增加配置文件功能

.gitignore

@@ -36,3 +36,4 @@ build/
 /JNotepad/
 /src/main/JNotepad.java
 /.idea/
+/project.txt

src/main/java/org/jcnc/jnotepad/Interface/ConfigInterface.java

@@ -0,0 +1,9 @@
+package org.jcnc.jnotepad.Interface;
+
+import java.util.Properties;
+
+public interface ConfigInterface {
+    void showErrorAlert();
+    Properties readPropertiesFromFile();
+    void initializePropertiesFile();
+}

src/main/java/org/jcnc/jnotepad/LunchApp.java

@@ -4,18 +4,19 @@ import atlantafx.base.theme.PrimerLight;
 import javafx.application.Application;
 import javafx.application.Platform;
 import javafx.scene.Scene;
-
 import javafx.scene.image.Image;
 import javafx.scene.layout.Pane;
 import javafx.stage.Stage;
 import org.jcnc.jnotepad.constants.Constants;
 import org.jcnc.jnotepad.controller.manager.Controller;
+import org.jcnc.jnotepad.init.Config;
 import org.jcnc.jnotepad.ui.LineNumberTextArea;
 import org.jcnc.jnotepad.view.init.View;
 import org.jcnc.jnotepad.view.manager.ViewManager;
 
 import java.util.List;
 import java.util.Objects;
+import java.util.Properties;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 
@@ -30,6 +31,12 @@ public class LunchApp extends Application {
     @Override
     public void start(Stage primaryStage) {
 
+        Config config = new Config();
+
+        Properties properties = config.readPropertiesFromFile();
+        String title = properties.getProperty("title", "JNotepad");
+
+
         view = new View();
 
         Pane root = new Pane();
@@ -37,14 +44,13 @@ public class LunchApp extends Application {
 
         double width = Constants.SCREEN_WIDTH;
         double length = Constants.SCREEN_LENGTH;
-        String name = Constants.APP_NAME;
         String icon = Constants.APP_ICON;
 
         scene = new Scene(root, width, length);
         Application.setUserAgentStylesheet(new PrimerLight().getUserAgentStylesheet());
         scene.getStylesheets().add(Objects.requireNonNull(getClass().getResource("/css/styles.css")).toExternalForm());
 
-        primaryStage.setTitle(name);
+        primaryStage.setTitle(title);
         primaryStage.setWidth(width);
         primaryStage.setHeight(length);
         primaryStage.setScene(scene);

src/main/java/org/jcnc/jnotepad/constants/Constants.java

@@ -9,4 +9,8 @@ public class Constants {
     public static final double SCREEN_LENGTH = 600; //高度
     public static final String APP_NAME = "JNotepad";  //名字
     public static final String APP_ICON = "/img/icon.png"; //logo地址
+
+    //配置文件
+    public static final String PROPERTY_FILE_NAME = "project.txt"; //配置文件名字
+
 }

src/main/java/org/jcnc/jnotepad/init/Config.java

@@ -0,0 +1,40 @@
+package org.jcnc.jnotepad.init;
+
+import javafx.scene.control.Alert;
+import org.jcnc.jnotepad.Interface.ConfigInterface;
+
+import java.io.*;
+import java.util.Properties;
+
+import static org.jcnc.jnotepad.constants.Constants.PROPERTY_FILE_NAME;
+
+public class Config implements ConfigInterface {
+    public Properties readPropertiesFromFile() {
+        Properties properties = new Properties();
+        try (InputStream inputStream = new FileInputStream(PROPERTY_FILE_NAME)) {
+            properties.load(inputStream);
+        } catch (IOException e) {
+            initializePropertiesFile();
+        }
+        return properties;
+    }
+
+    public void initializePropertiesFile() {
+        Properties defaultProperties = new Properties();
+        defaultProperties.setProperty("title", "JNotepad");
+
+        try (OutputStream outputStream = new FileOutputStream(PROPERTY_FILE_NAME)) {
+            defaultProperties.store(outputStream, "JNotepad Properties");
+        } catch (IOException e) {
+            showErrorAlert();
+        }
+    }
+
+    public void showErrorAlert() {
+        Alert alert = new Alert(Alert.AlertType.ERROR);
+        alert.setTitle("错误");
+        alert.setHeaderText("文件读写错误");
+        alert.setContentText("文件读写错误");
+        alert.showAndWait();
+    }
+}