httpclient+jsoup实现小说线上采集阅读

前言

　　用过老版本UC看小说的同学都知道，当年版权问题比较松懈，我们可以再UC搜索不同来源的小说，并且阅读，那么它是怎么做的呢？下面让我们自己实现一个小说线上采集阅读。（说明：仅用于技术学习、研究）

　　看小说时，最烦的就是有各种广告，这些广告有些是站长放上去的盈利手段，有些是被人恶意注入。在我的上一篇博客中实现了小说采集并保存到本地TXT文件 HttpClients+Jsoup抓取笔趣阁小说，并保存到本地TXT文件，这样我们就可以导入手机用手机阅读软件看小说；那么我们这里实现一个可以在线看小说。

话不多说先看效果

　　首页：

　　页面很纯净，目前有三种来源

　　搜索结果页：

　　三个不同的来源，分页用的是layui的laypage，逻辑分页。（笔趣阁的搜索结果界面没有书本的图片）

　　

　　翻页效果：

　　纵横网连简介等都帮我们分词，搞得数据量太大，速度太慢：books.size() < 888

　　书本详情页：

　　小说阅读页：

　　上、下一章：

代码与分析

　　项目是springboot项目，原理非常简单，就是用httpclient构造一个请求头去请求对应的来源链接，用jsoup去解析响应回来的response，

　　通过jsoup的选择器去找到我们想要的数据，存入实体，放到ModelAndView里面，前端页面用thymeleaf去取值、遍历数据。

　　但是有一些书是要会员才能看，这种情况下我们需要做模拟登陆才能继续采集，这里只是一个简单的采集，就不做模拟登陆了。

　　采集过程中碰到的问题：

　　1、起点中文网采集书本集合时，想要的数据不在页面源码里面

 　　起点中文网很机智，他在html代码了没有直接展示page分页信息的链接

　　可以看到，httpClient请求回来的response里分页信息标签里面是空的，但用浏览器去请求里面有信息

　　这是因为httpClient去模拟我们的浏览器访问某个链接，直接响应回这个链接对应的内容，并不会去帮我们触发其他的ajax，而浏览器回去解析响应回来的html，当碰到img、script、link等标签它会帮我们去ajax请求对应的资源。
　　由此推测，page相关的信息，起点中文网是在js代码里面去获取并追加，最后通过network找到它的一些蛛丝马迹

　　既然他没有写在html里，那我们就自己去创建连接，可以看到html上有当前页跟最大页数

 

完美

 　　2、笔趣阁查看书本详情，图片防盗链

 　　笔趣阁有一个图片防盗，我们在自己的html引入图片路径时，但当我们把链接用浏览器访问时是可以的

　　

　　对比一下两边的请求头

　　首先我们要知道什么事图片防盗链，猛戳这里  -->：图片防盗链原理及应对方法 ；我们直接用大佬的反防盗链方法，并且针对我们的项目改造一下：

<div id="bookImg"></div>

    /**
     * 反防盗链
     */
    function showImg(parentObj, url) {
        //来一个随机数
        var frameid = 'frameimg' + Math.random();
        //放在（父页面）window里面   iframe的script标签里面绑定了window.onload，作用：设置iframe的高度、宽度 <script>window.onload = function() {  parent.document.getElementById(\'' + frameid + '\').height = document.getElementById(\'img\').height+\'px\'; }<' + '/script>
        window.img = '<img src=\'' + url + '?' + Math.random() + '\'/>';
        //iframe调用parent.img
        $(parentObj).append('<iframe id="' + frameid + '" src="javascript:parent.img;" frameBorder="0" scrolling="no"></iframe>');
    }

    showImg($("#bookImg"), book.img);

　　效果最终：

　　3、采集书本详情时，起点网的目录并没有在html里 

 　　起点网的目录并没有在html里，也不是在另一个链接里

　　通过浏览器页面Elements的Break on打断点

 

　　

　　查看调用栈发现，它在js ajax请求数据，进行tab切换，就连总共有多少章，它都是页面加载出来之后ajax请求回来的

　　看一下他的请求头跟参数

　　只要我们弄懂_csrfToken参数就可以构造一个get请求  https://book.qidian.com/ajax/book/category?_csrfToken=LosgUIe29G7LV04gdutbSqzKRb9XxoPyqtWBQ3hU&bookId=1209977

　　通过浏览器查看可知，第一章对应的链接：https://read.qidian.com/chapter/2R9G_ziBVg41/MyEcwtk5i8Iex0RJOkJclQ2

　　这个就是我们想要的

　　https://read.qidian.com/chapter/  + cU章节链接
　　cN章节名称 

　　 _csrfToken是cookie，而且多次刷新都不变，大胆猜测：起点为我们生成cookie并且携带请求ajax，携带与起点给我们的cookie不一致的时候返回失败，

　　我们每次调用gather，都是一次新的httpclient对象，每次既然如此，那我们就先获取cookie，在用同一个httpclient去请求数据即可 （详情代码已经贴出来，在BookHandler_qidian.book_details_qidian里面）

 

　　 最终我们获得了返回值，是一个json

 

 

 

　　同样的，大部分逻辑都写在注释里面，相信大家都看得懂：

　　maven引包：

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpcore</artifactId>
            <version>4.4.9</version>
        </dependency>
        <dependency>
            <groupId>org.jsoup</groupId>
            <artifactId>jsoup</artifactId>
            <version>1.11.3</version>
        </dependency>
        <dependency>
            <groupId>net.sf.json-lib</groupId>
            <artifactId>json-lib</artifactId>
            <version>2.4</version>
            <classifier>jdk15</classifier>
        </dependency>

　　书实体类：

/**
 * 书对象
 */
@Data
public class Book {

    /**
     * 链接
     */
    private String bookUrl;

    /**
     * 书名
     */
    private String bookName;

    /**
     * 作者
     */
    private String author;

    /**
     * 简介
     */
    private String synopsis;

    /**
     * 图片
     */
    private String img;

    /**
     * 章节目录 chapterName、url
     */
    private List<Map<String,String>> chapters;

    /**
     * 状态
     */
    private String status;

    /**
     * 类型
     */
    private String type;

    /**
     * 更新时间
     */
    private String updateDate;

    /**
     * 第一章
     */
    private String firstChapter;

    /**
     * 第一章链接
     */
    private String firstChapterUrl;

    /**
     * 上一章节
     */
    private String prevChapter;

