代码INIT
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254
src/main/java/com/quinn/controller/QuestionController.java
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254
src/main/java/com/quinn/controller/QuestionController.java
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package com.quinn.controller;
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import com.alibaba.fastjson.JSONObject;
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.quinn.pojo.Comment;
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import com.quinn.pojo.Question;
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import com.quinn.pojo.QuestionCategory;
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import com.quinn.service.CommentService;
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import com.quinn.service.QuestionCategoryService;
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import com.quinn.service.QuestionService;
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import com.quinn.utils.QuinnUtils;
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import com.quinn.vo.QuestionWriteForm;
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import io.swagger.annotations.ApiOperation;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.Model;
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import org.springframework.web.bind.annotation.*;
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import org.springframework.web.multipart.MultipartFile;
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import javax.servlet.http.HttpServletRequest;
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import java.io.File;
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import java.io.IOException;
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import java.util.Calendar;
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import java.util.List;
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import java.util.UUID;
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/**
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* <p>
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* 前端控制器
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* </p>
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*
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* @author 遇见狂神说
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* @since 2020-06-28
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*/
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@Controller
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public class QuestionController {
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@Autowired
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QuestionCategoryService questionCategoryService;
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@Autowired
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QuestionService questionService;
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@Autowired
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CommentService commentService;
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// 问题列表展示
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@GetMapping("/question")
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public String questionList(Model model){
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Page<Question> pageParam = new Page<>(1, 10);
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questionService.page(pageParam,new QueryWrapper<Question>().orderByDesc("gmt_create"));
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// 结果
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List<Question> questionList = pageParam.getRecords();
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model.addAttribute("questionList",questionList);
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model.addAttribute("pageParam",pageParam);
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// 分类信息
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List<QuestionCategory> categoryList = questionCategoryService.list(null);
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model.addAttribute("categoryList",categoryList);
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return "question/list";
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}
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@GetMapping("/question/{page}/{limit}")
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public String questionListPage(
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@PathVariable int page,
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@PathVariable int limit,
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Model model){
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if (page < 1){
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page = 1;
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}
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Page<Question> pageParam = new Page<>(page, limit);
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questionService.page(pageParam,new QueryWrapper<Question>().orderByDesc("gmt_create"));
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// 结果
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List<Question> questionList = pageParam.getRecords();
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model.addAttribute("questionList",questionList);
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model.addAttribute("pageParam",pageParam);
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// 分类信息
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List<QuestionCategory> categoryList = questionCategoryService.list(null);
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model.addAttribute("categoryList",categoryList);
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return "question/list";
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}
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// 发布问题
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@GetMapping("/question/write")
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public String toWrite(Model model){
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List<QuestionCategory> categoryList = questionCategoryService.list(null);
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model.addAttribute("categoryList",categoryList);
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return "question/write";
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}
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@PostMapping("/question/write")
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public synchronized String write(QuestionWriteForm questionWriteForm){
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// 构建问题对象
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Question question = new Question();
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question.setQid(QuinnUtils.getUuid());
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question.setTitle(questionWriteForm.getTitle());
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question.setContent(questionWriteForm.getContent());
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question.setStatus(0);
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question.setSort(0);
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question.setViews(0);
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question.setAuthorId(questionWriteForm.getAuthorId());
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question.setAuthorName(questionWriteForm.getAuthorName());
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question.setAuthorAvatar(questionWriteForm.getAuthorAvatar());
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QuestionCategory category = questionCategoryService.getById(questionWriteForm.getCategoryId());
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question.setCategoryId(questionWriteForm.getCategoryId());
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question.setCategoryName(category.getCategory());
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question.setGmtCreate(QuinnUtils.getTime());
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question.setGmtUpdate(QuinnUtils.getTime());
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// 存储对象
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questionService.save(question);
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// 重定向到列表页面
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return "redirect:/question";
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}
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// 阅读问题
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@GetMapping("/question/read/{qid}")
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public String read(@PathVariable("qid") String qid,Model model){
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Question question = questionService.getOne(new QueryWrapper<Question>().eq("qid", qid));
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// todo: redis缓存. 防止阅读重复
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question.setViews(question.getViews()+1);
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questionService.updateById(question);
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model.addAttribute("question",question);
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// todo： 查询评论.
