使用Socket传送文件!
1 同事在他负责的项目中想使用Socket传送文件,我就写了一个测试的程序.
2 为了简单起见,测试里没有用多线程和异步方式.只是能把文件传过去.呵呵.代码如下:
3 服务器端:
4 using System;
5 using System.Drawing;
6 using System.Collections;
7 using System.ComponentModel;
8 using System.Windows.Forms;
9 using System.Data;
10 using System.Net.Sockets;
11 using System.Net;
12 namespace TransmitFileServer {
13
14 public class Form1 : System.Windows.Forms.Form {
15 private const string CMDGETFILE="GetTestFile";
16
17 private System.Net.Sockets.TcpListener listener=null;
18 private System.Windows.Forms.Button btnListen;
19 private System.Windows.Forms.Label label1;
20 private System.Windows.Forms.TextBox txtStatus;
21
22 private System.ComponentModel.Container components = null;
23
24 public Form1() {
25
26 InitializeComponent();
27
28 string hostname=Dns.GetHostName(); //获得主机名
29 IPHostEntry entry=Dns.Resolve(hostname); //通过主机名得到IP列表
30 IPEndPoint point=new IPEndPoint(entry.AddressList[0],10000); //用第0个IP和10000端口实例化IPEndPoint
31
32 listener=new TcpListener(point); //也可以用其它的构造函数
33 }
34
35 protected override void Dispose( bool disposing ) {
36 if( disposing ) {
37 if (components != null) {
38 components.Dispose();
39 }
40 }
41 base.Dispose( disposing );
42 }
43
44 #region Windows 窗体设计器生成的代码
45 /// <summary>
46 /// 设计器支持所需的方法 - 不要使用代码编辑器修改
47 /// 此方法的内容。
48 /// </summary>
49 private void InitializeComponent() {
50 this.btnListen = new System.Windows.Forms.Button();
51 this.label1 = new System.Windows.Forms.Label();
52 this.txtStatus = new System.Windows.Forms.TextBox();
53 this.SuspendLayout();
54 //
55 // btnListen
56 //
57 this.btnListen.Location = new System.Drawing.Point(48, 159);
58 this.btnListen.Name = "btnListen";
59 this.btnListen.Size = new System.Drawing.Size(88, 32);
60 this.btnListen.TabIndex = 0;
61 this.btnListen.Text = "开始侦听";
62 this.btnListen.Click += new System.EventHandler(this.btnListen_Click);
63 //
64 // label1
65 //
66 this.label1.AutoSize = true;
67 this.label1.Location = new System.Drawing.Point(8, 16);
68 this.label1.Name = "label1";
69 this.label1.Size = new System.Drawing.Size(35, 17);
70 this.label1.TabIndex = 1;
71 this.label1.Text = "状态:";
72 //
73 // txtStatus
74 //
75 this.txtStatus.Location = new System.Drawing.Point(54, 12);
76 this.txtStatus.Multiline = true;
77 this.txtStatus.Name = "txtStatus";
78 this.txtStatus.Size = new System.Drawing.Size(309, 120);
79 this.txtStatus.TabIndex = 2;
80 this.txtStatus.Text = "";
81 //
82 // Form1
83 //
84 this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
85 this.ClientSize = new System.Drawing.Size(384, 205);
86 this.Controls.Add(this.txtStatus);
87 this.Controls.Add(this.label1);
88 this.Controls.Add(this.btnListen);
89 this.Name = "Form1";
90 this.Text = "Server";
91 this.ResumeLayout(false);
92
93 }
94 #endregion
95
96
97 [STAThread]
98 static void Main() {
99 Application.Run(new Form1());
100 }
101
102 private void btnListen_Click(object sender, System.EventArgs e) {
103 try {
104 this.txtStatus.Text=string.Format("服务器正监听的IP为:{0},端口为:{1}",
105 ((IPEndPoint)listener.LocalEndpoint).Address,((IPEndPoint)listener.LocalEndpoint).Port);
106 this.listener.Start();
107 System.Net.Sockets.TcpClient client = this.listener.AcceptTcpClient();
108 System.Net.Sockets.NetworkStream stream = client.GetStream();
109 while(true) {
110 while(stream.DataAvailable) {
111 byte[] buff=new byte[1024];
112 int len=stream.Read(buff,0,buff.Length);
113 string cmd=System.Text.Encoding.Unicode.GetString(buff,0,len);
114 if (cmd==CMDGETFILE) {
