一开始想到的方式是：通过WKNavigationDelegate的代理方法- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler
来在请求之前获得请求信息，并把请求头信息添加进去，如下：
-(void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler{
虚咐茄 NSLog(@"灰度测试h5Url: %@",navigationAction.request.URL.absoluteString)
if ([navigationAction.request.URL.absoluteString containsString:OUR_URL_ID]) {
// 拦截所有网络请求头，重新添加参数请求头信息
NSMutableURLRequest *mutableRequest = [navigationAction.request mutableCopy]
NSDictionary *requestHeaders = navigationAction.request.allHTTPHeaderFields
if ([requestHeaders isKindOfClass:[NSDictionary class]]) {
//简单通过Version_Key判断下是否已经加入了请求信息
if ([AFNetWorkManager KeyUrlrequestOneNull:requestHeaders]) {
[AFNetWorkManager addWebDefaultKeyUrlrequest:mutableRequest]
[webView loadRequest:mutableRequest]
NSLog(@"灰度测试h5Url: %@ \n请求头：%@",navigationAction.request.URL.absoluteString,mutableRequest.allHTTPHeaderFields)
decisionHandler(WKNavigationActionPolicyCancel)
return
}else{
//参数正常，放开请求
NSLog(@"灰度测试h5Url: %@ \n请求头：%@",navigationAction.request.URL.absoluteString,requestHeaders)
decisionHandler(WKNavigationActionPolicyAllow)
}
}else{
//没有请求头,加上新的请求头，并差察赋予参数
mutableRequest.allHTTPHeaderFields = [NSMutableDictionary new]
[AFNetWorkManager addWebDefaultKeyUrlrequest:mutableRequest]
[webView loadRequest:mutableRequest]
NSLog(@"灰度简链测试h5Url: %@ \n请求头：%@",navigationAction.request.URL.absoluteString,mutableRequest.allHTTPHeaderFields)
decisionHandler(WKNavigationActionPolicyCancel)
}
}else{
//本地请求资源，pdf等
decisionHandler(WKNavigationActionPolicyAllow)
}
}
但是经过打印发现，只拦截了一些html请求，向png、css、js资源请求，并没有拦截到，甚至没有走这个方法。
无奈，只能网上搜索，结果发现了：https://github.com/fenglee594/WKWebViewRequestHook
这个demo，稍加改动，亲测有效。
1.html4头文衡高团件
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/htmlcharset=UTF-8">念裂
<title>主标题 | 副标题</title>
</head>
<body>
</body>
</html>
2. html5网页头文件：精简版
< !DOCTYPE html>
< html>
< head>
< meta charset="UTF-8">
< title> 主标题 | 副标题< /title>
< /head>
< body>
< /body>
< /html>
3 .html5网页头文件：详细版
包括了html页面调用css、js文件的三种方法
< !DOCTYPE html>
< html>
< head>
< meta charset="UTF-8">
< title> 主标题 | 副标题< /title>
< link rel="stylesheet" href="style.css">
< style> css内容< /style>
< /head>
< body>
< !-- 注释 -->
< script src="javascript.js">咐橘 < /script>
< script> js内容< /script>
< /body>
< /html>
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