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이전에 이전 게시물 (참조 : 하이퍼 링크)을 참조하고 있습니다. 나는 어떤 의견을 더할 수 없었고, 내 문제가 약간 다르기 때문에 답장을 쓰는 것도 고려하지 않았다. 잘못된 섹션에 게시하거나이 주제에 대한 새 스레드를 여는 경우,이 포럼에 아직 미흡합니다.VB.Net에서 IMAP을 사용하여 MS Exchange Server에서 메일을 검색합니다.
다음 문제를 설명해 드리겠습니다. post과 유사하게 MS Exchange Server에서 전자 메일 및 첨부 파일에 액세스하여 검색하고 싶습니다. 위의 하이퍼 링크에서 제공 한 코드를 주로 사용했지만 메일 서버 (포트 587 사용)에 연결할 수 없습니다. 제 생각에는이 성공적으로 연결했지만, 데이터 스트림이 읽을 수없는 것을 말하는 다음 줄
Dim Read_Stream2 = New StreamReader(Sstream)
에 도달 할 때 코드가 중지됩니다.
NetworkStream을 SslStream으로 변환 한 다음 StreamReader 개체로 변환해야하는 이유를 알 수 없으므로이 특정 줄에 대한 질문이 있습니다. 누군가이 필요성을 설명해 주시겠습니까?
나머지 문제는 아래까지 제 코드를 고려하십시오. IMAP을 사용하는 것이 너무 번거롭다면 POP3를 사용하여이 목표를 달성하는 방법에 대한 힌트를 환영합니다. 제공되는 도움말에 대해 미리 감사드립니다.
Imports System.Net.Sockets
Imports System.IO
Imports System.Text
Imports System.Net.Security
Public Class emailDownloader
Dim ServerNm As String
Dim UsrNm As String
Dim PassStr As String
Dim _IntPort As Integer
Dim ImapClient As New Net.Sockets.TcpClient
Dim NetworkS_stream As NetworkStream
Dim m_sslStream As SslStream
Dim Read_Stream As StreamReader
Dim StatResp As String
Dim m_buffer() As Byte
Function Login(ByVal Sstream As SslStream, ByVal Server_Command As String)
ImapClient = New TcpClient(ServerNm, _IntPort)
NetworkS_stream = ImapClient.GetStream 'Read the stream
Sstream = New SslStream(NetworkS_stream)
Dim Read_Stream2 = New StreamReader(Sstream)
Server_Command = Server_Command ' + vbCrLf
m_buffer = System.Text.Encoding.ASCII.GetBytes(Server_Command.ToCharArray())
Sstream.Write(m_buffer, 0, m_buffer.Length)
Dim Server_Reponse As String
Server_Reponse = Read_Stream2.ReadLine()
Return Server_Reponse
End Function
Private Sub btnStart_Click(sender As System.Object, e As System.EventArgs) Handles btnStart.Click
lbMailsRetrieved.Items.Clear()
ServerNm = tbServerName.Text
_IntPort = tbPortName.Text
UsrNm = tbUserName.Text
PassStr = tbPasswort.Text
StatResp = Login(m_sslStream, "LOGIN " + UsrNm + " " + PassStr + " ") & vbCrLf
lbMailsRetrieved.Items.Add(StatResp)
End Sub
최종 클래스
here을 찾을 수 있습니다 처음에 C#으로 프로그래밍 된 솔루션이 있었다. 코드를 조금 수정했고 교환을 위해 노력하고 있습니다. 처음에 설명 된 문제를 들어
Imports Microsoft.Exchange.WebServices.Data
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
Imports System.Linq
Imports System.Net.Sockets
Imports System.Text
Imports System.Threading.Tasks
Imports System.Windows.Forms
Namespace ReadMailFromExchangeServer
Public Class Form1
Inherits Form
Private exchange As ExchangeService
Public Sub New()
InitializeComponent()
lstMsg.Clear()
lstMsg.View = View.Details
lstMsg.Columns.Add("Date", 150)
lstMsg.Columns.Add("From", 250)
lstMsg.Columns.Add("Subject", 400)
lstMsg.Columns.Add("Has Attachment", 50)
lstMsg.Columns.Add("Id", 100)
lstMsg.FullRowSelect = True
End Sub
Private Sub btnRead_Click(sender As Object, e As EventArgs) Handles btnRead.Click
ConnectToExchangeServer()
'Dim ts As New TimeSpan(0, -1, 0, 0)
'Dim [date] As DateTime = DateTime.Now.Add(ts)
'Dim filter As New SearchFilter.IsGreaterThanOrEqualTo(ItemSchema.DateTimeReceived, [date])
If exchange IsNot Nothing Then
Dim findResults As FindItemsResults(Of Item) = exchange.FindItems(WellKnownFolderName.Inbox, New ItemView(50))
'Original
'Dim findResults As FindItemsResults(Of Item) = exchange.FindItems(WellKnownFolderName.Inbox, filter, New ItemView(50))
For Each item As Item In findResults
Dim message As EmailMessage = EmailMessage.Bind(exchange, item.Id)
Dim listItem As New ListViewItem({message.DateTimeReceived.ToString(), _
message.From.Name.ToString() + _
"(" + message.From.Address.ToString() + ")", _
message.Subject, (If((message.HasAttachments), "Yes", "No")), _
message.Id.ToString()})
lstMsg.Items.Add(listItem)
Next
If findResults.Items.Count <= 0 Then
lstMsg.Items.Add("No Messages found!!")
