看了好些偏这类文章，但很多都是远古世界的代码，已经跑不通了，写个随笔，帮后面的人跳坑。
先上效果，界面丑不要在意这些细节
示例：简单粗暴，直接三二一上代码
一、HTML代码
<!DOCTYPE html>
<html style="overflow: hidden;">
<head>
<title></title>
<link type="text/css" href="../Content/css/framework-font.css" rel="stylesheet">
<!-- jQuery相关引用 -->
<script type="text/javascript" src="https://cdn.staticfile.org/jquery/3.4.0/jquery.min.js"></script>
<script type="text/javascript" src="https://cdn.staticfile.org/jquery-cookie/1.4.1/jquery.cookie.min.js"></script>
</head>
<body >
<div>
<button onclick="test1()">测试弹出框</button>
<button onclick="test2()">读取身份证信息</button>
<button id="btn_play">播放</button>
身份证信息<textarea id="idcardmsg"></textarea>
</div>
<script>
function test1() {
bound.showAlertMsg("我是来自HTML的消息");
}
function test2() {
var result = bound.readIdCard();
$("#idcardmsg").val(result);
}
function GetCef() {
//控制台打印数据，验证一下
console.log(bound.getSrc());
return bound.getSrc();
}
$(function () {
$("#btn_play").click(function () {
var txt = GetCef();
console.log("button.play---" + txt);
alert(txt);
});
});
</script>
</body>
</html>
本地测试HTML文件的可以放在程序根目录下
String page = string.Format(@"{0}\TestDemo.html", Application.StartupPath);方便测试
二、C# 的Form代码
1 using CefSharp;
2 using CefSharp.WinForms;
3 using System;
4 using System.Collections.Generic;
5 using System.ComponentModel;
6 using System.Data;
7 using System.Drawing;
8 using System.IO;
9 using System.Linq;
10 using System.Text;
11 using System.Threading.Tasks;
12 using System.Windows.Forms;
13
14 namespace WindowsFormsApp1
15 {
16 public partial class Form1 : Form
17 {
18 19
20 public Form1()
21 {
22 InitializeComponent();
23 InitializeChromium();
24 }
25
26 private void Form1_Load(object sender, EventArgs e)
27 {
28
29 }
30
31
32 /// <summary>
33 /// 初始化浏览器并启动
34 /// </summary>
35 public void InitializeChromium()
36 {
37 CefSettings settings = new CefSettings();
38 String page = string.Format(@"{0}\TestDemo.html", Application.StartupPath);
39
40 if (!File.Exists(page))
41 {
42 MessageBox.Show("地址不对，我找不到");
43 }
44
45 // Initialize cef with the provided settings
46 Cef.Initialize(settings);
47 // Create a browser component
48
49 chromiumWebBrowser1.LoadUrl(page);
50 chromiumWebBrowser1.MenuHandler = new MenuHandler();
51
52 //需要添加此句代码，否则下面执行会报错
53 chromiumWebBrowser1.JavascriptObjectRepository.Settings.LegacyBindingEnabled = true;
54 CefSharpSettings.WcfEnabled = true;
55 chromiumWebBrowser1.JavascriptObjectRepository.Register("bound", new CefCustomObject(chromiumWebBrowser1, this), isAsync: false, options: BindingOptions.DefaultBinder);
61
// Allow the use of local resources in the browser
62 BrowserSettings browserSettings = new BrowserSettings();
63 chromiumWebBrowser1.BrowserSettings = browserSettings;
64
65 }
66
67
68 /// <summary>
69 /// 关闭窗口时释放浏览器资源
70 /// </summary>
71 /// <param name="sender"></param>
72 /// <param name="e"></param>
73 private void Form1_FormClosing(object sender, FormClosingEventArgs e)
74 {
75 // 关闭时注销释放内核
76 try
77 {
78 chromiumWebBrowser1.CloseDevTools();
79 chromiumWebBrowser1.GetBrowser().CloseBrowser(true);
80 }
81 catch { }
82
83 try
84 {
85 if (chromiumWebBrowser1 != null)
86 {
87 chromiumWebBrowser1.Dispose();
88 Cef.Shutdown();
89 }
90 }
91 catch { }
92 }
93 }
94 }
三、要注册的 CefCustomObject 类
1 using CefSharp.WinForms;
2 using CefSharp;
3 using System;
4 using System.Collections.Generic;
5 using System.Linq;
6 using System.Text;
7 using System.Threading.Tasks;
8 using System.Windows.Forms;
9 using System.Security.Policy;
10
11 namespace WindowsFormsApp1
12 {
13 public class CefCustomObject
14 {
15 // Declare a local instance of chromium and the main form in order to execute things from here in the main thread
16 private static ChromiumWebBrowser _instanceBrowser = null;
17 // The form class needs to be changed according to yours
18 private static Form1 _instanceMainForm = null;
19
20 TextBox url;
21 public CefCustomObject(ChromiumWebBrowser originalBrowser, Form1 mainForm)
22 {
23 _instanceBrowser = originalBrowser;
24 _instanceMainForm = mainForm;
25 }
26
27 /// <summary>
28 /// 窗口加载完毕时需要触发的全局JS对象；
29 /// </summary>
30 public void OnFrameLoadEnd(object sender, FrameLoadEndEventArgs e)
31 {
32 if (e.Frame.IsMain)
33 {
34 _instanceBrowser.ExecuteScriptAsync(@"
35 document.body.onmouseup = function()
36 {
37 bound.onSelected(window.getSelection().toString());
38 }
39 ");
40 }
41 }
42
43 /// <summary>
44 /// 显示一个弹出对话框,前端JS调用的方法
45 /// </summary>
46 /// <param name="msg">传入参数</param>
47 public void ShowAlertMsg(string msg)
48 {
49 MessageBox.Show("The user selected some text [" + msg + "]");
50 }
51
52 public string getSrc()
53 {
54 return "反手给你个string";
55 }
56
57 public string ReadIdCard()
58 {
59 // 具体调用读身份证读卡器的方法
60 // IDCardModel model=IDCardSdk.Read();
61 //将身份证信息返回给前端；
62 // return model.ToJson();
63 return "调用失败";
64 }
65 }
66 }
CefSharp版本,安装的话直接在NuGet就好了，也非常快
也没啥的了，除了版本问题可能遇到的坑，都没难点的
标签：CefSharp,string,C#,chromiumWebBrowser1,System,JS,using,public From： https://www.cnblogs.com/zengyanju/p/18602592