// 处理事务：新增新闻
public ActionForward add(
ActionMapping mapping,
ActionForm actionForm,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
DynaActionForm form = (DynaActionForm) actionForm;
HttpSession session = request.getSession();
int categoryNum = (Integer) form.get("categoryNum");
String title = form.getString("title");
String detail = form.getString("editorContent");
title = new String(title.getBytes("iso-8859-1"), "utf-8");
detail = new String(detail.getBytes("iso-8859-1"), "utf-8");
Admin admin = (Admin) session.getAttribute(Name.Admin);
News news = new News();
news.setAdminNum(admin.getNum());
news.setTitle(title);
news.setCategoryNum(categoryNum);
news.setDetail(detail);
news.setIsUsed(true);
Controller.save(news);
String successStr = "成功添加 " + title + "<br/>\n";
successStr += "<a href=\"news_add.jsp\">继续添加</a><br/>\n";
successStr += "<a href=\"news_view.do?method=viewList\">返回资讯列表</a>";
request.getSession().setAttribute(Name.AdminSuccessInfo, successStr);
return mapping.findForward("success");
}
// 处理事务：开启新闻或是关闭新闻，不使用ActionForm，主键通过URL由HttpServletRequest对象获取
public ActionForward setIsUsed(
ActionMapping mapping,
ActionForm actionForm,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
int num = Integer.parseInt(request.getParameter(Name.Property));
String hql = "from News news where news.num='" + num + "'";
News news = Controller.get(hql);
String code = request.getParameter("code");
if ("start".equals(code)) {
news.setIsUsed(true);
} else {
news.setIsUsed(false);
}
Controller.update(news);
response.sendRedirect("news_view.do?method=viewList");
return null;
}
// 初始化更新新闻页面，不使用ActionForm，主键通过URL由HttpServletRequest对象获取
public ActionForward updateView(
ActionMapping mapping,
ActionForm actionForm,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
int num = Integer.parseInt(request.getParameter(Name.Property));
String hql = "from News news where news.num='" + num + "'";
News news = Controller.get(hql);
request.getSession().setAttribute(Name.AdminNews, news);
response.sendRedirect("news_update.jsp");
return null;
}
// 初始化新闻列表页面
public ActionForward viewList(
ActionMapping mapping,
ActionForm actionForm,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
HttpSession session = request.getSession();
String newsHql = "from News news";
List<News> newsList = Controller.getList(newsHql);
List<NewsListView> list = new ArrayList<NewsListView>();
Iterator<News> iter = newsList.iterator();
News news = null;
NewsListView nlv = null;
while (iter.hasNext()) {
news = iter.next();
nlv = new NewsListView();
nlv.setIsUsed(news.getIsUsed());
nlv.setNum(news.getNum());
nlv.setTitle(news.getTitle());
int categoryNum = news.getCategoryNum();
String categoryName = Page.getNewsCategoryName(categoryNum);
nlv.setCategoryName(categoryName);
int adminNum = news.getAdminNum();
String author = Admin.getAdminName(adminNum);
nlv.setAuthor(author);
Timestamp time = news.getTime();
String date;
if (time == null) {
date = "暂无";
} else {
date = time.toString();
}
nlv.setDate(date);
list.add(nlv);
}
session.setAttribute(Name.AdminNewsList, list);
return mapping.findForward("success");
}
// 处理事务：更新新闻
public ActionForward update(
ActionMapping mapping,
ActionForm actionForm,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
DynaActionForm form = (DynaActionForm) actionForm;
HttpSession session = request.getSession();
News news = (News) session.getAttribute(Name.AdminNews);
session.removeAttribute(Name.AdminNews);
int categoryNum = (Integer) form.get("categoryNum");
String title = form.getString("title");
String detail = form.getString("editorContent");
title = new String(title.getBytes("iso-8859-1"), "utf-8");
detail = new String(detail.getBytes("iso-8859-1"), "utf-8");
news.setTitle(title);
news.setCategoryNum(categoryNum);
news.setDetail(detail);
String successStr;
if (Controller.update(news)) {
successStr = "成功更新资讯 " + title + "<br/>\n";
successStr +=
"<a href=\"news-select.do?method=updateView&property="
+ news.getNum()
+ "\">重新修改</a><br/>\n";
} else {
successStr = "更新 " + title + "失败，<br/>\n";
successStr +=
"<a href=\"news-select.do?method=updateView&property="
+ news.getNum()
+ "\">重试</a><br/>\n";
}
successStr += "<a href=\"news_view.do?method=viewList\">返回资讯列表</a>";
session.setAttribute(Name.AdminSuccessInfo, successStr);
return mapping.findForward("success");
}
public static String getName(int num) {
String hql = "select shop.name from Shop shop where shop.num='" + num + "'";
Object obj = Controller.get(hql);
return (String) obj;
}
