修复分类，文章级联删除，部分页面展示

pom.xml

@@ -4,8 +4,8 @@
          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>cn.kevinlu98</groupId>
-    <artifactId>blog-project</artifactId>
+    <groupId>cc.bnblogs</groupId>
+    <artifactId>SpringBootProject</artifactId>
     <version>1.0-SNAPSHOT</version>
 
     <parent>
@@ -105,6 +105,34 @@
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-resources-plugin</artifactId>
+                <version>3.2.0</version>
+                <executions>
+                    <execution>
+                        <id>copy-resources</id>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>copy-resources</goal>
+                        </goals>
+                        <configuration>
+                            <resources>
+                                <resource>
+                                    <directory>src/main/resources</directory>
+                                    <includes>
+                                        <include>*.properties</include>
+                                        <include>*.yml</include>
+                                        <include>*/*.properties</include>
+                                        <include>*/*.yml</include>
+                                    </includes>
+                                </resource>
+                            </resources>
+                            <outputDirectory>${project.build.directory}</outputDirectory>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
         </plugins>
     </build>
 

src/main/java/cc/bnblogs/common/DefaultImages.java

@@ -1,6 +1,8 @@
 package cc.bnblogs.common;
 
+import cc.bnblogs.config.WebConfig;
 import lombok.Data;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.stereotype.Component;
 import org.thymeleaf.util.StringUtils;
@@ -25,6 +27,11 @@ public class DefaultImages {
      * 默认评论头像
      */
     private List<String> avatars;
+    private final WebSite webSite;
+
+    public DefaultImages(WebSite webSite) {
+        this.webSite = webSite;
+    }
 
     public String cover(String imgUrl) {
         if (StringUtils.isEmptyOrWhitespace(imgUrl)) {

src/main/java/cc/bnblogs/controller/ArticleController.java

@@ -6,6 +6,7 @@ import cc.bnblogs.common.Result;
 import cc.bnblogs.enums.ResultEnum;
 import cc.bnblogs.pojo.Article;
 import cc.bnblogs.service.ArticleService;
+import cc.bnblogs.service.CommentService;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
@@ -19,9 +20,11 @@ import java.util.Objects;
 @RequestMapping("/admin/article")
 public class ArticleController {
     private final ArticleService articleService;
+    private final CommentService commentService;
 
-    public ArticleController(ArticleService articleService) {
+    public ArticleController(ArticleService articleService, CommentService commentService) {
         this.articleService = articleService;
+        this.commentService = commentService;
     }
 
     /**
@@ -61,12 +64,18 @@ public class ArticleController {
     }
 
     /**
-     * 删除一个文章
+     * 删除一篇文章
      * @param id 删除的文章id
      * @return 删除结果
      */
     @DeleteMapping("/{id}")
     public Result<String> delete(@PathVariable Integer id) {
+        // 删除文章前验证该文章中是否有评论
+        Long number = commentService.countCommentByArticleId(id);
+        if ( number != 0) {
+            // 先删除文章下的所有评论
+            commentService.deleteCommentByArticleId(id);
+        }
         articleService.delete(id);
         return Result.success();
     }

src/main/java/cc/bnblogs/controller/CategoryController.java

@@ -3,6 +3,7 @@ package cc.bnblogs.controller;
 import cc.bnblogs.common.Result;
 import cc.bnblogs.enums.ResultEnum;
 import cc.bnblogs.pojo.Category;
+import cc.bnblogs.service.ArticleService;
 import cc.bnblogs.service.CategoryService;
 import org.springframework.web.bind.annotation.*;
 
@@ -17,9 +18,11 @@ import java.util.Objects;
 @RequestMapping("/admin/category")
 public class CategoryController {
     private final CategoryService categoryService;
+    private final ArticleService articleService;
 
-    public CategoryController(CategoryService categoryService) {
+    public CategoryController(CategoryService categoryService, ArticleService articleService) {
         this.categoryService = categoryService;
+        this.articleService = articleService;
     }
 
