码云地址:https://gitee.com/shikexin/16012018_shi_kexin_examination/tree/master
使用套接写连接编写一个简单的聊天室程序,客户端主函数放在Client_Main.java文件中,服务器端主函数放在Server_Main.java文件中
要求:
- 1.客户端从控制台进行输入,并将客户端的输出内容和时间保存到“学号.txt”文件中
- 2.服务器端读取到客户端的程序后,给客户端以回应,并将客户端的输入内容与服务端的输出内容、时间保存到文本文件中
- 3.要求服务器端可以实现同时与多个客户端进行通信,与每一个客户端通信的内容,保存为一个“学号_ip.txt”的文件
- 4.4.提交文件结果包括:代码,通信后生成的txt文件
客户端:
import java.net.*; import java.util.*; public class Client_Main { public static void main(String[] args) { // TODO Auto-generated method stub Scanner scanner=new Scanner(System.in); Thread readData; ReceiveLetterForC receive=new ReceiveLetterForC(); try{ readData=new Thread(receive); readData.start(); byte [] buffer=new byte [1]; InetAddress address=InetAddress.getByName("10.43.11.91"); DatagramPacket dataPack= new DatagramPacket(buffer,buffer.length,address,888); DatagramSocket postman=new DatagramSocket(); System.out.print("输入法送给服务器的消息:"); while(scanner.hasNext()){ String mess=scanner.nextLine(); buffer=mess.getBytes(); if(mess.length()==0) System.exit(0); buffer=mess.getBytes(); dataPack.setData(buffer); postman.send(dataPack); System.out.print("继续输入法送给服务器的消息:"); } } catch (Exception e){ System.out.println(e); } } }
import java.net.*; public class ReceiveLetterForC implements Runnable{ public void run(){ DatagramPacket pack=null; DatagramSocket postman=null; byte data[]=new byte[8192]; try{ pack=new DatagramPacket(data,data.length); postman=new DatagramSocket(666); } catch(Exception e){} while(true){ if(postman==null) break; else try{ postman.receive(pack); String message=new String (pack.getData(),0,pack.getLength()); System.out.println("յ"+message); } catch(Exception e){} } } }
服务器:
import java.net.*; import java.util.*; //import java.io.*; public class Server_Main { public static void main(String[] args) { // TODO Auto-generated method stub Scanner scanner=new Scanner(System.in); Thread readData; ReceiveLetterForS receive=new ReceiveLetterForS(); try{ readData=new Thread(receive); readData.start(); byte [] buffer=new byte [1]; InetAddress address=InetAddress.getByName("10.43.11.91"); DatagramPacket dataPack= new DatagramPacket(buffer,buffer.length,address,888); DatagramSocket postman=new DatagramSocket(); System.out.print("输入法送给客户端的消息:"); while(scanner.hasNext()){ String mess=scanner.nextLine(); buffer=mess.getBytes(); if(mess.length()==0) System.exit(0); buffer=mess.getBytes(); dataPack.setData(buffer); postman.send(dataPack); System.out.print("继续输入法送给客户端的消息:"); } } catch (Exception e){ System.out.println(e); } } }
import java.net.*; public class ReceiveLetterForS implements Runnable{ public void run(){ DatagramPacket pack=null; DatagramSocket postman=null; byte data[]=new byte[8192]; try{ pack=new DatagramPacket(data,data.length); postman=new DatagramSocket(666); } catch(Exception e){} while(true){ if(postman==null) break; else try{ postman.receive(pack); String message=new String (pack.getData(),0,pack.getLength()); System.out.println("յ"+message); } catch(Exception e){} } } }
解题思路:使用套接字,UDP通信,使用DatagramSocket()方法构建对象
运行结果:
总结:问题是收不到消息,考核快结束,发现418页可以作为参考应用举例,这道题有点难,光靠课上学的知识真的不足以做出这道题,学到的知识也不是很扎实,课后也没有做练习,导致考核没有做出来,书翻得还不够多,java需要学习的地方还有很多,学无止境啊
学习内容 | 代码行数 | 博客字数 |
第四次过程性考核 | 120 | 150 |