feat: 新增小说内容查询接口

src/main/java/io/github/xxyopen/novel/controller/front/BookController.java

@@ -2,6 +2,7 @@ package io.github.xxyopen.novel.controller.front;
 
 import io.github.xxyopen.novel.core.common.constant.ApiRouterConsts;
 import io.github.xxyopen.novel.core.common.resp.RestResp;
+import io.github.xxyopen.novel.dto.resp.BookContentRespDto;
 import io.github.xxyopen.novel.dto.resp.BookInfoRespDto;
 import io.github.xxyopen.novel.dto.resp.BookRankRespDto;
 import io.github.xxyopen.novel.service.BookService;
@@ -30,8 +31,16 @@ public class BookController {
      * 小说信息查询接口
      * */
     @GetMapping("{bookId}")
-    public RestResp<BookInfoRespDto> getById(@PathVariable("bookId") Long bookId){
+    public RestResp<BookInfoRespDto> getBookById(@PathVariable("bookId") Long bookId){
-        return bookService.getById(bookId);
+        return bookService.getBookById(bookId);
+    }
+
+    /**
+     * 小说章节内容查询接口
+     * */
+    @GetMapping("content/{chapterId}")
+    public RestResp<BookContentRespDto> getBookContent(@PathVariable("chapterId") Long chapterId){
+        return bookService.getBookContent(chapterId);
     }
 
     /**

src/main/java/io/github/xxyopen/novel/core/constant/CacheConsts.java

@@ -10,73 +10,88 @@ public class CacheConsts {
 
     /**
      * 本项目 Redis 缓存前缀
-     * */
+     */
     public static final String REDIS_CACHE_PREFIX = "Cache::Novel::";
 
 
     /**
      * Caffeine 缓存管理器
-     * */
+     */
     public static final String CAFFEINE_CACHE_MANAGER = "caffeineCacheManager";
 
     /**
      * Redis 缓存管理器
-     * */
+     */
     public static final String REDIS_CACHE_MANAGER = "redisCacheManager";
 
     /**
      * 首页小说推荐缓存
-     * */
+     */
     public static final String HOME_BOOK_CACHE_NAME = "homeBookCache";
 
     /**
      * 最新新闻缓存
-     * */
+     */
     public static final String LATEST_NEWS_CACHE_NAME = "latestNewsCache";
 
     /**
      * 小说点击榜缓存
-     * */
+     */
     public static final String BOOK_VISIT_RANK_CACHE_NAME = "bookVisitRankCache";
 
     /**
      * 小说新书榜缓存
-     * */
+     */
     public static final String BOOK_NEWEST_RANK_CACHE_NAME = "bookNewestRankCache";
 
     /**
      * 小说更新榜缓存
-     * */
+     */
     public static final String BOOK_UPDATE_RANK_CACHE_NAME = "bookUpdateRankCache";
 
     /**
      * 首页友情链接缓存
-     * */
+     */
     public static final String HOME_FRIEND_LINK_CACHE_NAME = "homeFriendLinkCache";
 
-    /**小说信息缓存*/
+    /**
+     * 小说信息缓存
+     */
     public static final String BOOK_INFO_CACHE_NAME = "bookInfoCache";
 
+    /**
+     * 小说章节缓存
+     */
+    public static final String BOOK_CHAPTER_CACHE_NAME = "bookChapterCache";
+
+    /**
+     * 小说内容缓存
+     */
+    public static final String BOOK_CONTENT_CACHE_NAME = "bookContentCache";
+
 
     /**
      * 缓存配置常量
      */
     public enum CacheEnum {
 
-        HOME_BOOK_CACHE(0,HOME_BOOK_CACHE_NAME,60 * 60 * 24,1),
+        HOME_BOOK_CACHE(0, HOME_BOOK_CACHE_NAME, 60 * 60 * 24, 1),
 
-        LATEST_NEWS_CACHE(0,LATEST_NEWS_CACHE_NAME,60 * 10,1),
+        LATEST_NEWS_CACHE(0, LATEST_NEWS_CACHE_NAME, 60 * 10, 1),
 
