java通信系统代码 java通讯系统

谁能帮我写一段java程序互相通信的代码服务器:
import java.io.*;
import java.net.*;
import java.util.*;
public class TalkServer{
public static void main(String[] args){
try{
ServerSocket server = new ServerSocket(6666);
Socket socket = server.accept();
String line = null;
BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
PrintWriter pw = new PrintWriter(socket.getOutputStream());
BufferedReader br2 = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Client:"br.readLine());
line = br2.readLine();
while(!line.equals("bye")){
pw.println(line);
pw.flush();
System.out.println("Server:"line);
System.out.println("Client:"br.readLine());
line = br2.readLine();
}
br.close();
pw.close();
socket.close();
server.close();
}catch(Exception e){
System.out.println("Error:"e);
}
}
}
客户端:
import java.io.*;
import java.net.*;
import java.util.*;
public class TalkClient{
public static void main(String[] args){
try{
Socket socket = new Socket("127.0.0.1",6666);
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
PrintWriter pw = new PrintWriter(socket.getOutputStream());
BufferedReader br2 = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String readLine = null;
readLine = br.readLine();
while(!readLine.equals("bye")){
pw.println(readLine);
pw.flush();
System.out.println("Client:"readLine);
System.out.println("Server:"br2.readLine());
readLine = br.readLine();
}
br.close();
pw.close();
socket.close();
}catch(Exception e){
System.out.println("Client Error:"e);
}
}
}
java实现串口通信代码public static void process() {
try {
Enumeration portList = CommPortIdentifier.getPortIdentifiers();
while (portList.hasMoreElements())
{
CommPortIdentifier portId = (CommPortIdentifier) portList.nextElement();
if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL)//如果端口类型是串口则判断名称
{
if(portId.getName().equals("COM1")){//如果是COM1端口则退出循环
break;
}else{
portId=null;
}
}
}
SerialPort serialPort = (SerialPort)portId.open("Serial_Communication", 1000);//打开串口的超时时间为1000ms
serialPort.setSerialPortParams(9600,SerialPort.DATABITS_8,SerialPort.STOPBITS_1,SerialPort.PARITY_NONE);//设置串口速率为9600,数据位8位 , 停止位1们,奇偶校验无
InputStream in = serialPort.getInputStream();//得到输入流
OutputStream out = serialPort.getOutputStream();//得到输出流
//进行输入输出操作
//操作结束后
in.close();
out.close();
serialPort.close();//关闭串口
} catch (PortInUseException e) {
e.printStackTrace();
} catch (UnsupportedCommOperationException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
java通讯录管理系统设计代码怎么编译java编写这个通讯录管理系统
java编写这个通讯录管理系统_Java如何实现通讯录管理系统
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Java如何实现通讯录管理系统
发布时间:2020-07-28 09:39:42
来源:亿速云
阅读:65
作者:Leah
这篇文章将为大家详细讲解有关Java如何实现通讯录管理系统,文章内容质量较高,因此小编分享给大家做个参考 , 希望大家阅读完这篇文章后对相关知识有一定的了解 。
本文实例为大家分享了java实现通讯录管理系统的具体代码,供大家参考,具体内容如下
完成项目的流程:
1.根据需求 , 确定大体方向
2.功能模块分析
3.界面实现
4.功能模块设计
5.coding
6.代码测试
下面是源代码:import java.awt.Container;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Scanner;
import java.util.concurrent.SynchronousQueue;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.WindowConstants;
import javax.swing.text.html.HTMLDocument.Iterator;
【java通信系统代码 java通讯系统】class Infro{
public String id;
public String name;
public String sex;
public String address;
public String e_mail;
public String phoneNumber;
static int index = 0;
static ArrayList list = new ArrayList();
static int len = list.size();
//构造函数
public Infro(String id,String name,String sex,String address,String e_mail,String phoneNumber){
this.id = id;
this.name = name;
this.sex = sex;
this.address = address;
this.e_mail = e_mail;
this.phoneNumber = phoneNumber;
}
public String toString(){
return "编号:" id " 姓名:" name " 性别:" sex " 通讯地址:" address " 邮箱地址:" e_mail " 电话:" phoneNumber;
}
/**
* 添加功能
**/
public static void addFunction(){//添加功能
Infro infro = new Infro("","","","","","");
System.out.println("请输入添加的数据:");
Scanner in = new Scanner(System.in);
System.out.println("输入编号:");
infro.id = in.next();
System.out.println("输入姓名:");
infro.name = in.next();
System.out.println("输入性别:");
infro.sex = in.next();
System.out.println("输入通讯地址:");
infro.address = in.next();
System.
