安装SDK
必须安装 Microsoft Edge (Chromium) Canary channel 浏览器
NuGet 安装 Microsoft.Web.WebView2 预发行版 0.9.538-prerelease，正式版0.9.538安装是没用的
使用
xmlns:wv2="clr-namespace:Microsoft.Web.WebView2.Wpf;assembly=Microsoft.Web.WebView2.Wpf"
<wv2:WebView2 x:Name="Browser" Source="https://www.baidu.com"/>相关事件
SourceChanged 可以获取当前的网址，可以更新网页通过 js 修改的网址
NavigationStarting 网页加载开始
NavigationCompleted 网页加载完成
CoreWebView2Ready CoreWebView2 初始化完成，可以进行 CoreWebView2 上的事件绑定
CoreWebView2.NewWindowRequested 加载新标签之前触发，可以通过 e.Handled = true; 阻止触发，e.Uri 为要跳转的网址
代码跳转
获取源代码
主要通过 ExecuteScriptAsync 方法执行 js 代码，返回的值都是 JSON 过的。如果 JSON 编码失败则返回 null
using Newtonsoft.Json;
var html = await Browser.ExecuteScriptAsync("document.getElementsByTagName('html')[0].innerHTML");
if (string.IsNullOrWhiteSpace(html))
{
return html;
}
return "<!DOCTYPE html><html>" + JsonConvert.DeserializeObject(html) + "</html>";获取 cookie
using System;
using System.ComponentModel;
using System.Net;
using System.Security;
using System.Security.Permissions;
using System.Text;
/// <summary></summary>
/// 取得WebBrowser的完整Cookie。
/// 因为默认的webBrowser1.Document.Cookie取不到HttpOnly的Cookie
///
public class FullWebBrowserCookie
{
[SecurityCritical]
public static string GetCookieInternal(Uri uri, bool throwIfNoCookie)
{
uint pchCookieData = 0;
var url = UriToString(uri);
const uint flag = (uint)NativeMethods.InternetFlags.INTERNET_COOKIE_HTTPONLY;
//Gets the size of the string builder
if (NativeMethods.InternetGetCookieEx(url, null, null, ref pchCookieData, flag, IntPtr.Zero))
{
pchCookieData++;
var cookieData = new StringBuilder((int)pchCookieData);
//Read the cookie
if (NativeMethods.InternetGetCookieEx(url, null, cookieData, ref pchCookieData, flag, IntPtr.Zero))
{
DemandWebPermission(uri);
return cookieData.ToString();
}
}
var lastErrorCode = 0;
if (throwIfNoCookie || (lastErrorCode != (int)NativeMethods.ErrorFlags.ERROR_NO_MORE_ITEMS))
{
throw new Win32Exception(lastErrorCode);
}
return null;
}
private static void DemandWebPermission(Uri uri)
{
var uriString = UriToString(uri);
if (uri.IsFile)
{
var localPath = uri.LocalPath;
new FileIOPermission(FileIOPermissionAccess.Read, localPath).Demand();
}
else
{
new WebPermission(NetworkAccess.Connect, uriString).Demand();
}
}
private static string UriToString(Uri uri)
{
if (uri == null)
{
throw new ArgumentNullException(nameof(uri));
}
UriComponents components = (uri.IsAbsoluteUri ? UriComponents.AbsoluteUri : UriComponents.SerializationInfoString);
return new StringBuilder(uri.GetComponents(components, UriFormat.SafeUnescaped), 2083).ToString();
}
}
using System;
using System.Runtime.InteropServices;
using System.Security;
using System.Text;
internal sealed class NativeMethods
{
#region enums
public enum ErrorFlags
{
ERROR_INSUFFICIENT_BUFFER = 122,
ERROR_INVALID_PARAMETER = 87,
ERROR_NO_MORE_ITEMS = 259
}
public enum InternetFlags
{
INTERNET_COOKIE_HTTPONLY = 8192, //Requires IE 8 or higher
INTERNET_COOKIE_THIRD_PARTY = 131072,
INTERNET_FLAG_RESTRICTED_ZONE = 16
}
#endregion
#region DLL Imports
[SuppressUnmanagedCodeSecurity, SecurityCritical, DllImport("wininet.dll", EntryPoint = "InternetGetCookieExW", CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true)]
internal static extern bool InternetGetCookieEx([In] string Url, [In] string cookieName, [Out] StringBuilder cookieData, [In, Out] ref uint pchCookieData, uint flags, IntPtr reserved);
#endregion
}使用获取cookie
转载请保留原文链接： https://zodream.cn/blog/id/164.html