基于SSH框架的IT技术学习交流论坛系统设计源码

/** * */ package com.phn.action; import java.util.ArrayList; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.apache.struts2.ServletActionContext; import com.phn.bean.Comments; import com.phn.bean.News; import com.phn.bean.Pages; import com.phn.bean.Topics; import com.phn.bean.Types; import com.phn.bean.Users; import com.phn.service.TopicService; /** * @author 潘海南 * @email phnlove@163.com */ public class TopicAction { private TopicService topicService; private Topics topic; private Types ttype; private News tnew; private Pages pageBean; private int nowPage = 1; private int listFloor[]; private int comFlag = 0; private String content; private List<Topics> listTopic; private List<Comments> listComment; HttpSession session = ServletActionContext.getRequest().getSession(); HttpServletResponse response = ServletActionContext.getResponse(); HttpServletRequest request = ServletActionContext.getRequest(); public String add() throws Exception { Users user = (Users) session.getAttribute("tu"); boolean flag = this.topicService.add(topic, user, response, request, ttype); if (flag != true) { return "topic_add_no"; } return "topic_add_ok"; } /** * 去往指定的帖子，默认只显示未被删除的评论 * * @return * @throws Exception */ public String goTopic() throws Exception { Topics top = this.topicService.find(topic.getId()); if(top == null){ return "error"; } List<Comments> list = new ArrayList<Comments>(); List<Comments> listTemp = new ArrayList<Comments>(); listTemp.addAll(top.getTopicComments()); if (this.comFlag == 0) { for (int i = 0; i < listTemp.size(); i++) { if (listTemp.get(i).getStatus() == 0) { list.add(listTemp.get(i)); } } } else if (this.comFlag == 2) { for (int i = 0; i < listTemp.size(); i++) { if (listTemp.get(i).getCommentsUser().getId() == top .getTopicsUser().getId()) { list.add(listTemp.get(i)); } } } else if (this.comFlag == 3) { for (int i = 0; i < listTemp.size(); i++) { if (listTemp.get(i).getIntegral() > 0) { list.add(listTemp.get(i)); } } } else { list = listTemp; } /* 先将list按楼层排序 */ if (list.size() > 1) { this.QuickSort(list, 0, list.size() - 1); } this.nowPage = (this.nowPage == 0) ? 1 : this.nowPage; /* 再将list按要求分页 */ this.pageBean = this.QueryCommentsForPage(10, nowPage, list); this.listComment = this.pageBean.getListComments(); this.topic = top; return "topic_go_ok"; } /** * 将从指定的topic里面获取到的comment进行按floor快速排序 * * @param list * @param first * @param end */ public void QuickSort(List<Comments> list, int first, int end) { /* 初始化各变量 */ int i = first; int j = end; Comments temp = list.get(i); // 用子表的第一个记录作为枢轴记录 while (i < j) { // 从表的两端交替向中间扫描 while (i < j && temp.getFloor() <= list.get(j).getFloor()) j--; list.set(i, list.get(j)); // 采用替换而不是交换的方式进行操作 while (i < j && list.get(i).getFloor() <= temp.getFloor()) i++; list.set(j, list.get(i)); // 采用替换而不是交换的方式进行操作 } list.set(i, temp); // 将枢轴数值替换回L->R[i] if (first < i - 1) QuickSort(list, first, i - 1); // 对低子表进行递归 if (i + 1 < end) QuickSort(list, i + 1, end); // 对高子表进行递归 } /** * 将从指定的topic里面获取到的comment进行分页处理 * * @return */ public Pages QueryCommentsForPage(int pageSize, int nowPage, List<Comments> listComment) { int allRecords = listComment.size(); int totalPage = Pages.calculateTotalPage(pageSize, allRecords);// 总页数 final int currentoffset = Pages.currentPage_startRecord(pageSize, nowPage);// 当前页的开始记录 final int length = pageSize; final int currentPage = Pages.judgeCurrentPage(nowPage); int toIndex = 0; if (allRecords >= length + currentoffset) { toIndex = currentoffset + length; } else { toIndex = allRecords; } List<Comments> subListComment = listComment.subList(currentoffset, toIndex); Pages pagebean = new Pages(); pagebean.setPageSize(pageSize); pagebean.setAllRecords(allRecords); pagebean.setCurrentPage(currentPage); pagebean.setTotalPages(totalPage); pagebean.setListComments(subListComment); pagebean.init(); return pagebean; } public String GoEnd() throws Exception { this.topic = this.topicService.find(topic.getId()); List<Comments> list = new ArrayList<Comments>(); list.addAll(this.topic.getTopicComments()); /* 先将list按楼层排序 */ if (list.size() > 1) { this.QuickSort(list, 0, list.size() - 1); } this.listComment = list; return "topic_goEnd_ok"; } public String EndTopic() throws Exception { Users user = (Users) session.getAttribute("tu"); String listfloor = request.getParameter("listFloor"); String[] str = listfloor.split(","); int[] listFloor = new int[str.length]; for (int i = 0; i < listFloor.length; i++) { listFloor[i] = Integer.parseInt(str[i]); } Topics top = this.topicService.find(topic.getId()); List<Comments> list = new ArrayList<Comments>(); List<Comments> listTemp = new ArrayList<Comments>(); listTemp.addAll(top.getTopicComments()); for (int i = 0; i < listTemp.size(); i++) { int m = listTemp.get(i).getCommentsUser().getId(); int n = top.getTopicsUser().getId(); if (m != n) { list.add(listTemp.get(i)); } } /* 先将list按楼层排序 */ if (list.size() > 1) { this.QuickSort(list, 0, list.size() - 1); } this.listComment = list; this.topicService.endTopic(listFloor, listComment); user.setIntegral(user.getIntegral()+top.getIntegral()*20/100); top.setTopicsUser(user); top.setStatus(1); this.topicService.update(top); return "topic_end_ok"; } public String getIndexHotTopic() throws Exception { this.listTopic = this.topicService.getIndexHotTopic(10); return "topic_getIndexHot_ok"; } public String getIndexNiceTopic() throws Exception { this.listTopic = this.topicService.getIndexNiceTopic(10); return "topic_getIndexNice_ok"; } public String getIndexFreshTopic() throws Exception { this.listTopic = this.topicService.getIndexFreshTopic(10); return "topic_getIndexFresh_ok"; } public String getAllTopic() throws Exception { this.pageBean = this.topicService.getAllForPages(10, nowPage); this.listTopic = pageBean.getListTopics(); return "topic_getALL_ok"; } public String GetHotTopic() throws Exception { this.pageBean = this.topicService.getHotForPages(10, nowPage); this.listTopic = pageBean.getListTopics(); return "topic_getHot_ok"; } public String GetNiceTopic() throws Exception { this.pageBean = this.topicService.getNiceForPages(10, nowPage); this.listTopic = pageBean.getListTopics(); return "topic_getNice_ok"; } public String Search() throws Exception { this.pageBean = this.topicService.search(content, 5, nowPage); this.listTopic = pageBean.getListTopics(); System.out.println(listTopic); return "topic_search_ok"; } public String goTopicByNews() throws Exception { Users user = (Users) session.getAttribute("tu"); this.topicService.updateNews(this.tnew, user); Topics top = this.topicService.find(topic.getId()); List<Comments> list = new ArrayList<Comments>(); List<Comments> listTemp = new ArrayList<Comments>(); listTemp.addAll(top.getTopicComments()); if (this.comFlag == 0) { for (int i = 0; i < listTemp.size(); i++) { if (listTemp.get(i).getStatus() == 0) { list.add(listTemp.get(i)); } } } else if (this.comFlag == 2) { for (int i = 0; i < listTemp.size(); i++) { if (listTemp.get(i).getCommentsUser().getId() == top .getTopicsUser().getId()) { list.add(listTemp.get