Question

用afnetworking请求得到的json数据怎么去掉空值

Answer 1

AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:[NSURL URLWithString:@""]];//这里要将url设置为空
httpClient.parameterEncoding = AFJSONParameterEncoding;
[httpClient setDefaultHeader:@"Accept" value:@"text/json"];
NSMutableDictionary *params=[[NSMutableDictionary alloc] init]; // 要传递的json数据是一个字典
[params setObject:UserID forKey:@"userId"];
[params setObject:[self.contDic objectForKey:@"weiboId" ] forKey:@"operateId"];
[params setObject:@"8d0ce196d0eafa27780cc3a7217de71d92474021dc0a4fc593d4f9b9eda320ca" forKey:@"key"];
// httpClient 的postPath就是上文中的pathStr，即你要访问的URL地址，这里是向服务器提交一个数据请求，
[httpClient postPath:pathStr parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(@"data====%@",params);
NSString *responseStr = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
NSLog(@"Request Successful, response '%@'", responseStr);
[responseStr release];
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"[HTTPClient Error]: %@", error);