    /**
     * 上一章节链接
     */
    private String prevChapterUrl;

    /**
     * 当前章节名称
     */
    private String nowChapter;

    /**
     * 当前章节内容
     */
    private String nowChapterValue;

    /**
     * 当前章节链接
     */
    private String nowChapterUrl;

    /**
     * 下一章节
     */
    private String nextChapter;

    /**
     * 下一章节链接
     */
    private String nextChapterUrl;

    /**
     * 最新章节
     */
    private String latestChapter;

    /**
     * 最新章节链接
     */
    private String latestChapterUrl;

    /**
     * 大小
     */
    private String magnitude;

    /**
     * 来源
     */
    private Map<String,String> source;
    private String sourceKey;
}

　　小工具类：

/**
 * 小工具类
 */
public class BookUtil {

    /**
     * 自动注入参数
     * 例如：
     *
     * @param src    http://search.zongheng.com/s?keyword=#1&pageNo=#2&sort=
     * @param params "斗破苍穹","1"
     * @return http://search.zongheng.com/s?keyword=斗破苍穹&pageNo=1&sort=
     */
    public static String insertParams(String src, String... params) {
        int i = 1;
        for (String param : params) {
            src = src.replaceAll("#" + i, param);
            i++;
        }
        return src;
    }

    /**
     * 采集当前url完整response实体.toString()
     *
     * @param url url
     * @return response实体.toString()
     */
    public static String gather(String url, String refererUrl) {
        String result = null;
        try {
            //创建httpclient对象 (这里设置成全局变量，相对于同一个请求session、cookie会跟着携带过去)
            CloseableHttpClient httpClient = HttpClients.createDefault();
            //创建get方式请求对象
            HttpGet httpGet = new HttpGet(url);
            httpGet.addHeader("Content-type", "application/json");
            //包装一下
            httpGet.addHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36");
            httpGet.addHeader("Referer", refererUrl);
            httpGet.addHeader("Connection", "keep-alive");

            //通过请求对象获取响应对象
            CloseableHttpResponse response = httpClient.execute(httpGet);
            //获取结果实体
            if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                result = EntityUtils.toString(response.getEntity(), "GBK");
            }

            //释放链接
            response.close();
        }
        //这里还可以捕获超时异常，重新连接抓取
        catch (Exception e) {
            result = null;
            System.err.println("采集操作出错");
            e.printStackTrace();
        }
        return result;
    }
}

　　Controller层：

/**
 * Book Controller层
 */
@RestController
@RequestMapping("book")
public class BookContrller {

    /**
     * 来源集合
     */
    private static Map<String, Map<String, String>> source = new HashMap<>();

    static {
        //笔趣阁
        source.put("biquge", BookHandler_biquge.biquge);

        //纵横中文网
        source.put("zongheng", BookHandler_zongheng.zongheng);

        //起点中文网
        source.put("qidian", BookHandler_qidian.qidian);
    }

    /**
     * 访问首页
     */
    @GetMapping("/index")
    public ModelAndView index() {
        return new ModelAndView("book_index.html");
    }

    /**
     * 搜索书名
     */
    @GetMapping("/search")
    public ModelAndView search(Book book) {
        //结果集
        ArrayList<Book> books = new ArrayList<>();
        //关键字
        String keyWord = book.getBookName();
        //来源
        String sourceKey = book.getSourceKey();

        //获取来源详情
        Map<String, String> src = source.get(sourceKey);

        // 编码
        try {
            keyWord = URLEncoder.encode(keyWord, src.get("UrlEncode"));
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        //searchUrl
        src.put("searchUrl", BookUtil.insertParams(src.get("searchUrl"), keyWord, "1"));

        //调用不同的方法
        switch (sourceKey) {
            case "biquge":
                BookHandler_biquge.book_search_biquge(books, src, keyWord);
                break;
            case "zongheng":
                BookHandler_zongheng.book_search_zongheng(books, src, keyWord);
                break;
            case "qidian":
                BookHandler_qidian.book_search_qidian(books, src, keyWord);
                break;
            default:
                //默认所有都查
                BookHandler_biquge.book_search_biquge(books, src, keyWord);
                BookHandler_zongheng.book_search_zongheng(books, src, keyWord);
                BookHandler_qidian.book_search_qidian(books, src, keyWord);
                break;
        }

        System.out.println(books.size());
        ModelAndView modelAndView = new ModelAndView("book_list.html", "books", books);
        try {
            modelAndView.addObject("keyWord", URLDecoder.decode(keyWord, src.get("UrlEncode")));
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        modelAndView.addObject("sourceKey", sourceKey);
        return modelAndView;
    }

    /**
     * 访问书本详情
     */
    @GetMapping("/details")
    public ModelAndView details(String sourceKey,String bookUrl,String searchUrl) {
        Map<String, String> src = source.get(sourceKey);
        src.put("searchUrl",searchUrl);
        Book book = new Book();
        //调用不同的方法
        switch (sourceKey) {
            case "biquge":
                book = BookHandler_biquge.book_details_biquge(src, bookUrl);
                break;
            case "zongheng":
                book = BookHandler_zongheng.book_details_zongheng(src, bookUrl);
                break;
            case "qidian":
                book = BookHandler_qidian.book_details_qidian(src, bookUrl);
                break;
            default:
                break;
        }
        return new ModelAndView("book_details.html", "book", book);
    }

    /**
     * 访问书本章节
     */
    @GetMapping("/read")
    public ModelAndView read(String sourceKey,String chapterUrl,String refererUrl) {
        Map<String, String> src = source.get(sourceKey);
        Book book = new Book();
        //调用不同的方法
        switch (sourceKey) {
            case "biquge":
                book = BookHandler_biquge.book_read_biquge(src, chapterUrl,refererUrl);
                break;
            case "zongheng":
                book = BookHandler_zongheng.book_read_zongheng(src, chapterUrl,refererUrl);
                break;
            case "qidian":
                book = BookHandler_qidian.book_read_qidian(src, chapterUrl,refererUrl);
                break;
            default:
                break;
        }
        return new ModelAndView("book_read.html", "book", book);
    }
}

