package com.freewebsys.blog.service.impl;
import java.io.File;
import java.util.List;
import java.util.Map;
import java.util.Date;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.apache.commons.io.FileUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.freewebsys.blog.common.GlobalConf;
import com.freewebsys.blog.dao.BaseDao;
import com.freewebsys.blog.page.PageConf;
import com.freewebsys.blog.pojo.Comment;
import com.freewebsys.blog.pojo.Post;
import com.freewebsys.blog.service.CommentService;
import com.freewebsys.blog.template.CommonTemplateService;
import com.freewebsys.blog.template.FreemakerTemplateEngine;
public class CommentServiceImp implements CommentService {
@Autowired
private BaseDao baseDao;
private static Log log = LogFactory.getLog(CommentServiceImp.class);
/**
* Comment删除
*/
@Transactional
public void deleteCommentById(Long id) throws Exception {
log.info("deleteCommentById：" + id);
try {
Comment comment = (Comment) baseDao.findById(Comment.class, id);
baseDao.delete(comment);
} catch (Exception e) {
log.info("Comment删除异常");
e.printStackTrace();
}
}
/**
* Comment保存
*/
@Transactional
public void saveComment(Comment comment) throws Exception {
log.info("saveComment：" + comment);
try {
if (comment.getPostId() != null) {
baseDao.save(comment);
Post post = (Post) baseDao.findById(Post.class,
comment.getPostId());
// 所有评论数据.
List<Comment> commentList = findAllCommentByPostId(post.getId());
// 循环展示页面.
String url = post.getUrl();
url = url.substring(0, url.lastIndexOf("/") + 1);
// 生成评论文件夹路径。
String filePath = FreemakerTemplateEngine.WEBAPP_PATH + url
+ "article_" + post.getId() + "/";
// 如果文件夹不存在,创建.
File fileDir = new File(filePath);
if (!fileDir.exists()) {
fileDir.mkdirs();
}
// 输出评论数量。
System.out.println(filePath + "comment_count.json");
FileUtils.writeStringToFile(new File(filePath
+ "comment_count.json"), commentList.size() + "",
GlobalConf.ENCODING);
// 生成评论分页数据。
CommonTemplateService.genCommentByPage(20, commentList,
filePath);
}
} catch (Exception e) {
log.info("Comment保存异常");
e.printStackTrace();
}
}
/**
* Comment按ID查询
*/
@Transactional
public Comment findCommentById(Long id) throws Exception {
log.info("findCommentById：" + id);
try {
return (Comment) baseDao.findById(Comment.class, id);
} catch (Exception e) {
log.info("Comment按ID查询异常");
e.printStackTrace();
}
return null;
}
/**
* Comment分页
*/
@Transactional
public PageConf findCommentPageList(int start, int limit, Map map)
throws Exception {
log.info("findCommentPageList：" + start + "," + limit);
try {
String hql = " select module from Comment module ";
return baseDao.findPage(start, limit, hql);
} catch (Exception e) {
log.info("Comment分页异常");
e.printStackTrace();
}
return null;
}
/**
* 查询Comment全部
*/
public List<Comment> findAllCommentByPostId(Long postId) throws Exception {
log.info("findAllCommentByPostId：" + postId);
try {
String hql = " select module from Comment module where module.status = 1 " +
" and module.postId = ? order by module.createDate asc";
return baseDao.find(hql, postId);
} catch (Exception e) {
log.info("查询Comment全部异常");
e.printStackTrace();
}
return null;
}
public static void main(String[] args) {
String url = "/2012/01/01/111.html";
System.out.println(url.substring(0, url.lastIndexOf("/") + 1));
}
}