog(@"afJsonRequest3.0请求成功");        if (obj) {            FYTDResGoodsList *resGoodsList = [[FYTDResGoodsList alloc] initWithDataDic:obj];        }    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {        NSLog(@"afJsonRequest3.0请求失败");    }];}

• 此处我们点击AFHTTPSessionManager,进入查看.h文档
  AFHTTPSessionManager是AFURLSessionManager的子类

• responseSerializer ：By default, this property is set to an instance of AFJSONResponseSerializer.（默认是AFJSONResponseSerializer）

• Any request or response serializer dealing with HTTP is encouraged to subclass AFHTTPResponseSerializer in order to ensure consistent default behavior.（任何http请求序列化处理一般是设为AFHTTPResponseSerializer）
• 这也是之前我一直请求失败的原因。当然还得记得http的请求在plist文件中还是得添加

<!-- AFNetworking http请求   -->    <key>NSAppTransportSecurity</key>    <dict>        <key>NSAllowsArbitraryLoads</key>        <true/>    </dict>

---

• 注：若是出现build failed，AFNetworking编译失败
  -
  可在下图为主输入：$(inherited)
  
  重新编译下即可

• AFNetWOrking默认会保存cookie，每次请求的cookie是之前请求，并且缓存下来的，所以会是对应的数组

    NSHTTPCookieStorage * story =  [NSHTTPCookieStorage sharedHTTPCookieStorage];    NSHTTPCookie * coo;    // 所有的cookie     NSArray * arr1=story.cookies;    // 指定URL的cookie    NSArray * arr=[story cookiesForURL:[NSURL URLWithString:@"http://111.12.43.222"]];       for (NSHTTPCookie * cookestr in arr) {        NSLog(@"---coo = %@",cookestr);        coo = cookestr;    }