　　三个不同来源的Handler处理器，每个来源都有不同的采集规则：

　BookHandler_biquge

/**
 * 笔趣阁采集规则
 */
public class BookHandler_biquge {

    /**
     * 来源信息
     */
    public static HashMap<String, String> biquge = new HashMap<>();

    static {
        //笔趣阁
        biquge.put("name", "笔趣阁");
        biquge.put("key", "biquge");
        biquge.put("baseUrl", "http://www.biquge.com.tw");
        biquge.put("baseSearchUrl", "http://www.biquge.com.tw/modules/article/soshu.php");
        biquge.put("UrlEncode", "GB2312");
        biquge.put("searchUrl", "http://www.biquge.com.tw/modules/article/soshu.php?searchkey=+#1&page=#2");
    }

    /**
     * 获取search list   笔趣阁采集规则
     *
     * @param books   结果集合
     * @param src     源目标
     * @param keyWord 关键字
     */
    public static void book_search_biquge(ArrayList<Book> books, Map<String, String> src, String keyWord) {
        //采集术
        String html = BookUtil.gather(src.get("searchUrl"), src.get("baseUrl"));
        try {
            //解析html格式的字符串成一个Document
            Document doc = Jsoup.parse(html);

            //当前页集合
            Elements resultList = doc.select("table.grid  tr#nr");
            for (Element result : resultList) {
                Book book = new Book();
                //书本链接
                book.setBookUrl(result.child(0).select("a").attr("href"));
                //书名
                book.setBookName(result.child(0).select("a").text());
                //作者
                book.setAuthor(result.child(2).text());
                //更新时间
                book.setUpdateDate(result.child(4).text());
                //最新章节
                book.setLatestChapter(result.child(1).select("a").text());
                book.setLatestChapterUrl(result.child(1).select("a").attr("href"));
                //状态
                book.setStatus(result.child(5).text());
                //大小
                book.setMagnitude(result.child(3).text());
                //来源
                book.setSource(src);
                books.add(book);
            }

            //下一页
            Elements searchNext = doc.select("div.pages > a.ngroup");
            String href = searchNext.attr("href");
            if (!StringUtils.isEmpty(href)) {
                src.put("baseUrl", src.get("searchUrl"));
                src.put("searchUrl", href.contains("http") ? href : (src.get("baseSearchUrl") + href));
                book_search_biquge(books, src, keyWord);
            }

        } catch (Exception e) {
            System.err.println("采集数据操作出错");
            e.printStackTrace();
        }
    }

    /**
     *  获取书本详情  笔趣阁采集规则
     * @param src 源目标
     * @param bookUrl 书本链接
     * @return Book对象
     */
    public static Book book_details_biquge(Map<String, String> src, String bookUrl) {
        Book book = new Book();
        //采集术
        String html = BookUtil.gather(bookUrl, src.get("searchUrl"));
        try {
            //解析html格式的字符串成一个Document
            Document doc = Jsoup.parse(html);
            //书本链接
            book.setBookUrl(doc.select("meta[property=og:url]").attr("content"));
            //图片
            book.setImg(doc.select("meta[property=og:image]").attr("content"));
            //书名
            book.setBookName(doc.select("div#info > h1").text());
            //作者
            book.setAuthor(doc.select("meta[property=og:novel:author]").attr("content"));
            //更新时间
            book.setUpdateDate(doc.select("meta[property=og:novel:update_time]").attr("content"));
            //最新章节
            book.setLatestChapter(doc.select("meta[property=og:novel:latest_chapter_name]").attr("content"));
            book.setLatestChapterUrl(doc.select("meta[property=og:novel:latest_chapter_url]").attr("content"));
            //类型
            book.setType(doc.select("meta[property=og:novel:category]").attr("content"));
            //简介
            book.setSynopsis(doc.select("meta[property=og:description]").attr("content"));
            //状态
            book.setStatus(doc.select("meta[property=og:novel:status]").attr("content"));

            //章节目录
            ArrayList<Map<String, String>> chapters = new ArrayList<>();
            for (Element result : doc.select("div#list dd")) {
                HashMap<String, String> map = new HashMap<>();
                map.put("chapterName", result.select("a").text());
                map.put("url", result.select("a").attr("href"));
                chapters.add(map);
            }
            book.setChapters(chapters);

            //来源
            book.setSource(src);

        } catch (Exception e) {
            System.err.println("采集数据操作出错");
            e.printStackTrace();
        }
        return book;
    }

    /**
     * 得到当前章节名以及完整内容跟上、下一章的链接地址 笔趣阁采集规则
     * @param src 源目标
     * @param chapterUrl 当前章节链接
     * @param refererUrl 来源链接
     * @return Book对象
     */
    public static Book book_read_biquge(Map<String, String> src,String chapterUrl,String refererUrl) {
        Book book = new Book();

        //当前章节链接
        book.setNowChapterUrl(chapterUrl.contains("http") ? chapterUrl : (src.get("baseUrl") + chapterUrl));

        //采集术
        String html = BookUtil.gather(book.getNowChapterUrl(), refererUrl);
        try {
            //解析html格式的字符串成一个Document
            Document doc = Jsoup.parse(html);

            //当前章节名称
            book.setNowChapter(doc.select("div.box_con > div.bookname > h1").text());

            //删除图片广告
            doc.select("div.box_con > div#content img").remove();
            //当前章节内容
            book.setNowChapterValue(doc.select("div.box_con > div#content").outerHtml());

            //上、下一章
            book.setPrevChapter(doc.select("div.bottem2 a:matches((?i)下一章)").text());
            book.setPrevChapterUrl(doc.select("div.bottem2 a:matches((?i)下一章)").attr("href"));
            book.setNextChapter(doc.select("div.bottem2 a:matches((?i)上一章)").text());
            book.setNextChapterUrl(doc.select("div.bottem2 a:matches((?i)上一章)").attr("href"));

            //来源
            book.setSource(src);

        } catch (Exception e) {
            System.err.println("采集数据操作出错");
            e.printStackTrace();
        }
        return book;
    }
}

BookHandler_zongheng

/**
 * 纵横中文网采集规则
 */
public class BookHandler_zongheng {

    /**
     * 来源信息
     */
    public static HashMap<String, String> zongheng = new HashMap<>();

    static {
        //纵横中文网
        zongheng.put("name", "纵横中文网");
        zongheng.put("key", "zongheng");
        zongheng.put("baseUrl", "http://www.zongheng.com");
        zongheng.put("baseSearchUrl", "http://search.zongheng.com/s");
        zongheng.put("UrlEncode", "UTF-8");
        zongheng.put("searchUrl", "http://search.zongheng.com/s?keyword=#1&pageNo=#2&sort=");
    }

