articleaction.java

数学网

//Created by MyEclipse Struts
// XSL source (default): platform:/plugin/com.genuitec.eclipse.cross.easystruts.eclipse_4.0.1/xslt/JavaClass.xsl

package math.article.controller;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Date;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.sql.DataSource;

import math.article.dao.ArticleDAO;
import math.article.model.Article;
import math.news.DAO.NewsDAO;

import org.apache.commons.beanutils.BeanUtils;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;

/**
 * MyEclipse Struts Creation date: 11-20-2006
 * 
 * XDoclet definition:
 * 
 * @struts.action parameter="ARTICLE" validate="true"
 * @struts.action-forward name="error" path="/sd_login.html"
 * @struts.action-forward name="success" path="/studentview.jsp"
 */
public class ArticleAction extends Action {

	private org.apache.commons.logging.Log __log = LogFactory.getFactory()
			.getInstance(this.getClass());

	private DataSource ds = null;

	public ActionForward execute(ActionMapping actionMapping,
			ActionForm actionForm, HttpServletRequest httpServletRequest,
			HttpServletResponse httpServletResponse) {

		ds = getDataSource(httpServletRequest);

		ActionForward myforward = null;
		String myaction = actionMapping.getParameter();
		// ds = getDataSource(httpServletRequest);
		if (isCancelled(httpServletRequest)) {
			if (__log.isInfoEnabled()) {
				__log.info(" [Article] " + actionMapping.getAttribute()
						+ " - action was cancelled");
			}
			return actionMapping.findForward("cancel");
		}

		if (__log.isInfoEnabled()) {
			__log.info(" [Article] action: " + myaction);
		}
		if ("".equalsIgnoreCase(myaction)) {
			myforward = actionMapping.findForward("failure");
		} else if ("ARTICLEADD".equalsIgnoreCase(myaction)) {
			myforward = performAdd(actionMapping, actionForm,
					httpServletRequest, httpServletResponse);
		} else if ("ARTICLELIST".equalsIgnoreCase(myaction)) {
			myforward = performList(actionMapping, actionForm,
					httpServletRequest, httpServletResponse);
		} else if ("ARTICLESHOW".equalsIgnoreCase(myaction)) {
			myforward = performShow(actionMapping, actionForm,
					httpServletRequest, httpServletResponse);
		} else if ("ARTICLEUPDATE".equalsIgnoreCase(myaction)) {
			myforward = performUpdate(actionMapping, actionForm,
					httpServletRequest, httpServletResponse);
		} else if ("ARTICLESAVE".equalsIgnoreCase(myaction)) {
			myforward = performSave(actionMapping, actionForm,
					httpServletRequest, httpServletResponse);
		} else if ("ARTICLEDELETE".equalsIgnoreCase(myaction)) {
			myforward = performDelete(actionMapping, actionForm,
					httpServletRequest, httpServletResponse);
		} else {
			myforward = actionMapping.findForward("regerror");
		}
		return myforward;

	}

	private ActionForward performAdd(ActionMapping mapping,
			ActionForm actionForm, HttpServletRequest request,
			HttpServletResponse response) {

		try {

			ArticleDAO articleDAO = new ArticleDAO(ds);

			// ��ñ?��Ϣ
			ArticleForm articleForm = (ArticleForm) actionForm;
			// ʵ��Reg;
			Article article = new Article();
			// ��RegForm�е�ֵ����reg
			BeanUtils.populate(article, BeanUtils.describe(articleForm));

			String pic_path = "";
			if (articleForm.getTheFile().getFileName() == null
					|| articleForm.getTheFile().getFileName().equalsIgnoreCase(
							"")) {
				pic_path = "";
			} else {
				if (actionForm instanceof ArticleForm) {

					ds = getDataSource(request);
					String encoding = request.getCharacterEncoding();
					if ((encoding != null)
							&& (encoding.equalsIgnoreCase("GB2312"))) {
						response.setContentType("text/html;charset=GB2312");
					}
					String Dir = "../webapps" + request.getContextPath()
							+ "/article_download";
					File dirName = new File(Dir);
					if (!dirName.exists()) {
						dirName.mkdirs();
					}

