WKWebView注入已登录的Cookie(web app保持登录)

原文地址：https://blog.csdn.net/sinco25/article/details/128486770

需求

有一个完全是web的app项目，用WKWebView包装。在第一次登录以后，保持session有效，下次开app自动进入已登录的首页。

实现：

把要打开的URL的HOST记下来

主要是按host分别记录和使用cookie，比如:www.foo.com和www.baidu.com的cookie不能混着

- (void)viewDidLoad {

    self.toUrl = [NSURL URLWithString:@"http://foo.com:8090/xxx.html"];

    self.urlHost = self.toUrl.host;

}

登录后把cookie存在本地

- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler

{

    //本地存储

    NSUserDefaults *userDefault = [NSUserDefaults standardUserDefaults];

    NSMutableDictionary *cookieDic = [[NSMutableDictionary alloc] initWithDictionary:[userDefault objectForKey:self.urlHost]];

    //取出cookie，写进本地存储

    WKHTTPCookieStore * wkcookieStore = [WKWebsiteDataStore defaultDataStore].httpCookieStore;

    [wkcookieStore getAllCookies:^(NSArray<NSHTTPCookie *> * _Nonnull cookies) {

        NSArray* allCookis=cookies;

        for (NSHTTPCookie *cookie in allCookis) {

            NSLog(@"cookie: %@",cookie);

            [cookieDic setObject:[cookie properties] forKey:cookie.name];

        }

        [userDefault setObject:cookieDic forKey:self.urlHost];

    }];

    decisionHandler(WKNavigationResponsePolicyAllow);

}

把cookie注入到WKWebsiteDataStore

一定要在WKWebView实例化之前做注入

//注入cookie

NSUserDefaults *userDefault = [NSUserDefaults standardUserDefaults];

NSDictionary*  cookieDic = [userDefault objectForKey:self.urlHost];

for (NSString *key in cookieDic) {

    NSDictionary* obj =[cookieDic objectForKey:key];

    NSHTTPCookie *cookie = [[NSHTTPCookie alloc] initWithProperties:obj];

    [[WKWebsiteDataStore defaultDataStore].httpCookieStore setCookie:cookie completionHandler:nil];

}

//注入后再实例化   

self.webView = [[WKWebView alloc] initWithFrame:CGRectZero configuration:webConfig];

[self.webView loadRequest:[NSURLRequest requestWithURL:self.toUrl]];