     /**
@@ -64,7 +67,19 @@ public class CategoryController {
      */
     @DeleteMapping("/{id}")
     public Result<String> delete(@PathVariable Integer id) {
-        categoryService.delete(id);
+        // 查询分类下的文章数
+        long number = articleService.countByCategoryId(id);
+        if (number == 0) {
+            // 没有文章使用了该分类直接删除
+            categoryService.delete(id);
+        }else {
+            System.out.println("使用该分类的文章数:" + number);
+            // 插入一个默认分类(已存在则忽略)
+            categoryService.insertDefaultValue();
+            // 更新该分类下的所有文章为默认分类
+            articleService.updateToDefaultCategory(id);
+            categoryService.delete(id);
+        }
         return Result.success();
     }
 }

src/main/java/cc/bnblogs/controller/CommentController.java

@@ -7,12 +7,8 @@ import cc.bnblogs.enums.ResultEnum;
 import cc.bnblogs.pojo.Article;
 import cc.bnblogs.pojo.Comment;
 import cc.bnblogs.service.CommentService;
-import org.springframework.data.domain.PageRequest;
-import org.springframework.data.domain.Pageable;
-import org.springframework.data.domain.Sort;
 import org.springframework.web.bind.annotation.*;
 
-import java.util.List;
 import java.util.Objects;
 
 /**

src/main/java/cc/bnblogs/mapper/ArticleMapper.java

@@ -25,7 +25,8 @@ public interface ArticleMapper extends JpaRepository<Article,Integer>, JpaSpecif
     List<Article> hotList(int limit);
 
     /**
-     * 统计分类文章数
+     * 统计该分类文章数
+     * todo 应该减去页面数
      * @param category 分类
      * @return 文章个数
      */
@@ -47,4 +48,18 @@ public interface ArticleMapper extends JpaRepository<Article,Integer>, JpaSpecif
     @Modifying
     @Query(value = "update blog_article set views=views+1 where id=?1",nativeQuery = true)
     void updateArticleViews(Integer id);
+
+    /**
+     * 删除某个分类时如果有文章使用了该分类
+     * 更新文章的分类id为默认分类的id
+     * @param articleCategoryId 文章分类id
+     */
+    @Modifying
+    @Transactional(rollbackFor = {Exception.class})
+    @Query(value = "update blog_article ba, blog_category bc\n" +
+            "set ba.category_id = bc.id\n" +
+            "where bc.name='默认分类' and ba.category_id=?1", nativeQuery = true)
+    void updateToDefaultCategory(Integer articleCategoryId);
+
+
 }

src/main/java/cc/bnblogs/mapper/CategoryMapper.java

@@ -2,10 +2,25 @@ package cc.bnblogs.mapper;
 
 import cc.bnblogs.pojo.Category;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
 
 /**
  * @author zfp@bnblogs.cc
  * @createTime: 2022/10/16
  */
-public interface CategoryMapper extends JpaRepository<Category,Integer> {
+public interface CategoryMapper extends JpaRepository<Category,Integer>, JpaSpecificationExecutor<Category> {
+
+    /**
+     * 插入一个默认分类
+     * 如果已存在则忽略
+     */
+    @Modifying
+    @Transactional(rollbackFor = {Exception.class})
+    @Query(value = "insert ignore blog_category(`name`,`summary`) values('默认分类','未设置分类')",nativeQuery = true)
+    void insertDefaultCategory();
 }

src/main/java/cc/bnblogs/mapper/CommentMapper.java

@@ -61,4 +61,24 @@ public interface CommentMapper extends JpaRepository<Comment,Integer> {
      * @return 评论个数
      */
     Long countCommentByView(Boolean view);
+
+    /**
+     * 统计该文章下有多少评论
+     * @param article_id 文章id
+     * @return
+     */
+    Long countCommentByArticleId(Integer article_id);
+
+    /**
+     * 根据文章id删除该文章下所有文章
+     *
+     */
+
+    /**
+     * 根据文章id删除其所有评论
+     * @param id 文章id
+     */
+    @Modifying
+    @Transactional(rollbackFor = {Exception.class})
+    void deleteCommentsByArticleId(Integer id);
 }

