完成音乐爬虫项目

logs/crawler.log

@@ -0,0 +1,65 @@
+2026-05-29 23:18:06.182 [main] INFO  com.music.strategy.NetEaseStrategy - 开始爬取网易云热歌榜，限制 50 首
+2026-05-29 23:18:07.033 [main] ERROR com.music.strategy.NetEaseStrategy - 网易云爬取失败
+java.lang.NullPointerException: Cannot invoke "com.google.gson.JsonObject.getAsJsonArray(String)" because "result" is null
+	at com.music.strategy.NetEaseStrategy.crawl(NetEaseStrategy.java:35)
+	at com.music.command.CrawlCommand.execute(CrawlCommand.java:40)
+	at com.music.controller.CrawlerController.start(CrawlerController.java:52)
+	at com.music.App.main(App.java:17)
+2026-05-29 23:18:07.036 [main] ERROR com.music.command.CrawlCommand - 爬取异常
+com.music.exception.ParseException: 解析网易云数据失败: Cannot invoke "com.google.gson.JsonObject.getAsJsonArray(String)" because "result" is null
+	at com.music.strategy.NetEaseStrategy.crawl(NetEaseStrategy.java:79)
+	at com.music.command.CrawlCommand.execute(CrawlCommand.java:40)
+	at com.music.controller.CrawlerController.start(CrawlerController.java:52)
+	at com.music.App.main(App.java:17)
+Caused by: java.lang.NullPointerException: Cannot invoke "com.google.gson.JsonObject.getAsJsonArray(String)" because "result" is null
+	at com.music.strategy.NetEaseStrategy.crawl(NetEaseStrategy.java:35)
+	... 3 common frames omitted
+2026-05-29 23:19:31.271 [main] INFO  com.music.strategy.NetEaseStrategy - 开始爬取网易云热歌榜，限制 50 首
+2026-05-29 23:19:56.780 [main] INFO  com.music.strategy.NetEaseStrategy - 网易云爬取完成，共 50 首
+2026-05-29 23:19:56.805 [main] INFO  com.music.command.CrawlCommand - 爬取完成，平台=netease, 数量=50
+2026-05-29 23:21:00.898 [main] INFO  com.music.command.AnalyzeCommand - 分析报告已生成，共 50 首歌曲
+2026-05-29 23:21:21.127 [main] INFO  com.music.command.SaveCommand - 数据已保存到文件: result.csv
+2026-05-29 23:25:29.304 [main] INFO  com.music.strategy.QQStrategy - 开始爬取 QQ 音乐热歌榜，限制 50 首
+2026-05-29 23:25:30.367 [main] INFO  com.music.strategy.QQStrategy - QQ音乐爬取完成，共 20 首
+2026-05-29 23:25:30.368 [main] INFO  com.music.command.CrawlCommand - 爬取完成，平台=qq, 数量=20
+2026-05-29 23:26:13.206 [main] INFO  com.music.strategy.KuGouStrategy - 开始爬取酷狗热歌榜，限制 50 首
+2026-05-29 23:26:13.691 [main] ERROR com.music.strategy.KuGouStrategy - 酷狗爬取失败，使用模拟数据
+com.google.gson.JsonSyntaxException: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 12 path $
+	at com.google.gson.JsonParser.parseReader(JsonParser.java:76)
+	at com.google.gson.JsonParser.parseString(JsonParser.java:51)
+	at com.music.strategy.KuGouStrategy.crawl(KuGouStrategy.java:39)
+	at com.music.command.CrawlCommand.execute(CrawlCommand.java:40)
+	at com.music.controller.CrawlerController.start(CrawlerController.java:52)
+	at com.music.App.main(App.java:17)
+Caused by: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 12 path $
+	at com.google.gson.stream.JsonReader.syntaxError(JsonReader.java:1659)
+	at com.google.gson.stream.JsonReader.checkLenient(JsonReader.java:1465)
+	at com.google.gson.stream.JsonReader.doPeek(JsonReader.java:551)
+	at com.google.gson.stream.JsonReader.peek(JsonReader.java:433)
+	at com.google.gson.JsonParser.parseReader(JsonParser.java:71)
+	... 5 common frames omitted
+2026-05-29 23:26:13.695 [main] INFO  com.music.command.CrawlCommand - 爬取完成，平台=kugou, 数量=8
+2026-05-29 23:27:34.126 [main] INFO  com.music.strategy.KuGouStrategy - 开始爬取酷狗热歌榜，限制 50 首
+2026-05-29 23:27:34.611 [main] ERROR com.music.strategy.KuGouStrategy - 酷狗爬取失败，使用模拟数据
+com.google.gson.JsonSyntaxException: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 12 path $
+	at com.google.gson.JsonParser.parseReader(JsonParser.java:76)
+	at com.google.gson.JsonParser.parseString(JsonParser.java:51)
+	at com.music.strategy.KuGouStrategy.crawl(KuGouStrategy.java:39)
+	at com.music.command.CrawlCommand.execute(CrawlCommand.java:40)
+	at com.music.controller.CrawlerController.start(CrawlerController.java:52)
+	at com.music.App.main(App.java:17)
+Caused by: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 12 path $
+	at com.google.gson.stream.JsonReader.syntaxError(JsonReader.java:1659)
+	at com.google.gson.stream.JsonReader.checkLenient(JsonReader.java:1465)
+	at com.google.gson.stream.JsonReader.doPeek(JsonReader.java:551)
+	at com.google.gson.stream.JsonReader.peek(JsonReader.java:433)
+	at com.google.gson.JsonParser.parseReader(JsonParser.java:71)
+	... 5 common frames omitted
+2026-05-29 23:27:34.613 [main] INFO  com.music.command.CrawlCommand - 爬取完成，平台=kugou, 数量=8
+2026-05-29 23:28:00.192 [main] INFO  com.music.strategy.KuGouStrategy - 开始爬取酷狗热歌榜，限制 50 首
+2026-05-29 23:28:00.937 [main] INFO  com.music.strategy.KuGouStrategy - 酷狗爬取完成，真实数据 22 首
+2026-05-29 23:28:00.939 [main] INFO  com.music.command.CrawlCommand - 爬取完成，平台=kugou, 数量=22
+2026-05-29 23:28:29.618 [main] INFO  com.music.command.AnalyzeCommand - 分析报告已生成，共 22 首歌曲
+2026-05-29 23:33:25.068 [main] INFO  com.music.strategy.NetEaseStrategy - 开始爬取网易云热歌榜，限制 50 首
+2026-05-29 23:33:31.039 [main] INFO  com.music.strategy.NetEaseStrategy - 网易云爬取完成，共 50 首
+2026-05-29 23:33:31.042 [main] INFO  com.music.command.CrawlCommand - 爬取完成，平台=netease, 数量=50

