上传文件至 'project'

project/Article.java

@@ -0,0 +1,58 @@
+package model;
+
+public class Article {
+    private String title;
+    private String content;
+    private String url;
+    private String source;
+    
+    public Article() {
+    }
+    
+    public Article(String title, String content, String url, String source) {
+        this.title = title;
+        this.content = content;
+        this.url = url;
+        this.source = source;
+    }
+    
+    public String getTitle() {
+        return title;
+    }
+    
+    public void setTitle(String title) {
+        this.title = title;
+    }
+    
+    public String getContent() {
+        return content;
+    }
+    
+    public void setContent(String content) {
+        this.content = content;
+    }
+    
+    public String getUrl() {
+        return url;
+    }
+    
+    public void setUrl(String url) {
+        this.url = url;
+    }
+    
+    public String getSource() {
+        return source;
+    }
+    
+    public void setSource(String source) {
+        this.source = source;
+    }
+    
+    @Override
+    public String toString() {
+        return "【" + source + "】" + title + "\n" +
+               "链接：" + url + "\n" +
+               "内容：" + (content != null && content.length() > 100 ? 
+                          content.substring(0, 100) + "..." : content);
+    }
+}

project/CrawlerController.java

@@ -0,0 +1,122 @@
+package controller;
+
+import view.ConsoleView;
+import model.Article;
+import strategy.*;
+import command.*;
+import java.util.ArrayList;
+import java.util.List;
+
+public class CrawlerController {
+    private ConsoleView view;
+    private List<Article> articles;
+    private List<CrawlStrategy> strategies;
+    
+    public CrawlerController() {
+        this.view = new ConsoleView();
+        this.articles = new ArrayList<>();
+        this.strategies = new ArrayList<>();
+        
+        strategies.add(new JjwxcStrategy());
+        strategies.add(new BaiduStrategy());
+        strategies.add(new HttpBinStrategy());
+        strategies.add(new BingStrategy());
+    }
+    
+    public ConsoleView getView() {
+        return view;
+    }
+    
+    public List<Article> getArticles() {
+        return articles;
+    }
+    
+    public void addArticle(Article article) {
+        articles.add(article);
+    }
+    
+    public void clearArticles() {
+        articles.clear();
+    }
+    
+    public String[] getStrategyNames() {
+        String[] names = new String[strategies.size()];
+        for (int i = 0; i < strategies.size(); i++) {
+            names[i] = strategies.get(i).getName();
+        }
+        return names;
+    }
+    
+    public void run() {
+        view.showWelcome();
+        view.showHelp();
+        
+        boolean running = true;
+        while (running) {
+            String input = view.getInput();
+            
+            if (input.isEmpty()) {
+                continue;
+            }
+            
+            switch (input) {
+                case "1":
+                case "jjwxc":
+                    executeCommand(new CrawlCommand(strategies.get(0), this));
+                    break;
+                    
+                case "2":
+                case "baidu":
+                    executeCommand(new CrawlCommand(strategies.get(1), this));
+                    break;
+                    
+                case "3":
+                case "httpbin":
+                    executeCommand(new CrawlCommand(strategies.get(2), this));
+                    break;
+                    
+                case "4":
+                case "bing":
+                    executeCommand(new CrawlCommand(strategies.get(3), this));
+                    break;
+                    
+                case "all":
+                    crawlAll();
+                    break;
+                    
+                case "list":
+                    executeCommand(new ListCommand(this));
+                    break;
+                    
+                case "save":
+                    executeCommand(new SaveCommand(this));
+                    break;
+                    
+                case "help":
+                    executeCommand(new HelpCommand(this));
+                    break;
+                    
+                case "exit":
+                case "quit":
+                    running = false;
+                    view.showGoodbye();
+                    break;
+                    
+                default:
+                    view.showError("未知命令: " + input + "，输入 help 查看帮助");
+            }
+        }
+    }
+    
+    private void executeCommand(Command command) {
+        command.execute();
+    }
+    
+    private void crawlAll() {
+        view.showMessage("\n开始爬取所有网站...\n");
+        for (CrawlStrategy strategy : strategies) {
+            executeCommand(new CrawlCommand(strategy, this));
+        }
+        view.showMessage("\n全部爬取完成！共 " + articles.size() + " 条数据");
+    }
+}

project/NetworkException.java

@@ -0,0 +1,26 @@
+package exception;
+
+public class NetworkException extends SpiderException {
+    public enum ErrorType {
+        CONNECTION_TIMEOUT,
+        CONNECTION_REFUSED,
+        HOST_NOT_FOUND,
+        RESPONSE_ERROR
+    }
+    
+    private final ErrorType errorType;
+    
+    public NetworkException(String message, ErrorType errorType) {
+        super(message);
+        this.errorType = errorType;
+    }
+    
+    public NetworkException(String message, ErrorType errorType, Throwable cause) {
+        super(message, cause);
+        this.errorType = errorType;
+    }
+    
+    public ErrorType getErrorType() {
+        return errorType;
+    }
+}

project/ParseException.java

@@ -0,0 +1,20 @@
+package exception;
+
+public class ParseException extends SpiderException {
+    public enum ErrorType {
+        INVALID_HTML,
+        TAG_NOT_FOUND,
+        REGEX_ERROR
+    }
+    
+    private final ErrorType errorType;
+    
+    public ParseException(String message, ErrorType errorType) {
+        super(message);
+        this.errorType = errorType;
+    }
+    
+    public ErrorType getErrorType() {
+        return errorType;
+    }
+}

project/SpiderException.java

@@ -0,0 +1,11 @@
+package exception;
+
+public class SpiderException extends Exception {
+    public SpiderException(String message) {
+        super(message);
+    }
+    
+    public SpiderException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}