package com.freewebsys.blog.service.impl;
import java.text.SimpleDateFormat;
import java.util.List;
import java.util.Map;
import java.util.Date;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
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.Post;
import com.freewebsys.blog.pojo.UserInfo;
import com.freewebsys.blog.service.PostService;
import com.freewebsys.blog.template.CommonTemplateService;
import com.mchange.v2.c3p0.stmt.GooGooStatementCache;
public class PostServiceImp implements PostService {
@Autowired
private BaseDao baseDao;
private static Log log = LogFactory.getLog(PostServiceImp.class);
/**
* Post删除
*/
@Transactional
public void deletePostById(Long id, HttpServletRequest request)
throws Exception {
log.info("deletePostById：" + id);
try {
Post post = (Post) baseDao.findById(Post.class, id);
baseDao.delete(post);
// 重新生成静态页面.
CommonTemplateService.genHtmlByTemplate(request);
} catch (Exception e) {
log.info("Post删除异常");
e.printStackTrace();
}
}
/**
* Post保存
*/
@Transactional
public void savePost(Post post, HttpServletRequest request)
throws Exception {
log.info("savePost：" + post);
try {
// 比较特殊需要知道ID.
boolean updateUrl = false;
if (post.getId() == null) {
// 获得session.
UserInfo userInfo = (UserInfo) request.getSession()
.getAttribute(GlobalConf.USER_SESSION);
// 设置作者.
post.setAuthorId(userInfo.getId());
// 设置创建时间.
post.setCreateDate(new Date().getTime());
// 设置修改时间.
post.setModifiedDate(new Date().getTime());
updateUrl = true;
} else {
// 设置修改时间.
post.setModifiedDate(new Date().getTime());
}
baseDao.save(post);
if (updateUrl) {// 第一次保存的时候更新url.
// 设置链接地址
SimpleDateFormat sdf = new SimpleDateFormat("/yyyy/MM/dd/");
String url = GlobalConf.BLOG_PATH + sdf.format(new Date())
+ "article_" + post.getId() + ".html";
post.setUrl(url);
updateUrl = false;
baseDao.save(post);
}
// 重新生成静态页面.
CommonTemplateService.genHtmlByTemplate(request);
} catch (Exception e) {
log.info("Post保存异常");
e.printStackTrace();
}
}
/**
* Post按ID查询
*/
@Transactional
public Post findPostById(Long id) throws Exception {
log.info("findPostById：" + id);
try {
return (Post) baseDao.findById(Post.class, id);
} catch (Exception e) {
log.info("Post按ID查询异常");
e.printStackTrace();
}
return null;
}
/**
* Post分页
*/
@Transactional
public PageConf findPostPageList(int start, int limit, Map map)
throws Exception {
log.info("findPostPageList：" + start + "," + limit);
try {
String hql = " from Post module left join fetch module.userInfo left join fetch module.postType "
+ " where module.status = 1 order by module.createDate desc ";
return baseDao.findPage(start, limit, hql);
} catch (Exception e) {
log.info("Post分页异常");
e.printStackTrace();
}
return null;
}
/**
* 查询Post全部
*/
@Transactional
public List<Post> findAllPost() throws Exception {
log.info("findAllPost：");
try {
String hql = " from Post module left join fetch module.userInfo left join fetch module.postType "
+ " where module.status = 1 order by module.createDate desc ";
return baseDao.find(hql);
} catch (Exception e) {
log.info("查询Post全部异常");
e.printStackTrace();
}
return null;
}
}