    /**
     * 获取search list   纵横中文网采集规则
     *
     * @param books   结果集合
     * @param src     源目标
     * @param keyWord 关键字
     */
    public static void book_search_zongheng(ArrayList<Book> books, Map<String, String> src, String keyWord) {
        //采集术
        String html = BookUtil.gather(src.get("searchUrl"), src.get("baseUrl"));
        try {
            //解析html格式的字符串成一个Document
            Document doc = Jsoup.parse(html);

            //当前页集合
            Elements resultList = doc.select("div.search-tab > div.search-result-list");
            for (Element result : resultList) {
                Book book = new Book();
                //书本链接
                book.setBookUrl(result.select("div.imgbox a").attr("href"));
                //图片
                book.setImg(result.select("div.imgbox img").attr("src"));
                //书名
                book.setBookName(result.select("h2.tit").text());
                //作者
                book.setAuthor(result.select("div.bookinfo > a").first().text());
                //类型
                book.setType(result.select("div.bookinfo > a").last().text());
                //简介
                book.setSynopsis(result.select("p").text());
                //状态
                book.setStatus(result.select("div.bookinfo > span").first().text());
                //大小
                book.setMagnitude(result.select("div.bookinfo > span").last().text());
                //来源
                book.setSource(src);
                books.add(book);
            }

            //下一页
            Elements searchNext = doc.select("div.search_d_pagesize > a.search_d_next");
            String href = searchNext.attr("href");
            //最多只要888本，不然太慢了
            if (books.size() < 888 && !StringUtils.isEmpty(href)) {
                src.put("baseUrl", src.get("searchUrl"));
                src.put("searchUrl", href.contains("http") ? href : (src.get("baseSearchUrl") + href));
                book_search_zongheng(books, src, keyWord);
            }

        } catch (Exception e) {
            System.err.println("采集数据操作出错");
            e.printStackTrace();
        }
    }

    /**
     *  获取书本详情  纵横中文网采集规则
     * @param src 源目标
     * @param bookUrl 书本链接
     * @return Book对象
     */
    public static Book book_details_zongheng(Map<String, String> src, String bookUrl) {
        Book book = new Book();
        //采集术
        String html = BookUtil.gather(bookUrl, src.get("searchUrl"));
        try {
            //解析html格式的字符串成一个Document
            Document doc = Jsoup.parse(html);

            //书本链接
            book.setBookUrl(bookUrl);
            //图片
            book.setImg(doc.select("div.book-img > img").attr("src"));
            //书名
            book.setBookName(doc.select("div.book-info > div.book-name").text());
            //作者
            book.setAuthor(doc.select("div.book-author div.au-name").text());
            //更新时间
            book.setUpdateDate(doc.select("div.book-new-chapter div.time").text());
            //最新章节
            book.setLatestChapter(doc.select("div.book-new-chapter div.tit a").text());
            book.setLatestChapterUrl(doc.select("div.book-new-chapter div.tit a").attr("href"));
            //类型
            book.setType(doc.select("div.book-label > a").last().text());
            //简介
            book.setSynopsis(doc.select("div.book-dec > p").text());
            //状态
            book.setStatus(doc.select("div.book-label > a").first().text());

            //章节目录
            String chaptersUrl = doc.select("a.all-catalog").attr("href");
            ArrayList<Map<String, String>> chapters = new ArrayList<>();
            //采集术
            for (Element result : Jsoup.parse(BookUtil.gather(chaptersUrl, bookUrl)).select("ul.chapter-list li")) {
                HashMap<String, String> map = new HashMap<>();
                map.put("chapterName", result.select("a").text());
                map.put("url", result.select("a").attr("href"));
                chapters.add(map);
            }
            book.setChapters(chapters);
            //来源
            book.setSource(src);
        } catch (Exception e) {
            System.err.println("采集数据操作出错");
            e.printStackTrace();
        }
        return book;
    }

    /**
     * 得到当前章节名以及完整内容跟上、下一章的链接地址 纵横中文网采集规则
     * @param src 源目标
     * @param chapterUrl 当前章节链接
     * @param refererUrl 来源链接
     * @return Book对象
     */
    public static Book book_read_zongheng(Map<String, String> src,String chapterUrl,String refererUrl) {
        Book book = new Book();

        //当前章节链接
        book.setNowChapterUrl(chapterUrl.contains("http") ? chapterUrl : (src.get("baseUrl") + chapterUrl));

        //采集术
        String html = BookUtil.gather(book.getNowChapterUrl(), refererUrl);
        try {
            //解析html格式的字符串成一个Document
            Document doc = Jsoup.parse(html);

            //当前章节名称
            book.setNowChapter(doc.select("div.title_txtbox").text());

            //删除图片广告
            doc.select("div.content img").remove();
            //当前章节内容
            book.setNowChapterValue(doc.select("div.content").outerHtml());

            //上、下一章
            book.setPrevChapter(doc.select("div.chap_btnbox a:matches((?i)下一章)").text());
            book.setPrevChapterUrl(doc.select("div.chap_btnbox a:matches((?i)下一章)").attr("href"));
            book.setNextChapter(doc.select("div.chap_btnbox a:matches((?i)上一章)").text());
            book.setNextChapterUrl(doc.select("div.chap_btnbox a:matches((?i)上一章)").attr("href"));

            //来源
            book.setSource(src);

        } catch (Exception e) {
            System.err.println("采集数据操作出错");
            e.printStackTrace();
        }
        return book;
    }
}

BookHandler_qidian

/**
 *  起点中文网采集规则
 */
public class BookHandler_qidian {

    /**
     * 来源信息
     */
    public static HashMap<String, String> qidian = new HashMap<>();

    static {
        //起点中文网
        qidian.put("name", "起点中文网");
        qidian.put("key", "qidian");
        qidian.put("baseUrl", "http://www.qidian.com");
        qidian.put("baseSearchUrl", "https://www.qidian.com/search");
        qidian.put("UrlEncode", "UTF-8");
        qidian.put("searchUrl", "https://www.qidian.com/search?kw=#1&page=#2");
    }

    /**
     * 获取search list   起点中文网采集规则
     *
     * @param books   结果集合
     * @param src     源目标
     * @param keyWord 关键字
     */
    public static void book_search_qidian(ArrayList<Book> books, Map<String, String> src, String keyWord) {
        //采集术
        String html = BookUtil.gather(src.get("searchUrl"), src.get("baseUrl"));
        try {
            //解析html格式的字符串成一个Document
            Document doc = Jsoup.parse(html);

