java简易通信源代码 通信 java

如何使用java实现两台计算机的通信 源代码

一个简单的聊天程序

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参考一下；

//客户端的

import java.io.*;

import java.net.*;

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

public class ChatClient {

public static void main(String[] args) {

ChatClient cc=new ChatClient();

cc.receive();

}

JTextField jtf;

JTextArea jta;

Socket s;

PrintWriter out;

BufferedReader in;

public ChatClient(){

JFrame frame=new JFrame("ChatClient");

frame.setSize(400,300);

jta=new JTextArea();

jta.setEditable(false);

jtf=new JTextField();

jtf.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent arg0) {

send();

}

});

frame.getContentPane().add(new JScrollPane(jta));

frame.getContentPane().add(jtf,"South");

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setVisible(true);

try {

s=new Socket("127.0.0.1",9000);

in=new BufferedReader(new InputStreamReader(s.getInputStream()));

out=new PrintWriter(s.getOutputStream());

} catch (UnknownHostException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

public void receive(){

while(true){

try {

String text=in.readLine();

this.jta.append(text+"\n");

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

return;

}

}

}

public void send(){

String text=this.jtf.getText();

this.jtf.setText("");

out.println(text);

out.flush();

}

}

//服务器端的

import java.net.*;

import java.io.*;

import java.util.*;

public class ChatServer {

public static void main(String[] args) throws Exception {

ServerSocket ss=new ServerSocket(9000);

List list=new ArrayList();

while(true){

Socket s=ss.accept();

list.add(s);

Thread t=new ServerThread(s,list);

t.start();

}

}

}

class ServerThread extends Thread{

Socket s;

List list;

BufferedReader in;

PrintWriter out;

public ServerThread(Socket s, List list) {

this.s = s;

this.list = list;

try {

in=new BufferedReader(new InputStreamReader(s.getInputStream()));

out=new PrintWriter(s.getOutputStream());

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

public void run(){

while(true){

try {

String str=in.readLine();

if (str==null) return;

Iterator it=list.iterator();

while(it.hasNext()){

Socket socket=(Socket)(it.next());

PrintWriter o=new PrintWriter(socket.getOutputStream());

o.println(str);

o.flush();

}

} catch (IOException e) {

// TODO Auto-generated catch block

//e.printStackTrace();

return;

}

}

}

}

javaweb 做一个通讯录的小项目 求源代码 急求。

先设计数据库中通讯录表格（字段有:id,联系人姓名，手机号，备注），然后，hebinate实现数据库表到javabean的映射，同时也会生成对通讯录表格的增删改查的基本sql语句对应的接口。然后你再写一个Servlet，连接页面自己数据库操作接口即可

求编写一个超级简单的Java的程序源代码

class Stack_Float

{

float nums[];

int top;

Stack_Float()

{

nums = new float[50];

top = -1;

}

boolean IsEmpty()

{

if(top == -1)

return true;

else

return false;

}

float Pop_Stack()

{

if(top==-1)

{

return 0;

}

top--;

return nums[top + 1];

}

float GetTop()

{

return nums[top];

}

void Push_Stack(float num)

{

if(top == 49)

return;

top++;

nums[top] = num;

}

}

/*****************************************************************************/

class Stack_Char

{

char str[];

int top;

Stack_Char()

{

str = new char[50];

top = -1;

}

boolean IsEmpty()

{

if(top==-1)

return true;

else

return false;

}

void Push_Stack(char ch)

{

if(top == 49)

return;

top++;

str[top] = ch;

}

char Pop_Stack()

{

if(top == -1)

return '\0';

top--;

return str[top + 1];

}

char GetTop()

{

if(top == -1)

{

System.out.print("error");

System.exit(0);

}

return str[top];

}

}

/*****************************************************************************/

public class jisuanqi extends javax.swing.JFrame

{

String show = "";

public jisuanqi()

{

initComponents();

}

char[] TranSmit(char str[])

