diff --git a/src/main/java/cn/celess/blog/controller/CategoryController.java b/src/main/java/cn/celess/blog/controller/CategoryController.java
index c9a7fab..59617ff 100644
--- a/src/main/java/cn/celess/blog/controller/CategoryController.java
+++ b/src/main/java/cn/celess/blog/controller/CategoryController.java
@@ -57,7 +57,8 @@ public class CategoryController {
      * @return Response
      */
     @GetMapping("/categories")
-    public Response getPage() {
-        return ResponseUtil.success(categoryService.retrievePage());
+    public Response getPage(@RequestParam(name = "page", defaultValue = "1") int page,
+                            @RequestParam(name = "count", defaultValue = "1000") int count) {
+        return ResponseUtil.success(categoryService.retrievePage(page, count));
     }
 }
diff --git a/src/main/java/cn/celess/blog/entity/model/CategoryModel.java b/src/main/java/cn/celess/blog/entity/model/CategoryModel.java
index f601030..e99d57c 100644
--- a/src/main/java/cn/celess/blog/entity/model/CategoryModel.java
+++ b/src/main/java/cn/celess/blog/entity/model/CategoryModel.java
@@ -1,12 +1,10 @@
 package cn.celess.blog.entity.model;
 
-import cn.celess.blog.entity.Category;
+import cn.celess.blog.entity.Article;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
-import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.List;
 
 /**
@@ -22,22 +20,5 @@ public class CategoryModel {
 
     private String name;
 
-    private List<Integer> articles;
-
-
-    public CategoryModel(Category category) {
-        this.id = category.getId();
-        this.name = category.getName();
-        if (category.getArticles() == null || category.getArticles().length() == 0) {
-            articles = null;
-        } else {
-            articles = new ArrayList<>();
-            for (String s : category.getArticles().split(",")) {
-                if ("".equals(s)) {
-                    return;
-                }
-                articles.add(Integer.parseInt(s));
-            }
-        }
-    }
+    private List<Article> articles;
 }
diff --git a/src/main/java/cn/celess/blog/service/CategoryService.java b/src/main/java/cn/celess/blog/service/CategoryService.java
index d5e5470..b40da6d 100644
--- a/src/main/java/cn/celess/blog/service/CategoryService.java
+++ b/src/main/java/cn/celess/blog/service/CategoryService.java
@@ -2,6 +2,7 @@ package cn.celess.blog.service;
 
 import cn.celess.blog.entity.Category;
 import cn.celess.blog.entity.model.CategoryModel;
+import cn.celess.blog.entity.model.PageData;
 import org.springframework.stereotype.Service;
 
 import java.util.List;
@@ -20,14 +21,6 @@ public interface CategoryService {
      */
     CategoryModel create(String name);
 
-    /**
-     * 增加一个分类
-     *
-     * @param category 分类对象
-     * @return 所增加的分类数据
-     */
-    CategoryModel create(Category category);
-
     /**
      * 通过id删除分类
      *
@@ -50,6 +43,6 @@ public interface CategoryService {
      *
      * @return 全部的分类数据
      */
-    List<CategoryModel> retrievePage();
+    PageData<CategoryModel> retrievePage(int page, int count);
 
 }
diff --git a/src/main/java/cn/celess/blog/service/serviceimpl/CategoryServiceImpl.java b/src/main/java/cn/celess/blog/service/serviceimpl/CategoryServiceImpl.java
index e76062a..a2236b2 100644
--- a/src/main/java/cn/celess/blog/service/serviceimpl/CategoryServiceImpl.java
+++ b/src/main/java/cn/celess/blog/service/serviceimpl/CategoryServiceImpl.java
@@ -1,13 +1,16 @@
 package cn.celess.blog.service.serviceimpl;
 
 import cn.celess.blog.enmu.ResponseEnum;
-import cn.celess.blog.entity.Article;
 import cn.celess.blog.entity.Category;
 import cn.celess.blog.entity.model.CategoryModel;
+import cn.celess.blog.entity.model.PageData;
 import cn.celess.blog.exception.MyException;
 import cn.celess.blog.mapper.ArticleMapper;
 import cn.celess.blog.mapper.CategoryMapper;
 import cn.celess.blog.service.CategoryService;
+import cn.celess.blog.util.ModalTrans;
+import com.github.pagehelper.PageHelper;
+import com.github.pagehelper.PageInfo;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
@@ -35,46 +38,19 @@ public class CategoryServiceImpl implements CategoryService {
         }
         Category category = new Category();
         category.setName(name);
-        category.setArticles("");
         categoryMapper.insert(category);
-        return new CategoryModel(category);
-    }
-
-    @Override
-    public CategoryModel create(Category category) {
-        if (category == null) {
-            throw new MyException(ResponseEnum.PARAMETERS_ERROR);
-        }
-        categoryMapper.insert(category);
-        return new CategoryModel(category);
+        return ModalTrans.category(category);
     }
 