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
+         http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.musiccrawler</groupId>
+    <artifactId>music-crawler</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <!-- Jsoup 解析 HTML -->
+        <dependency>
+            <groupId>org.jsoup</groupId>
+            <artifactId>jsoup</artifactId>
+            <version>1.16.1</version>
+        </dependency>
+        <!-- OkHttp 网络请求 -->
+        <dependency>
+            <groupId>com.squareup.okhttp3</groupId>
+            <artifactId>okhttp</artifactId>
+            <version>4.12.0</version>
+        </dependency>
+        <!-- Gson 解析 JSON -->
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <version>2.10.1</version>
+        </dependency>
+        <!-- Logback 日志 -->
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+            <version>1.4.14</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jsoup</groupId>
+            <artifactId>jsoup</artifactId>
+            <version>1.16.1</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+            </plugin>
+        </plugins>
+    </build>
+</project>

src/main/java/com/music/App.java

@@ -0,0 +1,19 @@
+package com.music;
+
+import com.music.controller.CrawlerController;
+import com.music.repository.SongRepository;
+import com.music.service.AnalyzerService;
+import com.music.strategy.StrategyFactory;
+import com.music.view.ConsoleView;
+
+public class App {
+    public static void main(String[] args) {
+        ConsoleView view = new ConsoleView();
+        SongRepository repository = new SongRepository();
+        StrategyFactory factory = new StrategyFactory();
+        AnalyzerService analyzer = new AnalyzerService();
+
+        CrawlerController controller = new CrawlerController(view, repository, factory, analyzer);
+        controller.start();
+    }
+}

src/main/java/com/music/command/AnalyzeCommand.java

@@ -0,0 +1,36 @@
+package com.music.command;
+
+import com.music.repository.SongRepository;
+import com.music.service.AnalyzerService;
+import com.music.view.ConsoleView;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class AnalyzeCommand implements Command {
+    private static final Logger logger = LoggerFactory.getLogger(AnalyzeCommand.class);
+    private final ConsoleView view;
+    private final AnalyzerService analyzerService;
+
+    public AnalyzeCommand(ConsoleView view, AnalyzerService analyzerService) {
+        this.view = view;
+        this.analyzerService = analyzerService;
+    }
+
+    @Override
+    public String getName() {
+        return "analyze";
+    }
+
+    @Override
+    public void execute(String[] args, SongRepository repository) {
+        var songs = repository.getAll();
+        if (songs.isEmpty()) {
+            view.printError("暂无数据，请先执行 crawl 命令爬取歌曲。");
+            return;
+        }
+        view.printInfo("正在分析数据...");
+        var stats = analyzerService.analyze(songs);
+        view.displayAnalysis(stats);
+        logger.info("分析报告已生成，共 {} 首歌曲", songs.size());
+    }
+}

src/main/java/com/music/command/Command.java

@@ -0,0 +1,8 @@
+package com.music.command;
+
+import com.music.repository.SongRepository;
+
+public interface Command {
+    String getName();
+    void execute(String[] args, SongRepository repository);
+}

src/main/java/com/music/command/CrawlCommand.java

@@ -0,0 +1,52 @@
+package com.music.command;
+
+import com.music.exception.CrawlerException;
+import com.music.repository.SongRepository;
+import com.music.strategy.CrawlStrategy;
+import com.music.strategy.StrategyFactory;
+import com.music.view.ConsoleView;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class CrawlCommand implements Command {
+    private static final Logger logger = LoggerFactory.getLogger(CrawlCommand.class);
+    private final ConsoleView view;
+    private final StrategyFactory factory;
+
+    public CrawlCommand(ConsoleView view, StrategyFactory factory) {
+        this.view = view;
+        this.factory = factory;
+    }
+
+    @Override
+    public String getName() {
+        return "crawl";
+    }
+
+    @Override
+    public void execute(String[] args, SongRepository repository) {
+        if (args.length < 2) {
+            view.printError("用法: crawl <platform>  (netease/qq/kugou)");
+            return;
+        }
+        String platform = args[1];
+        CrawlStrategy strategy = factory.getStrategy(platform);
+        if (strategy == null) {
+            view.printError("不支持的平台: " + platform + "，可选：netease, qq, kugou");
+            return;
+        }
+        view.printInfo("正在爬取 " + platform + " 热歌榜...");
+        try {
+            var songs = strategy.crawl(50);  // 爬取前50首
+            repository.addAll(songs);
+            view.printSuccess(String.format("成功爬取 %d 首歌曲", songs.size()));
+            logger.info("爬取完成，平台={}, 数量={}", platform, songs.size());
+        } catch (CrawlerException e) {
+            view.printError("爬取失败: " + e.getMessage());
+            logger.error("爬取异常", e);
+        } catch (Exception e) {
+            view.printError("未知错误: " + e.getMessage());
+            logger.error("未知异常", e);
+        }
+    }
+}

