C# winform 加载网页 模拟键盘输入自动接入访问网络
声明:
本文原创,首发于博客园 http://www.cnblogs.com/EasyInvoice/p/6070563.html 转载请注明出处。
背景:
由于所在办公室网络限制,笔者每天都使用网络都要先连接无线网。如下图,输入授权用户信息登录后才能使用WIFI。
丧心病狂的是该网页Cookie 过期时间为24小时,所以每天重复以下动作:打开浏览器 -> 手动输入 工号密码、密码 -> 点击“登录”按钮。
作为一个懒出天际的程序员,逃避这种重复劳动是必须滴~~
解决方案:
创建一个C# 应用程序,使用WebBrowser控件加载该页面,模拟键盘输入账号、密码,把用户配置分别赋值给两个控件,然后调用按钮的点击事件。
具体步骤:
1. 打开登录页面,按F12查看网页源码,可以看到2个输入控件名分别为 "user", "password",登录按钮名为"Login",如下图:
2. 模拟事件
模拟过程具体又可分为以下4个步骤:
step 1. 读取配置文件中的 登录网址、账号、密码
step 2. 加载网页
step 3. 模拟键盘操作
step 4. 退出程序
关键部分代码
/// <summary> /// 加载网页,模拟登录动作处理 /// </summary> private void ProcessLogin() { // 验证配置文件 if (string.IsNullOrEmpty(url)) { ShowMsg("配置文件错误"); return; } ShowMsg("正在加载登录网页..."); // 加载网页 webBrowser1.Navigate(url); //等待浏览器控件加载完成 while (webBrowser1.ReadyState != WebBrowserReadyState.Complete) { Application.DoEvents(); } ShowMsg("加载完毕!"); //模拟登录事件 LoginSimulation(webBrowser1); }
//模拟登录事件 private void LoginSimulation(WebBrowser wb) { try { ShowMsg(string.Format("账户名:[{0}],输入账户密码...", userName)); ShowMsg(string.Format("请确保配置文件中的用户及登录密码准确可用")); // 网页元素 HtmlDocument doc = wb.Document; HtmlElement emuser = doc.GetElementById("user"); SetHtmlValue(emuser, userName);//设置账户 HtmlElement empassword = doc.GetElementById("password"); SetHtmlValue(empassword, password);//设置密码 HtmlElement btn = doc.GetElementById("Login"); InvokeMethod(btn, "click");//调用 登录按钮的 Click 事件 提交配置 ShowMsg("完成!"); TimeSpan used = DateTime.Now - begin;//用时 ShowMsg(string.Format("用时: {0}.{1}s" , used.Seconds, used.Milliseconds)); ShowMsg("即将自动退出..."); //启动计时器,4s 后自动退出当前程序 Timer timer = new Timer(); timer.Interval = 4000; timer.Tick += new EventHandler(timer_Tick); timer.Start(); } catch (Exception ex) { ShowMsg(ex.Message); } }
编译应用程序,把快捷方式添加到开机启动项。这样开机时就会自动运行程序接入网络啦!!!
不足之处:
1. 接入网络成功后网页会打开如下的页面,因此模拟登录成功后也会启动浏览器打开页面。如果能禁用就更好了。
2. 只能简单地提示模拟操作完成,调用登录按钮事件后没有检测是否登录成功。
关于以上2点不足,如果有人找到解决办法,就请大胆大意地私信笔者或留言吧 ^_^
适用场景:
本应用演示了如何在客户端加载页面并模拟键盘鼠标操作,适用于用户访问许可配置保存于服务器的登录网站,那些配置要保存到 Session(会话)的网站访问 例如 某宝网站登录 就不适用了,除非继续使用应用程序中的 WebBrowser 控件操作而不用外部浏览器。
附 界面全部代码及运行截图
(代码有点乱,将就着看 -_-|||)
后台代码:
using System; using System.IO; using System.Text; using System.Windows.Forms; namespace LoginAssistant { public partial class MainForm : Form { public MainForm() { InitializeComponent(); readConfigFile(); ProcessLogin(); } /// <summary> /// 加载网页,模拟登录动作处理 /// </summary> private void ProcessLogin() { // 验证配置文件 if (string.IsNullOrEmpty(url)) { ShowMsg("配置文件错误"); return; } ShowMsg("正在加载登录网页..."); // 加载网页 webBrowser1.Navigate(url); //等待浏览器控件加载完成 while (webBrowser1.ReadyState != WebBrowserReadyState.Complete) { Application.DoEvents(); } ShowMsg("加载完毕!"); //模拟登录事件 LoginSimulation(webBrowser1); } //模拟登录事件 private void LoginSimulation(WebBrowser wb) { try { ShowMsg(string.Format("账户名:[{0}],输入账户密码...", userName)); ShowMsg(string.Format("请确保配置文件中的用户及登录密码准确可用")); // 网页元素 HtmlDocument doc = wb.Document; HtmlElement emuser = doc.GetElementById("user"); SetHtmlValue(emuser, userName);//设置账户 HtmlElement empassword = doc.GetElementById("password"); SetHtmlValue(empassword, password);//设置密码 HtmlElement btn = doc.GetElementById("Login"); InvokeMethod(btn, "click");//调用 登录按钮的 Click 事件 提交配置 ShowMsg("完成!"); TimeSpan used = DateTime.Now - begin;//用时 ShowMsg(string.Format("用时: {0}.{1}s" , used.Seconds, used.Milliseconds)); ShowMsg("即将自动退出..."); //启动计时器,4s 后自动退出当前程序 Timer timer = new Timer(); timer.Interval = 4000; timer.Tick += new EventHandler(timer_Tick); timer.Start(); } catch (Exception ex) { ShowMsg(ex.Message); } } //自动退出 void timer_Tick(object sender, EventArgs e) { this.Close(); } /// <summary> /// 调用 Html 元素的方法 /// </summary> /// <param name="em"></param> /// <param name="methodname"></param> private void InvokeMethod(HtmlElement em, string methodname) { if (em == null) return; object response = em.InvokeMember(methodname); //触发submit事件 } //赋值于 Html 元素 private void SetHtmlValue(HtmlElement em, string valueStr) { if (em == null) return; em.SetAttribute("value", valueStr); } //读取配置文件 private void readConfigFile() { try { if(!File.Exists(fileName))return; using (FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read)) { StreamReader m_streamReader = new StreamReader(fs); m_streamReader.BaseStream.Seek(0, SeekOrigin.Begin); string strLine = m_streamReader.ReadLine(); while (strLine != null) { string[] data = strLine.Split('='); switch (data[0]) { case "user": userName = getValue(data); break; case "password": password = getValue(data); break; case "url": url = getValue(data); break; default: break; } strLine = m_streamReader.ReadLine(); } m_streamReader.Close(); fs.Close(); } } catch (Exception ex) { ShowMsg(ex.Message); } } /// <summary> /// 获取取配置文件节点值 /// </summary> /// <param name="arrays"></param> /// <returns></returns> private string getValue(string[] arrays) { StringBuilder sb = new StringBuilder(); sb.Append(arrays[1]); for (int i = 2; i < arrays.Length; i++) { sb.Append("=" + arrays[i]); } return sb.ToString(); } /// <summary> /// 显示信息 /// </summary> /// <param name="p"></param> private void ShowMsg(string p) { rtbStatus.AppendText(string.Format("[{0}] {1}\r\n",DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff"), p)); } #region variables //账号、密码 private string userName = "allliangkaiyu"; // default private string password = "vicky"; private string url = string.Empty; //登录页面 string fileName = "WirelessAssistantConfig.ini"; //配置文件名 WebBrowser webBrowser1 = new WebBrowser();//浏览器控件 private DateTime begin = DateTime.Now;//当前时刻 #endregion #region 按钮事件 //登录 private void btnRegister_Click(object sender, EventArgs e) { ProcessLogin(); } //退出 private void btnExit_Click(object sender, EventArgs e) { this.Close(); } #endregion } }
designer.cs 代码:
namespace LoginAssistant { partial class MainForm { /// <summary> /// Required designer variable. /// </summary> private System.ComponentModel.IContainer components = null; /// <summary> /// Clean up any resources being used. /// </summary> /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param> protected override void Dispose(bool disposing) { if (disposing && (components != null)) { components.Dispose(); } base.Dispose(disposing); } #region Windows Form Designer generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InitializeComponent() { System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(MainForm)); this.btnInput = new System.Windows.Forms.Button(); this.rtbStatus = new System.Windows.Forms.RichTextBox(); this.btnExit = new System.Windows.Forms.Button(); this.SuspendLayout(); // // btnInput // this.btnInput.Font = new System.Drawing.Font("Consolas", 10F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(134))); this.btnInput.Location = new System.Drawing.Point(46, 235); this.btnInput.Margin = new System.Windows.Forms.Padding(4, 3, 4, 3); this.btnInput.Name = "btnInput"; this.btnInput.Size = new System.Drawing.Size(86, 36); this.btnInput.TabIndex = 0; this.btnInput.Text = "重新登录"; this.btnInput.UseVisualStyleBackColor = true; this.btnInput.Click += new System.EventHandler(this.btnRegister_Click); // // rtbStatus // this.rtbStatus.BackColor = System.Drawing.SystemColors.Control; this.rtbStatus.Dock = System.Windows.Forms.DockStyle.Top; this.rtbStatus.Location = new System.Drawing.Point(0, 0); this.rtbStatus.Margin = new System.Windows.Forms.Padding(4, 3, 4, 3); this.rtbStatus.Name = "rtbStatus"; this.rtbStatus.Size = new System.Drawing.Size(322, 229); this.rtbStatus.TabIndex = 1; this.rtbStatus.Text = ""; // // btnExit // this.btnExit.Font = new System.Drawing.Font("Consolas", 10F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(134))); this.btnExit.ForeColor = System.Drawing.Color.Red; this.btnExit.Location = new System.Drawing.Point(150, 235); this.btnExit.Name = "btnExit"; this.btnExit.Size = new System.Drawing.Size(75, 36); this.btnExit.TabIndex = 2; this.btnExit.Text = "退出"; this.btnExit.UseVisualStyleBackColor = true; this.btnExit.Click += new System.EventHandler(this.btnExit_Click); // // MainForm // this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 13F); this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.ClientSize = new System.Drawing.Size(322, 274); this.Controls.Add(this.btnExit); this.Controls.Add(this.rtbStatus); this.Controls.Add(this.btnInput); this.Font = new System.Drawing.Font("Consolas", 10F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134))); this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon"))); this.Margin = new System.Windows.Forms.Padding(4, 3, 4, 3); this.Name = "MainForm"; this.Text = "无线网络助手 V20160908© vicky"; this.ResumeLayout(false); } #endregion private System.Windows.Forms.Button btnInput; private System.Windows.Forms.RichTextBox rtbStatus; private System.Windows.Forms.Button btnExit; } }
运行截图