            //当前页集合
            Elements resultList = doc.select("li.res-book-item");
            for (Element result : resultList) {
                Book book = new Book();
                /*
                       如果大家打断点在这里的话就会发现，起点的链接是这样的
                       //book.qidian.com/info/1012786368

                       以两个斜杠开头，不过无所谓，httpClient照样可以请求
                 */
                //书本链接
                book.setBookUrl(result.select("div.book-img-box a").attr("href"));
                //图片
                book.setImg(result.select("div.book-img-box img").attr("src"));
                //书名
                book.setBookName(result.select("div.book-mid-info > h4").text());
                //作者
                book.setAuthor(result.select("div.book-mid-info > p.author > a").first().text());
                //类型
                book.setType(result.select("div.book-mid-info > p.author > a").last().text());
                //简介
                book.setSynopsis(result.select("div.book-mid-info > p.intro").text());
                //状态
                book.setStatus(result.select("div.book-mid-info > p.author > span").first().text());
                //更新时间
                book.setUpdateDate(result.select("div.book-mid-info > p.update > span").text());
                //最新章节
                book.setLatestChapter(result.select("div.book-mid-info > p.update > a").text());
                book.setLatestChapterUrl(result.select("div.book-mid-info > p.update > a").attr("href"));
                //来源
                book.setSource(src);
                books.add(book);
            }

            //当前页
            String page = doc.select("div#page-container").attr("data-page");

            //最大页数
            String pageMax = doc.select("div#page-container").attr("data-pageMax");

            //当前页 < 最大页数
            if (Integer.valueOf(page) < Integer.valueOf(pageMax)) {
                src.put("baseUrl", src.get("searchUrl"));
                //自己拼接下一页链接
                src.put("searchUrl", src.get("searchUrl").replaceAll("page=" + Integer.valueOf(page), "page=" + (Integer.valueOf(page) + 1)));
                book_search_qidian(books, src, keyWord);
            }

        } catch (Exception e) {
            System.err.println("采集数据操作出错");
            e.printStackTrace();
        }
    }

    /**
     *  获取书本详情  起点中文网采集规则
     * @param src 源目标
     * @param bookUrl 书本链接
     * @return Book对象
     */
    public static Book book_details_qidian(Map<String, String> src, String bookUrl) {
        Book book = new Book();

        //https
        bookUrl = "https:" + bookUrl;

        //采集术
        String html = BookUtil.gather(bookUrl, src.get("searchUrl"));
        try {
            //解析html格式的字符串成一个Document
            Document doc = Jsoup.parse(html);

            //书本链接
            book.setBookUrl(bookUrl);
            //图片
            String img = doc.select("div.book-img > a#bookImg > img").attr("src");
            img = "https:" + img;
            book.setImg(img);
            //书名
            book.setBookName(doc.select("div.book-info > h1 > em").text());
            //作者
            book.setAuthor(doc.select("div.book-info > h1 a.writer").text());
            //更新时间
            book.setUpdateDate(doc.select("li.update em.time").text());
            //最新章节
            book.setLatestChapter(doc.select("li.update a").text());
            book.setLatestChapterUrl(doc.select("li.update a").attr("href"));
            //类型
            book.setType(doc.select("p.tag > span").first().text());
            //简介
            book.setSynopsis(doc.select("div.book-intro > p").text());
            //状态
            book.setStatus(doc.select("p.tag > a").first().text());

            //章节目录

            //创建httpclient对象 (这里设置成全局变量，相对于同一个请求session、cookie会跟着携带过去)
            BasicCookieStore cookieStore = new BasicCookieStore();
            CloseableHttpClient httpClient = HttpClients.custom().setDefaultCookieStore(cookieStore).build();
            //创建get方式请求对象
            HttpGet httpGet = new HttpGet("https://book.qidian.com/");
            httpGet.addHeader("Content-type", "application/json");
            //包装一下
            httpGet.addHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36");
            httpGet.addHeader("Connection", "keep-alive");
            //通过请求对象获取响应对象
            CloseableHttpResponse response = httpClient.execute(httpGet);
            //获得Cookies
            String _csrfToken = "";
            List<Cookie> cookies = cookieStore.getCookies();
            for (int i = 0; i < cookies.size(); i++) {
                if("_csrfToken".equals(cookies.get(i).getName())){
                    _csrfToken = cookies.get(i).getValue();
                }
            }

            //构造post
            String bookId = doc.select("div.book-img a#bookImg").attr("data-bid");
            HttpPost httpPost = new HttpPost(BookUtil.insertParams("https://book.qidian.com/ajax/book/category?_csrfToken=#1&bookId=#2",_csrfToken,bookId));
            httpPost.addHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36");
            httpPost.addHeader("Connection", "keep-alive");
            //通过请求对象获取响应对象
            CloseableHttpResponse response1 = httpClient.execute(httpPost);
            //获取结果实体(json格式字符串)
            String chaptersJson = "";
            if (response1.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                chaptersJson = EntityUtils.toString(response1.getEntity(), "UTF-8");
            }

            //java处理json
            ArrayList<Map<String, String>> chapters = new ArrayList<>();

            JSONObject jsonArray = JSONObject.fromObject(chaptersJson);
            Map<String,Object> objectMap = (Map<String, Object>) jsonArray;

            Map<String, Object> objectMap_data = (Map<String, Object>) objectMap.get("data");
            List<Map<String, Object>> objectMap_data_vs = (List<Map<String, Object>>) objectMap_data.get("vs");
            for(Map<String, Object> vs : objectMap_data_vs){
                List<Map<String, Object>> cs = (List<Map<String, Object>>) vs.get("cs");
                for(Map<String, Object> chapter : cs){
                    Map<String, String> map = new HashMap<>();
                    map.put("chapterName", (String) chapter.get("cN"));
                    map.put("url", "https://read.qidian.com/chapter/"+(String) chapter.get("cU"));
                    chapters.add(map);
                }
            }

            book.setChapters(chapters);

            //来源
            book.setSource(src);

            //释放链接
            response.close();
        } catch (Exception e) {
            System.err.println("采集数据操作出错");
            e.printStackTrace();
        }
        return book;
    }