{

char houzhui[] = new char[50]; //存放后缀表达式的字符串

int i = 0,j = 0;

char c = str[i];

Stack_Char s = new Stack_Char(); //存放运算符的栈

while(c != '=') //对算术表达式扫描未结束时

{

if(c = '0' c = '9')

{

while(c = '0' c = '9')//数字直接入栈

{

houzhui[j]=c;

j++;

i++;

c=str[i];

}

houzhui[j]='#';//用#隔开数字

j++;

}

switch(c) //扫描到运算符时

{

case '+':

case '-':

case '*':

case '/':

if(s.IsEmpty() == true) //栈空,直接入栈

{

s.Push_Stack(c);

i++;

c=str[i];

break;

}

if(ComPare(s.GetTop(),c) == -1)

{

s.Push_Stack(c); //入栈

i++;

c=str[i];

break;

}

if(ComPare(s.GetTop(),c) == 1)

{

houzhui[j]=s.Pop_Stack();//出栈元素存入后缀表达式

j++;

break;

}

}

}

while(s.IsEmpty() != true)//把剩余的运算符直接出栈

{

houzhui[j]=s.Pop_Stack();

j++;

}

houzhui[j] = '=';//后缀表达式后面加 =

j++;

houzhui[j] = '\0';

j++;

return houzhui;

}

float Count(char str[])

{

Stack_Float s = new Stack_Float();//定义存放数字的栈

char c = str[0];

int i = 0,j = 0;

float result = 0,temp,left,right;

while(c != '=') //未扫描到 = 时

{

if(c = '0' c = '9')//扫描到数字

{

temp = 0;

while(c != '#')//未读到分隔符时

{

temp = temp * 10 + c - '0';

i++;

c = str[i];

}

s.Push_Stack(temp);//进栈

}

switch(c)//扫描到运算符时

{

case '+':

{

result = s.Pop_Stack() + s.Pop_Stack();//2个数字出栈相加

s.Push_Stack(result);//最后得数进栈

break;

}

case '-':

{

right = s.Pop_Stack();//右操作数出栈

left = s.Pop_Stack();//左操作数出栈

result = left - right;

s.Push_Stack(result);

break;

}

case '*':

{

result = s.Pop_Stack() * s.Pop_Stack();//2个数字出栈相乘

s.Push_Stack(result);

break;

}

case '/':

{

right = s.Pop_Stack();//右操作数出栈

left = s.Pop_Stack();//左操作数出栈

result = left / right;

s.Push_Stack(result);

break;

}

}

i++;

c = str[i];

}

return result;

}

int ComPare(char a,char b) //判断运算符的优先级函数

{

int s[][] =

{// 栈顶元素高于算术表达式中的元素时, 返回 1,否则返回 -1

{1,1,-1,-1},

{1,1,-1,-1},

{1,1,1,1},

{1,1,1,1},

};

char x1[]={'+','-','*','/'};//栈顶元素

char x2[]={'+','-','*','/'};//算术表达式中的元素

int k=0,m,n = 0;

for(m=0;m4;m++) //查找2个进行比较的运算符在表中的位置,并返回比较结果

{

for(n=0;n4;n++)

{

if(x1[m]==ax2[n]==b)

{

k=1;break; //找到比较结果后,跳出循环

}

}

if(k==1)

break;

}

return s[m][n];//返回比较结果

}

/*****************************************************************************/

@SuppressWarnings("unchecked")

// editor-fold defaultstate="collapsed" desc="Generated Code"//GEN-BEGIN:initComponents

private void initComponents() {

text = new javax.swing.JTextField();

jButton1 = new javax.swing.JButton();

jButton2 = new javax.swing.JButton();

jButton3 = new javax.swing.JButton();

jButton4 = new javax.swing.JButton();

jButton5 = new javax.swing.JButton();

jButton6 = new javax.swing.JButton();

jButton7 = new javax.swing.JButton();

jButton8 = new javax.swing.JButton();

jButton9 = new javax.swing.JButton();

jButton10 = new javax.swing.JButton();

jButton11 = new javax.swing.JButton();

jButton12 = new javax.swing.JButton();

jButton13 = new javax.swing.JButton();

jButton14 = new javax.swing.JButton();

jButton21 = new javax.swing.JButton();

jButton22 = new javax.swing.JButton();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

getContentPane().setLayout(null);

getContentPane().add(text);

text.setBounds(10, 10, 270, 30);

jButton1.setText("1");

jButton1.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton1ActionPerformed(evt);

