代码INIT

src/main/java/com/quinn/controller/BlogController.java

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+package com.quinn.controller;
+
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.quinn.pojo.Blog;
+import com.quinn.pojo.BlogCategory;
+import com.quinn.pojo.Comment;
+import com.quinn.service.BlogCategoryService;
+import com.quinn.service.BlogService;
+import com.quinn.service.CommentService;
+import com.quinn.utils.QuinnUtils;
+import com.quinn.vo.QuestionWriteForm;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * <p>
+ *  前端控制器
+ * </p>
+ *
+ * @author 遇见狂神说
+ * @since 2020-06-29
+ */
+@Controller
+public class BlogController {
+
+    @Autowired
+    BlogCategoryService blogCategoryService;
+    @Autowired
+    BlogService blogService;
+    @Autowired
+    CommentService commentService;
+
+    // 列表展示
+    @GetMapping("/blog")
+    public String blogList(Model model){
+
+        Page<Blog> pageParam = new Page<>(1, 10);
+        blogService.page(pageParam,new QueryWrapper<Blog>().orderByDesc("gmt_create"));
+        // 结果
+        List<Blog> blogList = pageParam.getRecords();
+        model.addAttribute("blogList",blogList);
+        model.addAttribute("pageParam",pageParam);
+
+        // 分类信息
+        List<BlogCategory> categoryList = blogCategoryService.list(null);
+        model.addAttribute("categoryList",categoryList);
+
+        return "blog/list";
+    }
+
+    @GetMapping("/blog/{page}/{limit}")
+    public String blogListPage(
+            @PathVariable int page,
+            @PathVariable int limit,
+            Model model){
+
+        if (page < 1){
+            page = 1;
+        }
+        Page<Blog> pageParam = new Page<>(page, limit);
+        blogService.page(pageParam,new QueryWrapper<Blog>().orderByDesc("gmt_create"));
+
+        // 结果
+        List<Blog> blogList = pageParam.getRecords();
+        model.addAttribute("blogList",blogList);
+        model.addAttribute("pageParam",pageParam);
+
+        // 分类信息
+        List<BlogCategory> categoryList = blogCategoryService.list(null);
+        model.addAttribute("categoryList",categoryList);
+
+        return "blog/list";
+    }
+
+    // 写文章
+    @GetMapping("/blog/write")
+    public String toWrite(Model model){
+        List<BlogCategory> categoryList = blogCategoryService.list(null);
+        model.addAttribute("categoryList",categoryList);
+        return "blog/write";
+    }
+
+    @PostMapping("/blog/write")
+    public synchronized String write(QuestionWriteForm questionWriteForm){
+        // 构建问题对象
+        Blog blog = new Blog();
+
+        blog.setBid(QuinnUtils.getUuid());
+        blog.setTitle(questionWriteForm.getTitle());
+        blog.setContent(questionWriteForm.getContent());
+        blog.setSort(0);
+        blog.setViews(0);
+
+        blog.setAuthorId(questionWriteForm.getAuthorId());
+        blog.setAuthorName(questionWriteForm.getAuthorName());
+        blog.setAuthorAvatar(questionWriteForm.getAuthorAvatar());
+
+        BlogCategory category = blogCategoryService.getById(questionWriteForm.getCategoryId());
+        blog.setCategoryId(questionWriteForm.getCategoryId());
+        blog.setCategoryName(category.getCategory());
+        blog.setGmtCreate(QuinnUtils.getTime());
+        blog.setGmtUpdate(QuinnUtils.getTime());
+        // 存储对象
+        blogService.save(blog);
+
+        // 重定向到列表页面
+        return "redirect:/blog";
+    }
+
+    // 阅读文章
+    @GetMapping("/blog/read/{bid}")
+    public String read(@PathVariable("bid") String bid,Model model){
+        Blog blog = blogService.getOne(new QueryWrapper<Blog>().eq("bid", bid));
+        // todo: redis缓存. 防止阅读重复
+        blog.setViews(blog.getViews()+1);
+        blogService.updateById(blog);
+        model.addAttribute("blog",blog);
+        // todo： 查询评论
+        List<Comment> commentList = commentService.list(new QueryWrapper<Comment>().eq("topic_id", bid).orderByDesc("gmt_create"));
+        model.addAttribute("commentList",commentList);
+        return "blog/read";
+    }
+
+    // 编辑问题
+    @GetMapping("/blog/editor/{uid}/{bid}")
+    public synchronized String toEditor(@PathVariable("uid") String uid,
+                           @PathVariable("bid") String bid,Model model){
+
+        Blog blog = blogService.getOne(new QueryWrapper<Blog>().eq("bid", bid));
+
+        if (!blog.getAuthorId().equals(uid)){
+            QuinnUtils.print("禁止非法编辑");
+            return "redirect:/blog";
+        }
+
+        model.addAttribute("blog",blog);
+
+        List<BlogCategory> categoryList = blogCategoryService.list(null);
+        model.addAttribute("categoryList",categoryList);
+
+        return "blog/editor";
+    }
+
+    @PostMapping("/blog/editor")
+    public String editor(Blog blog){
+        Blog queryBlog = blogService.getOne(new QueryWrapper<Blog>().eq("bid", blog.getBid()));
+
+        queryBlog.setTitle(blog.getTitle());
+        queryBlog.setCategoryId(blog.getCategoryId());
+        queryBlog.setContent(blog.getContent());
+        queryBlog.setGmtUpdate(QuinnUtils.getTime());
+
+        blogService.updateById(queryBlog);
+
+        return "redirect:/blog/read/"+blog.getBid();
+    }
+
+    // 删除问题
+    @GetMapping("/blog/delete/{uid}/{bid}")
+    public String delete(@PathVariable("uid") String uid,
+                         @PathVariable("bid") String bid){
+
+        Blog blog = blogService.getOne(new QueryWrapper<Blog>().eq("bid", bid));
+
+        if (!blog.getAuthorId().equals(uid)){
+            QuinnUtils.print("禁止非法删除");
+            return "redirect:/blog";
+        }
+
+        blogService.removeById(blog);
+        // 重定向到列表页面
+        return "redirect:/blog";
+    }
+
+    // 评论
+    @PostMapping("/blog/comment/{bid}")
+    public String comment(@PathVariable("bid") String bid, Comment comment){
+        // 存储评论
+        comment.setCommentId(QuinnUtils.getUuid());
+        comment.setTopicCategory(1);
+        comment.setGmtCreate(QuinnUtils.getTime());
+        commentService.save(comment);
+        // 重定向到列表页面
+        return "redirect:/blog/read/"+bid;
+    }
+
+
+
+
+}
+