    /**
     * 得到当前章节名以及完整内容跟上、下一章的链接地址 起点中文网采集规则
     * @param src 源目标
     * @param chapterUrl 当前章节链接
     * @param refererUrl 来源链接
     * @return Book对象
     */
    public static Book book_read_qidian(Map<String, String> src,String chapterUrl,String refererUrl) {
        Book book = new Book();

        //当前章节链接
        book.setNowChapterUrl(chapterUrl.contains("http") ? chapterUrl : (src.get("baseUrl") + chapterUrl));

        //采集术
        String html = BookUtil.gather(book.getNowChapterUrl(), refererUrl);
        try {
            //解析html格式的字符串成一个Document
            Document doc = Jsoup.parse(html);

            System.out.println(html);

            //当前章节名称
            book.setNowChapter(doc.select("h3.j_chapterName").text());

            //删除图片广告
            doc.select("div.read-content img").remove();
            //当前章节内容
            book.setNowChapterValue(doc.select("div.read-content").outerHtml());

            //上、下一章
            book.setPrevChapter(doc.select("div.chapter-control a:matches((?i)下一章)").text());
            String prev = doc.select("div.chapter-control a:matches((?i)下一章)").attr("href");
            prev = "https:"+prev;
            book.setPrevChapterUrl(prev);
            book.setNextChapter(doc.select("div.chapter-control a:matches((?i)上一章)").text());
            String next = doc.select("div.chapter-control a:matches((?i)上一章)").attr("href");
            next = "https:"+next;
            book.setNextChapterUrl(next);

            //来源
            book.setSource(src);

        } catch (Exception e) {
            System.err.println("采集数据操作出错");
            e.printStackTrace();
        }
        return book;
    }
}

　　四个html页面：

　　book_index

<!DOCTYPE html>
<!--解决idea thymeleaf 表达式模板报红波浪线-->
<!--suppress ALL -->
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>MY BOOK</title>
    <!-- 新 Bootstrap 核心 CSS 文件 -->
    <link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css">
    <style>

        body{
            background-color: antiquewhite;
        }

        .main{
            margin: auto;
            width: 500px;
            margin-top: 150px;
        }

        #bookName{
            width: 300px;
        }

        #title{
            text-align: center;
        }
    </style>
</head>
<body>
    <div class="main">
        <h2 id="title">MY BOOK</h2>
        <form class="form-inline" method="get" th:action="@{/book/search}">
            来源
            <select class="form-control" id="source" name="sourceKey">
                <option value="">所有</option>
                <option value="biquge">笔趣阁</option>
                <option value="zongheng">纵横网</option>
                <option value="qidian">起点网</option>
            </select>
            <input type="text" id="bookName" name="bookName" class="form-control" placeholder="请输入..."/>
            <button class="btn btn-info" type="submit">搜索</button>
        </form>
    </div>
</body>
</html>

　　book_list

<!DOCTYPE html>
<!--解决idea thymeleaf 表达式模板报红波浪线-->
<!--suppress ALL -->
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>BOOK LIST</title>
    <!-- 新 Bootstrap 核心 CSS 文件 -->
    <link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css">
    <link rel="stylesheet" href="http://hanlei.online/Onlineaddress/layui/css/layui.css"/>
    <style>
        body {
            background-color: antiquewhite;
        }

        .main {
            margin: auto;
            width: 500px;
            margin-top: 50px;
        }

        .book {
            border-bottom: solid #428bca 1px;
        }

        .click-book-detail, .click-book-read {
            cursor: pointer;
            color: #428bca;
        }

        .click-book-detail:hover {
            color: rgba(150, 149, 162, 0.47);
        }

        .click-book-read:hover {
            color: rgba(150, 149, 162, 0.47);
        }
    </style>
</head>
<body>
<div class="main">
    <form class="form-inline" method="get" th:action="@{/book/search}">
        来源
        <select class="form-control" id="source" name="sourceKey">
            <option value="">所有</option>
            <option value="biquge" th:selected="${sourceKey} == 'biquge'">笔趣阁</option>
            <option value="zongheng" th:selected="${sourceKey} == 'zongheng'">纵横网</option>
            <option value="qidian" th:selected="${sourceKey} == 'qidian'">起点网</option>
        </select>
        <input type="text" id="bookName" name="bookName" class="form-control" placeholder="请输入..."
               th:value="${keyWord}"/>
        <button class="btn btn-info" type="submit">搜索</button>
    </form>
    <br/>
    <div id="books"></div>
    <div id="page"></div>
</div>
</body>
<!-- jquery在线版本 -->
<script src="http://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>
<script src="http://hanlei.online/Onlineaddress/layui/layui.js"></script>
<script th:inline="javascript">
    var ctx = /*[[@{/}]]*/'';
    var books = [[${books}]];//取出后台数据
    var nums = 10; //每页出现的数量
    var pages = books.length; //总数

    /**
     * 传入当前页，根据nums去计算，从books集合截取对应数据做展示
     */
    var thisDate = function (curr) {
        var str = "",//当前页需要展示的html
            first = (curr * nums - nums),//展示的第一条数据的下标
            last = curr * nums - 1;//展示的最后一条数据的下标
        last = last >= books.length ? (books.length - 1) : last;
        for (var i = first; i <= last; i++) {
            var book = books[i];
            str += "<div class='book'>" +
                "<img class='click-book-detail' data-bookurl='" + book.bookUrl + "' data-sourcekey='" + book.source.key + "' data-searchurl='" + book.source.searchUrl + "' src='" + book.img + "'></img>" +
                "<p class='click-book-detail' data-bookurl='" + book.bookUrl + "' data-sourcekey='" + book.source.key + "' data-searchurl='" + book.source.searchUrl + "'>书名：" + book.bookName + "</p>" +
                "<p>作者：" + book.author + "</p>" +
                "<p>简介：" + book.synopsis + "</p>" +
                "<p class='click-book-read' data-chapterurl='" + book.latestChapterUrl + "' data-sourcekey='" + book.source.key + "' data-refererurl='" + book.source.refererurl + "'>最新章节：" + book.latestChapter + "</p>" +
                "<p>更新时间：" + book.updateDate + "</p>" +
                "<p>大小：" + book.magnitude + "</p>" +
                "<p>状态：" + book.status + "</p>" +
                "<p>类型：" + book.type + "</p>" +
                "<p>来源：" + book.source.name + "</p>" +
                "</div><br/>";
        }
        return str;
    };

    //获取一个laypage实例
    layui.use('laypage', function () {
        var laypage = layui.laypage;