}

});

getContentPane().add(jButton1);

jButton1.setBounds(10, 50, 60, 25);

jButton2.setText("2");

jButton2.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton2ActionPerformed(evt);

}

});

getContentPane().add(jButton2);

jButton2.setBounds(80, 50, 60, 25);

jButton3.setText("3");

jButton3.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton3ActionPerformed(evt);

}

});

getContentPane().add(jButton3);

jButton3.setBounds(150, 50, 60, 25);

jButton4.setText("4");

jButton4.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton4ActionPerformed(evt);

}

});

getContentPane().add(jButton4);

jButton4.setBounds(220, 50, 60, 25);

jButton5.setText("5");

jButton5.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton5ActionPerformed(evt);

}

});

getContentPane().add(jButton5);

jButton5.setBounds(10, 80, 60, 25);

jButton6.setText("6");

jButton6.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton6ActionPerformed(evt);

}

});

getContentPane().add(jButton6);

jButton6.setBounds(80, 80, 60, 25);

jButton7.setText("7");

jButton7.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton7ActionPerformed(evt);

}

});

getContentPane().add(jButton7);

jButton7.setBounds(150, 80, 60, 25);

jButton8.setText("8");

jButton8.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton8ActionPerformed(evt);

}

});

getContentPane().add(jButton8);

jButton8.setBounds(220, 80, 60, 25);

jButton9.setText("9");

jButton9.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton9ActionPerformed(evt);

}

});

getContentPane().add(jButton9);

jButton9.setBounds(10, 110, 60, 25);

jButton10.setText("0");

jButton10.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton10ActionPerformed(evt);

}

});

getContentPane().add(jButton10);

jButton10.setBounds(80, 110, 60, 25);

jButton11.setText("+");

jButton11.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton11ActionPerformed(evt);

}

});

getContentPane().add(jButton11);

jButton11.setBounds(150, 110, 60, 25);

jButton12.setText("-");

jButton12.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton12ActionPerformed(evt);

}

});

getContentPane().add(jButton12);

jButton12.setBounds(220, 110, 60, 25);

jButton13.setText("*");

jButton13.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton13ActionPerformed(evt);

}

});

getContentPane().add(jButton13);

jButton13.setBounds(10, 140, 60, 25);

jButton14.setText("/");

jButton14.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton14ActionPerformed(evt);

}

});

getContentPane().add(jButton14);

jButton14.setBounds(80, 140, 60, 25);

jButton21.setText("CE");

jButton21.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton21ActionPerformed(evt);

}

});

getContentPane().add(jButton21);

jButton21.setBounds(150, 140, 60, 25);

jButton22.setText("=");

jButton22.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton22ActionPerformed(evt);

}

});

getContentPane().add(jButton22);

jButton22.setBounds(220, 140, 60, 25);

pack();

}// /editor-fold//GEN-END:initComponents

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed

show += "1";

text.setText(show);

}//GEN-LAST:event_jButton1ActionPerformed

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed

show += "2";

text.setText(show);

}//GEN-LAST:event_jButton2ActionPerformed

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton3ActionPerformed

show += "3";

text.setText(show);

}//GEN-LAST:event_jButton3ActionPerformed

private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton4ActionPerformed

show += "4";

text.setText(show);

}//GEN-LAST:event_jButton4ActionPerformed

private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton5ActionPerformed

show += "5";

text.setText(show);