115 System.IO.FileStream fs=System.IO.File.Open("Test.dat",System.IO.FileMode.Open,
116 System.IO.FileAccess.Read);
117 System.IO.BinaryReader br=new System.IO.BinaryReader(fs);
118 try {
119 this.txtStatus.Text="正在传输文件
";
120 while ((len=br.Read(buff,0,buff.Length))!=0) {
121 if(stream.CanWrite) {
122 stream.Write(buff,0,len);
123 }
124 }
125 stream.Flush();
126 stream.Close();
127 this.txtStatus.Text="传输文件完毕!";
128 return;
129 }
130 catch(Exception ex) {
131 this.txtStatus.Text="错误:"+ex.Message;
132 return;
133 }
134 finally {
135 br.Close();
136 }
137 }
138 else {
139 this.txtStatus.Text="命令字非法!";
140 }
141 }
142 }
143 }
144 catch(Exception ex) {
145 MessageBox.Show(ex.Message);
146 }
147 }
148 }
149 }
150
151
152 客户端:
153 using System;
154 using System.Drawing;
155 using System.Collections;
156 using System.ComponentModel;
157 using System.Windows.Forms;
158 using System.Data;
159 using System.IO;
160 using System.Net.Sockets;
161 using System.Net;
162 namespace GetFileClient {
163
164 public class Form1 : System.Windows.Forms.Form {
165 private System.Net.Sockets.TcpClient client=null;
166 private const string CMDGETFILE="GetTestFile";
167
168 private System.Windows.Forms.TextBox txtStatus;
169 private System.Windows.Forms.Label label1;
170 private System.Windows.Forms.Button btnConnect;
171 private System.Windows.Forms.Button btnReceive;
172
173 private System.ComponentModel.Container components = null;
174
175 public Form1() {
176
177 InitializeComponent();
178
179 }
180
181 protected override void Dispose( bool disposing ) {
182 if( disposing ) {
183 if (components != null) {
184 components.Dispose();
185 }
186 }
187 base.Dispose( disposing );
188 }
189
190 #region Windows 窗体设计器生成的代码
191 /// <summary>
192 /// 设计器支持所需的方法 - 不要使用代码编辑器修改
193 /// 此方法的内容。
194 /// </summary>
195 private void InitializeComponent() {
196 this.btnConnect = new System.Windows.Forms.Button();
197 this.btnReceive = new System.Windows.Forms.Button();
198 this.txtStatus = new System.Windows.Forms.TextBox();
199 this.label1 = new System.Windows.Forms.Label();
200 this.SuspendLayout();
201 //
202 // btnConnect
203 //
204 this.btnConnect.Location = new System.Drawing.Point(24, 104);
205 this.btnConnect.Name = "btnConnect";
206 this.btnConnect.TabIndex = 0;
207 this.btnConnect.Text = "连接";
208 this.btnConnect.Click += new System.EventHandler(this.btnConnect_Click);
209 //
210 // btnReceive
211 //
212 this.btnReceive.Location = new System.Drawing.Point(208, 104);
213 this.btnReceive.Name = "btnReceive";
214 this.btnReceive.TabIndex = 1;
215 this.btnReceive.Text = "接收文件";
216 this.btnReceive.Click += new System.EventHandler(this.btnReceive_Click);
217 //
218 // txtStatus
219 //
220 this.txtStatus.Location = new System.Drawing.Point(56, 16);
221 this.txtStatus.Multiline = true;
222 this.txtStatus.Name = "txtStatus";
223 this.txtStatus.Size = new System.Drawing.Size(309, 74);
224 this.txtStatus.TabIndex = 4;
225 this.txtStatus.Text = "";
226 //
227 // label1
228 //
229 this.label1.AutoSize = true;
230 this.label1.Location = new System.Drawing.Point(8, 16);
231 this.label1.Name = "label1";
232 this.label1.Size = new System.Drawing.Size(35, 17);
233 this.label1.TabIndex = 3;
234 this.label1.Text = "状态:";
235 //
236 // Form1
237 //
238 this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
239 this.ClientSize = new System.Drawing.Size(376, 141);
240 this.Controls.Add(this.txtStatus);
241 this.Controls.Add(this.label1);
242 this.Controls.Add(this.btnReceive);
243 this.Controls.Add(this.btnConnect);