out.println("输入邮箱地址:");
infro.e_mail = in.next();
System.out.println("输入电话:");
infro.phoneNumber = in.next();
list.add(index,infro);
index;
if(list.isEmpty()){
System.out.println("数据添加失败啦");
}else{
System.out.println("数据添加成功啦");
len;//list集合长度加一
// System.out.println(list.get(0).toString());
}
}
// public static void deleteFunction(){//删除功能
// System.out.println("输入要删除的联系人的编号");
// Scanner in_2 = new Scanner(System.in);
// String d1 = in_2.nextLine();
// for(int a= 0; a
// if(d1.equals(list.get(a).id)){
// list.remove(list.get(a));
// len --;
// }
// }
// }
/**
* 删除功能
**/
public static void deleteFunction(){
System.out.println("输入要删除的联系人的编号");
Scanner in_2 = new Scanner(System.in);
String d1 = in_2.nextLine();
java.util.Iterator it = list.iterator();
while (it.hasNext()){
Infro infro = it.next();
if (infro.id.equals(d1)){
it.remove();
--index;//一定要加这个 , 否则当做了删除操作再做添加操作的时候会出现异常(类似于指针,栈)
System.out.println("删除完毕" "此时通讯录记录条数为:"--len);
}
}
}
/**
* 修改功能
**/
public static void reditFunction(){
System.out.println("输入要修改的通讯录的Id");
Scanner in_r = new Scanner(System.in);
String r1 = in_r.nextLine();
for(int a = 0; alen;a){
if(r1.equals(list.get(a).id)){
System.out.println("输入修改后的姓名:");
String name_1 = in_r.next();
list.get(a).name = name_1;
System.out.println("输入修改后的性别:");
String sex_1 = in_r.next();
list.get(a).sex = sex_1;
System.out.println("输入修改后的通讯地址:");
String address_1 = in_r.next();
list.get(a).address = address_1;
System.out.println("输入修改后的邮箱地址:");
String e_mail_1 = in_r.next();
list.get(a).e_mail = e_mail_1;
System.out.println("输入修改后的电话:");
String phoneNumber_1 = in_r.next();
list.get(a).phoneNumber = phoneNumber_1;
System.out.println("数据修改完毕");
}
}
}
/**
* 查询功能
**/
public static void searchFunction() throws Exception{//查询功能
System.out.println("请输入要查询的姓名:");
Scanner in_1 = new Scanner(System.in);
String s1=in_1.nextLine();
for(int a= 0; a
if(s1.equals(list.get(a).name)){
System.out.println(list.get(a).toString());
}
}
}
/**
* 显示功能
**/
public static void showFunction(){
for(int i = 0 ;i
System.out.println(list.get(i).toString());
}
}
/**
* 保存功能
**/
public static void writeFunction() throws IOException{
FileWriter writer = new FileWriter("通讯录管理.txt");
for(int i = 0 ;i
String []strwriter = new String[len];
strwriter[i]=list.get(i).toString();
writer.write(strwriter[i]);
writer.write("\r\n");
System.out.println("成功写入一行数据到 通讯录管理.txt 中");
}
writer.close();//关闭写入流,释放资源
}
/**
* 读取功能
**/
public static void readFunction() throws IOException{
FileReader reader = new FileReader("通讯录管理.txt");
BufferedReader br = new BufferedReader(reader);
String str;
while((str = br.readLine()) != null){//每次读取一行文本 , 判断是否到达文件尾
System.out.println(str);
}
br.close();
}
}
public class Demo extends JFrame {
/**
* 界面设计
**/
public Demo(){
Container c = getContentPane(); //定义一个顶级容器c
JPanel jp = new JPanel(); //新建JPanel面板--jp
JButton button1 = new JButton("新建联系人");
JButton button2 = new JButton("删除联系人");
JButton button3 = new JButton("编辑联系人");
JButton button4 = new JButton("查找联系人");
JButton button5 = new JButton("显示所有联系人");
JButton button6 = new JButton("保存联系人到本地");
JButton button7 = new JButton("读取本地联系人");
jp.setLayout(new GridLayout(2,4,5,5));//新建网格布局管理器(行数,列数,组件间的水平垂直间距)
jp.add(button1);
jp.add(button2);
jp.add(button3);
jp.add(button4);
jp.add(button5);
jp.add(button6);
jp.add(button7);
c.add(jp);//将JPanel面板jp添加到顶级容器c中
setSize(600,500);
setTitle("*通 讯 录 管 理 系 统*");
setVisible(true);
setResizable(false);//窗体大小由程序员决定,用户不能自由改变大小
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
/**
*按键响应
*
**/
button1.addActionListener(new ActionListener(){//添加功能实现
public void actionPerformed(ActionEvent arg0){
Infro.addFunction();
}
});
button2.addActionListener(new ActionListener(){//删除功能实现
public void actionPerformed(ActionEvent arg0){
Infro.deleteFunction();
}
});
button3.addActionListener(new ActionListener(){//修改功能实现
public void actionPerformed(ActionEvent arg0){
Infro.reditFunction();
}
});
button4.addActionListener(new ActionListener(){//查询功能实现
public void actionPerformed(ActionEvent arg0){
try {
Infro.searchFunction();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
button5.addActionListener(new ActionListener(){//显示功能实现
public void actionPerformed(ActionEvent arg0){
Infro.showFunction();
}
});
button6.addActionListener(new ActionListener(){//保存功能实现
public void actionPerformed(ActionEvent arg0){
try {
Infro.writeFunction();
} catch (IOException e) {
e.printStackTrace();
}
}
});
button7.addActionListener(new ActionListener(){//读取功能实现
public void actionPerformed(ActionEvent arg0){
try {
Infro.readFunction();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
}
public static void main(String[] args) {
// TODO Auto-generated method stub
new Demo();
Infro a = new Infro("", "", "", "", "", "");
}
}
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