发送邮件

来源：互联网发布：sql取前几个字符编辑：程序博客网时间：2024/06/10 14:15
图1  “发送邮件”窗体       图2  提示信息using System.Web.Mail;using System.IO;using System.Net;private void button1_Click(object sender, EventArgs e){    try    {        System.Web.Mail.MailMessage mail = new System.Web.Mail.MailMessage();        mail.From = txtFrom.Text.Trim();        mail.To = txtGet.Text.Trim();        mail.Subject = Base64Encode(txtSubject.Text);           mail.Body = Base64Encode(richTextBox1.Text);           mail.BodyFormat = MailFormat.Text;           SmtpMail.SmtpServer = txtServer.Text.Trim();           SmtpMail.Send(mail);           MessageBox.Show("邮件成功发送到" + txtGet.Text);       }       catch (Exception ex)       {           MessageBox.Show(ex.ToString());       }}          注意：MailMessage类还提供群发功能以及发送附件（通过Attachments类）的功能。using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms; using System.Net.Mail;using System.IO;using System.Net;using System.Web.Mail; namespace Ex16_08{    public partial class Send_mal : Form    {        public Send_mal()        {            InitializeComponent();        }         private void Form1_Load(object sender, EventArgs e)        {                    }        public static string Base64Encode(string str)        {            return Convert.ToBase64String(Encoding.UTF8.GetBytes(str));        }        private void button1_Click(object sender, EventArgs e)        {            try            {                System.Web.Mail.MailMessage mail = new System.Web.Mail.MailMessage();                mail.From = txtFrom.Text.Trim();                mail.To = txtGet.Text.Trim();                mail.Subject = Base64Encode(txtSubject.Text);                mail.Body = Base64Encode(richTextBox1.Text);                mail.BodyFormat = MailFormat.Text;                SmtpMail.SmtpServer = txtServer.Text.Trim();                SmtpMail.Send(mail);                MessageBox.Show("邮件成功发送到" + txtGet.Text);            }            catch (Exception ex)            {                MessageBox.Show(ex.ToString());            }        }    }}namespace Ex16_08{    partial class Send_mal    {        /// <summary>        /// 必需的设计器变量。        /// </summary>        private System.ComponentModel.IContainer components = null;         /// <summary>        /// 清理所有正在使用的资源。        /// </summary>        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>        protected override void Dispose(bool disposing)        {            if (disposing && (components != null))            {                components.Dispose();            }            base.Dispose(disposing);        }         #region Windows 窗体设计器生成的代码         /// <summary>        /// 设计器支持所需的方法 - 不要        /// 使用代码编辑器修改此方法的内容。        /// </summary>        private void InitializeComponent()        {            this.button1 = new System.Windows.Forms.Button();            this.txtFrom = new System.Windows.Forms.TextBox();            this.txtGet = new System.Windows.Forms.TextBox();            this.txtSubject = new System.Windows.Forms.TextBox();            this.label1 = new System.Windows.Forms.Label();            this.label2 = new System.Windows.Forms.Label();            this.label3 = new System.Windows.Forms.Label();            this.richTextBox1 = new System.Windows.Forms.RichTextBox();            this.label4 = new System.Windows.Forms.Label();            this.txtServer = new System.Windows.Forms.TextBox();            this.SuspendLayout();            //             // button1            //             this.button1.Location = new System.Drawing.Point(286, 94);            this.button1.Name = "button1";            this.button1.Size = new System.Drawing.Size(75, 23);            this.button1.TabIndex = 0;            this.button1.Text = "发送";            this.button1.UseVisualStyleBackColor = true;            this.button1.Click += new System.EventHandler(this.button1_Click);            //             // txtFrom            //             this.txtFrom.Location = new System.Drawing.Point(67, 39);            this.txtFrom.Name = "txtFrom";            this.txtFrom.Size = new System.Drawing.Size(294, 21);            this.txtFrom.TabIndex = 1;            //             // txtGet            //             this.txtGet.Location = new System.Drawing.Point(67, 67);            this.txtGet.Name = "txtGet";            this.txtGet.Size = new System.Drawing.Size(294, 21);            this.txtGet.TabIndex = 2;            //             // txtSubject            //             this.txtSubject.Location = new System.Drawing.Point(67, 94);            this.txtSubject.Name = "txtSubject";            this.txtSubject.Size = new System.Drawing.Size(215, 21);            this.txtSubject.TabIndex = 3;            //             // label1            //             this.label1.AutoSize = true;            this.label1.Location = new System.Drawing.Point(8, 70);            this.label1.Name = "label1";            this.label1.Size = new System.Drawing.Size(53, 12);            this.label1.TabIndex = 4;            this.label1.Text = "收件人：";            //             // label2            //             this.label2.AutoSize = true;            this.label2.Location = new System.Drawing.Point(8, 42);            this.label2.Name = "label2";            this.label2.Size = new System.Drawing.Size(53, 12);            this.label2.TabIndex = 5;            this.label2.Text = "发件人：";            //             // label3            //             this.label3.AutoSize = true;            this.label3.Location = new System.Drawing.Point(20, 97);            this.label3.Name = "label3";            this.label3.Size = new System.Drawing.Size(41, 12);            this.label3.TabIndex = 6;            this.label3.Text = "主题：";            //             // richTextBox1            //             this.richTextBox1.Location = new System.Drawing.Point(4, 121);            this.richTextBox1.Name = "richTextBox1";            this.richTextBox1.Size = new System.Drawing.Size(357, 155);            this.richTextBox1.TabIndex = 7;            this.richTextBox1.Text = "";            //             // label4            //             this.label4.AutoSize = true;            this.label4.Location = new System.Drawing.Point(8, 16);            this.label4.Name = "label4";            this.label4.Size = new System.Drawing.Size(53, 12);            this.label4.TabIndex = 8;            this.label4.Text = "服务器：";            //             // txtServer            //             this.txtServer.Location = new System.Drawing.Point(67, 13);            this.txtServer.Name = "txtServer";            this.txtServer.Size = new System.Drawing.Size(294, 21);            this.txtServer.TabIndex = 9;            //             // Send_mal            //             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;            this.ClientSize = new System.Drawing.Size(364, 284);            this.Controls.Add(this.txtServer);            this.Controls.Add(this.label4);            this.Controls.Add(this.richTextBox1);            this.Controls.Add(this.label3);            this.Controls.Add(this.label2);            this.Controls.Add(this.label1);            this.Controls.Add(this.txtSubject);            this.Controls.Add(this.txtGet);            this.Controls.Add(this.txtFrom);            this.Controls.Add(this.button1);            this.Name = "Send_mal";            this.Text = "sendMail";            this.Load += new System.EventHandler(this.Form1_Load);            this.ResumeLayout(false);            this.PerformLayout();         }         #endregion         private System.Windows.Forms.Button button1;        private System.Windows.Forms.TextBox txtFrom;        private System.Windows.Forms.TextBox txtGet;        private System.Windows.Forms.TextBox txtSubject;        private System.Windows.Forms.Label label1;        private System.Windows.Forms.Label label2;        private System.Windows.Forms.Label label3;        private System.Windows.Forms.RichTextBox richTextBox1;        private System.Windows.Forms.Label label4;        private System.Windows.Forms.TextBox txtServer;    }} using System;using System.Collections.Generic;using System.Windows.Forms; namespace Ex16_08{    static class Program    {        /// <summary>        /// 应用程序的主入口点。        /// </summary>        [STAThread]        static void Main()        {            Application.EnableVisualStyles();            Application.SetCompatibleTextRenderingDefault(false);            Application.Run(new Send_mal());        }    }}
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