src/main/java/com/music/command/ExitCommand.java

@@ -0,0 +1,23 @@
+package com.music.command;
+
+import com.music.repository.SongRepository;
+import com.music.view.ConsoleView;
+
+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, SongRepository repository) {
+        view.printSuccess("再见！");
+        System.exit(0);
+    }
+}

src/main/java/com/music/command/HelpCommand.java

@@ -0,0 +1,22 @@
+package com.music.command;
+
+import com.music.repository.SongRepository;
+import com.music.view.ConsoleView;
+
+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, SongRepository repository) {
+        view.printHelp();
+    }
+}

src/main/java/com/music/command/HistoryCommand.java

@@ -0,0 +1,32 @@
+package com.music.command;
+
+import com.music.repository.SongRepository;
+import com.music.view.ConsoleView;
+import java.util.List;
+
+public class HistoryCommand implements Command {
+    private final ConsoleView view;
+    private final List<String> history;
+
+    public HistoryCommand(ConsoleView view, List<String> history) {
+        this.view = view;
+        this.history = history;
+    }
+
+    @Override
+    public String getName() {
+        return "history";
+    }
+
+    @Override
+    public void execute(String[] args, SongRepository repository) {
+        if (history.isEmpty()) {
+            view.println("没有命令历史。");
+            return;
+        }
+        view.println("最近输入的命令：");
+        for (int i = 0; i < history.size(); i++) {
+            view.println("  " + (i + 1) + ". " + history.get(i));
+        }
+    }
+}

src/main/java/com/music/command/ListCommand.java

@@ -0,0 +1,22 @@
+package com.music.command;
+
+import com.music.repository.SongRepository;
+import com.music.view.ConsoleView;
+
+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, SongRepository repository) {
+        view.displaySongs(repository.getAll());
+    }
+}

src/main/java/com/music/command/SaveCommand.java

@@ -0,0 +1,38 @@
+package com.music.command;
+
+import com.music.repository.SongRepository;
+import com.music.util.CsvUtil;
+import com.music.view.ConsoleView;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class SaveCommand implements Command {
+    private static final Logger logger = LoggerFactory.getLogger(SaveCommand.class);
+    private final ConsoleView view;
+
+    public SaveCommand(ConsoleView view) {
+        this.view = view;
+    }
+
+    @Override
+    public String getName() {
+        return "save";
+    }
+
+    @Override
+    public void execute(String[] args, SongRepository repository) {
+        if (args.length < 2) {
+            view.printError("用法: save <文件名>");
+            return;
+        }
+        String filename = args[1];
+        try {
+            CsvUtil.saveToCsv(repository.getAll(), filename);
+            view.printSuccess("已保存到 " + filename);
+            logger.info("数据已保存到文件: {}", filename);
+        } catch (Exception e) {
+            view.printError("保存失败: " + e.getMessage());
+            logger.error("保存CSV失败", e);
+        }
+    }
+}

src/main/java/com/music/controller/CrawlerController.java

@@ -0,0 +1,59 @@
+package com.music.controller;
+
+import com.music.command.*;
+import com.music.repository.SongRepository;
+import com.music.service.AnalyzerService;
+import com.music.strategy.StrategyFactory;
+import com.music.view.ConsoleView;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.*;
+
+public class CrawlerController {
+    private static final Logger logger = LoggerFactory.getLogger(CrawlerController.class);
+    private final Map<String, Command> commands = new HashMap<>();
+    private final ConsoleView view;
+    private final SongRepository repository;
+    private final List<String> history = new ArrayList<>();
+
+    public CrawlerController(ConsoleView view, SongRepository repository,
+                             StrategyFactory factory, AnalyzerService analyzer) {
+        this.view = view;
+        this.repository = repository;
+        registerCommand(new HelpCommand(view));
+        registerCommand(new ExitCommand(view));
+        registerCommand(new ListCommand(view));
+        registerCommand(new CrawlCommand(view, factory));
+        registerCommand(new SaveCommand(view));
+        registerCommand(new AnalyzeCommand(view, analyzer));
+        registerCommand(new HistoryCommand(view, history));
+    }
+
+    private void registerCommand(Command cmd) {
+        commands.put(cmd.getName(), cmd);
+    }
+
+    public void start() {
+        view.printSuccess("欢迎使用音乐爬虫系统 (CLI)");
+        view.println("输入 help 查看所有命令。\n");
+        while (true) {
+            String input = view.readLine().trim();
+            if (input.isEmpty()) continue;
+            history.add(input);
+            String[] parts = input.split("\\s+");
+            String cmdName = parts[0].toLowerCase();
+            Command cmd = commands.get(cmdName);
+            if (cmd == null) {
+                view.printError("未知命令: " + cmdName + "，输入 help 查看帮助");
+                continue;
+            }
+            try {
+                cmd.execute(parts, repository);
+            } catch (Exception e) {
+                view.printError("命令执行出错: " + e.getMessage());
+                logger.error("命令执行异常", e);
+            }
+        }
+    }
+}

src/main/java/com/music/exception/CrawlerException.java

@@ -0,0 +1,10 @@
+package com.music.exception;
+
+public class CrawlerException extends Exception {
+    public CrawlerException(String message) {
+        super(message);
+    }
+    public CrawlerException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}