        //调用laypage 逻辑分页
        laypage.render({
            elem: 'page',
            count: pages,
            limit: nums,
            jump: function (obj) {
                //obj包含了当前分页的所有参数，比如：
                // console.log(obj.curr); //得到当前页，以便向服务端请求对应页的数据。
                // console.log(obj.limit); //得到每页显示的条数
                document.getElementById('books').innerHTML = thisDate(obj.curr);
            },
            prev: '<',
            next: '>',
            theme: '#f9c357',
        })
    });

    $("body").on("click", ".click-book-detail", function (even) {
        var bookUrl = $(this).data("bookurl");
        var searchUrl = $(this).data("searchurl");
        var sourceKey = $(this).data("sourcekey");
        window.location.href = ctx + "/book/details?sourceKey=" + sourceKey + "&searchUrl=" + searchUrl + "&bookUrl=" + bookUrl;
    });
    $("body").on("click", ".click-book-read", function (even) {
        var chapterUrl = $(this).data("chapterurl");
        var refererUrl = $(this).data("refererurl");
        var sourceKey = $(this).data("sourcekey");
        window.location.href = ctx + "/book/read?sourceKey=" + sourceKey + "&refererUrl=" + refererUrl + "&chapterUrl=" + chapterUrl;
    });
</script>
</html>

book_details

<!DOCTYPE html>
<!--解决idea thymeleaf 表达式模板报红波浪线-->
<!--suppress ALL -->
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>BOOK DETAILS</title>
    <!-- 新 Bootstrap 核心 CSS 文件 -->
    <link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css">
    <link rel="stylesheet" href="http://hanlei.online/Onlineaddress/layui/css/layui.css"/>
    <style>
        body {
            background-color: antiquewhite;
        }

        .main {
            margin: auto;
            width: 500px;
            margin-top: 150px;
        }

        .book {
            border-bottom: solid #428bca 1px;
        }

        .click-book-detail, .click-book-read {
            cursor: pointer;
            color: #428bca;
        }

        .click-book-detail:hover {
            color: rgba(150, 149, 162, 0.47);
        }

        .click-book-read:hover {
            color: rgba(150, 149, 162, 0.47);
        }

        a {
            color: #428bca;
        }

    </style>
</head>
<body>
<div class="main">
    <div class='book'>
        <div id="bookImg"></div>
        <p>书名：<span th:text="${book.bookName}"></span></p>
        <p>作者：<span th:text="${book.author}"></span></p>
        <p>简介：<span th:text="${book.synopsis}"></span></p>
        <p>最新章节：<a th:href="${book.latestChapterUrl}" th:text="${book.latestChapter}"></a></p>
        <p>更新时间：<span th:text="${book.updateDate}"></span></p>
        <p>大小：<span th:text="${book.magnitude}"></span></p>
        <p>状态：<span th:text="${book.status}"></span></p>
        <p>类型：<span th:text="${book.type}"></span></p>
        <p>来源：<span th:text="${book.source.name}"></span></p>
    </div>
    <br/>
    <div class="chapters" th:each="chapter,iterStat:${book.chapters}">
        <p class="click-book-read" th:attr="data-chapterurl=${chapter.url},data-sourcekey=${book.source.key},data-refererurl=${book.bookUrl}" th:text="${chapter.chapterName}"></p>
    </div>
</div>
</body>
<!-- jquery在线版本 -->
<script src="http://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>
<script th:inline="javascript">
    var ctx = /*[[@{/}]]*/'';
    var book = [[${book}]];//取出后台数据

    /**
     * 反防盗链
     */
    function showImg(parentObj, url) {
        //来一个随机数
        var frameid = 'frameimg' + Math.random();
        //放在（父页面）window里面   iframe的script标签里面绑定了window.onload，作用：设置iframe的高度、宽度 <script>window.onload = function() {  parent.document.getElementById(\'' + frameid + '\').height = document.getElementById(\'img\').height+\'px\'; }<' + '/script>
        window.img = '<img src=\'' + url + '?' + Math.random() + '\'/>';
        //iframe调用parent.img
        $(parentObj).append('<iframe id="' + frameid + '" src="javascript:parent.img;" frameBorder="0" scrolling="no"></iframe>');
    }

    showImg($("#bookImg"), book.img);

    $("body").on("click", ".click-book-read", function (even) {
        var chapterUrl = $(this).data("chapterurl");
        var refererUrl = $(this).data("refererurl");
        var sourceKey = $(this).data("sourcekey");
        window.location.href = ctx + "/book/read?sourceKey=" + sourceKey + "&refererUrl=" + refererUrl + "&chapterUrl=" + chapterUrl;
    });

</script>
</html>

　　book_read

<!DOCTYPE html>
<!--解决idea thymeleaf 表达式模板报红波浪线-->
<!--suppress ALL -->
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>BOOK READ</title>
    <style>
        body {
            background-color: antiquewhite;
        }

        .main {
            padding: 10px 20px;
        }

        .click-book-detail, .click-book-read {
            cursor: pointer;
            color: #428bca;
        }

        .click-book-detail:hover {
            color: rgba(150, 149, 162, 0.47);
        }

        .click-book-read:hover {
            color: rgba(150, 149, 162, 0.47);
        }

        .float-left{
            float: left;
            margin-left: 70px;
        }
    </style>
</head>
<body>
<div class="main">
    <!-- 章节名称 -->
    <h3 th:text="${book.nowChapter}"></h3>
    <!-- 章节内容 -->
    <p th:utext="${book.nowChapterValue}"></p>
    <!-- 上、下章 -->
    <p class="click-book-read float-left"
       th:attr="data-chapterurl=${book.nextChapterUrl},data-sourcekey=${book.source.key},data-refererurl=${book.nowChapterUrl}"
       th:text="${book.nextChapter}"></p>
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
    <p class="click-book-read float-left"
       th:attr="data-chapterurl=${book.prevChapterUrl},data-sourcekey=${book.source.key},data-refererurl=${book.nowChapterUrl}"
       th:text="${book.prevChapter}"></p>
</div>
</body>
<!-- jquery在线版本 -->
<script src="http://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>
<script th:inline="javascript">
    var ctx = /*[[@{/}]]*/'';
    $("body").on("click", ".click-book-read", function (even) {
        var chapterUrl = $(this).data("chapterurl");
        var refererUrl = $(this).data("refererurl");
        var sourceKey = $(this).data("sourcekey");
        window.location.href = ctx + "/book/read?sourceKey=" + sourceKey + "&refererUrl=" + refererUrl + "&chapterUrl=" + chapterUrl;
    });
</script>
</html>