src/main/java/cc/bnblogs/service/ArticleService.java

@@ -3,6 +3,7 @@ package cc.bnblogs.service;
 import cc.bnblogs.common.ArticleSearch;
 import cc.bnblogs.common.PageHelper;
 import cc.bnblogs.mapper.ArticleMapper;
+import cc.bnblogs.mapper.CategoryMapper;
 import cc.bnblogs.mapper.CommentMapper;
 import cc.bnblogs.mapper.TagMapper;
 import cc.bnblogs.pojo.Article;
@@ -42,11 +43,13 @@ public class ArticleService {
     private final TagMapper tagMapper;
     private final ArticleMapper articleMapper;
     private final CommentMapper commentMapper;
+    private final CategoryMapper categoryMapper;
 
-    public ArticleService(ArticleMapper articleMapper, TagMapper tagMapper, CommentMapper commentMapper) {
+    public ArticleService(ArticleMapper articleMapper, TagMapper tagMapper, CommentMapper commentMapper, CategoryMapper categoryMapper) {
         this.articleMapper = articleMapper;
         this.tagMapper = tagMapper;
         this.commentMapper = commentMapper;
+        this.categoryMapper = categoryMapper;
     }
 
     /**
@@ -64,6 +67,14 @@ public class ArticleService {
     public long count() {
         return articleMapper.count();
     }
+    /**
+     * 获取该分类下的文章数
+     * @param id 分类id
+     * @return 文章数
+     */
+    public long countByCategoryId(Integer id){
+        return articleMapper.countByCategory(categoryMapper.getOne(id));
+    }
 
     /**
      * 根据id查询文章对象
@@ -212,4 +223,8 @@ public class ArticleService {
         articleMapper.updateArticleViews(id);
     }
 
+    public void updateToDefaultCategory(Integer articleCategoryId){
+        articleMapper.updateToDefaultCategory(articleCategoryId);
+    }
+
 }

src/main/java/cc/bnblogs/service/CategoryService.java

@@ -81,6 +81,14 @@ public class CategoryService {
             // 返回该分类下的文章总数
             category.setArticleCount(articleMapper.countByCategory(category));
             category.setLastUpdated(articleMapper.lastUpdated(category.getId()));
-        }).filter(category -> category.getArticleCount() > 0).collect(Collectors.toList());
+        }).filter(category -> category.getArticleCount() > 0)
+                .collect(Collectors.toList());
+    }
+
+    /**
+     * 插入一条默认分类，有则忽略
+     */
+    public void insertDefaultValue() {
+        categoryMapper.insertDefaultCategory();
     }
 }

src/main/java/cc/bnblogs/service/CommentService.java

@@ -185,4 +185,21 @@ public class CommentService {
                         .total(page.getTotalElements())
                         .build();
     }
+
+    /**
+     * 返回该id对应的文章的评论个数
+     * @param id 文章id
+     * @return 评论个数
+     */
+    public Long countCommentByArticleId(Integer id) {
+        return commentMapper.countCommentByArticleId(id);
+    }
+
+    /**
+     * 根据文章id删除所有评论
+     * @param id 文章id
+     */
+    public void deleteCommentByArticleId(Integer id) {
+        commentMapper.deleteCommentsByArticleId(id);
+    }
 }

src/main/java/cc/bnblogs/utils/CookieUtil.java

@@ -31,8 +31,8 @@ public class CookieUtil {
     }
 
     public static void setCookie(HttpServletResponse response, String cookieName, String value) {
-        // 有效期为1天
-        setCookie(response, cookieName, value,  24 * 60 * 60);
+        // 有效期为1小时
+        setCookie(response, cookieName, value,   60 * 60);
     }
 
     public static void deleteCookie(HttpServletResponse response, String cookieName) {

