只上传Java代码文件

java-cli/src/main/java/com/example/datacollect/Main.java

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+package com.example.datacollect;
+
+import com.example.datacollect.controller.CrawlerController;
+import com.example.datacollect.model.Article;
+import com.example.datacollect.view.ConsoleView;
+import java.util.ArrayList;
+import java.util.List;
+
+public class Main {
+
+    public static void main(String[] args) {
+        ConsoleView view = new ConsoleView();
+        List<Article> articles = new ArrayList<>();
+        CrawlerController controller = new CrawlerController(view, articles);
+
+        view.printSuccess("Welcome to CLI Crawler (w9_1)! Type help for commands.");
+        while (true) {
+            controller.handle(view.readLine());
+        }
+    }
+}

java-cli/src/main/java/com/example/datacollect/command/Command.java

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+package com.example.datacollect.command;
+
+import com.example.datacollect.model.Article;
+import java.util.List;
+
+public interface Command {
+    String getName();
+    void execute(String[] args, List<Article> articles);
+
+    String getDescription();
+}

java-cli/src/main/java/com/example/datacollect/command/CrawlCommand.java

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+package com.example.datacollect.command;
+
+import com.example.datacollect.model.Article;
+import com.example.datacollect.view.ConsoleView;
+import java.util.List;
+
+public class CrawlCommand implements Command {
+    private final ConsoleView view;
+
+    public CrawlCommand(ConsoleView view) {
+        this.view = view;
+    }
+
+    @Override
+    public String getName() {
+        return "crawl";
+    }
+
+    @Override
+    public void execute(String[] args, List<Article> articles) {
+        if (args.length < 2) {
+            view.printError("Usage: crawl <url>");
+            return;
+        }
+        view.printInfo("Stub: would crawl " + args[1]);
+    }
+}

java-cli/src/main/java/com/example/datacollect/command/ExitCommand.java

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+package com.example.datacollect.command;
+
+import com.example.datacollect.model.Article;
+import com.example.datacollect.view.ConsoleView;
+import java.util.List;
+
+public class ExitCommand implements Command {
+    private final ConsoleView view;
+
+    public ExitCommand(ConsoleView view) {
+        this.view = view;
+    }
+
+    @Override
+    public String getName() {
+        return "exit";
+    }
+
+    @Override
+    public void execute(String[] args, List<Article> articles) {
+        view.printSuccess("Bye!");
+        System.exit(0);
+    }
+}

java-cli/src/main/java/com/example/datacollect/command/HelpCommand.java

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+package com.example.datacollect.command;
+
+import com.example.datacollect.model.Article;
+import com.example.datacollect.view.ConsoleView;
+import java.util.List;
+
+public class HelpCommand implements Command {
+    private final ConsoleView view;
+
+    public HelpCommand(ConsoleView view) {
+        this.view = view;
+    }
+
+    @Override
+    public String getName() {
+        return "help";
+    }
+
+    @Override
+    public void execute(String[] args, List<Article> articles) {
+        view.printInfo("Commands: crawl <url>, list, help, exit");
+    }
+}

java-cli/src/main/java/com/example/datacollect/command/HistoryCommand.java

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+package com.example.datacollect.command;
+import com.example.datacollect.model.Article;
+import com.example.datacollect.view.ConsoleView;
+
+import java.util.ArrayList;
+import java.util.List;
+public class HistoryCommand implements Command {
+    // 静态集合，全局记录用户输入的命令
+    private static final List<String> commandHistory = new ArrayList<>();
+
+    // 你们项目里的 View 类（和 ListCommand 一样）
+    private final ConsoleView view;
+
+    // 构造方法，接收 View（和 ListCommand 格式一致）
+    public HistoryCommand(ConsoleView view) {
+        this.view = view;
+    }
+
+    @Override
+    public String getName() {
+        return "history";
+    }
+
+    // ✅ 重点：execute 方法必须和 ListCommand 一样，带上 args 和 List<Article>
+    @Override
+    public void execute(String[] args, List<Article> articles) {
+        if (commandHistory.isEmpty()) {
+            view.printInfo("📜 还没有输入过任何命令哦~");
+            return;
+        }
+        view.printInfo("📜 你的历史命令列表：");
+        for (int i = 0; i < commandHistory.size(); i++) {
+            view.printInfo((i + 1) + ". " + commandHistory.get(i));
+        }
+    }
+
+    @Override
+    public String getDescription() {
+        return "history - 查看你输入过的所有命令";
+    }
+
+    // 静态方法：给 Controller 调用，记录用户输入
+    public static void record(String commandLine) {
+        commandHistory.add(commandLine);
+    }
+}
+

java-cli/src/main/java/com/example/datacollect/command/ListCommand.java

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+package com.example.datacollect.command;
+
+import com.example.datacollect.model.Article;
+import com.example.datacollect.view.ConsoleView;
+import java.util.List;
+
+public class ListCommand implements Command {
+    private final ConsoleView view;
+
+    public ListCommand(ConsoleView view) {
+        this.view = view;
+    }
+
+    @Override
+    public String getName() {
+        return "list";
+    }
+
+    @Override
+    public void execute(String[] args, List<Article> articles) {
+        view.display(articles);
+    }
+}

