修改查询语句

src/main/java/cn/celess/blog/entity/Article.java

@@ -3,6 +3,7 @@ package cn.celess.blog.entity;
 import lombok.Data;
 
 import java.util.Date;
+import java.util.List;
 
 /**
  * @author : xiaohai
@@ -41,14 +42,19 @@ public class Article {
 
     private Date updateDate = null;
 
+    @Deprecated
     private Long categoryId;
 
+    @Deprecated
     private String tagsId;
 
+    @Deprecated
     private Long authorId;
 
+    @Deprecated
     private Long preArticleId;
 
+    @Deprecated
     private Long nextArticleId;
 
     private Long readingNumber;
@@ -58,4 +64,13 @@ public class Article {
      */
     private Boolean open;
 
+    private Category category;
+
+    private List<Tag> tags;
+
+    private Integer likeCount;
+
+    private Integer dislikeCount;
+
+    private User user;
 }

src/main/java/cn/celess/blog/mapper/ArticleMapper.java

@@ -21,10 +21,13 @@ public interface ArticleMapper {
 
     int update(Article a);
 
+    @Deprecated
     int updateNextArticleId(long targetArticleID, long nextArticleID);
 
+    @Deprecated
     int updatePreArticleId(long targetArticleID, long preArticleID);
 
+    @Deprecated
     long getLastestArticleId();
 
     Article getLastestArticle();
@@ -33,7 +36,7 @@ public interface ArticleMapper {
 
     boolean existsByTitle(String title);
 
-    boolean existsById(long id);
+    boolean isDeletedById(long id);
 
     List<Article> findAllByAuthorId(long authorID);
 
@@ -51,8 +54,11 @@ public interface ArticleMapper {
 
     List<Article> getSimpleInfoByTag(List<String> idList);
 
+    @Deprecated
     int setReadingNumber(long number, long id);
 
+    int updateReadingNumber(long id);
+
     long count();
 
 }

src/main/resources/mapper/CategoryMapper.xml

@@ -2,8 +2,8 @@
 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
 <mapper namespace="cn.celess.blog.mapper.CategoryMapper">
     <resultMap id="categoryResultMap" type="cn.celess.blog.entity.Category">
-        <id column="c_id" property="id"/>
+        <id column="t_id" property="id"/>
-        <result column="c_name" property="name"/>
+        <result column="t_name" property="name"/>
     </resultMap>
 
     <insert id="insert">

src/main/resources/mapper/articleMapper.xml

@@ -6,78 +6,91 @@
         <result column="a_title" property="title"/>
         <result column="a_summary" property="summary"/>
         <result column="a_md_content" property="mdContent"/>
-        <result column="a_tags_id" property="tagsId"/>
-        <result column="a_category_id" property="categoryId"/>
         <result column="a_url" property="url"/>
         <result column="a_author_id" property="authorId"/>
         <result column="a_is_open" property="open"/>
         <result column="a_is_original" property="type"/>
-        <result column="next_a_id" property="nextArticleId"/>
+        <!--        <result column="next_a_id" property="nextArticleId"/>-->
-        <result column="pre_a_id" property="preArticleId"/>
+        <!--        <result column="pre_a_id" property="preArticleId"/>-->
         <result column="a_reading_number" property="readingNumber"/>
         <result column="a_publish_date" property="publishDate"/>
         <result column="a_update_date" property="updateDate"/>
+        <association property="category" column="a_category_id" javaType="cn.celess.blog.entity.Category"
+                     resultMap="cn.celess.blog.mapper.CategoryMapper.categoryResultMap">
+        </association>
+        <collection property="tags" ofType="cn.celess.blog.entity.Article"
+                    resultMap="cn.celess.blog.mapper.TagMapper.tagResultMap">
+        </collection>
     </resultMap>
 
