post发送JSON数据(字符串、数组、字典、自定义对象)给服务器

触发发送的方法

• 这次Demo是通过点击屏幕触发发送数据给服务器事件
• 前提需要开启本地模拟服务器

-  (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{    NSURL *url = [NSURL URLWithString:@"http://127.0.0.1/post/postjson.php"];    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:15];    request.HTTPMethod = @"POST";    //选择不同类型的data发送给服务器//    request.HTTPBody = [self jsonString];//    request.HTTPBody = [self dictionaryData];//    request.HTTPBody = [self arrayData];    request.HTTPBody = [self objectData];#pragma clang diagnostic push#pragma clang diagnostic ignored "-Wdeprecated-declarations"    [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse * _Nullable response, NSData * _Nullable data, NSError * _Nullable connectionError) {        if (data == nil || connectionError != nil) {            NSLog(@"请求数据失败！");            return ;        }//        id recive = [NSJSONSerialization JSONObjectWithData:data options:0 error:NULL];//服务器返回的时字符串        NSString *recive = [[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding];        NSLog(@"%@", recive);    }];#pragma clang diagnostic pop}

发送JSON字符串

- (NSData *)jsonString{NSString *string = @"{\"name\":\"zhangsan\",\"age\":\"18\"}";NSData *data = [string dataUsingEncoding:NSUTF8StringEncoding];return data;}

发送字典给服务器

- (NSData *)dictionaryData{NSDictionary *dict = @{                       @"name":@"zhangsan",                       @"age":@18                       };//通过序列化成data类型NSData *data = [NSJSONSerialization dataWithJSONObject:dict options:0 error:NULL];return data;}

发送数组给服务器

- (NSData *)arrayData{NSArray *array = @[                   @{@"zhangsan":@18},                   @{@"lisi":@20}                   ];NSData *data =[NSJSONSerialization dataWithJSONObject:array options:0 error:NULL];return data;}

发送oc对象给服务器

• 先讲对象转换为字典
• 通过系统提供的JSON解析类进行序列化

    - (NSData *)objectData{    RZPerson *person = [[RZPerson alloc]init];    person.name = @"zhangsan";    person.age = 20;    //先将对象转换为字典类型    NSDictionary *dict = [person dictionaryWithValuesForKeys:@[@"name",@"age"]];    //将字典转换为data类型    NSData *data = [NSJSONSerialization dataWithJSONObject:dict options:0 error:NULL];    return data;    }

转载须注明出处：http://www.jianshu.com/p/384805833374