244 this.Name = "Form1";
245 this.Text = "客户端";
246 this.ResumeLayout(false);
247
248 }
249 #endregion
250
251 [STAThread]
252 static void Main() {
253 Application.Run(new Form1());
254 }
255
256 private void btnConnect_Click(object sender, System.EventArgs e) {
257 IPAddress ip=IPAddress.Parse("10.0.0.153");
258 IPEndPoint remotepoint=new IPEndPoint(ip,10000);
259 client=new TcpClient();
260 try {
261 client.Connect(remotepoint);
262 this.txtStatus.Text="连接成功!";
263 }
264 catch(Exception ex) {
265 this.txtStatus.Text="错误:"+ex.Message;
266 client=null;
267 }
268 }
269
270 private void btnReceive_Click(object sender, System.EventArgs e) {
271 if(client==null) {
272 MessageBox.Show("先连接服务器!");
273 return;
274 }
275 NetworkStream stream=client.GetStream();
276 string cmd=CMDGETFILE;
277 byte[] bytcmd=System.Text.Encoding.Unicode.GetBytes(cmd);
278 try {
279 if (stream.CanWrite) {
280 this.txtStatus.Text="发送命令!";
281 stream.Write(bytcmd,0,bytcmd.Length);
282 while(true) {
283 if(stream.DataAvailable) {
284 if(stream.CanRead) {
285 FileStream fs=File.Open("Test.dat",FileMode.OpenOrCreate,FileAccess.Write);
286 BinaryWriter bw=new BinaryWriter(fs);
287 try {
288 this.txtStatus.Text="正在接收文件";
289 byte[] buff=new byte[1024];
290 int len=0;
291 while((len=stream.Read(buff,0,buff.Length))!=0) {
292 bw.Write(buff,0,len);
293 bw.Flush();
294 }
295
296 this.txtStatus.Text="接收完毕!";
297 return;
298 }
299 catch(Exception ex) {
300 this.txtStatus.Text="错误:"+ex.Message;
301 return;
302 }
303 finally {
304 bw.Close();
305 }
306 }
307 }
308 }
309 }
310 }
311 catch(Exception ex) {
312 MessageBox.Show(ex.Message);
313 }
314 }
315 }
316 }
317
318
319 由于小弟对这个也是一知半解,所以也就不做注解说明了,以免贻笑大方贻笑大方,呵呵.
2 为了简单起见,测试里没有用多线程和异步方式.只是能把文件传过去.呵呵.代码如下:
3 服务器端:
4 using System;
5 using System.Drawing;
6 using System.Collections;
7 using System.ComponentModel;
8 using System.Windows.Forms;
9 using System.Data;
10 using System.Net.Sockets;
11 using System.Net;
12 namespace TransmitFileServer {
13
14 public class Form1 : System.Windows.Forms.Form {
15 private const string CMDGETFILE="GetTestFile";
16
17 private System.Net.Sockets.TcpListener listener=null;
18 private System.Windows.Forms.Button btnListen;
19 private System.Windows.Forms.Label label1;
20 private System.Windows.Forms.TextBox txtStatus;
21
22 private System.ComponentModel.Container components = null;
23
24 public Form1() {
25
26 InitializeComponent();
27
28 string hostname=Dns.GetHostName(); //获得主机名
29 IPHostEntry entry=Dns.Resolve(hostname); //通过主机名得到IP列表
30 IPEndPoint point=new IPEndPoint(entry.AddressList[0],10000); //用第0个IP和10000端口实例化IPEndPoint
31
32 listener=new TcpListener(point); //也可以用其它的构造函数
33 }
34
35 protected override void Dispose( bool disposing ) {
36 if( disposing ) {
37 if (components != null) {
38 components.Dispose();
39 }
40 }
41 base.Dispose( disposing );
42 }
43
44 #region Windows 窗体设计器生成的代码
45 /// <summary>
46 /// 设计器支持所需的方法 - 不要使用代码编辑器修改
47 /// 此方法的内容。
48 /// </summary>
49 private void InitializeComponent() {
50 this.btnListen = new System.Windows.Forms.Button();
51 this.label1 = new System.Windows.Forms.Label();
52 this.txtStatus = new System.Windows.Forms.TextBox();
53 this.SuspendLayout();
54 //
55 // btnListen
56 //
57 this.btnListen.Location = new System.Drawing.Point(48, 159);
58 this.btnListen.Name = "btnListen";
59 this.btnListen.Size = new System.Drawing.Size(88, 32);
60 this.btnListen.TabIndex = 0;
61 this.btnListen.Text = "开始侦听";
62 this.btnListen.Click += new System.EventHandler(this.btnListen_Click);