-    <insert id="insert" parameterType="cn.celess.blog.entity.Article">
+
-        insert into article (a_author_id, a_category_id, a_tags_id, a_md_content, a_publish_date,
+    <resultMap id="articleViewResultMap" type="cn.celess.blog.entity.Article">
+        <id column="articleId" property="id"/>
+        <result column="title" property="title"/>
+        <result column="summary" property="summary"/>
+        <result column="mdContent" property="mdContent"/>
+        <result column="url" property="url"/>
+        <result column="isOpen" property="open"/>
+        <result column="isOriginal" property="type"/>
+        <result column="likeCount" property="likeCount"/>
+        <result column="dislikeCount" property="dislikeCount"/>
+        <result column="readingCount" property="readingNumber"/>
+        <result column="publishDate" property="publishDate"/>
+        <result column="updateDate" property="updateDate"/>
+        <association property="category" column="categoryId" javaType="cn.celess.blog.entity.Category">
+            <id column="categoryId" property="id"/>
+            <result column="categoryName" property="name"/>
+        </association>
+        <association property="user" column="authorId" javaType="cn.celess.blog.entity.User">
+            <id column="authorId" property="id"/>
+            <result column="userEmail" property="email"/>
+            <result column="userAvatar" property="avatarImgUrl"/>
+            <result column="userDisplayName" property="displayName"/>
+        </association>
+        <collection property="tags" ofType="cn.celess.blog.entity.Tag">
+            <id column="tagId" property="id"/>
+            <result column="tagName" property="name"/>
+        </collection>
+
+    </resultMap>
+
+    <insert id="insert" useGeneratedKeys="true" keyProperty="id" parameterType="cn.celess.blog.entity.Article">
+        insert into article (a_author_id, a_category_id, a_md_content, a_publish_date,
                              a_summary, a_title, a_url)
-        values (#{authorId}, #{categoryId}, #{tagsId}, #{mdContent}, #{publishDate},
+        values (#{user.id}, #{category.id}, #{mdContent}, #{publishDate},
                 #{summary}, #{title}, #{url})
-        <selectKey resultType="java.lang.Long" keyProperty="id">
-            SELECT LAST_INSERT_ID() AS id
-        </selectKey>
     </insert>
-    <delete id="delete">
+    <update id="delete">
-        delete
+        update article
-        from article
+        set is_delete = true
         where a_id = #{id}
-    </delete>
+    </update>
 
     <update id="update">
         update article
-        set
+        set a_update_date=now(),
         <if test="title!=null">a_title=#{title},</if>
         <if test="mdContent!=null">a_md_content=#{mdContent},</if>
         <if test="summary!=null">a_summary=#{summary},</if>
         <if test="type!=null">a_is_original=#{type},</if>
         <if test="url!=null">a_url=#{url},</if>
-        <if test="updateDate!=null">a_update_date=#{updateDate},</if>
+        <if test="category!=null">a_category_id=#{category.id},</if>
-        <if test="categoryId!=null">a_category_id=#{categoryId},</if>
-        <if test="tagsId!=null">a_tags_id=#{tagsId},</if>
-        <if test="nextArticleId!=null">next_a_id=#{nextArticleId},</if>
-        <if test="preArticleId!=null">pre_a_id=#{preArticleId},</if>
         <if test="open!=null">a_is_open=#{open}</if>
         where a_id = #{id}
     </update>
 
-    <update id="updateNextArticleId">
+    <update id="updateReadingNumber">
         update article
-        set next_a_id=#{nextArticleID}
+        set a_reading_number=a_reading_number + 1
-        where a_id = #{targetArticleID}
-    </update>
-
-    <update id="updatePreArticleId">
-        update article
-        set pre_a_id=#{preArticleID}
-        where a_id = #{targetArticleID}
-    </update>
-    <update id="setReadingNumber">
-        update article
-        set a_reading_number=#{number}
         where a_id = #{id}
     </update>
 
-    <select id="getLastestArticleId" resultType="long">
-        select a_id
-        from article
-        order by a_id desc
-        limit 1
-    </select>
-
     <select id="getLastestArticle" resultMap="articleResultMap" resultType="cn.celess.blog.entity.Article">
         select *
-        from article
+        from article,
+             tag_category
+        where tag_category.is_category = true
+          and article.a_category_id = tag_category.t_id
         order by a_id desc
         limit 1
     </select>
@@ -85,16 +98,22 @@
 
     <select id="findArticleById" resultMap="articleResultMap">
         select *
-        from article
+        from article,
+             tag_category
         where a_id = #{id}
+          and tag_category.is_category = true
+          and article.a_category_id = tag_category.t_id
     </select>
 
     <select id="existsByTitle" resultType="boolean">
         SELECT EXISTS(SELECT * FROM article WHERE a_title = #{title})
     </select>
 
-    <select id="existsById" resultType="boolean">
+    <select id="isDeletedById" resultType="boolean">
-        SELECT EXISTS(SELECT * FROM article WHERE a_id = #{id})
+        select is_delete
+        from article
+        WHERE a_id = #{id}
+#         SELECT EXISTS(SELECT * FROM article
     </select>
 
     <select id="findAllByAuthorId" resultMap="articleResultMap">
@@ -125,10 +144,11 @@
         order by a_id desc
     </select>
 
-    <select id="findAll" resultMap="articleResultMap">
+    <select id="findAll" resultMap="articleViewResultMap">
         select *
-        from article
+        from articleView
-        order by a_id desc
+        where isDelete = false
+        order by articleId desc
     </select>
 
