SpringBoot+Mybatis+Maven+Mysql实现的校园论坛管理系统

本系统是一个校园论坛管理系统，分为前后台，前台可以发帖留言，亮点是集成了mardown文档，可以有个很美观的帖子格式。后台管理员可以对用户、帖子、评论、分类等进行管理。
(文末查看完整源码)

实现功能截图

系统功能

本系统实现了以下功能：
1、登录
2、分类帖子查看
3、留言
4、发帖
5、用户管理
6、帖子管理
7、评论管理
8、留言管理
9、回复管理
10、分类管理
11、通知管理
等

使用技术

数据库：mysql
开发工具：Idea（Myeclispe、Eclipse也可以）
知识点：Spring+structs2+hibernate

项目结构

代码

java端
实体类
Comment.java

package com.forum.entity;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;import java.util.ArrayList;
import java.util.Date;
import java.util.List;@Data
@AllArgsConstructor
@NoArgsConstructor
public class Comment {private Long id;private String username;private String email;private String content;//是否为用户评论private boolean userComment;//头像private String avatar;private Date createTime;private Long forumId;private Long parentCommentId;  //父评论id，是為1
//    private String parentNickname;//回复评论private List<Comment> replyComments = new ArrayList<>();//是否是用户评论private Comment parentComment;private Forum forum;}

Forum.java

package com.forum.entity;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;import java.util.ArrayList;
import java.util.Date;
import java.util.List;@Data
@AllArgsConstructor
@NoArgsConstructor
public class Forum {private Long id;private String title;private String content;private String avatars;
//    原创转载private String flag;private Integer views;private boolean commentabled;private Date createTime;private Date updateTime;private Long userId;private String description;private int like;//    private Admin admin;private User user;private List<Tag> tags = new ArrayList<>();private List<Comment> comments = new ArrayList<>();private String tagIds;public void init(){this.tagIds = tagsToIds(this.getTags());}//将tags集合转换为tagIds字符串形式：“1,2,3”,用于编辑博客时显示博客的tagprivate String tagsToIds(List<Tag> tags){if(!tags.isEmpty()){StringBuffer ids = new StringBuffer();boolean flag = false;for(Tag tag: tags){if(flag){ids.append(",");}else {flag = true;}ids.append(tag.getId());}return ids.toString();}else {return tagIds;}}}

CommentServiceImpl.java

package com.forum.service.impl;import com.forum.dao.ForumDao;
import com.forum.dao.CommentDao;
import com.forum.entity.Comment;
import com.forum.service.CommentService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.ArrayList;
import java.util.Date;
import java.util.List;@Service
public class CommentServiceImpl implements CommentService {@Autowiredprivate CommentDao commentDao;@Autowiredprivate ForumDao forumDao;@Overridepublic List<Comment> getCommentByForumId(Long forumId) {  //查询父评论//没有父节点的默认为-1List<Comment> comments = commentDao.findByForumIdAndParentCommentNull(forumId, Long.parseLong("-1"));return comments;}@Override//接收回复的表单public int saveComment(Comment comment) {//获得父idLong parentCommentId = comment.getParentComment().getId();System.out.println("是否是父评论"+parentCommentId);comment.setAvatar("https://wallpaperm.cmcm.com/aab1692cf70ed27d9ebcf0ca3e88d61d.jpg");//没有父级评论默认是-1if (parentCommentId != -1) {//有父级评论
//            comment.setParentComment(commentDao.findByParentCommentId(comment.getParentCommentId()));comment.setParentCommentId(parentCommentId);} else {//没有父级评论comment.setParentCommentId((long) 0);
//            comment.setParentComment(null);}comment.setCreateTime(new Date());return commentDao.saveComment(comment);}@Overridepublic List<Comment> getAllComment() {return commentDao.getAllComment();}@Overridepublic void delById(Integer id) {commentDao.delById(id);}/*** 循环每个父评论“1”*/
//    private List<Comment> oneComment(List<Comment> comments){//        List<Comment> commentsView = new ArrayList<>();
//        for (Comment comment : comments) {//            Comment comment1 = new Comment();
//            BeanUtils.copyProperties(comment,comment1);
//            commentsView.add(comment1);
//
//        }
//        combineChildren(commentsView);
//        return commentsView;
//    }
//
//    /**
//     * 存储帖子为1的对象集合
//     * @param comments
//     */
//    private void combineChildren(List<Comment> comments) {//        for (Comment comment : comments) {//            List<Comment> replys1 = comment.getReplyComments();
//            for (Comment reply1 : replys1) {//                recursively(reply1);
//            }
//            comment.setReplyComments(tempReplys);
//            tempReplys = new ArrayList<>();
//        }
//    }
//private List<Comment> tempReplys =new ArrayList<>();
//
//    /**
//     * 迭代的对象
//     * @param
//     */
//    private void recursively(Comment comment) {//        tempReplys.add(comment);
//        if (comment.getReplyComments().size()>0){//            List<Comment> replys = comment.getReplyComments();
//            for (Comment reply : replys) {//                tempReplys.add(reply);
//                if (reply.getReplyComments().size()>0){//                    recursively(reply);
//                }
//
//            }
//        }
//    }
}