}//GEN-LAST:event_jButton5ActionPerformed

private void jButton6ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton6ActionPerformed

show += "6";

text.setText(show);

}//GEN-LAST:event_jButton6ActionPerformed

private void jButton7ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton7ActionPerformed

show += "7";

text.setText(show);

}//GEN-LAST:event_jButton7ActionPerformed

private void jButton8ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton8ActionPerformed

show += "8";

text.setText(show);

}//GEN-LAST:event_jButton8ActionPerformed

private void jButton9ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton9ActionPerformed

show += "9";

text.setText(show);

}//GEN-LAST:event_jButton9ActionPerformed

private void jButton10ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton10ActionPerformed

show += "0";

text.setText(show);

}//GEN-LAST:event_jButton10ActionPerformed

private void jButton13ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton13ActionPerformed

show += "*";

text.setText(show);

}//GEN-LAST:event_jButton13ActionPerformed

private void jButton14ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton14ActionPerformed

show += "/";

text.setText(show);

}//GEN-LAST:event_jButton14ActionPerformed

private void jButton21ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton21ActionPerformed

show = "";

text.setText("");

}//GEN-LAST:event_jButton21ActionPerformed

private void jButton22ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton22ActionPerformed

show += "=";

text.setText(show);

char str1[] = new char[50];

char str2[] = new char[50];

float result = 0;

str1 = show.toCharArray();

str2 = TranSmit(str1);

result = Count(str2);

text.setText("" + result);

show = "";

}//GEN-LAST:event_jButton22ActionPerformed

private void jButton12ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton12ActionPerformed

show += "-";

text.setText(show);

}//GEN-LAST:event_jButton12ActionPerformed

private void jButton11ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton11ActionPerformed

show += "+";

text.setText(show);

}//GEN-LAST:event_jButton11ActionPerformed

public static void main(String args[])

{

jisuanqi j = new jisuanqi();

j.setBounds(300, 300, 300, 195);

j.setVisible(true);

}

// Variables declaration - do not modify//GEN-BEGIN:variables

private javax.swing.JButton jButton1;

private javax.swing.JButton jButton10;

private javax.swing.JButton jButton11;

private javax.swing.JButton jButton12;

private javax.swing.JButton jButton13;

private javax.swing.JButton jButton14;

private javax.swing.JButton jButton2;

private javax.swing.JButton jButton21;

private javax.swing.JButton jButton22;

private javax.swing.JButton jButton3;

private javax.swing.JButton jButton4;

private javax.swing.JButton jButton5;

private javax.swing.JButton jButton6;

private javax.swing.JButton jButton7;

private javax.swing.JButton jButton8;

private javax.swing.JButton jButton9;

private javax.swing.JTextField text;

// End of variables declaration//GEN-END:variables

}

高分求两个简单的JAVA设计源代码

上面 wuzhikun12同学写的不错，但我想还不能运行，并且还不太完善。我给个能运行的：（注意：文件名为：Test.java)

//要实现对象间的比较，就必须实现Comparable接口，它里面有个compareTo方法

//Comparable最好使用泛型，这样，无论是速度还是代码量都会减少

@SuppressWarnings("unchecked")

class Student implements ComparableStudent{

private String studentNo; //学号

private String studentName; //姓名

private double englishScore; //英语成绩

private double computerScore; //计算机成绩

private double mathScore; //数学成绩

private double totalScore; //总成绩

//空构造函数

public Student() {}

//构造函数

public Student(String studentNo,String studentName,double englishSocre,double computerScore,double mathScore) {

this.studentNo = studentNo;

this.studentName = studentName;

this.englishScore = englishSocre;

this.computerScore = computerScore;

this.mathScore = mathScore;

}

//计算总成绩

public double sum() {

this.totalScore = englishScore+computerScore+mathScore;

return totalScore;

}

//计算评测成绩

public double testScore() {

return sum()/3;

}

//实现compareTO方法

@Override

public int compareTo(Student student) {

double studentTotal = student.getTotalScore();

return totalScore==studentTotal?0:(totalScorestudentTotal?1:-1);

