如何获得UIWebView用户代理 [英] How to get UIWebView User-Agent

问题描述

使用一台远程服务器时遇到问题。我的应用程序使用 [NSData initWithContentsOfURL：] 方法向服务器发出请求，作为响应，我得到网站的网址，我在 UIWebView 。

I've got a problem working with one remote server. My app makes a request to a server using [NSData initWithContentsOfURL:] method and as a response I get website's url which I open in UIWebView.

问题是这些请求有不同的User-Agent，而服务器无法正确地为我服务，因为它希望我使用相同的User-Agent发送所有请求。我知道如何更改User-Agent（例如在UIWebView中更改用户代理（iPhone SDK） ））但我真正想要的是以某种方式得到 UIWebView 的用户代理并将其设置为[NSData initWithContentsOfURL：]以避免服务器端出现问题

The problem is that those requests have different User-Agent and server can't serve me correct because it expects that I send all requests with the same User-Agent. I know how to change User-Agent (e.g Change User Agent in UIWebView (iPhone SDK)) but what I really want it is somehow to get UIWebView's User-Agent and set it to [NSData initWithContentsOfURL:] to avoid problems with server side

推荐答案

我遇到了类似的问题，需要让NSURLConnection发送的用户代理与UIWebView发送的用户代理匹配。我的解决方案是创建一个UIWebView，然后只使用javascript来提取用户代理。

I just ran into a similar issue and needed to make the user agent sent by an NSURLConnection match the one sent by a UIWebView. My solution was to create a UIWebView and then just use javascript to pull out the user agent.

UIWebView* webView = [[UIWebView alloc] initWithFrame:CGRectZero];
NSString* secretAgent = [webView stringByEvaluatingJavaScriptFromString:@"navigator.userAgent"];

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