开发中,我们接触就多得请求方式是post
和get
,但是有时我们需要用到put
方式,然而AFNetworking早就帮我们封装好了(万幸)。
并且后台需要我们传递JSON格式的数据,这时我们会想那还不简单,把以往的字典转换为JSON不就好了
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&parseError];
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
然后后台反馈的结果是传递的json格式解析不出来,于是百度之后,发现这样才是正确的写法(以下把AFN二次封装了一遍)
#pragma mark -- PUT请求 --
+ (void)putWithURLString:(NSString *)URLString
parameters:(id)parameters
success:(void (^)(id))success
failure:(void (^)(NSError *))failure {
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
manager.responseSerializer = [AFJSONResponseSerializer serializer];
manager.requestSerializer = [AFJSONRequestSerializer serializer];
[manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[manager PUT:URLString parameters:parameters success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
if (success) {
success(responseObject);
}
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
if (failure) {
failure(error);
}
}];
}
这时你会发现还是上传不成功,原因是受到JSON格式的思维误区,以为还要转换为JSON格式,其实是不需要的,直接传递字典形式就可以了
下面为调用方法
NSDictionary *parameter = @{@"defeatNote":self.textView.text,@"leadsId":@([self.leadsInfoId integerValue]),@"defeatType":@"7"};
[ZYNetWorking putWithURLString:urlString parameters:parameter success:^(id responseObject) {
// 如果写这句话 会导致程序崩溃
//id obj = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers error:nil];
NSLog(@"%@",responseObject);
} failure:^(NSError *error) {
}];
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