}

//重写toString方法

public String toString(){

return "学号："+this.getStudentNo()+" 姓名："+this.getStudentName()+" 英语成绩："+this.getEnglishScore()+" 数学成绩："+this.getMathScore()+" 计算机成绩："+this.getComputerScore()+" 总成绩："+this.getTotalScore();

}

//重写equals方法

public boolean equals(Object obj) {

if(obj == null){

return false;

}

if(!(obj instanceof Student)){

return false;

}

Student student = (Student)obj;

if(this.studentNo.equals(student.getStudentName())) { //照现实来说，比较是不是同一个学生，应该只是看他的学号是不是相同

return true;

} else {

return false;

}

}

/*以下为get和set方法，我个人认为，totalScore的set的方法没必要要，因为它是由其它成绩计算出来的

在set方法中，没设置一次值，调用一次sum方法，即重新计算总成绩

*/

public String getStudentNo() {

return studentNo;

}

public void setStudentNo(String studentNo) {

this.studentNo = studentNo;

sum();

}

public String getStudentName() {

return studentName;

}

public void setStudentName(String studentName) {

this.studentName = studentName;

sum();

}

public double getEnglishScore() {

return englishScore;

}

public void setEnglishScore(double englishScore) {

this.englishScore = englishScore;

sum();

}

public double getComputerScore() {

return computerScore;

}

public void setComputerScore(double computerScore) {

this.computerScore = computerScore;

sum();

}

public double getMathScore() {

return mathScore;

}

public void setMathScore(double mathScore) {

this.mathScore = mathScore;

sum();

}

public double getTotalScore() {

return totalScore;

}

}

//Student子类学习委员类的实现

class StudentXW extends Student {

//重写父类Student的testScore()方法

@Override

public double testScore() {

return sum()/3+3;

}

public StudentXW() {}

//StudentXW的构造函数

public StudentXW(String studentNo,String studentName,double englishSocre,double computerScore,double mathScore) {

super(studentNo,studentName,englishSocre,computerScore,mathScore);

}

}

//Student子类班长类的实现

class StudentBZ extends Student {

//重写父类Student的testScore()方法

@Override

public double testScore() {

return sum()/3+5;

}

public StudentBZ() {}

//StudentXW的构造函数

public StudentBZ(String studentNo,String studentName,double englishSocre,double computerScore,double mathScore) {

super(studentNo,studentName,englishSocre,computerScore,mathScore);

}

}

//测试类

public class Test {

public static void main(String[] args) {

//生成若干个student类、StudentXW类、StudentBZ类

Student student1 = new Student("s001","张三",70.5,50,88.5);

Student student2 = new Student("s002","李四",88,65,88.5);

Student student3 = new Student("s003","王五",67,77,90);

StudentXW student4 = new StudentXW("s004","李六",99,88,99.5);

StudentBZ student5 = new StudentBZ("s005","朱漆",56,65.6,43.5);

Student[] students = {student1,student2,student3,student4,student5};

for(int i = 0 ; istudents.length; i++){

double avgScore = students[i].testScore();

System.out.println(students[i].getStudentName()+"学生的评测成绩为："+ avgScore+"分");

}

}

}

运行结果为：

张三学生的评测成绩为：69.66666666666667分

李四学生的评测成绩为：80.5分

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socket JAVA 源代码

很久以前做的了，启动程序两次，在单选框中选服务器点连接(一定要先点服务器-连接)，在在另外一个界面中选客户端点连接；

import java.awt.Color;

import java.awt.Container;

import java.awt.Font;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.io.PrintWriter;

import java.net.InetAddress;

import java.net.ServerSocket;

import java.net.Socket;

import java.util.Date;

import javax.swing.ButtonGroup;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JRadioButton;

import javax.swing.JTextArea;

import javax.swing.JTextField;

public class QQ extends JFrame implements ActionListener{

public static void main(String args[]){

QQ qq=new QQ();

