Iam 从具有两个不同 url 的 viewcontroller 调用用于 json 解析的函数。
- (void)viewDidLoad
{
[super viewDidLoad];
parseObj=[[json_parser alloc]init];
NSString *group_url=@"http://urlforgroup";
NSString *drug_url =@"http:/urlfordrug";
mConcurrentQueue=dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT,0);
dispatch_async(mConcurrentQueue, ^{tFunct1(group_url,@"group_url");});
dispatch_async(mConcurrentQueue, ^{tFunct1(drug_url,@"drug_url");});
}
void (^tFunct1)(NSString *,NSString *)=^(NSString *base_url,NSString *stat_val){
dispatch_async(dispatch_get_main_queue(), ^(void){
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
[prefs setObject:[NSString stringWithFormat:@"%@",stat_val] forKey:@"check_url"];
[parseObj parseUrl:base_url];
});
};
@end
//////////////////////// json parser//////////
-(void)parseUrl:(NSString *)baseUrl
{
NSLog(@"URL%@",baseUrl);
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
NSString *savedValue = [prefs stringForKey:@"check_url"];
NSLog(@"%@",savedValue);// showing different value group_url then drug_url
NSURL *url=[NSURL URLWithString:baseUrl];
NSURLRequest *request=[NSURLRequest requestWithURL:url];
conn=[NSURLConnection connectionWithRequest:request delegate:self];
if(conn)
{
mdata=[[NSMutableData alloc]init];
}
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
// getting an NSString
NSString *savedValue = [prefs stringForKey:@"check_url"];
NSDictionary *allData=[NSJSONSerialization JSONObjectWithData:mdata options:0 error:nil];
NSLog(@"connectionDidFinishLoading %@",savedValue);// showing same value drug url
if([savedValue isEqualToString:@"grp_url"])
{
NSLog(@"some code");
}
else
{
NSLog(@"some other code");
}
}
我想根据可验证的“savedValue”的值编写不同的解析代码。但我的问题是在connectionDidFinishLoading内部我对两个url都有相同的值“drug_url”。请帮忙。