-        BOOK_VISIT_RANK_CACHE(2,BOOK_VISIT_RANK_CACHE_NAME,60 * 60 * 6,1),
+        BOOK_VISIT_RANK_CACHE(2, BOOK_VISIT_RANK_CACHE_NAME, 60 * 60 * 6, 1),
 
-        BOOK_NEWEST_RANK_CACHE(0,BOOK_NEWEST_RANK_CACHE_NAME,60 * 30,1),
+        BOOK_NEWEST_RANK_CACHE(0, BOOK_NEWEST_RANK_CACHE_NAME, 60 * 30, 1),
 
-        BOOK_UPDATE_RANK_CACHE(0,BOOK_UPDATE_RANK_CACHE_NAME,60,1),
+        BOOK_UPDATE_RANK_CACHE(0, BOOK_UPDATE_RANK_CACHE_NAME, 60, 1),
 
-        HOME_FRIEND_LINK_CACHE(2,HOME_FRIEND_LINK_CACHE_NAME,0,1),
+        HOME_FRIEND_LINK_CACHE(2, HOME_FRIEND_LINK_CACHE_NAME, 0, 1),
 
-        BOOK_INFO_CACHE(0,BOOK_INFO_CACHE_NAME,60 * 60 * 18, 500)
+        BOOK_INFO_CACHE(0, BOOK_INFO_CACHE_NAME, 60 * 60 * 18, 500),
-        ;
+
+        BOOK_CHAPTER_CACHE(0,BOOK_CHAPTER_CACHE_NAME,60 * 60 * 6,5000),
+
+        BOOK_CONTENT_CACHE(2, BOOK_CONTENT_CACHE_NAME, 60 * 60 * 12, 3000);
 
         /**
          * 缓存类型 0-本地 1-本地和远程 2-远程

src/main/java/io/github/xxyopen/novel/dto/resp/BookChapterRespDto.java

@@ -0,0 +1,49 @@
+package io.github.xxyopen.novel.dto.resp;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import lombok.Builder;
+import lombok.Data;
+
+import java.io.Serial;
+import java.io.Serializable;
+import java.time.LocalDateTime;
+
+/**
+ * 小说章节 响应DTO
+ * @author xiongxiaoyang
+ * @date 2022/5/15
+ */
+@Data
+@Builder
+public class BookChapterRespDto implements Serializable {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 小说ID
+     */
+    private Long bookId;
+
+    /**
+     * 章节名
+     */
+    private String chapterName;
+
+    /**
+     * 章节字数
+     */
+    private Integer chapterWordCount;
+
+    /**
+     * 章节更新时间
+     * */
+    @JsonFormat(pattern = "yyyy/MM/dd HH:dd")
+    private LocalDateTime chapterUpdateTime;
+
+    /**
+     * 内容概要（20字）
+     */
+    private String contentSummary;
+
+}

src/main/java/io/github/xxyopen/novel/dto/resp/BookContentRespDto.java

@@ -0,0 +1,69 @@
+package io.github.xxyopen.novel.dto.resp;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import lombok.Builder;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/**
+ * 小说内容 响应DTO
+ * @author xiongxiaoyang
+ * @date 2022/5/15
+ */
+@Data
+@Builder
+public class BookContentRespDto {
+
+    /**
+     * 小说 ID
+     */
+    private Long bookId;
+
+    /**
+     * 类别ID
+     */
+    private Long categoryId;
+
+    /**
+     * 类别名
+     */
+    private String categoryName;
+
+    /**
+     * 小说名
+     */
+    private String bookName;
+
+    /**
+     * 作家id
+     */
+    private Long authorId;
+
+    /**
+     * 作家名
+     */
+    private String authorName;
+
+    /**
+     * 章节名
+     */
+    private String chapterName;
+
+    /**
+     * 章节字数
+     */
+    private Integer chapterWordCount;
+
+    /**
+     * 章节更新时间
+     * */
+    @JsonFormat(pattern = "yyyy/MM/dd HH:dd")
+    private LocalDateTime chapterUpdateTime;
+
+    /**
+     * 章节内容
+     */
+    private String content;
+
+}

src/main/java/io/github/xxyopen/novel/dto/resp/BookInfoRespDto.java

@@ -77,5 +77,10 @@ public class BookInfoRespDto {
      * */
     private Long firstChapterId;
 