     <select id="getSimpleInfo" resultMap="articleResultMap">

src/test/java/cn/celess/blog/mapper/ArticleMapperTest.java

@@ -0,0 +1,134 @@
+package cn.celess.blog.mapper;
+
+import cn.celess.blog.BaseTest;
+import cn.celess.blog.entity.Article;
+import cn.celess.blog.entity.Category;
+import cn.celess.blog.entity.Tag;
+import cn.celess.blog.entity.User;
+import org.junit.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import java.util.List;
+import java.util.UUID;
+
+import static org.junit.Assert.*;
+
+public class ArticleMapperTest extends BaseTest {
+    @Autowired
+    ArticleMapper articleMapper;
+
+    @Test
+    public void insert() {
+
+        Article article = generateArticle();
+
+        articleMapper.insert(article);
+        assertNotNull(article.getId());
+    }
+
+
+    @Test
+    public void delete() {
+        Article article = generateArticle();
+
+        articleMapper.insert(article);
+        assertFalse(articleMapper.isDeletedById(article.getId()));
+        assertEquals(1, articleMapper.delete(article.getId()));
+        assertTrue(articleMapper.isDeletedById(article.getId()));
+    }
+
+    @Test
+    public void update() {
+        Article article = generateArticle();
+        String randomText = UUID.randomUUID().toString();
+
+        // 此字段不会通过insert被写入数据库而是使用插入数据的默认值   数据库中该字段默认为true
+        article.setOpen(true);
+
+        articleMapper.insert(article);
+
+        article.setTitle("test update " + randomText);
+        article.setMdContent("test update ");
+        article.setSummary("test update ");
+        article.setType(false);
+        article.setUrl("https://www.celess.cn");
+        article.getCategory().setId(2L);
+        article.setOpen(!article.getOpen());
+        articleMapper.update(article);
+
+        Article articleById = articleMapper.findArticleById(article.getId());
+        assertEquals(article.getTitle(), articleById.getTitle());
+        assertEquals(article.getMdContent(), articleById.getMdContent());
+        assertEquals(article.getSummary(), articleById.getSummary());
+        assertEquals(article.getType(), articleById.getType());
+        assertEquals(article.getCategory().getId(), articleById.getCategory().getId());
+        assertEquals(article.getOpen(), articleById.getOpen());
+        assertNotNull(articleById.getUpdateDate());
+    }
+
+    @Test
+    public void selectAll() {
+        List<Article> list = articleMapper.findAll();
+        assertNotEquals(0, list.size());
+        list.forEach(article -> {
+            assertNotEquals(0, article.getTags().size());
+            assertNotNull(article.getId());
+            assertNotNull(article.getTitle());
+            assertNotNull(article.getSummary());
+            assertNotNull(article.getMdContent());
+            assertNotNull(article.getType());
+            if (!article.getType()) {
+                assertNotNull(article.getUrl());
+            }
+            assertNotNull(article.getReadingNumber());
+            assertNotNull(article.getLikeCount());
+            assertNotNull(article.getDislikeCount());
+            assertNotNull(article.getPublishDate());
+            assertNotNull(article.getOpen());
+            assertNotNull(article.getCategory());
+            assertNotNull(article.getUser());
+        });
+    }
+
+
+    @Test
+    public void updateReadCount() {
+        Article article = generateArticle();
+        articleMapper.insert(article);
+        Article articleById = articleMapper.findArticleById(article.getId());
+        assertEquals(Long.valueOf(0), articleById.getReadingNumber());
+        articleMapper.updateReadingNumber(articleById.getId());
+        articleById = articleMapper.findArticleById(article.getId());
+        assertEquals(Long.valueOf(1), articleById.getReadingNumber());
+    }
+
+
+    @Test
+    public void getLastestArticle() {
+        Article article = generateArticle();
+        articleMapper.insert(article);
+        Article lastestArticle = articleMapper.getLastestArticle();
+        assertNotNull(lastestArticle);
+        assertEquals(article.getId(), lastestArticle.getId());
+        //        assertNotNull(lastestArticle.getCategory());
+        //        assertNotEquals(0, lastestArticle.getTags().size());
+    }
+
+
+    private Article generateArticle() {
+        String randomText = UUID.randomUUID().toString();
+
+        Article article = new Article();
+        Category category = new Category();
+        category.setId(1L);
+        article.setCategory(category);
+        article.setTitle(" unity test for  article " + randomText);
+        article.setMdContent("# unity test for  article");
+        article.setSummary("unity test for  article");
+        User user = new User();
+        user.setId(1L);
+        article.setUser(user);
+        article.setType(true);
+        return article;
+    }
+}