iOS原生网络请求

前言：之前公司有个java牛人，和他一起做一个新的项目，结果他的接口协议，和我之前用过的完全不一样，试了很多种方法，依旧请求不成功，最后通过其他途径找到了解决方法，这里就不再唠叨这坎坷的路了。

先贴上接口协议
req包包含包头head和包体body
{
“head”:{
“sessionID”:”xxx” //会话id（暂时不用）
},
“body”:{
}
}
body为请求具体参数

resp包包含包头head和包体body
{
    “head”:{
        “rct”:0,                //返回错误代码 0表示正常，其他值为错误
        “msg”:”正常”    //错误说明
    },
    body:{
    }
}

body内容为各个包具体返回信息

body里面就是与后台交互的主要内容。

下面是我封装的网络请求的类，get和post

+(void)GET:(NSString *)URL parameters:(NSDictionary *)dic success:(httpRequestSuccess)success failure:(httpRequestFailed)failure{
    //创建配置信息
    NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
    //设置请求超时时间：5秒
    configuration.timeoutIntervalForRequest = 10;
    //创建会话
    NSURLSession *session = [NSURLSession sessionWithConfiguration: configuration delegate: nil delegateQueue: [NSOperationQueue mainQueue]];
    NSMutableURLRequest * request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@%@",HTTPRootPath,URL]]];
    //设置请求方式：POST
    [request setHTTPMethod:@"GET"];
    [request setValue:@"application/json" forHTTPHeaderField:@"content-Type"];
    [request setValue:@"application/json;charset=utf-8" forHTTPHeaderField:@"Accept"];
    
    //data的字典形式转化为data
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dic options:NSJSONWritingPrettyPrinted error:nil];
    //设置请求体
    [request setHTTPBody:jsonData];
    
    NSURLSessionDataTask * dataTask =[session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
        if (error == nil) {
            NSDictionary *responseObject = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
            success(responseObject);
        }else{
            NSLog(@"%@",error);
            failure(error);
        }
    }];
    [dataTask resume];
}
+(void)POST:(NSString *)URL parameters:(NSDictionary *)dic success:(httpRequestSuccess)success failure:(httpRequestFailed)failure{
    //创建配置信息
    NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
    //设置请求超时时间：5秒
    configuration.timeoutIntervalForRequest = 10;
    //创建会话
    NSURLSession *session = [NSURLSession sessionWithConfiguration: configuration delegate: nil delegateQueue: [NSOperationQueue mainQueue]];
    NSMutableURLRequest * request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@%@",HTTPRootPath,URL]]];
    //设置请求方式：POST
    [request setHTTPMethod:@"POST"];
    [request setValue:@"application/json" forHTTPHeaderField:@"content-Type"];
    [request setValue:@"application/json;charset=utf-8" forHTTPHeaderField:@"Accept"];
    
    //data的字典形式转化为data
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dic options:NSJSONWritingPrettyPrinted error:nil];
    //设置请求体
    [request setHTTPBody:jsonData];
    
    NSURLSessionDataTask * dataTask =[session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
        if (error == nil) {
            NSDictionary *responseObject = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
            success(responseObject);
        }else{
            NSLog(@"%@",error);
            failure(error);
        }
    }];
    [dataTask resume];
}

使用的时候

NSDictionary *parm = @{@"head":@{@"sessionID":@""},@"body":@{@"userID":user,@"page":[NSString stringWithFormat:@"%d",IndexPage]}};
        [NativeNetWork POST:@"getFirstPageList" parameters:parm success:^(id responseObject) {
            NSLog(@"%@",responseObject);
            NSDictionary * head = [responseObject objectForKey:@"head"];
            NSString *ReturnMessage = [head valueForKey:@"msg"];
            int ReturnCode = [[head valueForKey:@"rtc"] intValue];
            if (ReturnCode == 0) {
                NSDictionary * body = [responseObject objectForKey:@"body"];
                if (IsRefresh) {
                    DataArray = [NSMutableArray arrayWithCapacity:0];
                }
                for (NSDictionary * dic in body) {
                    QuestionModel * model = [[QuestionModel alloc] init];
                    [model setValuesForKeysWithDictionary:dic];
                    [DataArray addObject:model];
                }
                [ListView reloadData];
            }else{
                [self alertViewWithTitle:nil withMessage:ReturnMessage];
            }
        } failure:^(NSError *error) {
            [self alertViewWithTitle:@"获取列表失败" withMessage:@"请检查网络"];
        }];
    });

end