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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace _07Client
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
Socket socketSend;
private void btnStart_Click(object sender, EventArgs e)
{
try
{
//创建负责通信的Socket
socketSend = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPAddress ip = IPAddress.Parse(txtServer.Text);
IPEndPoint point = new IPEndPoint(ip, Convert.ToInt32(txtPort.Text));
//获得要连接的远程服务器应用程序的IP地址和端口号
socketSend.Connect(point);
ShowMsg("连接成功");
//开启一个新的线程不停的接收服务端发来的消息
Thread th = new Thread(Recive);
th.IsBackground = true;
th.Start();
}
catch
{ }
}
/// <summary>
/// 不停的接受服务器发来的消息
/// </summary>
void Recive()
{
while (true)
{
try
{
byte[] buffer = new byte[1024 * 1024 * 3];
int r = socketSend.Receive(buffer);
//实际接收到的有效字节数
if (r == 0)
{
break;
}
//表示发送的文字消息
if (buffer[0] == 0)
{
string s = Encoding.UTF8.GetString(buffer, 1, r-1);
ShowMsg(socketSend.RemoteEndPoint + ":" + s);
}
else if (buffer[0] == 1)
{
SaveFileDialog sfd = new SaveFileDialog();
sfd.InitialDirectory = @"C:\Users\SpringRain\Desktop";
sfd.Title = "请选择要保存的文件";
sfd.Filter = "所有文件|*.*";
sfd.ShowDialog(this);
string path = sfd.FileName;
using (FileStream fsWrite = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write))
{
fsWrite.Write(buffer, 1, r - 1);
}
MessageBox.Show("保存成功");
}
else if (buffer[0] == 2)
{
ZD();
}
}
catch { }
}
}
/// <summary>
/// 震动
/// </summary>
void ZD()
{
for (int i = 0; i < 500; i++)
{
this.Location = new Point(200, 200);
this.Location = new Point(280, 280);
}
}
void ShowMsg(string str)
{
txtLog.AppendText(str + "\r\n");
}
/// <summary>
/// 客户端给服务器发送消息
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnSend_Click(object sender, EventArgs e)
{
string str = txtMsg.Text.Trim();
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(str);
socketSend.Send(buffer);
}
private void Form1_Load(object sender, EventArgs e)
{
Control.CheckForIllegalCrossThreadCalls = false;
}
}
}
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