WKWebView不自动存储session的问题(参考别人)
1）预加载一次HTML只加载不显示（获得Cookies，存储传递）
//加载本地html
[self.webView loadHTMLString:@"" baseURL:[NSURL URLWithString:self.url]];
2）实现一下两个代理方法（上面出现过），直接复制就行
// 页面加载完成之后调用 ----- self.isFirstLoad：是否首次调用，首次调用才存储
//下面是上图的代码，直接复制即可
- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation{
if (!self.isFirstLoad) {
//取出cookie
NSHTTPCookieStorage *cookieStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
//js函数
NSString *JSFuncString =
@"function setCookie(name,value,expires)\
{\
var oDate=new Date();\
oDate.setDate(oDate.getDate()+expires);\
document.cookie=name+'='+value+';expires='+oDate+';path=/'\
}\
function getCookie(name)\
{\
var arr = document.cookie.match(new RegExp('(^| )'+name+'=({FNXX==XXFN}*)(;|$)'));\
if(arr != null) return unescape(arr[2]); return null;\
}\
function delCookie(name)\
{\
var exp = new Date();\
exp.setTime(exp.getTime() - 1);\
var cval=getCookie(name);\
if(cval!=null) document.cookie= name + '='+cval+';expires='+exp.toGMTString();\
}";
//拼凑js字符串
NSMutableString *JSCookieString = JSFuncString.mutableCopy;
for (NSHTTPCookie *cookie in cookieStorage.cookies) {
if (![cookie.name isEqualToString:@"__cust"]) {
NSString *excuteJSString = [NSString stringWithFormat:@"setCookie('%@', '%@', 1);", cookie.name, cookie.value];
[JSCookieString appendString:excuteJSString];
}
}
//执行js
[webView evaluateJavaScript:JSCookieString completionHandler:^(id obj, NSError * _Nullable error) {
[self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:self.url]]];
}];
self.isFirstLoad = YES;
}
}
//--------------- 在收到响应后，决定是否跳转
//以下是上图的代码
- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler{
//存储session
NSHTTPURLResponse *response = (NSHTTPURLResponse *)navigationResponse.response;
NSArray *cookies =[NSHTTPCookie cookiesWithResponseHeaderFields:[response allHeaderFields] forURL:response.URL];
for (NSHTTPCookie *cookie in cookies) {
[[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:cookie];
}
//允许跳转
decisionHandler(WKNavigationResponsePolicyAllow);
}