ForumServiceImpl.java

package com.forum.service.impl;import com.forum.dao.ForumDao;
import com.forum.entity.*;
import com.forum.exception.NotFoundException;
import com.forum.service.ForumService;
import com.forum.service.TagService;
import com.forum.utils.MarkdownUtils;
//import com.forum.utils.RedisUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.*;@Service
public class ForumServiceImpl implements ForumService {@AutowiredForumDao forumDao;@AutowiredTagService tagService;
//    @Autowired
//    RedisUtil redisUtil;private Boolean hasKey = false;@Overridepublic void updateView(Long id) {forumDao.updateView(id);}@Overridepublic Forum getForum(Long id) {return forumDao.getForum(id);}@Overridepublic Forum getDetailedForum(Long id) {Forum forum = forumDao.getDetailedForum(id);if (forum == null) {throw new NotFoundException("该帖子不存在");}String content = forum.getContent();forum.setContent(MarkdownUtils.markdownToHtmlExtensions(content));  //将Markdown格式转换成htmlreturn forum;}@Overridepublic List<Forum> getAllForum() {return forumDao.getAllForum();}@Overridepublic List<Forum> getByTypeId(Long typeId) {return forumDao.getByTypeId(typeId);}@Overridepublic List<Forum> getByTagId(Long tagId) {return forumDao.getByTagId(tagId);}@Overridepublic List<Forum> getIndexForum() {List<Forum> forums = forumDao.getIndexForum();
//        int startPage=(pageNum-1)*5;
//        List<Forum> forums= forumDao.getForumTadIds();
//        System.out.println(forums.size());
//        List<Tag> tags;
//        for (Forum forum : forums) {//            tags=new ArrayList<>();
//            for (TagIds id : forum.getTagsId()) {//                tags.add(tagService.getTagById(id.getTag_id()));
//            }
//            forum.setTags(tags);
//
//        }return forums;}@Overridepublic List<Forum> getAllRecommendForum() {return forumDao.getAllRecommendForum();}@Overridepublic List<Forum> getSearchForum(String query) {return forumDao.getSearchForum(query);}@Overridepublic Map<String, List<Forum>> archiveForum() {List<String> years;Map<String, List<Forum>> map = new LinkedHashMap<>();years = forumDao.findGroupYear();Set<String> set = new HashSet<>(years);  //set去掉重复的年份//        转回list进行排序years = new ArrayList<>(set);Collections.sort(years);Collections.reverse(years);
//    遍历for (String year : years) {System.out.println(year);map.put(year, findForumAndTagsByYear(year));}return map;}/*根据查找文章的所有*/public List<Forum> findForumAndTagsByYear(String year) {List<Forum> forumAndTagIds = forumDao.findForumAndTagsByYear(year);//       将标签的id集合遍历查找出标签List<Tag> tags;for (Forum forumAndTagId : forumAndTagIds) {tags = new ArrayList<>();//            System.out.println(tags.size());forumAndTagId.setTags(tags);}return forumAndTagIds;}@Overridepublic int countForum() {return forumDao.getAllForum().size();}@Overridepublic List<Forum> searchAllForum(Forum forum) {return forumDao.searchAllForum(forum);}/*** 排行榜信息** @return*/@Overridepublic List<RankForum> findForumByLank() {List<RankForum> rankForums = new ArrayList<>();rankForums = forumDao.findForumByRank();return rankForums;//
//        }else {//            System.out.println("走REDIS---");
//            return (List<RankForum>) redisUtil.get("rank");
//
