iOS application/json上傳檔案等，iosjson

iOS application/json上傳檔案等，iosjson

在和sever後台互動的過程中、有時候、他們需要我們iOS開發人員以“application/json”形式上傳。

 

    NSString *accessUrl = [NSString stringWithFormat:@"%@/xxx",@"https://www.xxxxx.com:xxxx"];        NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:accessUrl]];        request.HTTPMethod = @"POST";        //佈建要求頭    [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];        //佈建要求體    NSMutableData *body = [NSMutableData data];        [body appendData:[jsonStr dataUsingEncoding:NSUTF8StringEncoding]];        [request setHTTPBody:body];        NSHTTPURLResponse* urlResponse = nil;    NSError *error = [[NSError alloc] init];    NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error];        NSString *result = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];        if (result == nil) {        NSLog(@"json解析失敗!");    }        else    {        NSData *jsonData = [result dataUsingEncoding:NSUTF8StringEncoding];        NSError *err;        NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData                                                            options:NSJSONReadingMutableContainers                                                              error:&err];        if(err) {            NSLog(@"json解析失敗：%@",err);        }        success(dic);    }