java-cli/src/main/java/com/example/datacollect/controller/CrawlerController.java

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+package com.example.datacollect.controller;
+
+import com.example.datacollect.command.*;
+import com.example.datacollect.model.Article;
+import com.example.datacollect.view.ConsoleView;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Scanner;
+
+
+public class CrawlerController {
+    // 成员变量（包含新增的 aliasMap）
+    private final Map<String, Command> commands = new HashMap<>();
+    private final ConsoleView view;
+    private final List<Article> articles;
+    private final Map<String, String> aliasMap = new HashMap<>(); // 1️⃣ 这里
+
+    // 构造方法
+    public CrawlerController(ConsoleView view, List<Article> articles) {
+        this.view = view;
+        this.articles = articles;
+
+        // 注册命令
+        register(new HelpCommand(view));
+        register(new ListCommand(view));
+        register(new CrawlCommand(view));
+        register(new ExitCommand(view));
+        register(new HistoryCommand(view));
+
+        // 2️⃣ 这里配置别名
+        aliasMap.put("h", "help");
+        aliasMap.put("c", "crawl");
+        aliasMap.put("l", "list");
+        aliasMap.put("hi", "history");
+        aliasMap.put("e", "exit");
+    }
+
+    // 原来的 register 方法，不用改
+    private void register(Command command) {
+        commands.put(command.getName(), command);
+    }
+
+    public void handle(String s) {
+        Scanner scanner = new Scanner(System.in);
+        while (true) {
+            System.out.print("> ");
+            String input = scanner.nextLine().trim();
+
+            // 3️⃣ 这里记录命令历史
+            HistoryCommand.record(input);
+
+            String[] parts = input.split("\\s+", 2);
+            String commandName = parts[0];
+            String[] args = parts.length > 1 ? parts[1].split("\\s+") : new String[0];
+
+            // 4️⃣ 这里解析别名
+            if (aliasMap.containsKey(commandName)) {
+                commandName = aliasMap.get(commandName);
+            }
+
+            // 分发命令（原来的逻辑）
+            if (commands.containsKey(commandName)) {
+                commands.get(commandName).execute(args, articles);
+            } else {
+                view.printError("未知命令/别名：" + commandName + "，输入 help 查看所有命令");
+            }
+        }
+    }
+}

java-cli/src/main/java/com/example/datacollect/model/Article.java

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+package com.example.datacollect.model;
+
+public class Article {
+    private String title;
+    private String url;
+    private String content;
+    private String author;
+    private String publishDate;
+
+
+    public Article(String title, String url, String content) {
+        this.title = title;
+        this.url = url;
+        this.content = content;
+        this.author=author;
+        this.publishDate=publishDate;
+
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getUrl() {
+        return url;
+    }
+
+    public void setUrl(String url) {
+        this.url = url;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public String get() {
+        return content;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
+    public String getPublishDate() {
+        return publishDate;
+    }
+
+    public void setPublishDate(String publishDate) {
+        this.publishDate = publishDate;
+    }
+
+
+
+    @Override
+    public String toString() {
+        return "Article{" +
+                "title='" + title + '\'' +
+                ", author='" + author + '\'' +
+                ", publishDate=" + publishDate +
+                ", url='" + url + '\'' +
+                ", content='" + content + '\'' +
+                '}';
+    }
+}

java-cli/src/main/java/com/example/datacollect/view/ConsoleView.java

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+package com.example.datacollect.view;
+
+import com.example.datacollect.model.Article;
+import java.util.List;
+import java.util.Scanner;
+
+public class ConsoleView {
+    private static final String ANSI_RESET = "\u001B[0m";
+    private static final String ANSI_GREEN = "\u001B[32m";
+    private static final String ANSI_RED = "\u001B[31m";
+    private static final String ANSI_BLUE = "\u001B[34m";
+
+    private final Scanner scanner = new Scanner(System.in);
+
+    public String readLine() {
+        System.out.print("> ");
+        return scanner.nextLine();
+    }
+
+    public void printSuccess(String msg) {
+        System.out.println(ANSI_GREEN + msg + ANSI_RESET);
+    }
+
+    public void printError(String msg) {
+        System.out.println(ANSI_RED + msg + ANSI_RESET);
+    }
+
+    public void printInfo(String msg) {
+        System.out.println(ANSI_BLUE + msg + ANSI_RESET);
+    }
+
+    public void display(List<Article> articles) {
+        if (articles.isEmpty()) {
+            printInfo("暂无文章，请先执行 crawl。");
+            return;
+        }
+        for (int i = 0; i < articles.size(); i++) {
+            Article a = articles.get(i);
+            System.out.println((i + 1) + ". " + a.getTitle() + " | " + a.getUrl());
+        }
+    }
+}