//        }}@Overridepublic List<RankForum> getNewForum() {return forumDao.getNewForum();}//    @Override
//    public Long getLike(Long id) {//        return forumDao.getLike(id);
//    }//    @Override
//    public void addLike(Long forumId, Long userId) {        forumDao.addLike(forumId);
        forumDao.addForum_Like(forumId, userId);
//        System.out.println("执行插入Like_User");
//
//    }//    @Override
//    public int getLikeByUser(Long userId, Long forumId) {//        return forumDao.getLikeByUser(userId, forumId);
//    }//    @Override
//    public void cancelLike(Long forumId, Long userId) {//        forumDao.cancelLike(forumId);
//        forumDao.removeForum_Like(forumId, userId);
//    }@Overridepublic int countView() {return forumDao.countView();}@Overridepublic void addLike(Long id) {forumDao.addLike(id);}@Override    //新增帖子public int saveForum(Forum forum) {forum.setCreateTime(new Date());forum.setViews(0);
//        forum.setFlag("原创");//保存帖子forumDao.saveForum(forum);//保存帖子后才能获取自增的idLong id = forum.getId();//将标签的数据存到t_forums_tag表中List<Tag> tags = forum.getTags();ForumAndTag forumAndTag = null;for (Tag tag : tags) {//新增时无法获取自增的id,在mybatis里修改forumAndTag = new ForumAndTag(tag.getId(), id);forumDao.saveForumAndTag(forumAndTag);}return 1;}@Override   //编辑帖子public int updateForum(Forum forum) {forum.setUpdateTime(new Date());//将标签的数据存到t_forums_tag表中List<Tag> tags = forum.getTags();ForumAndTag forumAndTag = null;for (Tag tag : tags) {forumAndTag = new ForumAndTag(tag.getId(), forum.getId());forumDao.saveForumAndTag(forumAndTag);}return forumDao.updateForum(forum);}@Overridepublic int deleteForum(Long id) {return forumDao.deleteForum(id);}}

controller层
CommentController.java

package com.forum.controller;import com.forum.entity.Comment;
import com.forum.entity.User;
import com.forum.service.ForumService;
import com.forum.service.CommentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;import javax.servlet.http.HttpSession;@Controller
public class CommentController {@Autowiredprivate CommentService commentService;@Autowiredprivate ForumService forumService;//    @Value("${comment.avatar}")private String avatar;@GetMapping("/comments/{forumId}")  //展示public String getComments(@PathVariable Long forumId, Model model){model.addAttribute("comments", commentService.getCommentByForumId(forumId));model.addAttribute("forum", forumService.getDetailedForum(forumId));return "forum :: commentList";}@PostMapping("/comments")   //提交public String postComment(Comment comment, HttpSession session){Long forumId = comment.getForum().getId();comment.setForum(forumService.getDetailedForum(forumId));  //绑定评论comment.setForumId(forumId);User user = (User) session.getAttribute("user");if (user != null){   //用户存在comment.setAvatar(user.getAvatar());comment.setUserComment(true);}else {comment.setAvatar(avatar);}System.out.println(comment);String contents = comment.getContent();String arr[]={"垃圾","滚","混蛋","王八蛋","有病","美白","祛痘","祛斑","纯天然","换肤","去除皱纹","防脱发","生发","无毒","安全","瘦脸","助眠",};for (int i = 0; i < arr.length; i++) {contents= contents.replaceAll(arr[i],"*");System.out.println(contents);comment.setContent(contents);}commentService.saveComment(comment);return "redirect:/comments/" + forumId;}
}