src/main/java/com/music/exception/NetworkException.java

@@ -0,0 +1,10 @@
+package com.music.exception;
+
+public class NetworkException extends CrawlerException {
+    private final String url;
+    public NetworkException(String url, String message, Throwable cause) {
+        super(message, cause);
+        this.url = url;
+    }
+    public String getUrl() { return url; }
+}

src/main/java/com/music/exception/ParseException.java

@@ -0,0 +1,10 @@
+package com.music.exception;
+
+public class ParseException extends CrawlerException {
+    public ParseException(String message) {
+        super(message);
+    }
+    public ParseException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}

src/main/java/com/music/model/Song.java

@@ -0,0 +1,55 @@
+package com.music.model;
+
+public class Song {
+    private String platform;      // netease, qq, kugou
+    private String name;
+    private String artist;
+    private String album;
+    private Integer duration;     // 秒
+    private Integer popularity;
+    private String chartType;
+    private Integer rank;
+
+    public Song() {}
+
+    // 全参构造器（方便测试）
+    public Song(String platform, String name, String artist, String album, Integer duration, Integer rank) {
+        this.platform = platform;
+        this.name = name;
+        this.artist = artist;
+        this.album = album;
+        this.duration = duration;
+        this.rank = rank;
+        this.chartType = "热歌榜";
+    }
+
+    // Getters and Setters
+    public String getPlatform() { return platform; }
+    public void setPlatform(String platform) { this.platform = platform; }
+
+    public String getName() { return name; }
+    public void setName(String name) { this.name = name; }
+
+    public String getArtist() { return artist; }
+    public void setArtist(String artist) { this.artist = artist; }
+
+    public String getAlbum() { return album; }
+    public void setAlbum(String album) { this.album = album; }
+
+    public Integer getDuration() { return duration; }
+    public void setDuration(Integer duration) { this.duration = duration; }
+
+    public Integer getPopularity() { return popularity; }
+    public void setPopularity(Integer popularity) { this.popularity = popularity; }
+
+    public String getChartType() { return chartType; }
+    public void setChartType(String chartType) { this.chartType = chartType; }
+
+    public Integer getRank() { return rank; }
+    public void setRank(Integer rank) { this.rank = rank; }
+
+    @Override
+    public String toString() {
+        return String.format("%d. %s - %s [%s]", rank, name, artist, platform);
+    }
+}

src/main/java/com/music/repository/SongRepository.java

@@ -0,0 +1,36 @@
+package com.music.repository;
+
+import com.music.model.Song;
+import java.util.*;
+
+public class SongRepository {
+    private final List<Song> songs = new ArrayList<>();
+
+    public void add(Song song) {
+        if (song == null) {
+            throw new IllegalArgumentException("歌曲不能为 null");
+        }
+        if (song.getName() == null || song.getName().trim().isEmpty()) {
+            throw new IllegalArgumentException("歌曲名不能为空");
+        }
+        songs.add(song);
+    }
+
+    public void addAll(List<Song> songList) {
+        for (Song s : songList) {
+            add(s);
+        }
+    }
+
+    public List<Song> getAll() {
+        return Collections.unmodifiableList(songs);
+    }
+
+    public int size() {
+        return songs.size();
+    }
+
+    public void clear() {
+        songs.clear();
+    }
+}

src/main/java/com/music/service/AnalyzerService.java

@@ -0,0 +1,55 @@
+package com.music.service;
+
+import com.music.model.Song;
+import java.util.*;
+import java.util.stream.Collectors;
+
+public class AnalyzerService {
+
+    public Map<String, Object> analyze(List<Song> songs) {
+        Map<String, Object> result = new HashMap<>();
+
+        // 基础统计
+        long uniqueSongs = songs.stream()
+                .map(s -> s.getName() + "|" + s.getArtist())
+                .distinct()
+                .count();
+        long duplicateCount = songs.size() - uniqueSongs;
+        long artistCount = songs.stream().map(Song::getArtist).distinct().count();
+
+        result.put("totalSongs", songs.size());
+        result.put("uniqueSongs", uniqueSongs);
+        result.put("duplicateCount", duplicateCount);
+        result.put("artistCount", artistCount);
+
+        // 热门歌手排行
+        Map<String, Long> artistCountMap = songs.stream()
+                .collect(Collectors.groupingBy(Song::getArtist, Collectors.counting()));
+        List<Map.Entry<String, Long>> topArtists = new ArrayList<>(artistCountMap.entrySet());
+        topArtists.sort((a, b) -> b.getValue().compareTo(a.getValue()));
+        result.put("topArtists", topArtists);
+
+        // 时长分析
+        double avgDuration = songs.stream().mapToInt(Song::getDuration).average().orElse(0);
+        result.put("avgDuration", avgDuration);
+
+        Song shortest = songs.stream().min(Comparator.comparingInt(Song::getDuration)).orElse(null);
+        Song longest = songs.stream().max(Comparator.comparingInt(Song::getDuration)).orElse(null);
+        result.put("shortestSong", shortest == null ? "无" : String.format("%s (%d秒)", shortest.getName(), shortest.getDuration()));
+        result.put("longestSong", longest == null ? "无" : String.format("%s (%d秒)", longest.getName(), longest.getDuration()));
+
+        // 时长分布
+        Map<String, Long> durationDist = songs.stream()
+                .collect(Collectors.groupingBy(s -> {
+                    int min = s.getDuration() / 60;
+                    if (min < 3) return "3分钟以下";
+                    else if (min < 4) return "3-4分钟";
+                    else if (min < 5) return "4-5分钟";
+                    else if (min < 6) return "5-6分钟";
+                    else return "6分钟以上";
+                }, Collectors.counting()));
+        result.put("durationDistribution", durationDist);
+
+        return result;
+    }
+}

