1. 利用第三方框架獲取伺服器資料(AFNetworking框架);
* 2.使用POST/GET方式進行提交*
3.頭部檔案匯入AFNetworking.h

一：首先看程式碼POST請求

 //請求的引數
    NSDictionary *parameters = @{@"username":username,
                                 @"password":password
                                 };
    //請求的url
    NSString *urlString = @"http://......../ErpProject/user/getUser"
 
;
    //請求的managers
    AFHTTPSessionManager *managers = [AFHTTPSessionManager manager];
    managers.requestSerializer=[AFJSONRequestSerializer serializer];
    //managers.responseSerializer=[AFJSONResponseSerializer serializer];
    managers.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"text/html"
 
,@"text/plain",@"application/json",@"text/javascript", nil];
    [managers POST:urlString parameters:parameters progress:^(NSProgress * _Nonnull uploadProgress) {
    } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        NSLog(@"請求成功,伺服器返回的資訊%@",responseObject);
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError
 
 * _Nonnull error) {
        NSLog(@"請求失敗,伺服器返回的錯誤資訊%@",error);
    }];

二：其次看使用GET方式請求

 NSDictionary *dict = @{
                           @"id":@"inedex_id",
                           };
     AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    [manager GET:@"http://indexen/cn/com?" parameters:dict progress:nil success:
     ^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
            NSLog(@"請求成功---%@",responseObject);
     } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
         NSLog(@"請求失敗,伺服器返回的錯誤資訊%@",error);
     }];

三：該注意的細節：

    AFHTTPSessionManager *managers = [AFHTTPSessionManager manager];
    managers.requestSerializer=[AFHTTPRequestSerializer serializer];
    managers.responseSerializer=[AFHTTPResponseSerializer serializer];
或者：
    AFHTTPSessionManager *managers = [AFHTTPSessionManager manager];
    managers.requestSerializer=[AFJSONRequestSerializer serializer];
    //managers.responseSerializer=[AFJSONResponseSerializer serializer];

四：轉換為字典（有些服務端資料需要轉換才可以讀區到）：

NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers error:nil];

五：AFNetworking基本的功能，請求網路資料，就到這裡了，如果滿意可以給予點贊或者關注，後續還會繼續釋出更完美的文章，如果有不足之處，可以提出來共同努力！謝謝！