【转】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