+    /**
+     * 最新章节ID
+     */
+    private Long lastChapterId;
+
 
 }

src/main/java/io/github/xxyopen/novel/manager/BookChapterCacheManager.java

@@ -0,0 +1,39 @@
+package io.github.xxyopen.novel.manager;
+
+import io.github.xxyopen.novel.core.constant.CacheConsts;
+import io.github.xxyopen.novel.dao.entity.BookChapter;
+import io.github.xxyopen.novel.dao.mapper.BookChapterMapper;
+import io.github.xxyopen.novel.dto.resp.BookChapterRespDto;
+import lombok.RequiredArgsConstructor;
+import org.springframework.cache.annotation.Cacheable;
+import org.springframework.stereotype.Component;
+
+/**
+ * 小说章节 缓存管理类
+ *
+ * @author xiongxiaoyang
+ * @date 2022/5/12
+ */
+@Component
+@RequiredArgsConstructor
+public class BookChapterCacheManager {
+
+    private final BookChapterMapper bookChapterMapper;
+
+    /**
+     * 查询小说章节信息，并放入缓存中
+     */
+    @Cacheable(cacheManager = CacheConsts.CAFFEINE_CACHE_MANAGER
+            , value = CacheConsts.BOOK_CHAPTER_CACHE_NAME)
+    public BookChapterRespDto getChapter(Long chapterId) {
+        BookChapter bookChapter = bookChapterMapper.selectById(chapterId);
+        return BookChapterRespDto.builder()
+                .bookId(bookChapter.getBookId())
+                .chapterName(bookChapter.getChapterName())
+                .chapterWordCount(bookChapter.getWordCount())
+                .chapterUpdateTime(bookChapter.getUpdateTime())
+                .build();
+    }
+
+
+}

src/main/java/io/github/xxyopen/novel/manager/BookContentCacheManager.java

@@ -0,0 +1,36 @@
+package io.github.xxyopen.novel.manager;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import io.github.xxyopen.novel.core.constant.CacheConsts;
+import io.github.xxyopen.novel.dao.entity.BookContent;
+import io.github.xxyopen.novel.dao.mapper.BookContentMapper;
+import lombok.RequiredArgsConstructor;
+import org.springframework.cache.annotation.Cacheable;
+import org.springframework.stereotype.Component;
+
+/**
+ * 小说内容 缓存管理类
+ *
+ * @author xiongxiaoyang
+ * @date 2022/5/12
+ */
+@Component
+@RequiredArgsConstructor
+public class BookContentCacheManager {
+
+    private final BookContentMapper bookContentMapper;
+
+    /**
+     * 查询小说内容，并放入缓存中
+     */
+    @Cacheable(cacheManager = CacheConsts.REDIS_CACHE_MANAGER
+            , value = CacheConsts.BOOK_CONTENT_CACHE_NAME)
+    public String getBookContent(Long chapterId) {
+        QueryWrapper<BookContent> contentQueryWrapper = new QueryWrapper<>();
+        contentQueryWrapper.eq("chapter_id",chapterId).last("limit 1");
+        BookContent bookContent = bookContentMapper.selectOne(contentQueryWrapper);
+        return bookContent.getContent();
+    }
+
+
+}

src/main/java/io/github/xxyopen/novel/manager/BookInfoCacheManager.java

@@ -33,7 +33,7 @@ public class BookInfoCacheManager {
     public BookInfoRespDto getBookInfo(Long id) {
         // 查询基础信息
         BookInfo bookInfo = bookInfoMapper.selectById(id);
-        // 查询最新章节ID
+        // 查询首章ID
         QueryWrapper<BookChapter> queryWrapper = new QueryWrapper<>();
         queryWrapper
                 .eq("book_id", id)
@@ -52,6 +52,7 @@ public class BookInfoCacheManager {
                 .categoryName(bookInfo.getCategoryName())
                 .commentCount(bookInfo.getCommentCount())
                 .firstChapterId(firstBookChapter.getId())
+                .lastChapterId(bookInfo.getLastChapterId())
                 .picUrl(bookInfo.getPicUrl())
                 .visitCount(bookInfo.getVisitCount())
                 .wordCount(bookInfo.getWordCount())

