diff --git a/w9/Article.java b/w9/Article.java new file mode 100644 index 0000000..da8236c --- /dev/null +++ b/w9/Article.java @@ -0,0 +1,67 @@ +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, String author, String publishDate) { + 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 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 + '\'' + + ", url='" + url + '\'' + + ", author='" + author +'\'' + + ", publishDate='" + publishDate +'\'' + +'}'; + } +} \ No newline at end of file diff --git a/w9/Command.java b/w9/Command.java new file mode 100644 index 0000000..f6e49b5 --- /dev/null +++ b/w9/Command.java @@ -0,0 +1,9 @@ +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
articles); +} diff --git a/w9/ConsoleView.java b/w9/ConsoleView.java new file mode 100644 index 0000000..f180f05 --- /dev/null +++ b/w9/ConsoleView.java @@ -0,0 +1,42 @@ +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[92m"; + private static final String ANSI_RED = "\u001B[91m"; + private static final String ANSI_BLUE = "\u001B[94m"; + + 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
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() + " | " + a.getAuthor() + " | " + a.getPublishDate()); + } + } +} diff --git a/w9/CrawlerController.java b/w9/CrawlerController.java new file mode 100644 index 0000000..24a62f0 --- /dev/null +++ b/w9/CrawlerController.java @@ -0,0 +1,49 @@ +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.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +public class CrawlerController { + private final Map commands = new HashMap<>(); + private final ConsoleView view; + private final List
articles; + private final List history = new ArrayList<>(); + + public CrawlerController(ConsoleView view, List
articles) { + this.view = view; + this.articles = articles; + register(new HelpCommand(view)); + register(new ListCommand(view)); + register(new CrawlCommand(view)); + register(new ExitCommand(view)); + register(new HistoryCommand(view,history)); + commands.put("c", new CrawlCommand(view)); + } + + private void register(Command command) { + commands.put(command.getName(), command); + } + + public void handle(String input) { + String text = input == null ? "" : input.trim(); + if (text.isEmpty()) { + return; + } + + String[] args = text.split("\\s+"); + String cmdName = args[0].toLowerCase(); + Command command = commands.get(cmdName); + if (command == null) { + view.printError("Unknown command: " + cmdName); + return; + } + history.add(command.getName()); + command.execute(args, articles); + } +} diff --git a/w9/Main.java b/w9/Main.java new file mode 100644 index 0000000..8467e28 --- /dev/null +++ b/w9/Main.java @@ -0,0 +1,21 @@ +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
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()); + } + } +}