Ios NSMutableURLRequest'；s的响应不包含该信息

NSLog信息如下所示：

NSString *url = [NSString stringWithFormat: @"http://apis.haoservice.com/weather?cityname=%@&key=%@", cityname, China_Weather_APP_KEY];

NSString *url_after = [url stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url_after]
                                                       cachePolicy:NSURLRequestUseProtocolCachePolicy
                                                   timeoutInterval:10.0];
[request setHTTPMethod:@"GET"];

NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
                                            completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                                                if (error) {
                                                    NSLog(@"%@", error);
                                                } else {
                                                    NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
                                                    NSLog(@"%@", response);  // Here I print the response information
                                                }
                                            }];
[dataTask resume];

页面将显示我想要得到的结果：

---

为什么我的响应没有包含图片的信息？

您需要访问服务器响应中的

数据

，以获取

JSON

响应，因此使用

NSJSONSerialization

从rsponse数据获取Dictionary对象

http://apis.haoservice.com/weather?cityname=成都&key=af4587a7d87740ae9a0d73697e0cccc9

http://apis.haoservice.com/weather?cityname=成都&key=af4587a7d87740ae9a0d73697e0cccc9

if (error) {
    NSLog(@"%@", error);
} else {
    NSError* parseError;
    NSDictionary* json = [NSJSONSerialization JSONObjectWithData: data options:kNilOptions error:&parseError];
    NSLog(@"%@",json);                                   
}