上传文件至 'w12'

w12/BlogStrategy.java

@@ -0,0 +1,34 @@
+package com.example.datacollect.strategy;
+
+import com.example.datacollect.exception.ParseException;
+import com.example.datacollect.model.Article;
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Pattern;
+
+public class BlogStrategy implements CrawlStrategy {
+    private static final Pattern URL_PATTERN = Pattern.compile("https?://blog\\.example\\.com/.*");
+
+    @Override
+    public boolean supports(String url) {
+        return URL_PATTERN.matcher(url).matches();
+    }
+
+    @Override
+    public List<Article> parse(String url, Document doc) throws ParseException {
+        List<Article> articles = new ArrayList<>();
+        Elements titles = doc.select(".post-title");
+        for (Element e : titles) {
+            articles.add(new Article(e.text(), url, ""));
+        }
+        return articles;
+    }
+
+    @Override
+    public int getPriority() {
+        return 2;
+    }
+}

w12/CrawlStrategy.java

@@ -0,0 +1,15 @@
+package com.example.datacollect.strategy;
+
+import com.example.datacollect.exception.ParseException;
+import com.example.datacollect.model.Article;
+import org.jsoup.nodes.Document;
+import java.util.List;
+
+public interface CrawlStrategy {
+    List<Article> parse(String url, Document doc) throws ParseException;
+    boolean supports(String url);
+    
+    default int getPriority() {
+        return 0;
+    }
+}

w12/DefaultStrategy.java

@@ -0,0 +1,57 @@
+package com.example.datacollect.strategy;
+
+import com.example.datacollect.exception.ParseException;
+import com.example.datacollect.model.Article;
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Pattern;
+
+public class DefaultStrategy implements CrawlStrategy {
+    private static final Pattern URL_PATTERN = Pattern.compile("https?://[\\w\\-.]+(?:/[\\w\\-./?%&=]*)?");
+
+    @Override
+    public boolean supports(String url) {
+        return true;
+    }
+
+    @Override
+    public List<Article> parse(String url, Document doc) throws ParseException {
+        List<Article> articles = new ArrayList<>();
+        
+        String title = doc.title();
+        
+        String content = "";
+        Element contentEl = doc.selectFirst("article, .article, #content, .content, main");
+        if (contentEl != null) {
+            content = contentEl.text().trim();
+        } else {
+            content = doc.body().text().trim();
+        }
+        
+        if (content.length() > 200) {
+            content = content.substring(0, 200) + "...";
+        }
+        
+        articles.add(new Article(title, url, content));
+        
+        Elements links = doc.select("a[href]");
+        for (Element link : links) {
+            String href = link.attr("abs:href");
+            String linkText = link.text().trim();
+            if (!linkText.isEmpty() && href.matches("https?://.*")) {
+                articles.add(new Article(linkText, href, ""));
+            }
+        }
+        
+        return articles;
+    }
+
+    @Override
+    public int getPriority() {
+        return Integer.MIN_VALUE;
+    }
+}

w12/HnuNewsStrategy.java

@@ -0,0 +1,58 @@
+package com.example.datacollect.strategy;
+
+import com.example.datacollect.exception.ParseException;
+import com.example.datacollect.model.Article;
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Pattern;
+
+public class HnuNewsStrategy implements CrawlStrategy {
+    private static final Pattern URL_PATTERN = Pattern.compile("https?://news\\.hnu\\.edu\\.cn/.*");
+
+    @Override
+    public boolean supports(String url) {
+        return URL_PATTERN.matcher(url).matches();
+    }
+
+    @Override
+    public List<Article> parse(String url, Document doc) throws ParseException {
+        List<Article> articles = new ArrayList<>();
+        Elements listItems = doc.select("ul.list11 li");
+
+        for (Element li : listItems) {
+            Element link = li.selectFirst("a");
+            if (link == null) continue;
+
+            String articleUrl = link.attr("href");
+            if (!articleUrl.startsWith("http")) {
+                articleUrl = "https://news.hnu.edu.cn" + articleUrl.replace("..", "");
+            }
+
+            String title = "";
+            Element titleEl = link.selectFirst("h4.l2.h4s2");
+            if (titleEl != null) {
+                title = titleEl.text().trim();
+            }
+
+            String content = "";
+            Element contentEl = link.selectFirst("p.l3.ps3");
+            if (contentEl != null) {
+                content = contentEl.text().trim();
+            }
+
+            if (!title.isEmpty()) {
+                articles.add(new Article(title, articleUrl, content));
+            }
+        }
+
+        return articles;
+    }
+
+    @Override
+    public int getPriority() {
+        return 3;
+    }
+}

w12/Main.java

@@ -0,0 +1,33 @@
+package com.example.datacollect;
+
+import com.example.datacollect.controller.CrawlerController;
+import com.example.datacollect.repository.ArticleRepository;
+import com.example.datacollect.strategy.StrategyFactory;
+import com.example.datacollect.view.ConsoleView;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class Main {
+    private static final Logger logger = LoggerFactory.getLogger(Main.class);
+
+    public static void main(String[] args) {
+        logger.info("Starting CLI Crawler application");
+        
+        ConsoleView view = new ConsoleView();
+        ArticleRepository repository = new ArticleRepository();
+        StrategyFactory strategyFactory = new StrategyFactory();
+        CrawlerController controller = new CrawlerController(view, repository, strategyFactory);
+
+        view.printSuccess("Welcome to CLI Crawler (w10_3)! Type help for commands.");
+        logger.debug("Application started successfully");
+        
+        while (true) {
+            try {
+                controller.handle(view.readLine());
+            } catch (Exception e) {
+                logger.error("Unexpected error in main loop", e);
+                view.printError("Unexpected error: " + e.getMessage());
+            }
+        }
+    }
+}