End If
End If
End Sub
Public Sub ConnectToExchangeServer()
lblMsg.Text = "Connecting to Exchange Server.."
lblMsg.Refresh()
Try
exchange = New ExchangeService(ExchangeVersion.Exchange2007_SP1)
exchange.Credentials = New WebCredentials("abc", "xyz")
exchange.AutodiscoverUrl("efg")
lblMsg.Text = "Connected to Exchange Server : " + exchange.Url.Host
lblMsg.Refresh()
Catch ex As Exception
lblMsg.Text = "Error Connecting to Exchange Server!!" + ex.Message
lblMsg.Refresh()
End Try
End Sub
Private Sub btnLoadAttachment_Click(sender As Object, e As EventArgs) Handles btnLoadAttachment.Click
If exchange IsNot Nothing Then
If lstMsg.Items.Count > 0 Then
Dim item As ListViewItem = lstMsg.SelectedItems(0)
If item IsNot Nothing Then
Dim msgid As String = item.SubItems(4).Text.ToString()
Dim message As EmailMessage = EmailMessage.Bind(exchange, New ItemId(msgid))
If message.HasAttachments AndAlso TypeOf message.Attachments(0) Is FileAttachment Then
Dim fileAttachment As FileAttachment = TryCast(message.Attachments(0), FileAttachment)
'Change the below Path
fileAttachment.Load("C:[my_path]" + fileAttachment.Name)
lblAttach.Text = "Attachment Downloaded : " + fileAttachment.Name
Else
MessageBox.Show("No Attachments found!!")
End If
Else
MessageBox.Show("Please select a Message!!")
End If
Else
MessageBox.Show("Messages not loaded!!")
End If
Else
MessageBox.Show("Not Connected to Mail Server!!")
End If
End Sub
Private Sub Form1_Load(sender As Object, e As EventArgs)
End Sub
Private Sub InitializeComponent()
Me.btnRead = New System.Windows.Forms.Button()
Me.lstMsg = New System.Windows.Forms.ListView()
Me.btnLoadAttachment = New System.Windows.Forms.Button()
Me.lblMsg = New System.Windows.Forms.Label()
Me.label1 = New System.Windows.Forms.Label()
Me.lblAttach = New System.Windows.Forms.Label()
Me.SuspendLayout()
'
'btnRead
'
Me.btnRead.BackgroundImageLayout = System.Windows.Forms.ImageLayout.None
Me.btnRead.FlatStyle = System.Windows.Forms.FlatStyle.Flat
Me.btnRead.Location = New System.Drawing.Point(39, 284)
Me.btnRead.Name = "btnRead"
Me.btnRead.Size = New System.Drawing.Size(174, 23)
Me.btnRead.TabIndex = 0
Me.btnRead.Text = "Read Mails"
Me.btnRead.UseVisualStyleBackColor = True
'
'lstMsg
'
Me.lstMsg.Location = New System.Drawing.Point(27, 70)
Me.lstMsg.Name = "lstMsg"
Me.lstMsg.Size = New System.Drawing.Size(664, 191)
Me.lstMsg.TabIndex = 1
Me.lstMsg.UseCompatibleStateImageBehavior = False
'
'btnLoadAttachment
'
Me.btnLoadAttachment.FlatStyle = System.Windows.Forms.FlatStyle.System
Me.btnLoadAttachment.Location = New System.Drawing.Point(517, 284)
Me.btnLoadAttachment.Name = "btnLoadAttachment"
Me.btnLoadAttachment.Size = New System.Drawing.Size(174, 23)
Me.btnLoadAttachment.TabIndex = 2
Me.btnLoadAttachment.Text = "Load Attachments"
Me.btnLoadAttachment.UseVisualStyleBackColor = True
'
'lblMsg
'
Me.lblMsg.AutoSize = True
Me.lblMsg.Location = New System.Drawing.Point(36, 361)
Me.lblMsg.Name = "lblMsg"
Me.lblMsg.Size = New System.Drawing.Size(38, 13)
Me.lblMsg.TabIndex = 3
Me.lblMsg.Text = "Ready"
'
'label1
'
Me.label1.AutoSize = True
Me.label1.Location = New System.Drawing.Point(24, 54)
Me.label1.Name = "label1"
Me.label1.Size = New System.Drawing.Size(82, 13)
Me.label1.TabIndex = 4
Me.label1.Text = "Today's Messages"
'
'lblAttach
'
Me.lblAttach.AutoSize = True
Me.lblAttach.Location = New System.Drawing.Point(514, 361)
Me.lblAttach.Name = "lblAttach"
Me.lblAttach.Size = New System.Drawing.Size(148, 13)
Me.lblAttach.TabIndex = 5
Me.lblAttach.Text = "No attachmment downloaded"
'
'Form1
'
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(812, 591)
Me.Controls.Add(Me.lblAttach)
Me.Controls.Add(Me.label1)
Me.Controls.Add(Me.lblMsg)
Me.Controls.Add(Me.btnLoadAttachment)
Me.Controls.Add(Me.lstMsg)
Me.Controls.Add(Me.btnRead)
Me.Name = "Form1"
Me.Text = "Form1"
Me.ResumeLayout(False)
Me.PerformLayout()
End Sub
Friend WithEvents btnRead As System.Windows.Forms.Button
Friend WithEvents lstMsg As System.Windows.Forms.ListView
Friend WithEvents btnLoadAttachment As System.Windows.Forms.Button
Friend WithEvents lblMsg As System.Windows.Forms.Label
Friend WithEvents label1 As System.Windows.Forms.Label
Friend WithEvents lblAttach As System.Windows.Forms.Label
End Class
최종 네임
위의 코드는 IMAP을 사용하지 않지만 작업이 완료되었다고 언급하는 것을 잊어 버렸습니다. – Sasquatch