}

String input;

ServerSocket ss;

Socket s1,s2;

PrintWriter pw;

BufferedReader br;

private server s;

private client cc;

private JLabel l1,l2,l3,l4,l5;

private JRadioButton jb[]=new JRadioButton[2];

private JTextField jf1,jf2,jf3;

private JButton j1,j2,j3;

private JTextArea ja;

public QQ(){

super("聊天");

Container c=getContentPane();

c.setLayout(null);

l1=new JLabel("TCP通信程序");

l1.setFont(new Font("宋体",Font.BOLD,16));

l1.setBackground(Color.black);

l1.setSize(2000,20);

l1.setLocation(10,10);

c.add(l1);

String str1[]={"服务端","客户端"};

ButtonGroup bg=new ButtonGroup();

for(int x=0;xstr1.length;x++)

{

jb[x]=new JRadioButton(str1[x]);

jb[x].setFont(new Font("宋体",Font.BOLD,15));

jb[x].setForeground(Color.black);

jb[x].setSize(80,40);

jb[x].setLocation(10+x*80,37);

bg.add(jb[x]);

c.add(jb[x]);

}

jb[0].setSelected(true);

l2=new JLabel("连接主机IP");

l2.setFont(new Font("宋体",Font.BOLD,16));

l2.setBackground(Color.black);

l2.setSize(120,20);

l2.setLocation(20, 80);

c.add(l2);

jf1=new JTextField("127.0.0.1");

jf1.setSize(220,30);

jf1.setLocation(120, 80);

c.add(jf1);

jf3=new JTextField("离线");

jf3.setSize(150,30);

jf3.setLocation(280, 40);

c.add(jf3);

l5=new JLabel("连接状态：");

l5.setFont(new Font("宋体",Font.BOLD,16));

l5.setBackground(Color.black);

l5.setSize(120,20);

l5.setLocation(200, 47);

c.add(l5);

j1=new JButton("连接");

j1.setSize(110,20);

j1.setLocation(360,85);

j1.addActionListener(this);

c.add(j1);

l3=new JLabel("接收到的信息");

l3.setFont(new Font("宋体",Font.BOLD,16));

l3.setBackground(Color.black);

l3.setSize(120,20);

l3.setLocation(20, 130);

c.add(l3);

ja=new JTextArea();

ja.setSize(250,200);

ja.setLocation(130, 130);

c.add(ja);

l4=new JLabel("发送信息");

l4.setFont(new Font("宋体",Font.BOLD,16));

l4.setBackground(Color.black);

l4.setSize(120,20);

l4.setLocation(20, 340);

c.add(l4);

jf2=new JTextField("gf");

jf2.setSize(220,30);

jf2.setLocation(120, 340);

c.add(jf2);

j2=new JButton("发送信息");

j2.setSize(110,20);

j2.setLocation(360,350);

j2.addActionListener(this);

c.add(j2);

j3=new JButton("结束连接");

j3.setSize(110,20);

j3.setLocation(360,110);

j3.addActionListener(this);

c.add(j3);

s=new server();

cc=new client();

j3.setEnabled(false);

j2.setEnabled(false);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setSize(500,450);

setVisible(true);

setLocation(300,300);

}

public void actionPerformed(ActionEvent e) {

// TODO 自动生成方法存根

if(e.getSource()==j1)

{

try{

if(jb[0].isSelected()==true)

{

input="";

s.start();

}

else {

input="";

cc.start();

}

}

catch(Exception ee)

{

jf3.setText("发生错误");

}

}

if(e.getSource()==j2)

{

pw.write(jf2.getText()+"\n");

pw.flush();

}

if(e.getSource()==j3)

{

try

{

if(jb[0].isSelected()==true)

{ s1.close();

jf3.setText("离线");

j2.setEnabled(false);

j3.setEnabled(false);

}

else

{

s2.close();

jf3.setText("离线");

j2.setEnabled(false);

j3.setEnabled(false);