src/main/java/com/music/strategy/CrawlStrategy.java

@@ -0,0 +1,11 @@
+package com.music.strategy;
+
+import com.music.model.Song;
+import com.music.exception.NetworkException;
+import com.music.exception.ParseException;
+import java.util.List;
+
+public interface CrawlStrategy {
+    boolean supports(String platform);
+    List<Song> crawl(int limit) throws NetworkException, ParseException;
+}

src/main/java/com/music/strategy/KuGouStrategy.java

@@ -0,0 +1,120 @@
+package com.music.strategy;
+
+import com.music.exception.NetworkException;
+import com.music.exception.ParseException;
+import com.music.model.Song;
+import com.music.util.RetryUtils;
+import org.jsoup.Jsoup;
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class KuGouStrategy implements CrawlStrategy {
+    private static final Logger logger = LoggerFactory.getLogger(KuGouStrategy.class);
+
+    @Override
+    public boolean supports(String platform) {
+        return "kugou".equalsIgnoreCase(platform);
+    }
+
+    @Override
+    public List<Song> crawl(int limit) throws NetworkException, ParseException {
+        logger.info("开始爬取酷狗热歌榜，限制 {} 首", limit);
+        try {
+            // 使用酷狗网页版排行榜（相对稳定）
+            String url = "https://www.kugou.com/yy/rank/home/1-6666.html";
+            Document doc = RetryUtils.retry(() -> fetchDocument(url), 3, 1000);
+            
+            // 解析歌曲列表（根据酷狗网页结构调整选择器）
+            Elements songItems = doc.select("#rankWrap .pc_temp_songlist li");
+            if (songItems.isEmpty()) {
+                // 备用选择器
+                songItems = doc.select(".song-list li");
+            }
+            if (songItems.isEmpty()) {
+                logger.warn("未找到歌曲列表，可能网页结构已变化，使用模拟数据");
+                return getMockSongs(limit);
+            }
+            
+            List<Song> songs = new ArrayList<>();
+            int rank = 1;
+            for (Element item : songItems) {
+                if (rank > limit) break;
+                
+                // 歌曲名和歌手：通常在 a 标签内，格式如 "歌曲名 - 歌手"
+                Element nameLink = item.select(".pc_temp_songname a").first();
+                if (nameLink == null) nameLink = item.select("a").first();
+                if (nameLink == null) continue;
+                
+                String fullText = nameLink.text();
+                String name = fullText;
+                String artist = "未知歌手";
+                if (fullText.contains("-")) {
+                    String[] parts = fullText.split("-", 2);
+                    if (parts.length == 2) {
+                        name = parts[0].trim();
+                        artist = parts[1].trim();
+                    }
+                }
+                
+                // 时长（格式如 03:45）
+                String durationStr = item.select(".pc_temp_time").text();
+                int durationSeconds = parseDuration(durationStr);
+                
+                Song song = new Song();
+                song.setPlatform("kugou");
+                song.setRank(rank);
+                song.setChartType("热歌榜");
+                song.setName(name);
+                song.setArtist(artist);
+                song.setAlbum("酷狗热歌榜");
+                song.setDuration(durationSeconds);
+                songs.add(song);
+                
+                rank++;
+            }
+            logger.info("酷狗爬取完成，真实数据 {} 首", songs.size());
+            return songs.isEmpty() ? getMockSongs(limit) : songs;
+        } catch (Exception e) {
+            logger.error("酷狗爬取失败，使用模拟数据", e);
+            return getMockSongs(limit);
+        }
+    }
+    
+    private Document fetchDocument(String url) throws Exception {
+        return Jsoup.connect(url)
+                .userAgent("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36")
+                .header("Referer", "https://www.kugou.com/")
+                .timeout(10000)
+                .get();
+    }
+    
+    private int parseDuration(String durationStr) {
+        if (durationStr == null || durationStr.isEmpty()) return 0;
+        try {
+            String[] parts = durationStr.split(":");
+            if (parts.length == 2) {
+                return Integer.parseInt(parts[0]) * 60 + Integer.parseInt(parts[1]);
+            }
+        } catch (NumberFormatException e) {
+            logger.warn("时长解析失败: {}", durationStr);
+        }
+        return 0;
+    }
+    
+    private List<Song> getMockSongs(int limit) {
+        List<Song> songs = new ArrayList<>();
+        String[] names = {"海阔天空", "老男孩", "逆战", "夜曲", "青花瓷", "演员", "消愁", "童话"};
+        String[] artists = {"Beyond", "筷子兄弟", "张杰", "周杰伦", "周杰伦", "薛之谦", "毛不易", "光良"};
+        for (int i = 0; i < Math.min(limit, names.length); i++) {
+            Song song = new Song("kugou", names[i], artists[i], "酷狗精选", 220 + i * 10, i + 1);
+            songs.add(song);
+        }
+        return songs;
+    }
+}

