Client and Server projects

clientSocket/clientSocket.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" />
+    <orderEntry type="library" name="flatlaf-2.4" level="project" />
+  </component>
+</module>

clientSocket/out/production/clientSocket/META-INF/MANIFEST.MF

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+Manifest-Version: 1.0
+Main-Class: maranoClient
+

clientSocket/src/META-INF/MANIFEST.MF

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+Manifest-Version: 1.0
+Main-Class: maranoClient
+

clientSocket/src/maranoClient.form

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+<?xml version="1.0" encoding="UTF-8"?>
+<form xmlns="http://www.intellij.com/uidesigner/form/" version="1" bind-to-class="maranoClient">
+  <grid id="27dc6" binding="jPanel1" layout-manager="GridLayoutManager" row-count="8" column-count="5" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+    <margin top="0" left="0" bottom="0" right="0"/>
+    <constraints>
+      <xy x="20" y="20" width="521" height="400"/>
+    </constraints>
+    <properties/>
+    <border type="none"/>
+    <children>
+      <component id="5f2b" class="javax.swing.JTextField" binding="txtIpPorta">
+        <constraints>
+          <grid row="2" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false">
+            <preferred-size width="150" height="-1"/>
+          </grid>
+        </constraints>
+        <properties>
+          <text value="localhost:5000"/>
+        </properties>
+      </component>
+      <component id="a5782" class="javax.swing.JTextField" binding="txtOp">
+        <constraints>
+          <grid row="4" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false">
+            <preferred-size width="150" height="-1"/>
+          </grid>
+        </constraints>
+        <properties/>
+      </component>
+      <hspacer id="328b5">
+        <constraints>
+          <grid row="4" column="0" row-span="1" col-span="1" vsize-policy="1" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </hspacer>
+      <vspacer id="c3c25">
+        <constraints>
+          <grid row="7" column="1" row-span="1" col-span="1" vsize-policy="6" hsize-policy="1" anchor="0" fill="2" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </vspacer>
+      <vspacer id="a909c">
+        <constraints>
+          <grid row="0" column="1" row-span="1" col-span="1" vsize-policy="6" hsize-policy="1" anchor="0" fill="2" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </vspacer>
+      <component id="ddffa" class="javax.swing.JButton" binding="btnInvio">
+        <constraints>
+          <grid row="6" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <text value="Invio"/>
+        </properties>
+      </component>
+      <hspacer id="c1a43">
+        <constraints>
+          <grid row="4" column="2" row-span="1" col-span="1" vsize-policy="1" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </hspacer>
+      <component id="30b4" class="javax.swing.JTextField" binding="txtRisultato">
+        <constraints>
+          <grid row="5" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false">
+            <preferred-size width="150" height="-1"/>
+          </grid>
+        </constraints>
+        <properties>
+          <editable value="false"/>
+        </properties>
+      </component>
+      <component id="97cfd" class="javax.swing.JButton" binding="btnCollega">
+        <constraints>
+          <grid row="2" column="2" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <text value="Collega"/>
+        </properties>
+      </component>
+      <component id="4cba" class="javax.swing.JLabel">
+        <constraints>
+          <grid row="1" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <text value="IP e porta: "/>
+        </properties>
+      </component>
+      <component id="dafe9" class="javax.swing.JLabel">
+        <constraints>
+          <grid row="3" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <text value="Operazione: (exit per terminare la connessione)"/>
+        </properties>
+      </component>
+    </children>
+  </grid>
+</form>

