套接字编程.docx

专业： 姓名： 学号： 日期： 地点： 实验报告课程名称： 计算机网络 指导老师： 成绩：_实验名称： 实验类型： 同组学生姓名：_一、实验目的和要求（必填）二、实验内容和原理（必填）三、主要仪器设备（必填）四、操作方法和实验步骤五、实验数据记录和处理六、实验结果与分析（必填）七、讨论、心得装 订 线一、实验目的和要求开始使用套接字编程逐步熟悉Winsock完成一个简单的Web server二、实验内容和原理 阅读教材和PPT学习老师提供的winsock编程资料安装相应的开发环境三、主要仪器和设备Java四、操作方法和实验步骤Stage 1 The echoer Simply sends back & displays the contents of the received data stream from the client Using telnet to test your echoer. Run cmd telnet your_ip your_port type in random characters & check quitjava程序：import java.io.*; import .*; public class TCPServer public static void main(String argv) throws Exception System.out.println(start); String clientSentence; /读写语句 String serverSentence; /发送语句 ServerSocket welcomeSocket = new ServerSocket(6789); /建立套接字，端口6789 while(true) Socket connectionSocket = welcomeSocket.accept(); /建立发送套接字 BufferedReader inFromClient = new BufferedReader(new InputStreamReader(connectionSocket.getInputStream(); DataOutputStream outToClient = new DataOutputStream(connectionSocket.getOutputStream(); outToClient.writeBytes(Server has started!rn); clientSentence = inFromClient.readLine(); outToClient.writeBytes(Have received: ); serverSentence = clientSentence + n; outToClient.writeBytes(serverSentence); /send back the message connectionSocket.close(); /关闭套接字 对套接字运行测试：Stage 2Paser Functionality1. Check whether the message is a HTTP GET request message.2. If not, send back Bad request string.3. If so, find out the of the file the client is requesting.4. Check if the file, , exists.5. If not, send back File not existed string6. If so, send back1. File found string2. File size: stringJava程序：import java.io.*; import .*; public class WEBServer public static void main(String argv) throws Exception String clientSentence; String capitalizedSentence=null; String request=new String(GET); long size; ServerSocket welcomeSocket = new ServerSocket(6789); while(true) Socket connectionSocket = welcomeSocket.accept(); BufferedReader inFromClient = new BufferedReader(new InputStreamReader(connectionSocket.getInputStream(); DataOutputStream outToClient = new DataOutputStream(connectionSocket.getOutputStream(); clientSentence = inFromClient.readLine(); String word = clientSentence.split( ); if(request.equals(word0) String name = word1.split(/); File file = new File(name1); if(file.exists() size = file.length(); capitalizedSentence = File found+File size:+size; else capitalizedSentence = (File not existed); else capitalizedSentence = Bad request; outToClient.writeBytes(capitalizedSentence); connectionSocket.close(); 输入：http:/localhost:6789/test.html输入http:/localhost:6789/tst.htmlStage3 the responderWeb Server Functionality1. Check whether the message is a GET message.2. If not, send back Bad request string.3. If so, find out the of the file the client is requesting.4. Check if the file, , exists.5. If not, send back File not existed string6. If so, send back an HTTP Response with the fileJava 程序：import java.io.*; import .*; public class WEBServer public static void main(String argv) throws Exception String clientSentence; String capitalizedSentence=null; String request=new String(GET); long size; ServerSocket welcomeSocket = new ServerSocket(6789); while(true) Socket connectionSocket = welcomeSocket.accept(); BufferedReader inFromClient = new BufferedReader(new InputStreamReader(connectionSocket.getInputStream(); DataOutputStream outToClient = new DataOutputStream(connectionSocket.getOutputStream(); clientSentence = inFromClient.readLine(); String word = clientSentence.split( ); if(request.equals(word0) String name = word1.split(/); File file = new File(name1); if(file.exists() FileInputStream content = new FileInputStream(file); byte data = new bytecontent.available(); content.read(data); content.close(); FileOutputStream content1 = new FileOutputStream(file); content1.write(data); content1.close(); size = file.length(); capitalizedSentence = HTTP/1.0 200 Document Followsrn+Content-Length:+size+rnrn+new String (data); else capitalizedSentence = (File n