　　补充

　　2019-07-17补充：我们之前三个来源网站的baseUrl都是用http，但网站后面都升级成了https，例如笔趣阁：

　　导致抓取数据时报错

javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
    at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1514)
    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1026)
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:961)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)
    at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:396)
    at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:355)
    at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:142)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:373)
    at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:381)
    at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:237)
    at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:185)
    at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
    at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:111)
    at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108)
    at cn.huanzi.qch.spider.novelreading.util.BookUtil.gather(BookUtil.java:81)
    at cn.huanzi.qch.spider.novelreading.pojo.BookHandler_biquge.book_search_biquge(BookHandler_biquge.java:43)
    at cn.huanzi.qch.spider.novelreading.controller.BookContrller.search(BookContrller.java:78)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:215)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:142)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:998)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:890)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:875)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:770)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:748)

　　解决办法：参考https://blog.csdn.net/xiaoxian8023/article/details/49865335，绕过证书验证

　　在BookUtil.java中新增方法

    /**
     * 绕过SSL验证
     */
    private static SSLContext createIgnoreVerifySSL() throws NoSuchAlgorithmException, KeyManagementException {
        SSLContext sc = SSLContext.getInstance("SSLv3");

        // 实现一个X509TrustManager接口，用于绕过验证，不用修改里面的方法
        X509TrustManager trustManager = new X509TrustManager() {
            @Override
            public void checkClientTrusted(
                    java.security.cert.X509Certificate[] paramArrayOfX509Certificate,
                    String paramString) throws CertificateException {
            }

            @Override
            public void checkServerTrusted(
                    java.security.cert.X509Certificate[] paramArrayOfX509Certificate,
                    String paramString) throws CertificateException {
            }

            @Override
            public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                return null;
            }
        };

        sc.init(null, new TrustManager[]{trustManager}, null);
        return sc;
    }

　　然后在gather方法中改成这样获取httpClient

    /**
     * 采集当前url完整response实体.toString()
     *
     * @param url url
     * @return response实体.toString()
     */
    public static String gather(String url, String refererUrl) {
        String result = null;
        try {
            //采用绕过验证的方式处理https请求
            SSLContext sslcontext = createIgnoreVerifySSL();

            // 设置协议http和https对应的处理socket链接工厂的对象
            Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
                    .register("http", PlainConnectionSocketFactory.INSTANCE)
                    .register("https", new SSLConnectionSocketFactory(sslcontext))
                    .build();
            PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
            HttpClients.custom().setConnectionManager(connManager);

            //创建自定义的httpclient对象
            CloseableHttpClient httpClient = HttpClients.custom().setConnectionManager(connManager).build();

            //创建httpclient对象 (这里设置成全局变量，相对于同一个请求session、cookie会跟着携带过去)
//            CloseableHttpClient httpClient = HttpClients.createDefault();

            //创建get方式请求对象
            HttpGet httpGet = new HttpGet(url);
            httpGet.addHeader("Content-type", "application/json");
            //包装一下
            httpGet.addHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36");
            httpGet.addHeader("Referer", refererUrl);
            httpGet.addHeader("Connection", "keep-alive");

            //通过请求对象获取响应对象
            CloseableHttpResponse response = httpClient.execute(httpGet);
            //获取结果实体
            if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                result = EntityUtils.toString(response.getEntity(), "GBK");
            }

            //释放链接
            response.close();
        }
        //这里还可以捕获超时异常，重新连接抓取
        catch (Exception e) {
            result = null;
            System.err.println("采集操作出错");
            e.printStackTrace();
        }
        return result;
    }

　　这样就可以正常抓取了

　　我们之前获取项目路径用的是

var ctx = /*[[@{/}]]*/'';

　　突然发现不行了，跳转的路径直接是/开头，现在改成这样获取

    //项目路径
    var ctx = [[${#request.getContextPath()}]];

　　2019-08-01补充：大家如果看到有这个报错，连接被重置，不要慌张，有可能是网站换域名了比如现在我们程序请求的是http://www.biquge.com.tw，但这个网址已经不能访问了，笔趣阁已经改成https://www.biqudu.net/，我们改一下代码就可以解决问题，要注意检查各个源路径是否能正常访问，同时对方也可能改页面格式，导致我们之前的规则无法匹配获取数据，这种情况只能重新编写爬取规则了

　　2019-08-02补充：发现了个bug，我们的BookUtil.insertParams方法原理是替换#字符串

    /**
     * 自动注入参数
     * 例如：
     *
     * @param src    http://search.zongheng.com/s?keyword=#1&pageNo=#2&sort=
     * @param params "斗破苍穹","1"
     * @return http://search.zongheng.com/s?keyword=斗破苍穹&pageNo=1&sort=
     */
    public static String insertParams(String src, String... params) {
        int i = 1;
        for (String param : params) {
            src = src.replaceAll("#" + i, param);
            i++;
        }
        return src;
    }

　　但是我们在搜索的时候，调用参数自动注入，形参src的值是来自静态属性Map，初始化的时候有两个#字符串，在进行第一次搜索之后，#字符串被替换了，后面再进行搜索注入参数已经没有#字符串了，因此后面的搜索结果都是第一次的结果...

　　解决：获取来源时不是用=赋值，而是复制一份，三个方法都要改

　　修改前：

        //获取来源详情
        Map<String, String> src = source.get(sourceKey);

　　修改后：

        //获取来源详情，复制一份
        Map<String, String> src = new HashMap<>();
        src.putAll(source.get(sourceKey));

　　多端开发

　　公司最近打算做手机端，学习了DCloud公司的uni-app，开发工具是HBuilderX，并用我们的小说爬虫学习、练手，做了个H5手机端的页面

　　DCloud公司官网：https://www.dcloud.io/

　　uni-app官网：https://uniapp.dcloud.io/

　　uni-app 是一个使用 Vue.js 开发所有前端应用的框架，开发者编写一套代码，可编译到iOS、Android、H5、以及各种小程序等多个平台。

　　

　　效果图：

　　

　　代码开源

　　代码已经开源、托管到我的GitHub、码云：

　　GitHub：https://github.com/huanzi-qch/spider

　　码云：https://gitee.com/huanzi-qch/spider