src/main/resources/application.yml

@@ -1,3 +1,4 @@
+
 spring:
   jackson:
     date-format: yyyy-MM-dd HH:mm:ss
@@ -70,12 +71,13 @@ website:
     - SpringBoot
     - 学习
   description: All the truth is simple!
-  domain: http://localhost:8080 #域名
+  domain: http://localhost:8081 #域名
   avatar: https://hugo.bnblogs.cc/images/img/20220215001349.png
   nickname: barney
   username: admin
   password: 0192023a7bbd73250516f069df18b500
   address: 广东 广州
+  # 作者头像
   tags:
     - java
     - springboot
@@ -113,4 +115,5 @@ default-images:
     - /static/image/avatar/12.jpg
     - /static/image/avatar/13.jpg
     - /static/image/avatar/14.jpg
-
+server:
+  port: 8081 # 程序启动端口

src/main/resources/static/css/style.css

@@ -57,7 +57,6 @@ nav .lw-container.lw-header {
 }
 
 nav .lw-container.lw-header span {
-    text-shadow: 0 0 2px #c2005f, 0 0 4px #c2005f, 0 0 4px #c2005f, 0 0 4px #c2005f;
     font-size: 16px;
     color: #eee;
 }
@@ -262,7 +261,7 @@ nav .lw-nav a i {
 .lw-left-list {
     margin-right: 310px;
     padding: 0;
-    min-height: 1300px;
+    min-height: 767px;
 }
 
 .lw-left-list .lw-swiper {

src/main/resources/templates/admin/category.html

@@ -75,9 +75,9 @@
                     title: '操作',
                     align: "center",
                     width: 180,
-                    formatter: function (value) {
+                    formatter: function (value,row) {
                         return `<button type="button" style="outline: none;" data-id="${value}" class="btn btn-info btn-sm category-edit-btn"><i class="fa fa-edit"></i> 编辑</button>
-                                <button type="button" style="outline: none;" data-id="${value}" class="btn btn-danger btn-sm category-delete-btn"><i class="fa fa-trash"></i> 删除</button>`
+                                <button type="button" data-name="${row.name}" style="outline: none;" data-id="${value}" class="btn btn-danger btn-sm category-delete-btn"><i class="fa fa-trash"></i> 删除</button>`
                     }
                 }
             ],
@@ -118,9 +118,14 @@
         // 删除分类
         $("#data-table").on("click",".category-delete-btn",function () {
             let id = $(this).data('id')
+            let name = $(this).data('name')
             let idx = layer.confirm('是否要删除该数据？', {
                 btn: ['确认', '取消'] //按钮
             }, function () { // 点击确认后删除
+                if (name === '默认分类') {
+                    layer.msg('默认分类不能删除!', {icon: 2});
+                    return;
+                }
                 $.ajax({
                     url: '/admin/category/' + id,
                     method: 'delete',

src/main/resources/templates/admin/comment.html

@@ -5,7 +5,14 @@
     <title>评论管理</title>
     <style>
         #comment-content {
-            width: 400px;
+            width: 200px;
+            overflow: hidden;
+            white-space: nowrap;
+            text-overflow: ellipsis;
+        }
+
+        #comment-article {
+            width: 200px;
             overflow: hidden;
             white-space: nowrap;
             text-overflow: ellipsis;
@@ -127,8 +134,13 @@
                     formatter: value => {
                         return value ? "已读" : "未读";
                     }
+                },{
+                    title: '文章',
+                    field: 'article',
+                    formatter: function (value) {
+                        return  `<a target="_blank"  href="/${value.id}.html"><p id="comment-article">${value.title}</p></a>`
+                    }
                 },
-
                 {
                     title: "评论创建时间",
                     field: "created",

src/main/resources/templates/admin/index.html

@@ -18,7 +18,8 @@
         <div class="col-md-6">
             <ul class="list-group">
                 <li class="list-group-item disabled">
-                    <b>最新文章</b>
+                    <b th:if="${ArticleCount > 0}">最新文章</b>
+                    <b th:if="${ArticleCount eq 0}">未发布任何文章</b>
                 </li>
                 <li class="list-group-item" th:each="article:${NewArticleList}">
                     <span class="badge" th:text="${#dates.format(article.created,'yyyy-MM-dd HH:mm')}"></span>
@@ -29,7 +30,8 @@
         <div class="col-md-6">
             <ul class="list-group">
                 <li class="list-group-item disabled">
-                    <b>最新评论</b>
+                    <b th:if="${CommentAll > 0}">最新评论</b>
+                    <b th:if="${CommentAll eq 0}">未发布任何评论</b>
                 </li>
                 <li class="list-group-item" th:each="comment:${NewCommentList}">
                     <span class="badge" th:text="${#dates.format(comment.created,'yyyy-MM-dd HH:mm')}"></span>