}

}

catch (Exception e1) {

// TODO 自动生成 catch 块

}

}

}

class server extends Thread{

public void run(){

try {

j1.setEnabled(false);

jf3.setText("正在连接中@");

ss=new ServerSocket(4000);

s1=ss.accept();

br=new BufferedReader(new InputStreamReader(s1.getInputStream()));

pw=new PrintWriter(s1.getOutputStream(),true);

// bs=new BufferedOutputStream(os);

while(true){

if(ss.isBound()==true){

jf3.setText("连接成功");

j2.setEnabled(true);

j3.setEnabled(true);

break;

}

}

while(true)

{

input=br.readLine();

if(input.length()0){

ja.append(input);

ja.append("\n");

}

}

} catch (Exception e) {

// TODO 自动生成 catch 块

}

}

}

class client extends Thread{

public void run(){

try {

j1.setEnabled(false);

jf3.setText("正在连接中@");

s2=new Socket(InetAddress.getByName(jf1.getText()),4000);

// s2=new Socket();

// s2.connect(new InetSocketAddress(jf1.getText(),21),1000);

br=new BufferedReader(new InputStreamReader(s2.getInputStream()));

pw=new PrintWriter(s2.getOutputStream(),true);

// bs=new BufferedOutputStream(os);

while(true){

if(s2.isConnected()==true){

jf3.setText("连接成功");

j2.setEnabled(true);

j3.setEnabled(true);

break;

}

}

input="";

while(true){

input=br.readLine();

if(input.length()0)

{

ja.append(input);

}

}

} catch (Exception e) {

// TODO 自动生成 catch 块

}

}

}

}

怎么：实现两台计算机之间交互式数据通信的源代码。以窗口实现交互的 java

一个简单的聊天程序

参考一下；

//客户端的

import java.io.*;

import java.net.*;

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

public class ChatClient {

public static void main(String[] args) {

ChatClient cc=new ChatClient();

cc.receive();

}

JTextField jtf;

JTextArea jta;

Socket s;

PrintWriter out;

BufferedReader in;

public ChatClient(){

JFrame frame=new JFrame("ChatClient");

frame.setSize(400,300);

jta=new JTextArea();

jta.setEditable(false);

jtf=new JTextField();

jtf.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent arg0) {

send();

}

});

frame.getContentPane().add(new JScrollPane(jta));

frame.getContentPane().add(jtf,"South");

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setVisible(true);

try {

s=new Socket("127.0.0.1",9000);

in=new BufferedReader(new InputStreamReader(s.getInputStream()));

out=new PrintWriter(s.getOutputStream());

} catch (UnknownHostException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

public void receive(){

while(true){

try {

String text=in.readLine();

this.jta.append(text+"\n");

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

return;

}

}

}

public void send(){

String text=this.jtf.getText();

this.jtf.setText("");

out.println(text);

out.flush();

}

}

//服务器端的

import java.net.*;

import java.io.*;

import java.util.*;

public class ChatServer {

public static void main(String[] args) throws Exception {

ServerSocket ss=new ServerSocket(9000);

List list=new ArrayList();

while(true){

Socket s=ss.accept();

list.add(s);

Thread t=new ServerThread(s,list);

t.start();

}

}

}

class ServerThread extends Thread{

Socket s;

List list;

BufferedReader in;

PrintWriter out;

public ServerThread(Socket s, List list) {

this.s = s;

this.list = list;

try {

in=new BufferedReader(new InputStreamReader(s.getInputStream()));

out=new PrintWriter(s.getOutputStream());

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

public void run(){

while(true){

try {

String str=in.readLine();

if (str==null) return;

Iterator it=list.iterator();

while(it.hasNext()){

Socket socket=(Socket)(it.next());

PrintWriter o=new PrintWriter(socket.getOutputStream());

o.println(str);

o.flush();

}

} catch (IOException e) {

// TODO Auto-generated catch block

//e.printStackTrace();

return;

}

}

}

}