一、存储Cookie

1. 登录成功后，存储Cookie到本地。因为下次重启APP，不再走登录接口的话，Cookie会丢失，所以需要先存本地。

存储时注意，要判断是当前登录系统对应的域名或IP。因为我遇到，登录接口成功后，还出现了友盟的Cookie的，防止被其他域名或IP的Cookie给覆盖。

1.存储Cookie

// 存储Cookie? ? ? ?

NSArray *cookies = [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies];?? ? ? ?? ? ? ?

NSURL *url = [NSURL URLWithString:QDCConfigSet.host];?? ? ? ?? ? ? ?

NSString *IP = url.host;?? ? ? ?? ? ? ?

for (NSHTTPCookie *tempCookie in cookies) {?? ? ? ? ? ?? ? ? ? ? ?

????if ([tempCookie.domain isEqualToString:IP]) {?? ? ? ? ? ? ? ?? ? ? ? ? ? ? ?

????????[QDCUserDefaults setObject:tempCookie.properties forKey:@"KMobileServiceCookie"];? ? ? ? ? ?

????}? ? ? ?

}

二、设置同步Cookie

方式1. iOS 11及以上的设置同步Cookie的方式：

（该方式有坑：说的是iOS11及以上就能用，但是实际使用时，我遇到 iOS14一下几率性的同步Cookie失败的问题，至今未找到原因，请知道的大佬指教，感恩有你！）

取本地存储的Cookie的值，赋值到Cookie，然后针对目标域名或IP进行设置同步。

// 设置Cookie

- (void)setWebViewCookie {?? ???

????[[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookieAcceptPolicy:NSHTTPCookieAcceptPolicyAlways];? ?

????// 获取cookie信息? ?

????NSDictionary *properties = [[NSUserDefaults standardUserDefaults] objectForKey:@"KMobileServiceCookie"];?? ?? ?

????NSMutableDictionary *muProperties = [NSMutableDictionary dictionaryWithDictionary:properties];? ??

????NSURL *url = [NSURL URLWithString:QDCConfigSet.managerHost];?? ?? ?

????NSString *IP = url.host;?? ?? ?

????[muProperties setValue:IP forKey:@"Domain"];?? ?? ?

????NSHTTPCookie *cookie = [NSHTTPCookie cookieWithProperties:muProperties];?? ?? ? ????[[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:cookie];?? ?? ?

????// 同步cookie? ? WKHTTPCookieStore *cookieStrore = self.webView.configuration.websiteDataStore.httpCookieStore;?? ?? ?

????NSArray *cookies = [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies];?? ?? ?

????for (NSHTTPCookie *cookie in cookies) {?? ? ? ?? ? ? ?

????????if ([cookie.domain isEqualToString:IP]) {?? ? ? ? ? ?? ? ? ? ? ?

????????????[cookieStrore setCookie:cookie completionHandler:nil];? ? ? ?

????????}? ?

????}

}

方式2. 推荐使用，JS注入的方式：

创建webView

创建userScript

拼接CookieJS代码

// 设置webView? ?

WKWebViewConfiguration *webConfig = [[WKWebViewConfiguration alloc] init];? ?

// 设置偏好设置? ?

webConfig.preferences = [[WKPreferences alloc] init];? ?

// 默认认为YES? ?

webConfig.preferences.javaScriptEnabled = YES;? ?

// web内容处理池? ?

webConfig.processPool = [[WKProcessPool alloc] init];?? ?? ?

// 加cookie给h5识别，表明在iOS端打开该地址? ?

WKUserContentController *userContentController = WKUserContentController.new;? ?

WKUserScript *cookieScript = [self injectCookieScript];? ?

[userContentController addUserScript:cookieScript];? ?

webConfig.userContentController = userContentController;?? ?? ?

DWKWebView *webView = [[DWKWebView alloc] initWithFrame:self.view.bounds configuration:webConfig];

// 通过注入JS解决Cookies不同步的问题

- (WKUserScript *)injectCookieScript {?? ?? ?

????WKUserScript *userScript = [[WKUserScript alloc] initWithSource:[self cookieString] injectionTime:WKUserScriptInjectionTimeAtDocumentStart forMainFrameOnly:NO];?? ?? ?

????return userScript;

}

// 拼接cookie字符串

- (NSString *)cookieString {?? ?? ?

????[[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookieAcceptPolicy:NSHTTPCookieAcceptPolicyAlways];?? ?

????// 获取cookie信息? ? ? ?

????NSDictionary *properties = [[NSUserDefaults standardUserDefaults] objectForKey:@"KMobileServiceCookie"];? ? ? ? ?

????NSMutableDictionary *muProperties = [NSMutableDictionary dictionaryWithDictionary:properties];? ? ? ? NSURL *url = [NSURL URLWithString:QDCConfigSet.managerHost];? ? ? ? ?

????NSString *IP = url.host;? ? ??? ?

????[muProperties setValue:IP forKey:@"Domain"];? ? ??? ?

????NSHTTPCookie *cookie = [NSHTTPCookie cookieWithProperties:muProperties];? ? ??? ? ????[[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:cookie];?? ?? ?

????NSMutableString *script = [NSMutableString string];? ? [script appendString:@"var cookieNames = document.cookie.split('; ').map(function(cookie) { return cookie.split('=')[0] } );\n"];?? ?? ?

????for (NSHTTPCookie *cookie in [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]) {?? ? ? ?? ? ? ? if ([cookie.value rangeOfString:@"'"].location != NSNotFound) {? ? ? ? ? ?

????????????continue;? ? ? ?

? ? ? ? ?}? ? ? ? ? ? ? ?

????????if ([cookie.domain isEqualToString:IP]) {?? ? ? ? ? ?? ? ? ? ? ?

????????????NSString *string = [NSString stringWithFormat:@"%@=%@;domain=%@;path=%@",? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? cookie.name, cookie.value, cookie.domain, cookie.path ?: @"/"];? ? ? ? ? ? ? ? ? ? ? ?

????????????[script appendFormat:@"if (cookieNames.indexOf('%@') == -1) {document.cookie='%@'; };\n", cookie.name, string];? ? ? ?

????????}? ? ? ? ? ?

????}? ?

? ? return script;

}