src/main/resources/templates/category.html

@@ -15,6 +15,7 @@
       <li class="active">分类云</li>
     </ol>
     <ul class="lw-category-list">
+      <div th:if="${categories.size() == 0}" class="lw-tag-list" style="height: 200px; line-height: 200px; text-align: center;font-size: 25px; font-weight: bold; color: red;">未找到任何分类!</div>
       <li th:each="category:${categories}">
         <a th:href="@{/category/{id}.html(id=${category.id})}">
           <i class="fa fa-folder lw-mr5"></i><th:block th:text="${category.name}"></th:block>
@@ -51,6 +52,7 @@
       </div>
       <div class="lw-right-item lw-right-hot">
         <h4><i class="fa fa-fire lw-mr5" aria-hidden="true"></i>热门文章</h4>
+        <ul class="lw-right-item" style="font-size: 20px;padding-left: 5px" th:if="${hots.size()==0}">没有任何文章</ul>
         <ul class="lw-hot-list">
           <!--/*@thymesVar id="hots" type="java.util.List<cc.bnblogs.pojo.Article>"*/-->
           <li th:each="hot,it:${hots}">
@@ -72,6 +74,7 @@
       </div>
       <div class="lw-right-item lw-tag-cloud">
         <h4><i class="fa fa-tags lw-mr5" aria-hidden="true"></i>标签云</h4>
+        <ul class="lw-right-item" style="font-size: 20px;padding-left: 5px" th:if="${tags.size()==0}">没有任何标签</ul>
         <!--/*@thymesVar id="tags" type="java.util.List<cc.bnblogs.pojo.Tag>"*/-->
         <a th:each="tag:${tags}" th:href="@{/tag/{id}.html(id=${tag.id})}" th:title="${tag.name}" th:text="${tag.name}"></a>
       </div>
@@ -82,7 +85,7 @@
 <th:block th:fragment="footer">
   <div class="lw-friend-link">
     <div class="lw-container">
-      <h2>友情链接</h2>
+      <h2 th:if="${friends.size()>0}">友情链接</h2>
       <!--/*@thymesVar id="friends" type="java.util.List<cc.bnblogs.pojo.Friends>"*/-->
       <a th:each="friend:${friends}" target="_blank" th:href="${friend.link}" th:text="${friend.title}"></a>
     </div>

src/main/resources/templates/common.html

@@ -28,7 +28,8 @@
                     >
                 </a>
             </div>
-            <span th:text="${@webSite.getNavDesc()}" style="font-size: 20px;text-shadow:none;color: rgb(22, 18, 9)"></span>
+            <a th:href="@{/}" title="返回首页" th:text="${@webSite.title}"  style="text-decoration: none;padding-left: 16px; float: left;color: #c2005f;font-size: 3rem"></a>
+            <span style="padding-bottom: 40px">&nbsp;</span>
             <div class="lw-fr lw-linkme">
                 <a target="_blank"
                    th:href="${T(java.lang.String).format('tencent://message/?uin=%s&amp;Site=&amp;menu=yes',@webSite.qq)}"><i
@@ -83,6 +84,7 @@
     </div>
     <div class="lw-right-item lw-right-hot">
         <h4><i class="fa fa-fire lw-mr5" aria-hidden="true"></i>热门文章</h4>
+        <ul class="lw-right-item" style="font-size: 20px;padding-left: 5px" th:if="${hots.size()==0}">没有热门文章</ul>
         <ul class="lw-hot-list">
             <!--/*@thymesVar id="hots" type="java.util.List<cc.bnblogs.pojo.Article>"*/-->
             <li th:each="hot,it:${hots}">
@@ -105,12 +107,14 @@
     </div>
     <div class="lw-right-item lw-tag-cloud">
         <h4><i class="fa fa-tags lw-mr5" aria-hidden="true"></i>标签云</h4>
+        <ul class="lw-right-item" style="font-size: 20px;padding-left: 5px" th:if="${tags.size()==0}">没有任何标签</ul>
         <!--/*@thymesVar id="tags" type="java.util.List<cc.bnblogs.pojo.Tag>"*/-->
         <a th:each="tag:${tags}" th:href="@{/tag/{id}.html(id=${tag.id})}" th:title="${tag.name}"
            th:text="${tag.name}"></a>
     </div>
 </th:block>
 
