iOS任何机构都知道如何向NSURLRequest添加代理？

我正在设置webview，但我需要使用代理加载webview的内容。 你们中的任何人都知道如何在NSURLRequest中实现代理？

例如：

NSString *location=@"http://google.com"; NSURL *url=[NSURL URLWithString:location]; NSURLRequest *request=[NSURLRequest requestWithURL:url]; // some code to set the proxy [self.myWebView loadRequest:request]; 

我真的很感谢你的帮助

Answer 1

看看iOS URL加载系统以及NSURLProtocol

您可以为NSURLRequest编写自定义NSURLProtocol类。 自定义NSURLProtocol可以拦截您的请求并为每个请求添加代理。 相关的方法是-(void)startLoading ，在这个方法中你可以使用Core-Function，这是iOS中的一个小级别的api，可以为每个请求添加代理：

 //"request" is your NSURLRequest NSURL *url = [request URL]; NSString *urlString = [url absoluteString]; CFStringRef urlStringRef = (CFStringRef) urlString; CFURLRef myURL = CFURLCreateWithString(kCFAllocatorDefault, urlStringRef, NULL); CFStringRef requestMethod = CFSTR("GET"); CFHTTPMessageRef myRequest = CFHTTPMessageCreateRequest(kCFAllocatorDefault, requestMethod, myURL, kCFHTTPVersion1_1); self.httpMessageRef = CFHTTPMessageCreateCopy(kCFAllocatorDefault, myRequest); CFReadStreamRef myReadStream = CFReadStreamCreateForHTTPRequest(kCFAllocatorDefault, myRequest); // You can add body, headers.... using core function api, CFNetwork.etc // below code is to set proxy from code if needs NSString *hostKey; NSString *portKey; if ([[[urlString scheme] lowercaseString] isEqualToString:@"https"]) { hostKey = (NSString *)kCFStreamPropertyHTTPSProxyHost; portKey = (NSString *)kCFStreamPropertyHTTPSProxyPort; } else { hostKey = (NSString *)kCFStreamPropertyHTTPProxyHost; portKey = (NSString *)kCFStreamPropertyHTTPProxyPort; } //set http or https proxy, change "localhost" to your proxy host, change "5566" to your proxy port NSMutableDictionary *proxyToUse = [NSMutableDictionary dictionaryWithObjectsAndKeys:@"localhost",hostKey,[NSNumber numberWithInt:5566],portKey,nil]; CFReadStreamSetProperty(myReadStream, kCFStreamPropertyHTTPProxy, proxyToUse); CFReadStreamOpen(myReadStream); 

希望这可以帮到你。

忘记将自定义NSURLProtocol注册到您的代表。

Answer 2

您无法向NSURLRequest添加代理。 您需要使用ASIHTTPRequest等第三方库。

 // Configure a proxy server manually NSURL *url = [NSURL URLWithString:@"http://allseeing-i.com/ignore"]; ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url]; [request setProxyHost:@"192.168.0.1"]; [request setProxyPort:3128]; 

Answer 3

我已经使用下面的代码进行Http代理。

 let sessionConfiguration = NSURLSessionConfiguration.defaultSessionConfiguration(); sessionConfiguration.connectionProxyDictionary = [ kCFNetworkProxiesHTTPEnable: true, kCFNetworkProxiesHTTPPort: myPortInt, kCFNetworkProxiesHTTPProxy: myProxyUrlString, ] let url = NSURL(string: endPointUrl) let postRequest = NSMutableURLRequest(URL: url!, cachePolicy: NSURLRequestCachePolicy.ReloadIgnoringLocalAndRemoteCacheData, timeoutInterval: 10.0) let jsonString = bodyString postRequest.HTTPBody = jsonString postRequest.HTTPMethod = "POST" postRequest.setValue("application/json", forHTTPHeaderField: "Content-Type") let session = NSURLSession(configuration: sessionConfiguration) let task = session.dataTaskWithRequest(postRequest){}