WKWebView添加cookie方法，自己亲测可用
// 可以创建多个cookie ，注意，这里cookie一定要创建完整的，越完整越好，切记，只设name 和 value是没用的
let cookie = HTTPCookie(properties: [HTTPCookiePropertyKey.name : "ga",
HTTPCookiePropertyKey.value: "\(LBConfiguration.enviroment == .Gray ? 1 : 0)",
HTTPCookiePropertyKey.domain: ".aaaaaa.com",
HTTPCookiePropertyKey.path: "/",
HTTPCookiePropertyKey.version: 0,
HTTPCookiePropertyKey.expires: Date(timeIntervalSinceNow: 60*60*24*99)])
let cookie2 = HTTPCookie(properties: [HTTPCookiePropertyKey.name : "ga",
HTTPCookiePropertyKey.value: "\(LBConfiguration.enviroment == .Gray ? 1 : 0)",
HTTPCookiePropertyKey.domain: ".bbbbbb.com",
HTTPCookiePropertyKey.path: "/",
HTTPCookiePropertyKey.version: 0,
HTTPCookiePropertyKey.expires: Date(timeIntervalSinceNow: 60*60*24*99)])
// 这里实际上是清理已存在的旧cookie，这一步不做，老的cookie可能会影响新的cookie，现在测试来看，不清也没问题
if let oldCookies = HTTPCookieStorage.shared.cookies {
for ck in oldCookies {
if ck.name == "ga" {
HTTPCookieStorage.shared.deleteCookie(ck)
}
}
// 这里仅仅是用来查看是否已清掉老的cookie
if let temCookies = HTTPCookieStorage.shared.cookies {
for ck in temCookies {
print("cookie = ",ck.name)
}
}
}
if #available(iOS 11.0, *) {
// iOS11 之后苹果给了API,就不用那么麻烦了，直接先设cookie，再在回调里加载，我这里调二次，是因为工程可能有两个或更多的主域名，如果只有一个域名，就不用这样做了
mainWeb.configuration.websiteDataStore.httpCookieStore.setCookie(cookie!) { [weak self] in
self?.mainWeb.configuration.websiteDataStore.httpCookieStore.setCookie(cookie2!) {
//这里特别要留意，request一定要在回调内创建，不然会有问题，切记
let request = URLRequest(url: URL(string: urlstr)!)
self?.mainWeb.load(request)
}
}
} else {
// 这里要注意了，如果你是单域名，只需要setValue一次就行，这里之所以这样做，是为了解决第一次请求时没有设上cookie的问题
var request = URLRequest(url: URL(string: "http://xx.aaaaaa.com/xxxxxx")!)
request.setValue(getCookieString(cookie!), forHTTPHeaderField: "Cookie")
request.setValue(getCookieString(cookie2!), forHTTPHeaderField: "Cookie")
// 这里作用是通过js注入的方式把cookie种到本地，之后就会一直有了
let cookieScript = WKUserScript(source: "document.cookie = '\(getCookieString(cookie!))';document.cookie = '\(getCookieString(cookie2!))';", injectionTime: WKUserScriptInjectionTime.atDocumentStart, forMainFrameOnly: false)
mainWeb.configuration.userContentController.addUserScript(cookieScript)
mainWeb.load(request)
}
// cookie转换成字符串，方便写入，
func getCookieString(_ cookie:HTTPCookie) -> String {
let str = "\(cookie.name)=\(cookie.value);domain=\(cookie.domain);expiresDate=\(cookie.expiresDate ?? Date(timeIntervalSinceNow: 60*60*24*99));path=\(cookie.path);sessionOnly=\(cookie.isSessionOnly ? "TRUE":"FALSE");isSecure=\(cookie.isSecure ? "TRUE":"FALSE")"
return str
}