src/main/java/com/music/strategy/NetEaseStrategy.java

@@ -0,0 +1,142 @@
+package com.music.strategy;   // 注意你的包名是 com.music
+
+import com.google.gson.*;
+import com.music.exception.NetworkException;
+import com.music.exception.ParseException;
+import com.music.model.Song;
+import com.music.util.RetryUtils;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+public class NetEaseStrategy implements CrawlStrategy {
+    private static final Logger logger = LoggerFactory.getLogger(NetEaseStrategy.class);
+
+    @Override
+    public boolean supports(String platform) {
+        return "netease".equalsIgnoreCase(platform);
+    }
+
+    @Override
+    public List<Song> crawl(int limit) throws NetworkException, ParseException {
+        logger.info("开始爬取网易云热歌榜，限制 {} 首", limit);
+        List<Song> songs = new ArrayList<>();
+        try {
+            // 使用更稳定的接口：歌单详情 API (歌单 ID: 3778678 是官方热歌榜)
+            String jsonData = RetryUtils.retry(() -> fetchJsonFromUrl(), 3, 1000);
+            
+            // 调试：打印前500字符，查看返回结构
+            if (jsonData.length() > 500) {
+                logger.debug("API返回预览: {}", jsonData.substring(0, 500));
+            } else {
+                logger.debug("API返回: {}", jsonData);
+            }
+
+            JsonObject root = JsonParser.parseString(jsonData).getAsJsonObject();
+            int code = root.get("code").getAsInt();
+            if (code != 200) {
+                throw new ParseException("网易云API返回错误码: " + code);
+            }
+
+            // 新版网易云API返回的数据在 "playlist" -> "tracks" 下
+            JsonObject playlist = root.getAsJsonObject("playlist");
+            if (playlist == null) {
+                // 兼容旧版结构：直接 result.tracks
+                JsonObject result = root.getAsJsonObject("result");
+                if (result == null) {
+                    throw new ParseException("JSON中既没有 playlist 也没有 result 字段，请检查API返回");
+                }
+                parseTracks(result.getAsJsonArray("tracks"), songs, limit);
+            } else {
+                JsonArray tracks = playlist.getAsJsonArray("tracks");
+                parseTracks(tracks, songs, limit);
+            }
+
+            logger.info("网易云爬取完成，共 {} 首", songs.size());
+            return songs;
+        } catch (Exception e) {
+            logger.error("网易云爬取失败", e);
+            if (e instanceof NetworkException) throw (NetworkException) e;
+            if (e instanceof ParseException) throw (ParseException) e;
+            throw new ParseException("解析网易云数据失败: " + e.getMessage(), e);
+        }
+    }
+
+    private void parseTracks(JsonArray tracks, List<Song> songs, int limit) {
+        if (tracks == null) {
+            logger.warn("tracks 数组为空");
+            return;
+        }
+        int count = 0;
+        for (int i = 0; i < tracks.size() && count < limit; i++) {
+            JsonObject track = tracks.get(i).getAsJsonObject();
+            Song song = new Song();
+            song.setPlatform("netease");
+            song.setRank(i + 1);
+            song.setChartType("热歌榜");
+            song.setName(track.get("name").getAsString());
+
+            // 歌手
+            if (track.has("artists")) {
+                JsonArray artists = track.getAsJsonArray("artists");
+                StringBuilder sb = new StringBuilder();
+                for (int j = 0; j < artists.size(); j++) {
+                    sb.append(artists.get(j).getAsJsonObject().get("name").getAsString());
+                    if (j < artists.size() - 1) sb.append("/");
+                }
+                song.setArtist(sb.toString());
+            } else {
+                song.setArtist("未知歌手");
+            }
+
+            // 专辑
+            if (track.has("album")) {
+                JsonObject album = track.getAsJsonObject("album");
+                song.setAlbum(album.has("name") ? album.get("name").getAsString() : "未知专辑");
+            } else {
+                song.setAlbum("未知专辑");
+            }
+
+            // 时长（毫秒转秒）
+            song.setDuration(track.get("duration").getAsInt() / 1000);
+            songs.add(song);
+            count++;
+            try { Thread.sleep(100); } catch (InterruptedException ignored) {}
+        }
+    }
+
+    private String fetchJsonFromUrl() throws Exception {
+        OkHttpClient client = new OkHttpClient.Builder()
+                .connectTimeout(30, TimeUnit.SECONDS)
+                .readTimeout(30, TimeUnit.SECONDS)
+                .addInterceptor(chain -> {
+                    Request original = chain.request();
+                    Request request = original.newBuilder()
+                            .header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36")
+                            .header("Cookie", "os=pc; appver=2.0.2;")
+                            .header("Referer", "https://music.163.com/")
+                            .method(original.method(), original.body())
+                            .build();
+                    return chain.proceed(request);
+                })
+                .build();
+        // 使用官方热歌榜歌单 ID: 3778678 的详情接口
+        String url = "https://music.163.com/api/playlist/detail?id=3778678";
+        Request request = new Request.Builder()
+                .url(url)
+                .get()
+                .build();
+        try (Response response = client.newCall(request).execute()) {
+            if (!response.isSuccessful()) {
+                throw new NetworkException(url, "HTTP " + response.code(), null);
+            }
+            return response.body().string();
+        }
+    }
+}

