// 新闻阅读
private void readNews(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
int newsId = Integer.parseInt(request.getParameter("newsId"));
NewsInfo newsInfo = newsDao.queryNewsById(newsId);
request.setAttribute("newsInfo", newsInfo);
request.getRequestDispatcher("/newspages/news_read.jsp").forward(request, response);
}
// 删除新闻
private void newsDelete(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
int newsId = Integer.parseInt(request.getParameter("newsId"));
boolean flag = newsDao.deleteNewsById(newsId);
if (flag) {
newsList(request, response);
} else {
request.setAttribute("error", "删除新闻失败！");
newsList(request, response);
}
}
// 进入gotonewsModify新闻页面
private void gotonewsModify(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
newsId = Integer.parseInt(request.getParameter("newsId"));
NewsInfo newsInfo = newsDao.queryNewsById(newsId);
int typeId = newsInfo.getTypeId();
NewsType newsType = typeDao.queryNewsById(typeId);
String typeName = newsType.getTypeName();
request.setAttribute("typeName", typeName);
request.setAttribute("title", newsInfo.getNewsTitle());
request.setAttribute("author", newsInfo.getNewsAut());
request.setAttribute("summary", newsInfo.getNewsSum());
request.setAttribute("content", newsInfo.getNewsCon());
request.setAttribute("pic", newsInfo.getNewsPic());
request.getRequestDispatcher("/admin/news_modify.jsp").forward(request, response);
}
// 新闻修改
private void newsModify(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String title = request.getParameter("title");
String author = request.getParameter("author");
String summary = request.getParameter("summary");
String content = request.getParameter("content");
String file = request.getParameter("file");
NewsInfo newsInfo = new NewsInfo();
newsInfo.setNewsTitle(title);
newsInfo.setNewsAut(author);
newsInfo.setNewsSum(summary);
newsInfo.setNewsCon(content);
newsInfo.setNewsPic(file);
newsInfo.setNewsDate(new Date());
boolean flag = newsDao.updateNewsById(newsInfo, newsId);
if (flag) {
newsList(request, response);
} else {
request.setAttribute("error", "修改新闻出错！");
request.getRequestDispatcher("/admin/news_modify.jsp").forward(request, response);
}
}
// 添加新闻(实现文件上传)
public void newsAdd(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String filename = "";
SmartUpload su = new SmartUpload();
// 初始化SmartUpload对象
su.initialize(this.getServletConfig(), request, response);
com.jspsmart.upload.File file = null;
// 允许上传类型
String allowed = "gif,jpg,doc,rar";
// 不许上传类型
String denied = "jsp,asp,php,aspx,html,htm,exe,bat";
com.jspsmart.upload.Request req = null;
// 设置上传文件大小
int file_size = 10 * 1024 * 1024; // 10mb
String exceptionMsg = null;
int i = 0;
try {
// 定义允许上传文件类型
su.setAllowedFilesList(allowed);
// 不允许上传文件类型
su.setDeniedFilesList(denied);
// 单个文件最大限制
su.setMaxFileSize(file_size);
su.setCharset("GBK");
// 执行上传
su.upload();
// 得到单个上传文件的信息
file = su.getFiles().getFile(0);
String filepath = null;
if (!file.isMissing()) {
// 设置文件在服务器的保存位置
filepath = "upload\\";
filename = file.getFileName();
String ext = filename.substring(filename.lastIndexOf(".") + 1);
Date date = new Date();
filename = date.getTime() + "" + (int) (Math.random() * 100000) + "." + ext;
filepath += filename;
// 文件另存为
file.setCharset("gbk");
file.saveAs(filepath, SmartUpload.SAVE_VIRTUAL);
}
// 获取smartupload封装的request
req = su.getRequest();
// 获取添加新闻页面传递过来的参数
int typeId = Integer.parseInt(req.getParameter("typeId"));
String title = req.getParameter("title");
String author = req.getParameter("author");
String summary = req.getParameter("summary");
String content = req.getParameter("content");
String pic = filepath; // 获取文件上传后的路径
NewsInfo newsInfo = new NewsInfo();
newsInfo.setTypeId(typeId);
newsInfo.setNewsTitle(title);
newsInfo.setNewsAut(author);
newsInfo.setNewsSum(summary);
newsInfo.setNewsCon(content);
newsInfo.setNewsPic(pic);
newsInfo.setNewsDate(new Date());
boolean flag = newsDao.addNewsInfo(newsInfo);
if (flag) {
newsList(request, response);
} else {
request.setAttribute("error", "添加新闻失败！");
request.setAttribute("newsInfo", newsInfo);
gotoNewsAdd(request, response);
}
} catch (Exception e) {
exceptionMsg = e.getMessage();
e.printStackTrace();
request.setAttribute("error", "添加新闻失败！");
gotoNewsAdd(request, response);
}
}
// 查询新闻列表
public void newsList(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
List<NewsInfo> newsList = newsDao.queryNewsInfo();
request.setAttribute("newsList", newsList);
request.getRequestDispatcher("/admin/admin.jsp").forward(request, response);
}