     @Override
     public boolean delete(long id) {
         Category category = categoryMapper.findCategoryById(id);
-
         if (category == null) {
             throw new MyException(ResponseEnum.CATEGORY_NOT_EXIST);
         }
-        String[] articleArray = category.getArticles().split(",");
-        for (int i = 0; i < articleArray.length; i++) {
-            if (articleArray[i] == null || "".equals(articleArray[i])) {
-                continue;
-            }
-            long articleId = Long.parseLong(articleArray[i]);
-            Article article = articleMapper.findArticleById(articleId);
-            if (article == null) {
-                continue;
-            }
-            article.setCategoryId(-1L);
-            //一个 文章只对应一个分类，分类不存在则文章默认不可见
-            article.setOpen(false);
-            articleMapper.update(article);
-        }
         return categoryMapper.delete(id) == 1;
     }
 
-
     @Override
     public CategoryModel update(Long id, String name) {
         if (id == null) {
@@ -83,13 +59,15 @@ public class CategoryServiceImpl implements CategoryService {
         Category category = categoryMapper.findCategoryById(id);
         category.setName(name);
         categoryMapper.update(category);
-        return new CategoryModel(category);
+        return ModalTrans.category(category);
     }
 
     @Override
-    public List<CategoryModel> retrievePage() {
-        List<CategoryModel> list = new ArrayList<>();
-        categoryMapper.findAll().forEach(e -> list.add(new CategoryModel(e)));
-        return list;
+    public PageData<CategoryModel> retrievePage(int page, int count) {
+        PageHelper.startPage(page, count);
+        List<Category> all = categoryMapper.findAll();
+        List<CategoryModel> modelList = new ArrayList<>();
+        all.forEach(e -> modelList.add(ModalTrans.category(e)));
+        return new PageData<CategoryModel>(new PageInfo<Category>(all), modelList);
     }
 }
diff --git a/src/main/resources/mapper/CategoryMapper.xml b/src/main/resources/mapper/CategoryMapper.xml
index 21363ea..b22ba44 100644
--- a/src/main/resources/mapper/CategoryMapper.xml
+++ b/src/main/resources/mapper/CategoryMapper.xml
@@ -17,47 +17,47 @@
         update tag_category
         set t_name=#{name}
         where t_id = #{id}
-          and is_category = true;
+          and is_category = true
     </update>
 
     <update id="delete">
         update tag_category
         set is_delete= true
         where t_id = #{id}
-          and is_category = true;
+          and is_category = true
     </update>
 
     <select id="findCategoryByName" resultMap="categoryResultMap">
         select *
         from tag_category
         where t_name = #{name}
-          and is_category = true;
+          and is_category = true
     </select>
 
     <select id="findCategoryById" resultMap="categoryResultMap">
         select *
         from tag_category
         where t_id = #{id}
-          and is_category = true;
+          and is_category = true
     </select>
 
     <select id="findAll" resultMap="categoryResultMap">
         select *
         from tag_category
-        where is_category = true;
+        where is_category = true
     </select>
 
     <select id="getAllName" resultType="java.lang.String">
         select t_name
         from tag_category
-        where is_category = true;
+        where is_category = true
     </select>
 
     <select id="getNameById" resultType="java.lang.String">
         select t_name
         from tag_category
         where is_category = true
-          and t_id = #{id};
+          and t_id = #{id}
     </select>
 
     <select id="getIdByName" resultType="java.lang.Long">
diff --git a/src/test/java/cn/celess/blog/controller/CategoryControllerTest.java b/src/test/java/cn/celess/blog/controller/CategoryControllerTest.java
index 5c1d040..1615756 100644
--- a/src/test/java/cn/celess/blog/controller/CategoryControllerTest.java
+++ b/src/test/java/cn/celess/blog/controller/CategoryControllerTest.java
@@ -23,7 +23,7 @@ public class CategoryControllerTest extends BaseTest {
 
     @Test
     public void addOne() throws Exception {
-        String categoryName = UUID.randomUUID().toString().substring(0, 4);
+        String categoryName = randomStr(4);
         System.out.println("categoryName: ==> " + categoryName);
         // 未登录
         mockMvc.perform(post("/admin/category/create?name=" + categoryName)).andExpect(status().isOk())
@@ -84,7 +84,7 @@ public class CategoryControllerTest extends BaseTest {
     @Test
     public void updateOne() throws Exception {
         Category category = categoryMapper.getLastestCategory();
-        String name = UUID.randomUUID().toString().substring(0, 4);
+        String name = randomStr(4);
         // 未登录
         mockMvc.perform(put("/admin/category/update?id=" + category.getId() + "&name=" + name)).andExpect(status().isOk())
                 .andDo(result -> {
@@ -119,7 +119,7 @@ public class CategoryControllerTest extends BaseTest {
                 .andDo(result -> {
                     JSONObject object = JSONObject.fromObject(result.getResponse().getContentAsString());
                     assertEquals(SUCCESS.getCode(), object.getInt(Code));
-                    JSONArray jsonArray = object.getJSONArray(Result);
+                    JSONArray jsonArray = object.getJSONObject(Result).getJSONArray("list");
                     assertNotNull(jsonArray);
                     jsonArray.forEach(o -> {
                         CategoryModel c = (CategoryModel) JSONObject.toBean(JSONObject.fromObject(o), CategoryModel.class);