					String gs = articleForm.getGs();

					Date mydate = new Date();
					long picname = (long) mydate.getTime();

					pic_path = "article_download/" + picname + gs;

					FormFile file = articleForm.getTheFile();

					try {
						InputStream stream = file.getInputStream();
						OutputStream bos = new FileOutputStream(Dir + "/"
								+ picname + gs);
						int bytesRead = 0;
						byte[] buffer = new byte[8192];
						while ((bytesRead = stream.read(buffer, 0, 8192)) != -1) {
							bos.write(buffer, 0, bytesRead);
						}
						bos.close();

						// close the stream
						stream.close();
					} catch (FileNotFoundException fnfe) {
						return null;
					} catch (IOException ioe) {
						return null;
					}

					// destroy the temporary file created
					file.destroy();

					
				}else{
					return mapping.findForward("failure");
				}

			}
			article.setArticle_img(pic_path);
			article.setUserip(request.getRemoteHost());
			articleDAO.insert(article);
			return mapping.findForward("success");

		} catch (Exception e) {
			generalError(request, e);
			return mapping.findForward("failure");
		}

	}

	// /////////////////////////////////////////////////////////////
	private ActionForward performList(ActionMapping mapping,
			ActionForm actionForm, HttpServletRequest request,
			HttpServletResponse response) {

		try {
			HttpSession session = request.getSession();
			String condition = "";
			ArticleDAO articleDAO = new ArticleDAO(ds);
			String article1 = request.getParameter("articletype1");
			String article2 = request.getParameter("articletype2");
			int offset;
			int length = 10;
			int articletype1;
			int articletype2;
			String pageOffset = request.getParameter("pager.offset");
			if (article1 != null || article2 != null) {
				articletype1 = Integer.parseInt(article1);
				articletype2 = Integer.parseInt(article2);

				if (pageOffset == null || pageOffset.equals("")) {
					offset = 0;
					SearchForm searchForm = (SearchForm) actionForm;
					if (searchForm.getConditionid() == 1) {
						condition = "where articletitle like '%"
								+ searchForm.getCondition()
								+ "%' and  articletype1=" + articletype1
								+ " and articletype2=" + articletype2;
					} else if (searchForm.getConditionid() == 2) {
						condition = "where articlecontent like '%"
								+ searchForm.getCondition()
								+ "%' and  articletype1=" + articletype1
								+ " and articletype2=" + articletype2;
					} else if (searchForm.getConditionid() == 0) {
						if (searchForm.getCondition() == null
								|| searchForm.getCondition() == null)
							condition = "";
						else
							condition = "where articletitle like '%"
									+ searchForm.getCondition()
									+ "%' or articlecontent like '%"
									+ searchForm.getCondition()
									+ "%' and  articletype1=" + articletype1
									+ " and articletype2=" + articletype2;
					}
					session.setAttribute("CONDITION", condition);
				} else {
					offset = Integer.parseInt(pageOffset);
					condition = (String) session.getAttribute("CONDITION");
					if (condition == null) {
						condition = "";
					}
				}
				List articlelist = (List) articleDAO.list(offset, length,
						condition);
				int size = articleDAO.getSize("article", condition);
				String url = request.getContextPath() + mapping.getPath()
						+ ".do";
				String pagerHeader = math.util.Pager.generate(offset, size,
						length, url);
				request.setAttribute("pagerHeader", pagerHeader);
				request.setAttribute("LIST", articlelist);
				request.setAttribute("articletype1", articlelist);
				return mapping.findForward("presuccess");
			}
			// ����Ϊǰ̨�����б�
			else {
				if (pageOffset == null || pageOffset.equals("")) {
					offset = 0;
					SearchForm searchForm = (SearchForm) actionForm;
					if (searchForm.getConditionid() == 1) {
						condition = "where articletitle like '%"
								+ searchForm.getCondition() + "%'";
					} else if (searchForm.getConditionid() == 2) {
						condition = "where articlecontent like '%"
								+ searchForm.getCondition() + "%'";
					} else if (searchForm.getConditionid() == 0) {