src/main/java/com/music/strategy/QQStrategy.java

@@ -0,0 +1,104 @@
+package com.music.strategy;
+
+import com.music.exception.NetworkException;
+import com.music.exception.ParseException;
+import com.music.model.Song;
+import com.music.util.RetryUtils;
+import org.jsoup.Jsoup;
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class QQStrategy implements CrawlStrategy {
+    private static final Logger logger = LoggerFactory.getLogger(QQStrategy.class);
+
+    @Override
+    public boolean supports(String platform) {
+        return "qq".equalsIgnoreCase(platform);
+    }
+
+    @Override
+    public List<Song> crawl(int limit) throws NetworkException, ParseException {
+        logger.info("开始爬取 QQ 音乐热歌榜，限制 {} 首", limit);
+        List<Song> songs = new ArrayList<>();
+        try {
+            // 使用重试工具包装网络请求
+            String url = "https://y.qq.com/n/ryqq/toplist/4";  // QQ音乐热歌榜
+            Document doc = RetryUtils.retry(() -> fetchDocument(url), 3, 1000);
+            
+            // 解析歌曲列表：选择器基于 QQ 音乐网页结构
+            Elements songItems = doc.select(".songlist__list li");
+            if (songItems.isEmpty()) {
+                logger.warn("未找到歌曲列表，网页结构可能已变化");
+                return songs; // 返回空列表，不抛异常
+            }
+            
+            int rank = 1;
+            for (Element item : songItems) {
+                if (rank > limit) break;
+                
+                // 歌曲名
+                String name = item.select(".songlist__songname").text();
+                if (name.isEmpty()) {
+                    // 备用选择器
+                    name = item.select(".songlist__songname_txt").text();
+                }
+                // 歌手
+                String artist = item.select(".songlist__artist").text();
+                if (artist.isEmpty()) {
+                    artist = item.select(".songlist__artist_name").text();
+                }
+                // 时长（格式如 03:45）
+                String durationStr = item.select(".songlist__time").text();
+                int durationSeconds = parseDuration(durationStr);
+                
+                Song song = new Song();
+                song.setPlatform("qq");
+                song.setRank(rank);
+                song.setChartType("热歌榜");
+                song.setName(name.isEmpty() ? "未知歌曲" : name);
+                song.setArtist(artist.isEmpty() ? "未知歌手" : artist);
+                song.setAlbum("QQ音乐专辑");   // 网页上未直接展示专辑，可留空或后续补充
+                song.setDuration(durationSeconds);
+                songs.add(song);
+                
+                logger.debug("QQ音乐: 排名{} {} - {}", rank, name, artist);
+                rank++;
+            }
+            logger.info("QQ音乐爬取完成，共 {} 首", songs.size());
+            return songs;
+        } catch (Exception e) {
+            logger.error("QQ音乐爬取失败", e);
+            if (e instanceof NetworkException) throw (NetworkException) e;
+            if (e instanceof ParseException) throw (ParseException) e;
+            throw new ParseException("解析QQ音乐数据失败: " + e.getMessage(), e);
+        }
+    }
+    
+    private Document fetchDocument(String url) throws Exception {
+        return Jsoup.connect(url)
+                .userAgent("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36")
+                .header("Referer", "https://y.qq.com/")
+                .timeout(10000)
+                .get();
+    }
+    
+    private int parseDuration(String durationStr) {
+        if (durationStr == null || durationStr.isEmpty()) return 0;
+        // 格式: "03:45" -> 225秒
+        try {
+            String[] parts = durationStr.split(":");
+            if (parts.length == 2) {
+                return Integer.parseInt(parts[0]) * 60 + Integer.parseInt(parts[1]);
+            }
+        } catch (NumberFormatException e) {
+            logger.warn("时长解析失败: {}", durationStr);
+        }
+        return 0;
+    }
+}

src/main/java/com/music/strategy/StrategyFactory.java

@@ -0,0 +1,23 @@
+package com.music.strategy;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class StrategyFactory {
+    private final List<CrawlStrategy> strategies = new ArrayList<>();
+
+    public StrategyFactory() {
+        strategies.add(new NetEaseStrategy());
+        strategies.add(new QQStrategy());
+        strategies.add(new KuGouStrategy());
+    }
+
+    public CrawlStrategy getStrategy(String platform) {
+        for (CrawlStrategy s : strategies) {
+            if (s.supports(platform)) {
+                return s;
+            }
+        }
+        return null;
+    }
+}

src/main/java/com/music/util/CsvUtil.java

@@ -0,0 +1,28 @@
+package com.music.util;
+
+import com.music.model.Song;
+import java.io.FileWriter;
+import java.io.PrintWriter;
+import java.util.List;
+
+public class CsvUtil {
+    public static void saveToCsv(List<Song> songs, String filename) throws Exception {
+        try (PrintWriter out = new PrintWriter(new FileWriter(filename))) {
+            out.println("排名,歌曲名称,歌手,专辑,时长(秒),平台");
+            for (Song s : songs) {
+                out.printf("%d,\"%s\",\"%s\",\"%s\",%d,%s\n",
+                        s.getRank(),
+                        escape(s.getName()),
+                        escape(s.getArtist()),
+                        escape(s.getAlbum()),
+                        s.getDuration(),
+                        s.getPlatform());
+            }
+        }
+    }
+
+    private static String escape(String str) {
+        if (str == null) return "";
+        return str.replace("\"", "\"\"");
+    }
+}

src/main/java/com/music/util/RetryUtils.java

@@ -0,0 +1,26 @@
+package com.music.util;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class RetryUtils {
+    private static final Logger logger = LoggerFactory.getLogger(RetryUtils.class);
+
+    @FunctionalInterface
+    public interface ThrowingAction<T> {
+        T call() throws Exception;
+    }
+
+    public static <T> T retry(ThrowingAction<T> action, int maxRetries, long waitMillis) throws Exception {
+        for (int i = 0; i < maxRetries; i++) {
+            try {
+                return action.call();
+            } catch (Exception e) {
+                if (i == maxRetries - 1) throw e;
+                logger.warn("重试 {}/{}，等待 {}ms，异常: {}", i + 1, maxRetries, waitMillis, e.getMessage());
+                Thread.sleep(waitMillis);
+            }
+        }
+        throw new IllegalStateException("Unreachable");
+    }
+}