ForumController.java

package com.forum.controller.admin;import com.forum.entity.Forum;
import com.forum.entity.User;
import com.forum.service.ForumService;
import com.forum.service.TagService;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;import javax.servlet.http.HttpSession;
import java.util.List;@Controller
@RequestMapping("/admin")
public class ForumController {@Autowiredprivate ForumService forumService;@Autowiredprivate TagService tagService;public void setTypeAndTag(Model model) {model.addAttribute("tags", tagService.getAllTag());}@GetMapping("/forums")  //后台显示帖子列表public String forums(@RequestParam(required = false,defaultValue = "1",value = "pagenum")int pagenum, Model model){PageHelper.startPage(pagenum, 5);List<Forum> allForum = forumService.getAllForum();//得到分页结果对象PageInfo pageInfo = new PageInfo(allForum);model.addAttribute("pageInfo", pageInfo);setTypeAndTag(model);  //查询类型和标签return "admin/forums";}@GetMapping("/forums/input") //去新增帖子页面public String toAddForum(Model model){model.addAttribute("forum", new Forum());  //返回一个forum对象给前端th:objectsetTypeAndTag(model);return "admin/forums-input";}@PostMapping("/forums") //新增public String addForum(Forum forum, HttpSession session, RedirectAttributes attributes){//设置user属性forum.setUser((User) session.getAttribute("admin"));//设置用户idforum.setUserId(forum.getUser().getId());
//        //设置forum的type//给forum中的List<Tag>赋值forum.setTags(tagService.getTagByString(forum.getTagIds()));forumService.saveForum(forum);attributes.addFlashAttribute("msg", "新增成功");return "redirect:/admin/forums";}@GetMapping("/forums/{id}/edit") //去编辑帖子页面public String toEditForum(@PathVariable Long id, Model model){Forum forum = forumService.getForum(id);forum.init();   //将tags集合转换为tagIds字符串model.addAttribute("forum", forum);     //返回一个forum对象给前端th:objectsetTypeAndTag(model);return "admin/forums-edit";}@PostMapping("/forums/edit") //编辑public String editForum(Forum forum, HttpSession session, RedirectAttributes attributes){//设置user属性forum.setUser((User) session.getAttribute("admin"));//设置用户idforum.setUserId(forum.getUser().getId());
//        //设置forum的type//给forum中的List<Tag>赋值forum.setTags(tagService.getTagByString(forum.getTagIds()));System.out.println(forum);forumService.updateForum(forum);attributes.addFlashAttribute("msg", "编辑成功");return "redirect:/admin/forums";}@GetMapping("/forums/{id}/delete")public String deleteForums(@PathVariable Long id, RedirectAttributes attributes){forumService.deleteForum(id);attributes.addFlashAttribute("msg", "删除成功");return "redirect:/admin/forums";}@PostMapping("/forums/search")  //按条件查询帖子public String searchForums(Forum forum, @RequestParam(required = false,defaultValue = "1",value = "pagenum")int pagenum, Model model){PageHelper.startPage(pagenum, 5);List<Forum> allForum = forumService.searchAllForum(forum);//得到分页结果对象PageInfo pageInfo = new PageInfo(allForum);model.addAttribute("pageInfo", pageInfo);model.addAttribute("message", "查询成功");setTypeAndTag(model);return "forums";}}

完整源码

觉得有用，记得一键三连哦！

SpringBoot+Mybatis+Maven+Mysql实现的校园论坛管理系统（功能包含前后台，登录、markdown发帖、留言、分类帖子查看、用户管理、帖子管理、回复管理、评论管理、留言管理等）相关推荐

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