63 //
64 // label1
65 //
66 this.label1.AutoSize = true;
67 this.label1.Location = new System.Drawing.Point(8, 16);
68 this.label1.Name = "label1";
69 this.label1.Size = new System.Drawing.Size(35, 17);
70 this.label1.TabIndex = 1;
71 this.label1.Text = "状态:";
72 //
73 // txtStatus
74 //
75 this.txtStatus.Location = new System.Drawing.Point(54, 12);
76 this.txtStatus.Multiline = true;
77 this.txtStatus.Name = "txtStatus";
78 this.txtStatus.Size = new System.Drawing.Size(309, 120);
79 this.txtStatus.TabIndex = 2;
80 this.txtStatus.Text = "";
81 //
82 // Form1
83 //
84 this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
85 this.ClientSize = new System.Drawing.Size(384, 205);
86 this.Controls.Add(this.txtStatus);
87 this.Controls.Add(this.label1);
88 this.Controls.Add(this.btnListen);
89 this.Name = "Form1";
90 this.Text = "Server";
91 this.ResumeLayout(false);
92
93 }
94 #endregion
95
96
97 [STAThread]
98 static void Main() {
99 Application.Run(new Form1());
100 }
101
102 private void btnListen_Click(object sender, System.EventArgs e) {
103 try {
104 this.txtStatus.Text=string.Format("服务器正监听的IP为:{0},端口为:{1}",
105 ((IPEndPoint)listener.LocalEndpoint).Address,((IPEndPoint)listener.LocalEndpoint).Port);
106 this.listener.Start();
107 System.Net.Sockets.TcpClient client = this.listener.AcceptTcpClient();
108 System.Net.Sockets.NetworkStream stream = client.GetStream();
109 while(true) {
110 while(stream.DataAvailable) {
111 byte[] buff=new byte[1024];
112 int len=stream.Read(buff,0,buff.Length);
113 string cmd=System.Text.Encoding.Unicode.GetString(buff,0,len);
114 if (cmd==CMDGETFILE) {
115 System.IO.FileStream fs=System.IO.File.Open("Test.dat",System.IO.FileMode.Open,
116 System.IO.FileAccess.Read);
117 System.IO.BinaryReader br=new System.IO.BinaryReader(fs);
118 try {
119 this.txtStatus.Text="正在传输文件
";120 while ((len=br.Read(buff,0,buff.Length))!=0) {
121 if(stream.CanWrite) {
122 stream.Write(buff,0,len);
123 }
124 }
125 stream.Flush();
126 stream.Close();
127 this.txtStatus.Text="传输文件完毕!";
128 return;
129 }
130 catch(Exception ex) {
131 this.txtStatus.Text="错误:"+ex.Message;
132 return;
133 }
134 finally {
135 br.Close();
136 }
137 }
138 else {
139 this.txtStatus.Text="命令字非法!";
140 }
141 }
142 }
143 }
144 catch(Exception ex) {
145 MessageBox.Show(ex.Message);
146 }
147 }
148 }
149 }
150
151
152 客户端:
153 using System;
154 using System.Drawing;
155 using System.Collections;
156 using System.ComponentModel;
157 using System.Windows.Forms;
158 using System.Data;
159 using System.IO;
160 using System.Net.Sockets;
161 using System.Net;
162 namespace GetFileClient {
163
164 public class Form1 : System.Windows.Forms.Form {
165 private System.Net.Sockets.TcpClient client=null;
166 private const string CMDGETFILE="GetTestFile";
167
168 private System.Windows.Forms.TextBox txtStatus;
169 private System.Windows.Forms.Label label1;
170 private System.Windows.Forms.Button btnConnect;
171 private System.Windows.Forms.Button btnReceive;
172
173 private System.ComponentModel.Container components = null;
174
175 public Form1() {
176
177 InitializeComponent();
178
179 }
180
181 protected override void Dispose( bool disposing ) {
182 if( disposing ) {
183 if (components != null) {
184 components.Dispose();
185 }
186 }
187 base.Dispose( disposing );
188 }
189
190 #region Windows 窗体设计器生成的代码
191 /// <summary>
192 /// 设计器支持所需的方法 - 不要使用代码编辑器修改
193 /// 此方法的内容。
194 /// </summary>
195 private void InitializeComponent() {