src/main/java/io/github/xxyopen/novel/service/BookService.java

@@ -1,6 +1,7 @@
 package io.github.xxyopen.novel.service;
 
 import io.github.xxyopen.novel.core.common.resp.RestResp;
+import io.github.xxyopen.novel.dto.resp.BookContentRespDto;
 import io.github.xxyopen.novel.dto.resp.BookInfoRespDto;
 import io.github.xxyopen.novel.dto.resp.BookRankRespDto;
 
@@ -32,5 +33,10 @@ public interface BookService {
     /**
      * 小说信息查询
      * */
-    RestResp<BookInfoRespDto> getById(Long bookId);
+    RestResp<BookInfoRespDto> getBookById(Long bookId);
+
+    /**
+     * 小说章节内容查询
+     * */
+    RestResp<BookContentRespDto> getBookContent(Long chapterId);
 }

src/main/java/io/github/xxyopen/novel/service/impl/BookServiceImpl.java

@@ -1,8 +1,13 @@
 package io.github.xxyopen.novel.service.impl;
 
 import io.github.xxyopen.novel.core.common.resp.RestResp;
+import io.github.xxyopen.novel.dao.mapper.BookChapterMapper;
+import io.github.xxyopen.novel.dto.resp.BookChapterRespDto;
+import io.github.xxyopen.novel.dto.resp.BookContentRespDto;
 import io.github.xxyopen.novel.dto.resp.BookInfoRespDto;
 import io.github.xxyopen.novel.dto.resp.BookRankRespDto;
+import io.github.xxyopen.novel.manager.BookChapterCacheManager;
+import io.github.xxyopen.novel.manager.BookContentCacheManager;
 import io.github.xxyopen.novel.manager.BookInfoCacheManager;
 import io.github.xxyopen.novel.manager.BookRankCacheManager;
 import io.github.xxyopen.novel.service.BookService;
@@ -25,6 +30,12 @@ public class BookServiceImpl implements BookService {
 
     private final BookInfoCacheManager bookInfoCacheManager;
 
+    private final BookChapterCacheManager bookChapterCacheManager;
+
+    private final BookContentCacheManager bookContentCacheManager;
+
+    private final BookChapterMapper bookChapterMapper;
+
     @Override
     public RestResp<List<BookRankRespDto>> listVisitRankBooks() {
         return RestResp.ok(bookRankCacheManager.listVisitRankBooks());
@@ -41,7 +52,33 @@ public class BookServiceImpl implements BookService {
     }
 
     @Override
-    public RestResp<BookInfoRespDto> getById(Long bookId) {
+    public RestResp<BookInfoRespDto> getBookById(Long bookId) {
         return RestResp.ok(bookInfoCacheManager.getBookInfo(bookId));
     }
+
+    @Override
+    public RestResp<BookContentRespDto> getBookContent(Long chapterId) {
+        // 查询章节信息
+        BookChapterRespDto bookChapter = bookChapterCacheManager.getChapter(chapterId);
+
+        // 查询章节内容
+        String content  = bookContentCacheManager.getBookContent(chapterId);
+
+        // 查询小说信息
+        BookInfoRespDto bookInfo = bookInfoCacheManager.getBookInfo(bookChapter.getBookId());
+
+        // 组装数据并返回
+        return RestResp.ok(BookContentRespDto.builder()
+                        .authorId(bookInfo.getAuthorId())
+                        .bookName(bookInfo.getBookName())
+                        .authorName(bookInfo.getAuthorName())
+                        .bookId(bookInfo.getId())
+                        .content(content)
+                        .categoryId(bookInfo.getCategoryId())
+                        .categoryName(bookInfo.getCategoryName())
+                        .chapterName(bookChapter.getChapterName())
+                        .chapterUpdateTime(bookChapter.getChapterUpdateTime())
+                        .chapterWordCount(bookChapter.getChapterWordCount())
+                        .build());
+    }
 }