Commit #1

Загрузка простого пользовательского чата

client/client.iml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="jdk" jdkName="13.0.1" jdkType="JavaSDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module" module-name="network" />
+  </component>
+</module>

client/src/com/example/client/ClientWindow.java

@@ -0,0 +1,110 @@
+package com.example.client;
+
+import com.example.network.TCPConnection;
+import com.example.network.TCPConnectionEvents;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.IOException;
+
+/**
+ * Клиентское окно
+ * SERVER_HOST - адрес сервера
+ * PORT - порт
+ * WIDTH - ширина окна
+ * HEIGHT - высота окна
+ * chatWindow - окно чата
+ * nickName - поле для ввода имени клиента
+ * nick - метка для указания на поле ввода имени
+ * message - метка для указания на поле ввода сообщения
+ * inputMessage - поле для написания и отправки сообщения
+ * connection - соединение с сервером
+ */
+public class ClientWindow extends JFrame implements ActionListener, TCPConnectionEvents {
+
+    private static final String SERVER_HOST = "localhost";
+    private static final int PORT = 3443;
+
+    public static void main(String[] args) {
+        SwingUtilities.invokeLater(new Runnable() {
+            @Override
+            public void run() {
+                new ClientWindow(600, 400);
+            }
+        });
+    }
+
+    private final JTextArea chatWindow = new JTextArea();
+    private final JTextField nickName = new JTextField();
+    private final JTextField inputMessage = new JTextField();
+
+    private TCPConnection connection;
+
+    private ClientWindow(int WIDTH, int HEIGHT){
+        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
+        setSize(WIDTH, HEIGHT);
+        setLocationRelativeTo(null);
+        setAlwaysOnTop(true);
+
+        chatWindow.setEditable(false);
+        chatWindow.setLineWrap(true);
+        add(chatWindow, BorderLayout.CENTER);
+
+        inputMessage.addActionListener(this);
+        add(nickName, BorderLayout.NORTH);
+        add(inputMessage, BorderLayout.SOUTH);
+
+        setVisible(true);
+        try {
+            connection = new TCPConnection(this, SERVER_HOST, PORT);
+        } catch (IOException e) {
+            printMessage("Connection exception: " + e);
+        }
+    }
+
+
+    @Override
+    public void actionPerformed(ActionEvent e) {
+        String msg = inputMessage.getText();
+        if (msg.equals(""))
+        {
+            return;
+        }
+        inputMessage.setText(null);
+        connection.sendMessage(nickName.getText() + ": " + msg);
+    }
+
+    @Override
+    public void onConnectionReady(TCPConnection tcpConnection) {
+        printMessage("Connection ready...");
+    }
+
+    @Override
+    public void onReceiveString(TCPConnection tcpConnection, String line) {
+        printMessage(line);
+    }
+
+    @Override
+    public void onDisconnect(TCPConnection tcpConnection) {
+        printMessage("Connection close");
+
+    }
+
+    @Override
+    public void onException(TCPConnection tcpConnection, Exception e) {
+         printMessage("Connection exception: " + e);
+    }
+
+    private synchronized void printMessage(String message){
+        SwingUtilities.invokeLater(new Runnable() {
+            @Override
+            public void run() {
+                chatWindow.append(message + "\n");
+                chatWindow.setCaretPosition(chatWindow.getDocument().getLength());
+            }
+        });
+    }
+
+}

network/network.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

network/src/META-INF/MANIFEST.MF

@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+Main-Class: com.example.client.ClientWindow
+