从"Blog"仓库中分离出来

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

@@ -0,0 +1,192 @@
+package cn.celess.blog.service.serviceimpl;
+
+import cn.celess.blog.enmu.ResponseEnum;
+import cn.celess.blog.entity.Comment;
+import cn.celess.blog.entity.model.CommentModel;
+import cn.celess.blog.entity.request.CommentReq;
+import cn.celess.blog.exception.MyException;
+import cn.celess.blog.mapper.ArticleMapper;
+import cn.celess.blog.mapper.CommentMapper;
+import cn.celess.blog.service.CommentService;
+import cn.celess.blog.service.UserService;
+import cn.celess.blog.util.DateFormatUtil;
+import cn.celess.blog.util.RedisUserUtil;
+import com.github.pagehelper.PageHelper;
+import com.github.pagehelper.PageInfo;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import javax.servlet.http.HttpServletRequest;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+/**
+ * @author : xiaohai
+ * @date : 2019/03/29 17:05
+ */
+@Service
+public class CommentServiceImpl implements CommentService {
+    @Autowired
+    CommentMapper commentMapper;
+    @Autowired
+    UserService userService;
+    @Autowired
+    ArticleMapper articleMapper;
+    @Autowired
+    HttpServletRequest request;
+    @Autowired
+    RedisUserUtil redisUserUtil;
+
+    @Override
+    public CommentModel create(CommentReq reqBody) {
+
+        if (reqBody == null) {
+            throw new MyException(ResponseEnum.PARAMETERS_ERROR);
+        }
+        long authorID = redisUserUtil.get(request).getId();
+        Comment pComment = null;
+        if (reqBody.getPid() != null && reqBody.getPid() != -1) {
+            pComment = commentMapper.findCommentById(reqBody.getPid());
+        }
+        if (reqBody.getPid() == null) {
+            reqBody.setPid(-1L);
+        }
+        //不是一级评论
+        if (reqBody.getPid() != -1 && pComment == null) {
+            //父评论不存在
+            throw new MyException(ResponseEnum.PARAMETERS_ERROR);
+        }
+        Comment comment = new Comment();
+        comment.setAuthorID(authorID);
+        comment.setType(reqBody.getComment());
+        if (reqBody.getComment()) {
+            //若为评论
+            if (reqBody.getArticleID() <= 0) {
+                throw new MyException(ResponseEnum.PARAMETERS_ERROR);
+            }
+            comment.setArticleID(reqBody.getArticleID());
+        } else {
+            comment.setArticleID(-1L);
+        }
+        comment.setContent(reqBody.getContent());
+        comment.setPid(reqBody.getPid());
+        comment.setDate(new Date());
+        comment.setResponseId("");
+        commentMapper.insert(comment);
+        if (reqBody.getPid() != -1) {
+            commentMapper.updateResponder(pComment.getResponseId() + comment.getId() + ",", reqBody.getPid());
+        }
+        return trans(comment);
+    }
+
+    @Override
+    public boolean delete(long id) {
+        boolean b = commentMapper.existsById(id);
+        if (!b) {
+            throw new MyException(ResponseEnum.COMMENT_NOT_EXIST);
+        }
+        commentMapper.delete(id);
+        return true;
+    }
+
+    @Override
+    public CommentModel update(CommentReq reqBody) {
+        if (reqBody.getId() == null) {
+            throw new MyException(ResponseEnum.PARAMETERS_ERROR.getCode(), "id不可为空");
+        }
+        Comment comment = commentMapper.findCommentById(reqBody.getId());
+        if (!comment.getContent().equals(reqBody.getContent())) {
+            commentMapper.updateContent(reqBody.getContent(), reqBody.getId());
+            comment.setContent(reqBody.getContent());
+        }
+        if (!comment.getResponseId().equals(reqBody.getResponseId())) {
+            commentMapper.updateResponder(reqBody.getResponseId(), reqBody.getId());
+            comment.setResponseId(reqBody.getResponseId());
+        }
+        return trans(comment);
+    }
+
+
+    @Override
+    public PageInfo<CommentModel> retrievePage(Boolean isComment, int page, int count) {
+        PageHelper.startPage(page, count);
+        List<Comment> commentList = commentMapper.findAllByType(isComment);
+        PageInfo pageInfo = new PageInfo(commentList);
+        pageInfo.setList(list2List(commentList));
+        return pageInfo;
+    }
+
+    @Override
+    public PageInfo<CommentModel> retrievePageByPid(long pid, int page, int count) {
+        PageHelper.startPage(page, count);
+        List<Comment> commentList = commentMapper.findAllByPId(pid);
+        PageInfo pageInfo = new PageInfo(commentList);
+        pageInfo.setList(list2List(commentList));
+        return pageInfo;
+    }
+
+    @Override
+    public PageInfo<CommentModel> retrievePageByArticle(long articleID, long pid, int page, int count) {
+        PageHelper.startPage(page, count);
+        List<Comment> commentList = commentMapper.findAllByArticleIDAndPId(articleID, pid);
+        PageInfo pageInfo = new PageInfo(commentList);
+        pageInfo.setList(list2List(commentList));
+        return pageInfo;
+    }
+
+    @Override
+    public PageInfo<CommentModel> retrievePageByTypeAndPid(Boolean isComment, int pid, int page, int count) {
+        PageHelper.startPage(page, count);
+        List<Comment> commentList = commentMapper.findCommentsByTypeAndPId(isComment, pid);
+        PageInfo pageInfo = new PageInfo(commentList);
+        pageInfo.setList(list2List(commentList));
+        return pageInfo;
+    }
+
+    @Override
+    public PageInfo<CommentModel> retrievePageByAuthor(Boolean isComment, int page, int count) {
+        PageHelper.startPage(page, count);
+        List<Comment> commentList = commentMapper.findAllByAuthorIDAndType(redisUserUtil.get(request).getId(), isComment);
+        PageInfo pageInfo = new PageInfo(commentList);
+        pageInfo.setList(list2List(commentList));
+        return pageInfo;
+    }
+
+
+    @Override
+    public PageInfo<CommentModel> retrievePageByType(Boolean isComment, int page, int count) {
+        PageHelper.startPage(page, count);
+        List<Comment> commentList = commentMapper.findAllByType(isComment);
+        PageInfo pageInfo = new PageInfo(commentList);
+        pageInfo.setList(list2List(commentList));
+        return pageInfo;
+    }
+
+    private List<CommentModel> list2List(List<Comment> commentList) {
+        List<CommentModel> content = new ArrayList<>();
+        for (Comment c : commentList) {
+            content.add(trans(c));
+        }
+        return content;
+    }
+
+    private CommentModel trans(Comment comment) {
+        CommentModel commentModel = new CommentModel();
+        commentModel.setId(comment.getId());
+        commentModel.setComment(comment.getType());
+        commentModel.setContent(comment.getContent());
+        commentModel.setArticleID(comment.getArticleID());
+        commentModel.setDate(DateFormatUtil.get(comment.getDate()));
+        commentModel.setResponseId(comment.getResponseId());
+        commentModel.setPid(comment.getPid());
+        commentModel.setAuthorName(userService.getNameById(comment.getAuthorID()));
+        commentModel.setAuthorAvatarImgUrl("http://cdn.celess.cn/" + userService.getAvatarImg(comment.getAuthorID()));
+
+        if (comment.getType() && commentModel.getArticleID() > 0) {
+            commentModel.setArticleTitle(articleMapper.getTitleById(comment.getArticleID()));
+        }
+        return commentModel;
+    }
+
+}