网络编程-实验报告

1、贵州大学实验报告学院：计算机学院专业：软件工程班级：软件 123班姓名*学号*实验组实验时间2015-5-9指导教师蔡丽成绩实验项目名称FTP上传T载器编程实验目的通过本实验掌握C鼾FTP上传下载器编程的方法，了解其区别与适用场 合。实验要求了解C#勺UDP编程方法。实验原理使用.NET请求/响应模型的FtpWebRequest类和FtpWebRespons族实现简单的Web浏览器实验环境Visual Studio开发环境1.设计程序界面。2.实现程序功能。实现简单的 Web浏览器，要求使用.NET请求/响应模型的FtpWebRequest类和 FtpWebRespons战。服务器核心代码实R

2、epleyCommandToUser(user, sendString);RepleyCommandToUser(user, sendString);incorrect."elsesendString = "501 PASS command Syntax error."RepleyCommandToUser(user, sendString); ateTimeFormat;.");(path);AddInfo("删除成功");sendString = "250 File " + filename + "

3、has been deleted."RepleyCommandToUser(user, sendString);#endregion#region模式设置命令ddressList1;eplace('.', ',');符串来组合这四个参数得到IP地址+ temp1 + "." + temp2 + "." + temp3;.");tryifbyte口 bytes = new byte1024;BinaryReader binaryReader = newBinaryReader(fs);int count

4、= (bytes, 0,;while (count > 0)0, count);StreamReader streamReader = newStreamReader(fs);.”)；BinaryWriter binaryWriter = newBinaryWriter(fs);int count = 0,while (count > 0)(bytes, 0, count)()；count = 0,elseStreamWriter streamWriter = newStreamWriter(fs);while > -1)();AddInfo("接收完毕”);fin

5、ally()；oString();()；=true;=false=false;=false=false=false;#region键盘按下事件private void txtUserName_KeyPress(object sender,KeyPressEventArgs e).");string s =();();();I();"传输完成");ndsWith(".")length = ftpdiri.Length - 2;break; for (int i = 0; i < ; i+)s = ftpdiri;int index = (&

6、#39;t');if (index = -1)string name = (index + 1);if (name = "." | name =".")continue;dirname = namefieldnamefieldlength - 1;| name =".")continue;ontains("<dir>")string口 namefield =('');int namefieldlength =;string filename;filename = namefiel

7、dnamefieldlength - 1;|*"if () !二return;FileInfo fileinfo = new FileInfo;trystring uri = GetUriString;FtpWebRequest request =CreateFTPWebRequest(uri,=;int buflength = 8196;byte口 buffer = new bytebuflength;FileStream filestream =();Stream responseStream =();“打开上传流，文件上传中)int contenlength = (buffer

8、, 0, buflength);while (contenlength != 0)(buffer, 0, contenlength);contenlength = (buffer, 0, buflength);FtpWebResponse response =GetFTPWebResponse(request);if (response = null)"上传完毕，服务器返回："+ + "" +=-1;（"上传成功！”）；string filePath =;trystring uri = GetUriString(fileName);FtpWeb

9、Request request =CreateFTPWebRequest(uri,FtpWebResponseresponse = GetFTPWebResponse(request);if (response = null)"服务器未响应)=-1;return;Stream responseStream =();FileStream filestream = (filePath);int buflength = 8196;byte口 buffer = new bytebuflength;int bytesRead = 1;“打开下载通道，文件下载中while (bytesRead

10、!= 0)bytesRead = (buffer, 0, buflength);(buffer, 0, bytesRead);();();"下载完毕，服务器返回："+ + "" +=-1;（"下载完成！"）；catch （WebException ex）"发生错误，返回状态为："+ ;=-1;，"下载失败"）；"文件删除成功，服务器返回："+ + "" + ;ShowFtpFileAndDirectory();elsereturn;catch (WebEx

11、ception ex)"发生错误，返回状态为："+=-1;，"删除失败");#endregion/ <summary>/变更目录操作/ </summary>/ <param name="sender"></param>/ <param name="e"></param>private void lstboxFTPResource_MouseDoubleClick(objectsender, MouseEventArgs e)/点击返回上层目录i

12、f = 0)if (currentDir = "/")I0("当前目录已经是顶层目录",""return;int index = ("/");if (index = 0)_currentDir = "/"elsecurrentDir = (0, index);/每次更改目录后立即刷新资源列表ShowFtpFileAndDirectory();elseif > 0 && "目录")if (currentDir = "/")current

13、Dir = "/"elsecurrentDir = currentDir + "/"string口 _currentDirfield =('')；currentDir = _currentDirfield0;/每次更改目录后立即刷新资源列表ShowFtpFileAndDirectory();启动服务器:登陆链接:叫FTP文件上传下载黑 1”一 ！回连接状态:策的文件列表I返上层目录【目箓TTZstfii电cChrys mEk电面s.pgR”自 rt_ jpg下载I上甚天施劳署回应信息；【23 口 Us er log孚din succms220 FTP Strvtr vLO朋替器返回的是；OptiuncDalt 150 OpmiiLf ASCII dat* sm栏uti口工lE姑上e任niH般受量JBxft 旬四 S：疔1 I t FT? $<rwr S 0)、节£器运团七OlmC.c.yXE -曹繇樱牌蛾曾六i" FlServer -SlMfofiK)尔：,，5水iblrT<xtJ>nd»TircP»fwit