private void ReadMailInfo()
{
//读取服务器回送的连接信息
ResponseData data = new ResponseData();
GetResponse(data);
if (CheckResponse(data.responseString) == false)
{
return;
}
//向服务器发送用户名，请求确认
SendToServer("USER " + textBoxUser.Text + "\r\n");
GetResponse(data);
if (CheckResponse(data.responseString) == false)
{
return;
}
//向服务器发送密码，请求确认
SendToServer("PASS " + textBoxPassword.Text + "\r\n");
GetResponse(data);
if (CheckResponse(data.responseString) == false)
{
return;
}
//向服务器发送LIST命令，请求获取邮件总数和总字节数
SendToServer("LIST \r\n");
GetResponse(data);
if (CheckResponse(data.responseString) == false)
{
return;
}
string[] splitString = data.responseString.Split(new string[] { "\r\n" }, StringSplitOptions.None);
//从字符串中取子串获取邮件总数
int count;
string [] strCount = splitString[0].Split(' ');
if (strCount.Length == 3) //返回形如 +ok 1 1521 这种格式
{
count = int.Parse(strCount[1]);
}
else //返回形如 +OK
{
count = splitString.Length - 2;
}
if (splitString.Length < count)
{
return;
}
//判断邮箱中是否有邮件
if (count > 0)
{
ClearListBoxItem(listBoxOperation);
SetGroupBoxText(groupBoxOperation, "信箱中共有 " + count + " 封邮件");
string str;
//向邮件列表框中添加邮件
for (int i = 1; i <= count; i++)
{
if (splitString[i] == "")
{
continue;
}
string[] s = splitString[i].Split(' ');
if (s.Length == 2)
{
str = string.Format("第{0}封：{1}字节", s[0], s[1]);
}
else
{
str = string.Format("第{0}封", s[0]);
}
AddListBoxItem(listBoxOperation, str);
}
}
else
{
SetGroupBoxText(groupBoxOperation, "信箱中没有邮件");
}
SetButtonState(buttonConnect, false);
SetButtonState(buttonDisconnect, true);
}
private void GetResponse(ResponseData data)
{
networkStream.BeginRead(data.bytes, 0, data.bytes.Length, new AsyncCallback(ReadCallBack), data);
waitHandle.WaitOne();
}