全局设置网页代理

//设置所有内嵌webView统一的User-Agent

    NSMutableDictionary *dictionary = [NSMutableDictionarydictionaryWithObjectsAndKeys:[MTDCommonUtlgetDeviceInfoParam],@"UserAgent",nil];

    [dictionary setValue:[MTDCommonUtlgetDNSServers]forKey:@"dns_mark"];

    [dictionary setValue:[GSDeviceUtilgetDeviceUUID]forKey:@"device_id"];

    [[NSUserDefaultsstandardUserDefaults]registerDefaults:dictionary];

  // end