修改响应的Category的articles字段类型

src/main/java/cn/celess/blog/entity/model/CategoryModel.java

@@ -0,0 +1,43 @@
+package cn.celess.blog.entity.model;
+
+import cn.celess.blog.entity.Category;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * @Author: 小海
+ * @Date: 2020-03-29 12:18
+ * @Desc:
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class CategoryModel {
+    private Long id;
+
+    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));
+            }
+        }
+    }
+}

src/main/java/cn/celess/blog/service/CategoryService.java

@@ -1,6 +1,7 @@
 package cn.celess.blog.service;
 
 import cn.celess.blog.entity.Category;
+import cn.celess.blog.entity.model.CategoryModel;
 import org.springframework.stereotype.Service;
 
 import java.util.List;
@@ -17,7 +18,7 @@ public interface CategoryService {
      * @param name 分类名
      * @return 所增加的分类数据
      */
-    Category create(String name);
+    CategoryModel create(String name);
 
     /**
      * 增加一个分类
@@ -25,7 +26,7 @@ public interface CategoryService {
      * @param category 分类对象
      * @return 所增加的分类数据
      */
-    Category create(Category category);
+    CategoryModel create(Category category);
 
     /**
      * 通过id删除分类
@@ -42,13 +43,13 @@ public interface CategoryService {
      * @param name 分类名字
      * @return 更新后的分类的数据
      */
-    Category update(Long id, String name);
+    CategoryModel update(Long id, String name);
 
     /**
      * 获取全部的分类数据
      *
      * @return 全部的分类数据
      */
-    List<Category> retrievePage();
+    List<CategoryModel> retrievePage();
 
 }

src/main/java/cn/celess/blog/service/serviceimpl/CategoryServiceImpl.java

@@ -3,6 +3,7 @@ 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.exception.MyException;
 import cn.celess.blog.mapper.ArticleMapper;
 import cn.celess.blog.mapper.CategoryMapper;
@@ -11,6 +12,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import javax.servlet.http.HttpServletRequest;
+import java.util.ArrayList;
 import java.util.List;
 
 /**
@@ -27,7 +29,7 @@ public class CategoryServiceImpl implements CategoryService {
     ArticleMapper articleMapper;
 
     @Override
-    public Category create(String name) {
+    public CategoryModel create(String name) {
         if (categoryMapper.existsByName(name)) {
             throw new MyException(ResponseEnum.CATEGORY_HAS_EXIST);
         }
@@ -35,16 +37,16 @@ public class CategoryServiceImpl implements CategoryService {
         category.setName(name);
         category.setArticles("");
         categoryMapper.insert(category);
-        return category;
+        return new CategoryModel(category);
     }
 
     @Override
-    public Category create(Category category) {
+    public CategoryModel create(Category category) {
         if (category == null) {
             throw new MyException(ResponseEnum.PARAMETERS_ERROR);
         }
         categoryMapper.insert(category);
-        return category;
+        return new CategoryModel(category);
     }
 
     @Override
@@ -74,18 +76,20 @@ public class CategoryServiceImpl implements CategoryService {
 
 
     @Override
-    public Category update(Long id, String name) {
+    public CategoryModel update(Long id, String name) {
         if (id == null) {
             throw new MyException(ResponseEnum.PARAMETERS_ERROR.getCode(), "id不可为空");
         }
         Category category = categoryMapper.findCategoryById(id);
         category.setName(name);
         categoryMapper.update(category);
-        return category;
+        return new CategoryModel(category);
     }
 
     @Override
-    public List<Category> retrievePage() {
-        return categoryMapper.findAll();
+    public List<CategoryModel> retrievePage() {
+        List<CategoryModel> list = new ArrayList<>();
+        categoryMapper.findAll().forEach(e -> list.add(new CategoryModel(e)));
+        return list;
     }
 }