新项目开发-基于java开发实现的一个健身app后端系统源码.7z

package com.hzh.fitness.service.impl; import com.hzh.fitness.common.GlobalConstant; import com.hzh.fitness.exception.GlobalException; import com.hzh.fitness.mapper.ArticleMapper; import com.hzh.fitness.po.Article; import com.hzh.fitness.po.ArticleImg; import com.hzh.fitness.po.Comment; import com.hzh.fitness.service.ArticleService; import com.hzh.fitness.utils.FileUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; /** * @author hzh */ @Service public class ArticleServiceImpl implements ArticleService { @Autowired ArticleMapper articleMapper; @Override public Article searchArticle(int id) throws Exception { return articleMapper.selectArticleById(id); } @Override public Article createArticle(Article article) throws Exception { byte[][] imgData = article.getImgData(); String[] imgs = article.getImg(); articleMapper.insertArticle(article); if (imgs != null) { ArticleImg[] articleImgs = new ArticleImg[imgs.length]; for (int i = 0; i < imgs.length; i++) { String hex = FileUtils.sha1String(imgData[i]); String suffix = "." + imgs[i].split("\\.")[1]; if (articleMapper.selectImgHex(hex) == null) FileUtils.bytesToFile(imgData[i], GlobalConstant.IMAGE_ROOT + "/articleImg/", hex + suffix, false); articleImgs[i] = new ArticleImg(article.getId(), hex + suffix, FileUtils.sha1String(imgData[i])); } articleMapper.insertArticleImg(articleImgs,article.getId()); } return articleMapper.selectArticleById(article.getId()); } @Override public Article[] selectArticles(int id, String type, int page, int perPage) throws Exception { return new Article[0]; } @Override public Article[] selectPersonalArticles(int id, int page, int perPage) throws Exception { return articleMapper.selectPersonalArticles(id, page, perPage); } @Override public Article[] selectFollowArticles(int id, int page, int perPage) throws Exception { return articleMapper.selectFollowArticles(id, page, perPage); } @Override public Article[] selectNewestArticles(int page, int perPage) throws Exception { return articleMapper.selectNewestArticles(page, perPage); } @Override public Article[] selectHotArticles(int page, int perPage) throws Exception { return articleMapper.selectHotArticles(page, perPage); } @Override public void likeArticle(int userId, int articleId) throws Exception { int c = articleMapper.selectArticleLikeLog(userId, articleId); int c2 = articleMapper.selectArticleId(articleId); if (c == 1) { throw new GlobalException("已经点赞过了"); } if (c2 == 0) { throw new GlobalException("不存在该动态"); } articleMapper.updateLikeCountToArticle(articleId, 1); articleMapper.insertLikeArticle(userId, articleId); } @Override public void likeComment(int userId, int commentId) throws Exception { int c = articleMapper.selectCommentLikeLog(userId, commentId); int c2 = articleMapper.selectCommentId(commentId); if (c == 1) { throw new GlobalException("已经点赞过了"); } if (c2 == 0) { throw new GlobalException("不存在该评论"); } articleMapper.insertLikeComment(userId, commentId); articleMapper.updateLikeCountToComment(commentId, 1); } @Override public void dislikeArticle(int userId, int articleId) throws Exception { int c = articleMapper.selectArticleLikeLog(userId, articleId); int c2 = articleMapper.selectArticleId(articleId); if (c == 0) { throw new GlobalException("还未点赞过"); } if (c2 == 0) { throw new GlobalException("不存在该动态"); } articleMapper.updateLikeCountToArticle(articleId, -1); articleMapper.deleteLikeArticle(userId, articleId); } @Override public void dislikeComment(int userId, int commentId) throws Exception { int c = articleMapper.selectCommentLikeLog(userId, commentId); int c2 = articleMapper.selectCommentId(commentId); if (c == 0) { throw new GlobalException("还未点赞过"); } if (c2 == 0) { throw new GlobalException("不存在该评论"); } articleMapper.deleteLikeComment(userId, commentId); articleMapper.updateLikeCountToComment(commentId, -1); } @Override public Comment createComment(Comment comment) throws Exception { if (comment.getCommentId() != null && articleMapper.checkCommentById(comment.getCommentId()) == 0) { throw new GlobalException("不存在该评论"); } if (articleMapper.checkArticleById(comment.getArticleId()) == 0) { throw new GlobalException("不存在该动态"); } articleMapper.insertComment(comment); articleMapper.updateCommentCount(comment.getArticleId()); return articleMapper.selectCommentById(comment.getId()); } @Override public Comment[] getSubComment(int commentId) throws Exception { int c2 = articleMapper.selectCommentId(commentId); if (c2 == 0) { throw new GlobalException("不存在该评论"); } return articleMapper.selectSubComment(commentId); } }