+
 <th:block th:fragment="article(articleList)">
     <article th:each="article:${articleList}" class="lw-article-item lw-posr">
         <div class="lw-article-cover lw-posa lw-xs-hidden">
@@ -136,13 +140,12 @@
                     <a th:each="tag:${article.tags}" th:href="@{/tag/{id}.html(id=${tag.id})}" class="lw-mr5"
                        th:title="${tag.name}" th:text="${tag.name +' '}"></a>
                 </th:block>
-
             </p>
         </div>
     </article>
 </th:block>
 <th:block th:fragment="footer">
-    <div class="lw-friend-link">
+    <div class="lw-friend-link" style="margin-top: 50px">
         <div class="lw-container">
             <h2>友情链接</h2>
             <!--/*@thymesVar id="friends" type="java.util.List<cc.bnblogs.pojo.Friends>"*/-->

src/main/resources/templates/detail.html

@@ -140,13 +140,16 @@
             </div>
 
             <div style="margin-top: 20px"></div>
-            <h2 id="comment-number" style="text-align: center;margin-bottom: 10px">评论 (
+            <h2 th:if="${article.allowComment eq T(cc.bnblogs.pojo.Article).COMMENT_ENABLE}" id="comment-number" style="text-align: center;margin-bottom: 10px">评论 (
                 共<th:block th:text="${article.getCommentCount() > 0 ? article.getCommentCount() : 0}"></th:block>条
                 )
             </h2>
 
-            <div class="lw-comment-box row lw-m0">
+            <div th:if="${article.allowComment eq T(cc.bnblogs.pojo.Article).COMMENT_DISABLE}" style="padding: 15px; color: red; font-size: 18px; background-color: #fff;text-align: center">
+                <p>对不起，此页面站长设置了不允许评论</p>
+            </div>
 
+            <div th:if="${article.allowComment eq T(cc.bnblogs.pojo.Article).COMMENT_ENABLE}" class="lw-comment-box row lw-m0">
                 <form id="lw-comment-form">
                     <input type="hidden" id="article-id" name="article.id" th:value="${article.id}">
                     <input type="hidden" name="pid" value="0">
@@ -174,7 +177,7 @@
             </div>
         </div>
 
-        <div id="comment-list">
+        <div id="comment-list" th:if="${article.allowComment eq T(cc.bnblogs.pojo.Article).COMMENT_ENABLE}">
             <th:block th:fragment="comments">
             <div class="lw-comment-list">
                 <ul>
@@ -297,7 +300,7 @@
 
     <div class="lw-friend-link">
         <div class="lw-container">
-            <h2>友情链接</h2>
+            <h2 th:if="${friends.size()>0}">友情链接</h2>
             <!--/*@thymesVar id="friends" type="java.util.List<cc.bnblogs.pojo.Friends>"*/-->
             <a th:each="friend:${friends}" target="_blank" th:href="${friend.link}" th:text="${friend.title}"></a>
         </div>

