WKWebView ajax cookie

这2天遇到了这个问题，这此我分享给大家。

1问题原因：WKWebView加载的网页中用到了ajax请求，但是ajax又没有带上cookie导致无法请求到数据。

解决办法如下：

navigationDelegate代理方法

- (void) webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler

中添加如下代码：

pragma mark 在发送请求之前，决定是否跳转

- (void) webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler{

NSLog(@"decidePolicyForNavigationAction");

NSMutableString *cookie = [NSMutableString stringWithFormat:@""];

cookie=[[NSUserDefaults standardUserDefaults] objectForKey:@"cookie"];// 你所保存的cookie

// 如果请求头部不包含cookie值则需要我们去传cookie

if ([navigationAction.request allHTTPHeaderFields][@"Cookie"] && [[navigationAction.request allHTTPHeaderFields][@"Cookie"] rangeOfString:cookie].length > 0) {

decisionHandler(WKNavigationActionPolicyAllow);

} else {

NSMutableURLRequest *request= [NSMutableURLRequest requestWithURL:navigationAction.request.URL];

[request setValue:cookie forHTTPHeaderField:@"Cookie"];

//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=/'\

}";

//拼凑js字符串，按照自己的需求拼凑Cookie

NSMutableString *JSCookieString = JSFuncString.mutableCopy;

for (NSHTTPCookie *cookie in cookieStorage.cookies) {

if (![cookie.name isEqualToString:@"__cust"]) {

NSString *excuteJSString = [NSString stringWithFormat:@"setCookie('%@', '%@', 3);", cookie.name, cookie.value];

[JSCookieString appendString:excuteJSString];

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

}

}

//执行js

[webView evaluateJavaScript:JSCookieString completionHandler:nil];

decisionHandler(WKNavigationActionPolicyAllow);

}

}