获取 IPhone的 user Agent 并post上传

    UIWebView*webView=[[UIWebView alloc] init];
    NSString*secretAgent=[webView stringByEvaluatingJavaScriptFromString:@"navigator.userAgent"];
    NSLog(@"1321321%@",secretAgent);
 /*
     NSString *urlString = [NSString stringWithFormat:@"http://api.com/res0/PushIosInfo.aspx"];
    NSURL *url = [NSURL URLWithString:urlString];

    ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
    
    NSString *appsID = [_XMLDict objectForKey:@"appsid"];
    NSLog(@"appsid%@",appsID);
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
    [request setValue:@"basic d2VibHNxOjEyMzQ1Ng==" forHTTPHeaderField:@"Authorization"];

    [request setPostValue:appsID forKey:@"AppID"];
    [request setPostValue:pushToken forKey:@"DeviceID"];
    //[request setValue:@"Mozilla/5.0 (iPhone; CPU iPhone OS 6_1 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Mobile/10B144" forHTTPHeaderField:@"User-Agent"];
    
    [request startSynchronous];
    NSDictionary *header = [request responseHeaders];
    NSLog(@"header  ==== %@",header);
    NSString *responsestr = [request responseString];
    NSLog(@"---------->>>%@<<<",responsestr);
*/