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List<Comment> commentList = commentService.list(new QueryWrapper<Comment>().eq("topic_id", qid).orderByDesc("gmt_create"));
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model.addAttribute("commentList",commentList);
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return "question/read";
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}
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// 评论
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@PostMapping("/question/comment/{qid}")
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public String comment(@PathVariable("qid") String qid, Comment comment){
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// 存储评论
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comment.setCommentId(QuinnUtils.getUuid());
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comment.setTopicCategory(2);
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comment.setGmtCreate(QuinnUtils.getTime());
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commentService.save(comment);
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// 状态改为已解决
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Question question = questionService.getOne(new QueryWrapper<Question>().eq("qid", qid));
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question.setStatus(1);
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questionService.updateById(question);
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// 重定向到列表页面
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return "redirect:/question/read/"+qid;
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}
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// 编辑问题
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@GetMapping("/question/editor/{uid}/{qid}")
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public synchronized String toEditor(@PathVariable("uid") String uid,
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@PathVariable("qid") String qid,Model model){
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Question question = questionService.getOne(new QueryWrapper<Question>().eq("qid", qid));
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if (!question.getAuthorId().equals(uid)){
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QuinnUtils.print("禁止非法编辑");
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return "redirect:/question";
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}
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model.addAttribute("question",question);
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List<QuestionCategory> categoryList = questionCategoryService.list(null);
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model.addAttribute("categoryList",categoryList);
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return "question/editor";
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}
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@PostMapping("/question/editor")
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public String editor(Question question){
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Question queryQuestion = questionService.getOne(new QueryWrapper<Question>().eq("qid", question.getQid()));
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queryQuestion.setTitle(question.getTitle());
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queryQuestion.setCategoryId(question.getCategoryId());
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queryQuestion.setContent(question.getContent());
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queryQuestion.setGmtUpdate(QuinnUtils.getTime());
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questionService.updateById(queryQuestion);
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return "redirect:/question/read/"+question.getQid();
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}
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// 删除问题
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@GetMapping("/question/delete/{uid}/{qid}")
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public String delete(@PathVariable("uid") String uid,
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@PathVariable("qid") String qid){
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Question question = questionService.getOne(new QueryWrapper<Question>().eq("qid", qid));
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if (!question.getAuthorId().equals(uid)){
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QuinnUtils.print("禁止非法删除");
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return "redirect:/question";
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}
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questionService.removeById(question);
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// 重定向到列表页面
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return "redirect:/question";
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}
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// md 文件上传
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@ApiOperation(value = "md文件上传问题")
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@RequestMapping("/question/write/file/upload")
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@ResponseBody
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public JSONObject fileUpload(@RequestParam(value = "editormd-image-file", required = true) MultipartFile file, HttpServletRequest request) throws IOException {
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//获得SpringBoot当前项目的路径：System.getProperty("user.dir")
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String path = System.getProperty("user.dir")+"/upload/";
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//按照月份进行分类：
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Calendar instance = Calendar.getInstance();
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String month = (instance.get(Calendar.MONTH) + 1)+"月";
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path = path+month;
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File realPath = new File(path);
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if (!realPath.exists()){
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realPath.mkdir();
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}
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//上传文件地址
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QuinnUtils.print("上传文件保存地址："+realPath);
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//解决文件名字问题：我们使用uuid;
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String filename = "ks-"+ UUID.randomUUID().toString().replaceAll("-", "");
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String originalFilename = file.getOriginalFilename();
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// QuinnUtils.print(originalFilename);
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assert originalFilename != null;
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int i = originalFilename.lastIndexOf(".");
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String suffix = originalFilename.substring(i + 1);
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String outFilename = filename + "."+suffix;
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QuinnUtils.print("文件名：" + outFilename);
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//通过CommonsMultipartFile的方法直接写文件（注意这个时候）
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file.transferTo(new File(realPath +"/"+ outFilename));
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//给editormd进行回调
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JSONObject res = new JSONObject();
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res.put("url","/upload/"+month+"/"+ outFilename);
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res.put("success", 1);
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res.put("message", "upload success!");
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QuinnUtils.print(res.toJSONString());
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return res;
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}
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}
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