196 this.btnConnect = new System.Windows.Forms.Button();
197 this.btnReceive = new System.Windows.Forms.Button();
198 this.txtStatus = new System.Windows.Forms.TextBox();
199 this.label1 = new System.Windows.Forms.Label();
200 this.SuspendLayout();
201 //
202 // btnConnect
203 //
204 this.btnConnect.Location = new System.Drawing.Point(24, 104);
205 this.btnConnect.Name = "btnConnect";
206 this.btnConnect.TabIndex = 0;
207 this.btnConnect.Text = "连接";
208 this.btnConnect.Click += new System.EventHandler(this.btnConnect_Click);
209 //
210 // btnReceive
211 //
212 this.btnReceive.Location = new System.Drawing.Point(208, 104);
213 this.btnReceive.Name = "btnReceive";
214 this.btnReceive.TabIndex = 1;
215 this.btnReceive.Text = "接收文件";
216 this.btnReceive.Click += new System.EventHandler(this.btnReceive_Click);
217 //
218 // txtStatus
219 //
220 this.txtStatus.Location = new System.Drawing.Point(56, 16);
221 this.txtStatus.Multiline = true;
222 this.txtStatus.Name = "txtStatus";
223 this.txtStatus.Size = new System.Drawing.Size(309, 74);
224 this.txtStatus.TabIndex = 4;
225 this.txtStatus.Text = "";
226 //
227 // label1
228 //
229 this.label1.AutoSize = true;
230 this.label1.Location = new System.Drawing.Point(8, 16);
231 this.label1.Name = "label1";
232 this.label1.Size = new System.Drawing.Size(35, 17);
233 this.label1.TabIndex = 3;
234 this.label1.Text = "状态:";
235 //
236 // Form1
237 //
238 this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
239 this.ClientSize = new System.Drawing.Size(376, 141);
240 this.Controls.Add(this.txtStatus);
241 this.Controls.Add(this.label1);
242 this.Controls.Add(this.btnReceive);
243 this.Controls.Add(this.btnConnect);
244 this.Name = "Form1";
245 this.Text = "客户端";
246 this.ResumeLayout(false);
247
248 }
249 #endregion
250
251 [STAThread]
252 static void Main() {
253 Application.Run(new Form1());
254 }
255
256 private void btnConnect_Click(object sender, System.EventArgs e) {
257 IPAddress ip=IPAddress.Parse("10.0.0.153");
258 IPEndPoint remotepoint=new IPEndPoint(ip,10000);
259 client=new TcpClient();
260 try {
261 client.Connect(remotepoint);
262 this.txtStatus.Text="连接成功!";
263 }
264 catch(Exception ex) {
265 this.txtStatus.Text="错误:"+ex.Message;
266 client=null;
267 }
268 }
269
270 private void btnReceive_Click(object sender, System.EventArgs e) {
271 if(client==null) {
272 MessageBox.Show("先连接服务器!");
273 return;
274 }
275 NetworkStream stream=client.GetStream();
276 string cmd=CMDGETFILE;
277 byte[] bytcmd=System.Text.Encoding.Unicode.GetBytes(cmd);
278 try {
279 if (stream.CanWrite) {
280 this.txtStatus.Text="发送命令!";
281 stream.Write(bytcmd,0,bytcmd.Length);
282 while(true) {
283 if(stream.DataAvailable) {
284 if(stream.CanRead) {
285 FileStream fs=File.Open("Test.dat",FileMode.OpenOrCreate,FileAccess.Write);
286 BinaryWriter bw=new BinaryWriter(fs);
287 try {
288 this.txtStatus.Text="正在接收文件";
289 byte[] buff=new byte[1024];
290 int len=0;
291 while((len=stream.Read(buff,0,buff.Length))!=0) {
292 bw.Write(buff,0,len);
293 bw.Flush();
294 }
295
296 this.txtStatus.Text="接收完毕!";
297 return;
298 }
299 catch(Exception ex) {
300 this.txtStatus.Text="错误:"+ex.Message;
301 return;
302 }
303 finally {
304 bw.Close();
305 }
306 }
307 }
308 }
309 }
310 }
311 catch(Exception ex) {
312 MessageBox.Show(ex.Message);
313 }
314 }
315 }
316 }
317
318
319 由于小弟对这个也是一知半解,所以也就不做注解说明了,以免贻笑大方贻笑大方,呵呵.
一点说明：为什么在标题中要嵌入英文？原因是为了能够让国外的网友能查询到这篇文章。平常在Google上查资料的时候，经常参考国外网友的博客，帮助我解决了很多问题，所以我也想让他们能够参考我写的内容。当然文中我不可能全部译为英文，所以我尽量把代码粘全，靠代码说话吧。
