default.aspx.cs

这是asp.net^和Visual C++Sharp编写的串并口通讯的书籍 源代码

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Text;
public partial class Default2 : System.Web.UI.Page
{
    public static jmail.POP3Class popMail;
    public static jmail.Message mailMessage;
    public static jmail.Attachments atts;
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    public static string Base64Decode(string str)
    {
        return Encoding.UTF8.GetString(Convert.FromBase64String(str));
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        popMail = new jmail.POP3Class();
        try
        {
            popMail.Connect(this.TxtPopUser.Text.Trim(), this.TxtPopPwd.Text.Trim(), this.TxtPopServer.Text.Trim(), Convert.ToInt32(this.TxtPopPort.Text.Trim()));
            TxtPopPort.Enabled = false;
            TxtPopPwd.Enabled = false;
            TxtPopServer.Enabled = false;
            TxtPopUser.Enabled = false;
            Page.RegisterStartupScript("", "<script>alert('连接成功')</script>");
            Button1.Enabled = false;
            Button2.Enabled = true;
            Button3.Enabled = true;
            Label1.Text = "邮箱内共有邮件" + popMail.Count.ToString() + "封";
        }
        catch
        {
            Page.RegisterStartupScript("", "<script>alert('请检查邮件服务器的设置是否正确')</script>");
        }
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        if (popMail != null)
        {
            if (popMail.Count > 0)
            {
                if (Convert.ToInt32(txtBh.Text) <= popMail.Count && Convert.ToInt32(txtBh.Text) > 0)
                {

                    mailMessage = popMail.Messages[Convert.ToInt32(txtBh.Text)];
                    mailMessage.Charset = "GB2312";
                    mailMessage.Encoding = "Base64";
                    mailMessage.ISOEncodeHeaders = false;
                    txtSendMail.Text = mailMessage.From;
                    txtSubject.Text =Base64Decode(mailMessage.Subject);
                    txtBody.Text =Base64Decode(mailMessage.Body);
                    txtSize.Text = mailMessage.Size.ToString();
                    ReceiveMails(Convert.ToInt32(txtBh.Text));
                }
                else
                {
                    Page.RegisterStartupScript("", "<script>alert('超出邮件数范围')</script>");
                }
            }
            else
            {
                Response.Write("没有新邮件");
            }
        }
        else
        {
            Page.RegisterStartupScript("", "<script>alert('请连接服务器')</script>");
        }
    }
    protected void Button3_Click(object sender, EventArgs e)
    {
        popMail.Disconnect();
        popMail = null;
        TxtPopPort.Enabled = true;
        TxtPopPwd.Enabled = true;
        TxtPopServer.Enabled = true;
        TxtPopUser.Enabled = true;
        Button1.Enabled = true;
        Button2.Enabled = false;
        Button3.Enabled = false;
    }
    private void ReceiveMails(int i)
    {
        jmail.Attachments atts;
        jmail.Attachment att;
        if (popMail.Count >= 1 && i <= popMail.Count)
        {
            LinkButton1.Enabled = true;
            LinkButton1.Text = "附件下载";
            mailMessage = popMail.Messages[i];
            atts = mailMessage.Attachments;
            if (atts.Count >= 1)
            {
                for (int k = 0; k < atts.Count; k++)
                {
                    att = atts[k];
                    string attname = att.Name;
                    try
                    {
                        Random TempNameInt = new Random();
                        string NewMailDirName = TempNameInt.Next(100000000).ToString();
                        Directory.CreateDirectory(System.Web.HttpContext.Current.Server.MapPath(".") + "\\AttachFiles\\" + TxtPopUser.Text + "\\" + NewMailDirName);
                        string mailPath = "\\AttachFiles\\" + TxtPopUser.Text + "\\" + NewMailDirName + "\\" + attname;
                        att.SaveToFile(System.Web.HttpContext.Current.Server.MapPath(".") + mailPath);
                        Session["path"] = Server.MapPath("AttachFiles") + "\\" + TxtPopUser.Text + "\\" + NewMailDirName + "\\" + attname;

                    }
                    catch (Exception ex)
                    {
                        throw new Exception(ex.Message);
                    }
                }
            }
            else
            {
                LinkButton1.Text = "暂时没有附件";
                LinkButton1.Enabled = false;
            }
        }
    }
    protected void LinkButton1_Click(object sender, EventArgs e)
    {
        System.IO.FileInfo fi = new FileInfo(Session["path"].ToString());
        if (fi.Exists)
        {
            Response.Clear();
            Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(fi.Name));
            Response.AddHeader("Content-Length", fi.Length.ToString());
            Response.ContentType = "application/octet-stream";
            Response.Filter.Close();
            Response.WriteFile(fi.FullName);
            Response.End();
        }
    }
}