src/main/java/com/music/view/ConsoleView.java

@@ -0,0 +1,115 @@
+package com.music.view;
+
+import com.music.model.Song;
+import java.util.List;
+import java.util.Map;
+import java.util.Scanner;
+
+public class ConsoleView {
+    private static final String ANSI_GREEN = "\u001B[32m";
+    private static final String ANSI_RED = "\u001B[31m";
+    private static final String ANSI_CYAN = "\u001B[36m";
+    private static final String ANSI_RESET = "\u001B[0m";
+
+    private final Scanner scanner = new Scanner(System.in);
+
+    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_CYAN + msg + ANSI_RESET);
+    }
+
+    public void printHelp() {
+        println("\n可用命令：");
+        println("  crawl <platform>   - 爬取歌曲 (platform: netease, qq, kugou)");
+        println("  list               - 显示已爬取的所有歌曲");
+        println("  save <filename>    - 保存到 CSV 文件 (例如 save data.csv)");
+        println("  analyze            - 显示数据分析报告");
+        println("  history            - 显示本次会话输入的命令历史");
+        println("  help               - 显示本帮助");
+        println("  exit               - 退出程序\n");
+    }
+
+    public void displaySongs(List<Song> songs) {
+        if (songs.isEmpty()) {
+            println("暂无歌曲数据，请先执行 crawl 命令。");
+            return;
+        }
+        System.out.printf("%-4s %-30s %-20s %-10s %-10s%n",
+                "排名", "歌曲名", "歌手", "时长(秒)", "平台");
+        for (Song s : songs) {
+            System.out.printf("%-4d %-30s %-20s %-10d %-10s%n",
+                    s.getRank(),
+                    truncate(s.getName(), 28),
+                    truncate(s.getArtist(), 18),
+                    s.getDuration(),
+                    s.getPlatform());
+        }
+    }
+
+    public void displayAnalysis(Map<String, Object> stats) {
+        println("\n" + "=".repeat(60));
+        println("📊 音乐数据分析报告");
+        println("=".repeat(60));
+
+        // 基础统计
+        println("\n📋 【基础统计】");
+        println("-".repeat(40));
+        println("  总歌曲数: " + stats.get("totalSongs") + " 首");
+        println("  去重后: " + stats.get("uniqueSongs") + " 首");
+        println("  重复歌曲: " + stats.get("duplicateCount") + " 首");
+        println("  涉及歌手: " + stats.get("artistCount") + " 位");
+
+        // 热门歌手排行
+        println("\n🎤 【热门歌手上榜次数排行】");
+        println("-".repeat(40));
+        @SuppressWarnings("unchecked")
+        List<Map.Entry<String, Long>> topArtists = (List<Map.Entry<String, Long>>) stats.get("topArtists");
+        int rank = 1;
+        for (Map.Entry<String, Long> entry : topArtists) {
+            System.out.printf("  %d. %s: 上榜 %d 次\n", rank++, entry.getKey(), entry.getValue());
+            if (rank > 15) break;
+        }
+
+        // 时长分析
+        println("\n⏱️ 【歌曲时长分析】");
+        println("-".repeat(40));
+        System.out.printf("  平均时长: %.1f 秒 (%.1f 分钟)\n", stats.get("avgDuration"), (Double)stats.get("avgDuration") / 60);
+        System.out.println("  最短歌曲: " + stats.get("shortestSong"));
+        System.out.println("  最长歌曲: " + stats.get("longestSong"));
+
+        // 时长分布
+        println("\n📈 【歌曲时长分布】");
+        println("-".repeat(40));
+        @SuppressWarnings("unchecked")
+        Map<String, Long> durationDist = (Map<String, Long>) stats.get("durationDistribution");
+        durationDist.forEach((range, count) -> {
+            double percentage = count * 100.0 / (Integer)stats.get("totalSongs");
+            System.out.printf("  %s: %d 首 (%.1f%%) ", range, count, percentage);
+            int bar = (int)(percentage / 2);
+            for (int i = 0; i < bar; i++) System.out.print("█");
+            System.out.println();
+        });
+        println("");
+    }
+
+    private String truncate(String str, int maxLen) {
+        if (str == null) return "";
+        if (str.length() <= maxLen) return str;
+        return str.substring(0, maxLen - 3) + "...";
+    }
+
+    public void println(String msg) {
+        System.out.println(msg);
+    }
+
+    public String readLine() {
+        return scanner.nextLine();
+    }
+}

src/main/resources/logback.xml

@@ -0,0 +1,23 @@
+<configuration>
+    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <charset>UTF-8</charset>
+            <pattern>%highlight(%level) %d{HH:mm:ss} %logger{20} - %msg%n</pattern>
+        </encoder>
+    </appender>
+    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <file>logs/crawler.log</file>
+        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
+            <fileNamePattern>logs/crawler.%d{yyyy-MM-dd}.log</fileNamePattern>
+            <maxHistory>7</maxHistory>
+        </rollingPolicy>
+        <encoder>
+            <charset>UTF-8</charset>
+            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+        </encoder>
+    </appender>
+    <root level="INFO">
+        <appender-ref ref="CONSOLE"/>
+        <appender-ref ref="FILE"/>
+    </root>
+</configuration>

target/classes/logback.xml

@@ -0,0 +1,23 @@
+<configuration>
+    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <charset>UTF-8</charset>
+            <pattern>%highlight(%level) %d{HH:mm:ss} %logger{20} - %msg%n</pattern>
+        </encoder>
+    </appender>
+    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <file>logs/crawler.log</file>
+        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
+            <fileNamePattern>logs/crawler.%d{yyyy-MM-dd}.log</fileNamePattern>
+            <maxHistory>7</maxHistory>
+        </rollingPolicy>
+        <encoder>
+            <charset>UTF-8</charset>
+            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+        </encoder>
+    </appender>
+    <root level="INFO">
+        <appender-ref ref="CONSOLE"/>
+        <appender-ref ref="FILE"/>
+    </root>
+</configuration>