src/main/resources/templates/index.html

@@ -40,7 +40,7 @@
 
 <div class="lw-container lw-main lw-posr">
     <div class="lw-left-list">
-        <div class="swiper mySwiper lw-swiper">
+        <div class="swiper mySwiper lw-swiper" th:if="${banners.size() > 0}">
             <div class="swiper-wrapper">
                 <div class="swiper-slide lw-posr" th:each="banner:${banners}">
                     <img th:src="${banner.cover}" th:alt="${banner.title}" srcset="">
@@ -60,6 +60,7 @@
         </div>
         <div class="lw-article-list">
             <th:block th:include="common::article(${articlePage.rows})"></th:block>
+            <div class="lw-tag-list" th:if="${articlePage.rows.size() == 0}" style="font-size: 25px;height: 300px;line-height: 300px;color: red;font-weight: bold;text-align: center" th:text="没有找到任何文章"></div>
         </div>
         <ul th:if="${articlePage.totalPages >1}" class="lw-pagenation">
             <li th:if="${articlePage.currentPage != 1}"><a th:href="@{/}">首页</a></li>
@@ -81,7 +82,7 @@
 <th:block th:fragment="footer">
     <div class="lw-friend-link">
         <div class="lw-container">
-            <h2>友情链接</h2>
+            <h2 th:if="${friends.size() != 0}">友情链接</h2>
             <!--/*@thymesVar id="friends" type="java.util.List<cc.bnblogs.pojo.Friends>"*/-->
             <a th:each="friend:${friends}" target="_blank" th:href="${friend.link}" th:text="${friend.title}"></a>
         </div>

src/main/resources/templates/list.html

@@ -120,7 +120,7 @@
 <th:block th:fragment="footer">
     <div class="lw-friend-link">
         <div class="lw-container">
-            <h2>友情链接</h2>
+            <h2 th:if="${friends.size()>0}">友情链接</h2>
             <!--/*@thymesVar id="friends" type="java.util.List<cc.bnblogs.pojo.Friends>"*/-->
             <a th:each="friend:${friends}" target="_blank" th:href="${friend.link}" th:text="${friend.title}"></a>
         </div>

src/main/resources/templates/tags.html

@@ -14,6 +14,7 @@
             <li class="active">标签云</li>
         </ol>
         <div class="lw-tag-list">
+            <div th:if="${tags.size() == 0}" style="height: 200px; line-height: 200px; text-align: center;font-size: 25px; font-weight: bold; color: red;">未找到标签!</div>
             <a th:each="tag:${tagList}" th:title="${tag.name}" th:href="@{/tag/{id}.html(id=${tag.getId()})}">
                 <th:block th:text="${tag.name}"></th:block>
                 <span><th:block th:text="${tag.getArticleCount()}"></th:block></span></a>
@@ -42,6 +43,7 @@
             </div>
             <div class="lw-right-item lw-right-hot">
                 <h4><i class="fa fa-fire lw-mr5" aria-hidden="true"></i>热门文章</h4>
+                <ul class="lw-right-item" style="font-size: 20px;padding-left: 5px" th:if="${hots.size()==0}">没有任何文章</ul>
                 <ul class="lw-hot-list">
                     <!--/*@thymesVar id="hots" type="java.util.List<cc.bnblogs.pojo.Article>"*/-->
                     <li th:each="hot,it:${hots}">
@@ -64,9 +66,11 @@
             </div>
             <div class="lw-right-item lw-tag-cloud">
                 <h4><i class="fa fa-tags lw-mr5" aria-hidden="true"></i>标签云</h4>
+                <ul class="lw-right-item" style="font-size: 20px;padding-left: 5px" th:if="${tags.size()==0}">没有任何标签</ul>
                 <!--/*@thymesVar id="tags" type="java.util.List<cc.bnblogs.pojo.Tag>"*/-->
                 <a th:each="tag:${tags}" th:href="@{/tag/{id}.html(id=${tag.id})}" th:title="${tag.name}"
                    th:text="${tag.name}"></a>
+
             </div>
         </th:block>
     </div>
@@ -75,7 +79,7 @@
 <th:block th:fragment="footer">
     <div class="lw-friend-link">
         <div class="lw-container">
-            <h2>友情链接</h2>
+            <h2 th:if="${friends.size()>0}">友情链接</h2>
             <!--/*@thymesVar id="friends" type="java.util.List<cc.bnblogs.pojo.Friends>"*/-->
             <a th:each="friend:${friends}" target="_blank" th:href="${friend.link}" th:text="${friend.title}"></a>
         </div>