clientSocket/src/maranoClient.java

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+import com.formdev.flatlaf.FlatDarkLaf;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.net.Socket;
+import java.util.Locale;
+
+import static java.lang.System.exit;
+
+/**
+ * La classe maranoClient, sottoclasse di JFrame, è il client GUI che gestisce la connessione da/a un server (di default locale)
+ * @author Andrea Marano
+ * @version 1.0
+ */
+public class maranoClient extends JFrame {
+
+    /**
+     * Contiene l'indirizzo ip e la porta del server
+     */
+    private JTextField txtIpPorta;
+
+    /**
+     * Contiene l'espressione matematica da inviare al server
+     */
+    private JTextField txtOp;
+
+    /**
+     * Invia i dati al server
+     */
+    private JButton btnInvio;
+
+    /**
+     * Il risultato dell'espressione matematica ricevuto dal server
+     */
+    private JTextField txtRisultato;
+
+    /**
+     * Container che contiene tutti i componenti grafici utilizzati
+     */
+    private JPanel jPanel1;
+
+    /**
+     * Esegue la connessione verso il server utilizzando l'ip e porta specificati da txtIpPorta
+     */
+    private JButton btnCollega;
+
+    /**
+     * Flusso di dati in input (dal server al client)
+     */
+    private DataInputStream socketInput;
+
+    /**
+     * Flusso di dati in output (dal client al server)
+     */
+    private DataOutputStream socketOutput;
+
+    /**
+     * Gestisce la connessione client/server
+     */
+    private Socket clientSocket;
+
+    /**
+     * Apertura della connessione verso l'indirizzo IP e porta specificati in input
+     * @param ip l'ip del server
+     * @param porta La porta aperta del server
+     * @throws IOException se la connessione al server fallisce
+     */
+    public void start(String ip, int porta) throws IOException {
+
+        clientSocket = new Socket(ip,porta);
+    }
+
+    /**
+     * Terminazione della connessione, dei relativi stream e chiusura del client
+     * @throws IOException se la chiusura delle connessioni o stream fallisce
+     */
+    public void stop() throws IOException {
+
+        socketInput.close();
+        socketOutput.close();
+        clientSocket.close();
+        exit(0);
+    }
+
+    /**
+     * Invio dell'operazione da svolgere al server e lettura del risultato
+     * @param operazione l'espressione matematica che il server deve risolvere
+     * @throws IOException se la lettura/scrittura dei dati da/a il server fallisce o se il metodo stop() lancia un'eccezzione
+     */
+    public void work(String operazione) throws IOException {
+
+        socketInput = new DataInputStream(clientSocket.getInputStream());
+        socketOutput = new DataOutputStream(clientSocket.getOutputStream());
+
+        socketOutput.writeUTF(operazione);
+        String msg = socketInput.readUTF();
+        txtRisultato.setText(msg);
+
+        if(operazione.toLowerCase(Locale.ROOT).equals("exit"))
+        {
+            stop();
+        }
+    }
+
+
+    /**
+     * Costruttore di default
+     */
+    public maranoClient() {
+
+        btnInvio.setEnabled(false);
+
+        btnInvio.addActionListener(new ActionListener() {
+            /**
+             * Invoked when an action occurs.
+             * Invia l'espressione matematica al server tramite un socket
+             * @param e the event to be processed
+             */
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                try
+                {
+                    if(!txtOp.getText().isEmpty())
+                        work(txtOp.getText());
+                }
+                catch (Exception ex)
+                {
+                    JOptionPane.showMessageDialog(null, ex.getMessage(), "Errore", JOptionPane.ERROR_MESSAGE);
+                }
+            }
+        });
+
+        btnCollega.addActionListener(new ActionListener() {
+            /**
+             * Invoked when an action occurs.
+             * Collegamento al server
+             * @param e the event to be processed
+             */
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                try
+                {
+                    if(!txtIpPorta.getText().isEmpty()) {
+                        String ip = txtIpPorta.getText().split(":")[0];
+                        int porta = Integer.parseInt(txtIpPorta.getText().split(":")[1]);
+                        start(ip,porta);
+                    }
+
+                    btnCollega.setEnabled(false);
+                    btnInvio.setEnabled(true);
+                }
+                catch (Exception ex)
+                {
+                    JOptionPane.showMessageDialog(null, ex.getMessage(), "Errore", JOptionPane.ERROR_MESSAGE);
+                }
+            }
+        });
+    }
+
+    /**
+     * Metodo main del client
+     * @param args argomenti del metodo main
+     */
+    public static void main(String[] args) {
+        FlatDarkLaf.setup();
+        JFrame frame = new maranoClient();
+        frame.setTitle("Client");
+        frame.setContentPane(new maranoClient().jPanel1);
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.pack();
+        frame.setSize(new Dimension(480,360));
+        frame.setVisible(true);
+        frame.setResizable(false);
+    }
+
+
+}

serverSocket/out/production/serverSocket/META-INF/MANIFEST.MF

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+Manifest-Version: 1.0
+Main-Class: maranoServer
+

serverSocket/serverSocket.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" />
+    <orderEntry type="library" name="MathParser.org-mXparser" level="project" />
+    <orderEntry type="library" name="serverSocket" level="project" />
+    <orderEntry type="library" name="maranoServerSocket" level="project" />
+  </component>
+</module>

serverSocket/src/META-INF/MANIFEST.MF

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+Manifest-Version: 1.0
+Main-Class: maranoServer
+