iOS 和 H5 页面交互（WKWebview 和 UIWebview cookie 设置）
主要记录关于cookie相关的坑
1. UIWebview
1. UIWebview 相对比较简单 直接通过 NSHTTPCookieStorage 设置cookie就能实现。
代码部分
```
NSURL *cookieHost = [NSURL URLWithString:self.domain];
// 设定 cookie
NSHTTPCookie *cookie = [NSHTTPCookie cookieWithProperties:
[NSDictionary dictionaryWithObjectsAndKeys:
[cookieHost host], NSHTTPCookieDomain,
[cookieHost path], NSHTTPCookiePath,
self.cookieKey, NSHTTPCookieName,
self.cookieValue, NSHTTPCookieValue,
nil]];
// 加入cookie
[[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:cookie];
```2. 如果在第一次请求的时候需要在HTTPRequest 通过setValueForKey设置 HeaderValue
2. WKWebview
在使用WKWebview的时候也是需要分两种情况传递：
- 1.HTTPRequest 请求URL的时候携带 如后端PHP获取 cookie
-
2.注入js 目的是让前端从页面里边获取到cookie 可以通过在document.cookie 设置 通过WKWebview 初始化时候把js传递过去
`
WKUserScript * cookieScript = [[WKUserScript alloc] initWithSource: cookieValue injectionTime:WKUserScriptInjectionTimeAtDocumentStart forMainFrameOnly:NO]; 3.NSHTTPCookieStorage 似乎不携带没问题，因为我们目前没有通过这个传递cookie
网上参考别人的方法是要实现下面几个步骤，但是我们项目并没有按照这三种必要方式，但是可以做个参考：
WKWebview三个处理步骤： （1）iOS11，WKHTTPCookieStore 直接传递。（如果是只支持iOS11，下面两步可以不做）； （2）iOS8-iOS10， js注入； （3）PHP携带cookie方式
相关代码
#pragma mark - WKWebview
// iOS11
- (void)setWkCookie:(WKWebView *)wkWebview completionHandler:(nullable void (^)(void))comple {
NSURL *cookieHost = [NSURL URLWithString:self.domain];
// 设定 cookie
NSHTTPCookie *cookie = [NSHTTPCookie cookieWithProperties:
[NSDictionary dictionaryWithObjectsAndKeys:
[cookieHost host], NSHTTPCookieDomain,
[cookieHost path], NSHTTPCookiePath,
self.cookieKey, NSHTTPCookieName,
self.cookieValue, NSHTTPCookieValue,
// [NSDate dateWithTimeIntervalSinceNow:30*60*60],NSHTTPCookieExpires,
nil]];
// 加入cookie
//发送请求前插入cookie；
if (@available(iOS 11.0, *)) {
WKHTTPCookieStore *cookieStore = wkWebview.configuration.websiteDataStore.httpCookieStore;
[cookieStore setCookie:cookie completionHandler:^{
comple?comple():nil;
}];
} else {
}
}
// JS携带cookie的形式
- (void)setWkJsCookie:(WKUserContentController *)userContentController {
// 单个cookie，多个的话，再加上document.cookie ='%@=%@';一次
NSString *cookieStr = [NSString stringWithFormat:@"document.cookie ='%@=%@';",self.cookieKey,self.cookieValue];
WKUserScript * cookieScript = [[WKUserScript alloc] initWithSource: cookieStr injectionTime:WKUserScriptInjectionTimeAtDocumentStart forMainFrameOnly:NO];
[userContentController addUserScript:cookieScript];
}
// PHP携带cookie的形式
- (void)setWkPHPCookie:(NSMutableURLRequest *)request {
//通过host关联cookie。
NSMutableDictionary *cookieDic = [NSMutableDictionary dictionary];
NSMutableString *cookieValue = [NSMutableString stringWithFormat:@""];
NSHTTPCookieStorage *cookieStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (NSHTTPCookie *cookie in [cookieStorage cookies]) {
[cookieDic setObject:cookie.value forKey:cookie.name];
}
if ([cookieDic objectForKey:[CookieManager shareInstance].cookieKey]) {
[cookieDic removeObjectForKey:[CookieManager shareInstance].cookieKey];
}
// cookie重复，先放到字典进行去重，再进行拼接
for (NSString *key in cookieDic) {
NSString *appendString = [NSString stringWithFormat:@"%@=%@;", key, [cookieDic valueForKey:key]];
[cookieValue appendString:appendString];
}
[cookieValue appendString:[NSString stringWithFormat:@"%@ = %@;",self.cookieKey,self.cookieValue]];
[request addValue:cookieValue forHTTPHeaderField:@"Cookie"];
}
#pragma mark - Webview
// 客户端添加cookie
- (void)setWebCookie {
NSURL *cookieHost = [NSURL URLWithString:self.domain];
// 设定 cookie
NSHTTPCookie *cookie = [NSHTTPCookie cookieWithProperties:
[NSDictionary dictionaryWithObjectsAndKeys:
[cookieHost host], NSHTTPCookieDomain,
[cookieHost path], NSHTTPCookiePath,
self.cookieKey, NSHTTPCookieName,
self.cookieValue, NSHTTPCookieValue,
nil]];
// 加入cookie
[[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:cookie];
}