feat：更新文章存储逻辑

Author: yqz

OpenBlog-business/pom.xml

@@ -91,6 +91,12 @@
             <version>8.5.17</version>
         </dependency>
 
+        <dependency>
+            <groupId>com.vladsch.flexmark</groupId>
+            <artifactId>flexmark-all</artifactId>
+            <version>0.64.8</version>
+        </dependency>
+
         <dependency>
             <groupId>org.yaml</groupId>
             <artifactId>snakeyaml</artifactId>

OpenBlog-business/src/main/java/com/yqz/openblog/article/dto/ArticleDetailResponse.java

@@ -9,6 +9,7 @@ public class ArticleDetailResponse {
     private String title;
     private String summary;
     private String contentMarkdown;
+    private String contentHtml;
     private String coverMediaKey;
     private Long authorId;
     private String authorNickname;
@@ -56,6 +57,14 @@ public void setContentMarkdown(String contentMarkdown) {
         this.contentMarkdown = contentMarkdown;
     }
 
+    public String getContentHtml() {
+        return contentHtml;
+    }
+
+    public void setContentHtml(String contentHtml) {
+        this.contentHtml = contentHtml;
+    }
+
     public String getCoverMediaKey() {
         return coverMediaKey;
     }

OpenBlog-business/src/main/java/com/yqz/openblog/article/dto/ArticlePublishedContentCachePayload.java

@@ -13,6 +13,7 @@ public class ArticlePublishedContentCachePayload {
     private String title;
     private String summary;
     private String contentMarkdown;
+    private String contentHtml;
     private String coverMediaKey;
     private Long authorId;
     private String authorNickname;
@@ -30,6 +31,7 @@ public static ArticlePublishedContentCachePayload fromDetail(ArticleDetailRespon
         p.setTitle(d.getTitle());
         p.setSummary(d.getSummary());
         p.setContentMarkdown(d.getContentMarkdown());
+        p.setContentHtml(d.getContentHtml());
         p.setCoverMediaKey(d.getCoverMediaKey());
         p.setAuthorId(d.getAuthorId());
         p.setAuthorNickname(d.getAuthorNickname());
@@ -75,6 +77,14 @@ public void setContentMarkdown(String contentMarkdown) {
         this.contentMarkdown = contentMarkdown;
     }
 
+    public String getContentHtml() {
+        return contentHtml;
+    }
+
+    public void setContentHtml(String contentHtml) {
+        this.contentHtml = contentHtml;
+    }
+
     public String getCoverMediaKey() {
         return coverMediaKey;
     }

OpenBlog-business/src/main/java/com/yqz/openblog/article/entity/Article.java

@@ -28,9 +28,6 @@ public class Article {
     @Column(length = 255)
     private String summary;
 
-    @Column(nullable = false, columnDefinition = "TEXT")
-    private String contentMarkdown;
-
     @Column(length = 64)
     private String coverMediaKey;
 
@@ -123,14 +120,6 @@ public void setSummary(String summary) {
         this.summary = summary;
     }
 
-    public String getContentMarkdown() {
-        return contentMarkdown;
-    }
-
-    public void setContentMarkdown(String contentMarkdown) {
-        this.contentMarkdown = contentMarkdown;
-    }
-
     public String getCoverMediaKey() {
         return coverMediaKey;
     }

OpenBlog-business/src/main/java/com/yqz/openblog/article/entity/ArticleBody.java

@@ -0,0 +1,91 @@
+package com.yqz.openblog.article.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import jakarta.persistence.*;
+
+import java.time.Instant;
+
+@Entity
+@TableName("article_bodies")
+@Table(name = "article_bodies", indexes = {
+        @Index(name = "idx_article_bodies_word_count", columnList = "word_count")
+})
+public class ArticleBody {
+
+    @TableId(value = "article_id", type = IdType.INPUT)
+    @Id
+    private Long articleId;
+
+    @Column(nullable = false, columnDefinition = "MEDIUMTEXT")
+    private String contentMarkdown;
+
+    @Column(columnDefinition = "MEDIUMTEXT")
+    private String contentHtml;
+
+    @Column
+    private Integer wordCount;
+
+    @Column(nullable = false)
+    private Instant createdAt;
+
+    @Column(nullable = false)
+    private Instant updatedAt;
+
+    @PrePersist
+    public void prePersist() {
+        Instant now = Instant.now();
+        createdAt = now;
+        updatedAt = now;
+        if (wordCount == null) wordCount = 0;
+    }
+
+    @PreUpdate
+    public void preUpdate() {
+        updatedAt = Instant.now();
+    }
+
+    public ArticleBody() {
+    }
+
+    public Long getArticleId() {
+        return articleId;
+    }
+
+    public void setArticleId(Long articleId) {
+        this.articleId = articleId;
+    }
+
+    public String getContentMarkdown() {
+        return contentMarkdown;
+    }
+
+    public void setContentMarkdown(String contentMarkdown) {
+        this.contentMarkdown = contentMarkdown;
+    }
+
+    public String getContentHtml() {
+        return contentHtml;
+    }
+
+    public void setContentHtml(String contentHtml) {
+        this.contentHtml = contentHtml;
+    }
+
+    public Integer getWordCount() {
+        return wordCount;
+    }
+
+    public void setWordCount(Integer wordCount) {
+        this.wordCount = wordCount;
+    }
+
+    public Instant getCreatedAt() {
+        return createdAt;
+    }
+
+    public Instant getUpdatedAt() {
+        return updatedAt;
+    }
+}

OpenBlog-business/src/main/java/com/yqz/openblog/article/repo/ArticleBodyMapper.java

@@ -0,0 +1,23 @@
+package com.yqz.openblog.article.repo;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.yqz.openblog.article.entity.ArticleBody;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Update;
+
+@Mapper
+public interface ArticleBodyMapper extends BaseMapper<ArticleBody> {
+
+    @Update("""
+            update article_bodies
+            set content_html = #{html},
+                word_count = #{wordCount},
+                updated_at = now(6)
+            where article_id = #{articleId}
+              and content_html is null
+            """)
+    int backfillHtmlIfNull(@Param("articleId") Long articleId,
+                           @Param("html") String html,
+                           @Param("wordCount") int wordCount);
+}