1.
1 <?xml version="1.0" encoding="UTF-8"?> 2 <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 5 http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> 6 <filter> <!--定义核心Filter FilterDispatcher --> 7 <filter-name>struts2</filter-name> <!-- 定义核心Filter的名称 --> 8 <filter-class> <!--定义核心Filter的实现类 --> 9 org.apache.struts2.dispatcher.FilterDispatcher 10 </filter-class> 11 </filter> 12 <filter-mapping> 13 <filter-name>struts2</filter-name><!--核心Filter的名称 --> 14 <url-pattern>/*</url-pattern><!--使用该核心Filter过滤所有的Web请求 --> 15 </filter-mapping> 16 </web-app>
2.
1 <?xml version="1.0" encoding="UTF-8" ?><!-- XML声明 --> 2 <!DOCTYPE struts PUBLIC 3 "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" 4 "http://struts.apache.org/dtds/struts-2.1.dtd"><!-- 指定Struts 2配置文件的DTD信息 --> 5 <struts><!-- 根节点 --> 6 <constant name="struts.i18n.encoding" value="gb2312"></constant> 7 <package name="struts2" extends="jfreechart-default"> 8 <action name="addVote" class="com.sanqing.action.AddVoteAction"> 9 <result name="success">/admin/addVote.jsp</result> 10 </action> 11 <action name="showVote" class="com.sanqing.action.ShowVoteAction"> 12 <result name="success">/admin/showVote.jsp</result> 13 </action> 14 <action name="deleteVote" class="com.sanqing.action.DeleteVoteAction"> 15 <result name="success" type="chain">showVote</result> 16 </action> 17 <action name="showVoteByChannel" class="com.sanqing.action.ShowVoteByChannelAction"> 18 <result name="success">index.jsp</result> 19 <result name="input">index.jsp</result> 20 </action> 21 <action name="voteResult" class="com.sanqing.action.VoteResultAction"> 22 <result name="success" type="chart"> 23 <param name="width">400</param> 24 <param name="height">300</param> 25 </result> 26 </action> 27 <action name="doVote" class="com.sanqing.action.DoVoteAction"> 28 <result name="success" type="chain">voteResult</result> 29 <result name="input" type="chain">showVoteByChannel</result> 30 </action> 31 </package> 32 </struts>
3.jfreechart-default.xml
1 <?xml version="1.0" encoding="UTF-8" ?> 2 <!-- 3 /* 4 * $Id: struts-plugin.xml 651946 2008-04-27 13:41:38Z apetrelli $ 5 * 6 * Licensed to the Apache Software Foundation (ASF) under one 7 * or more contributor license agreements. See the NOTICE file 8 * distributed with this work for additional information 9 * regarding copyright ownership. The ASF licenses this file 10 * to you under the Apache License, Version 2.0 (the 11 * "License"); you may not use this file except in compliance 12 * with the License. You may obtain a copy of the License at 13 * 14 * http://www.apache.org/licenses/LICENSE-2.0 15 * 16 * Unless required by applicable law or agreed to in writing, 17 * software distributed under the License is distributed on an 18 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 19 * KIND, either express or implied. See the License for the 20 * specific language governing permissions and limitations 21 * under the License. 22 */ 23 --> 24 <!DOCTYPE struts PUBLIC 25 "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" 26 "http://struts.apache.org/dtds/struts-2.0.dtd"> 27 28 <struts> 29 <package name="jfreechart-default" extends="struts-default"> 30 31 <result-types> 32 <result-type name="chart" class="org.apache.struts2.dispatcher.ChartResult"> 33 <param name="height">150</param> 34 <param name="width">200</param> 35 </result-type> 36 </result-types> 37 </package> 38 39 </struts>
4.
1 package com.sanqing.util; 2 3 import java.sql.Connection; 4 import java.sql.DriverManager; 5 import java.sql.PreparedStatement; 6 import java.sql.ResultSet; 7 import java.sql.SQLException; 8 9 public class DBConnection { 10 private static final String DBDRIVER = "com.mysql.jdbc.Driver" ; //驱动类类名 11 private static final String DBURL = "jdbc:mysql://localhost:3306/db_votemanage";//连接URL 12 private static final String DBUSER = "root" ; //数据库用户名 13 private static final String DBPASSWORD = "1234"; //数据库密码 14 public static Connection getConnection(){ 15 Connection conn = null; //声明一个连接对象 16 try { 17 Class.forName(DBDRIVER); //注册驱动 18 conn = DriverManager.getConnection(DBURL,DBUSER,DBPASSWORD); //获得连接对象 19 } catch (ClassNotFoundException e) { //捕获驱动类无法找到异常 20 e.printStackTrace(); 21 } catch (SQLException e) { //捕获SQL异常 22 e.printStackTrace(); 23 } 24 return conn; 25 } 26 public static void close(Connection conn) {//关闭连接对象 27 if(conn != null) { //如果conn连接对象不为空 28 try { 29 conn.close(); //关闭conn连接对象对象 30 } catch (SQLException e) { 31 e.printStackTrace(); 32 } 33 } 34 } 35 public static void close(PreparedStatement pstmt) {//关闭预处理对象 36 if(pstmt != null) { //如果pstmt预处理对象不为空 37 try { 38 pstmt.close(); //关闭pstmt预处理对象 39 } catch (SQLException e) { 40 e.printStackTrace(); 41 } 42 } 43 } 44 public static void close(ResultSet rs) {//关闭结果集对象 45 if(rs != null) { //如果rs结果集对象不为null 46 try { 47 rs.close(); //关闭rs结果集对象 48 } catch (SQLException e) { 49 e.printStackTrace(); 50 } 51 } 52 } 53 }
5.
1 package com.sanqing.util; 2 public class Page { 3 private int everyPage; //每页显示记录数 4 private int totalCount; //总记录数 5 private int totalPage; //总页数 6 private int currentPage; //当前页 7 private int beginIndex; //查询起始点 8 private boolean hasPrePage; //是否有上一页 9 private boolean hasNextPage; //是否有下一页 10 public Page(int everyPage, int totalCount, int totalPage, 11 int currentPage,int beginIndex, boolean hasPrePage, 12 boolean hasNextPage) { //自定义构造方法 13 this.everyPage = everyPage; 14 this.totalCount = totalCount; 15 this.totalPage = totalPage; 16 this.currentPage = currentPage; 17 this.beginIndex = beginIndex; 18 this.hasPrePage = hasPrePage; 19 this.hasNextPage = hasNextPage; 20 } 21 public Page(){} //默认构造函数 22 public int getEveryPage() { //获得每页显示记录数 23 return everyPage; 24 } 25 public void setEveryPage(int everyPage) {//设置每页显示记录数 26 this.everyPage = everyPage; 27 } 28 public int getTotalCount() {//获得总记录数 29 return totalCount; 30 } 31 public void setTotalCount(int totalCount) {//设置总记录数 32 this.totalCount = totalCount; 33 } 34 public int getTotalPage() {//获得总页数 35 return totalPage; 36 } 37 public void setTotalPage(int totalPage) {//设置总页数 38 this.totalPage = totalPage; 39 } 40 public int getCurrentPage() {//获得当前页 41 return currentPage; 42 } 43 public void setCurrentPage(int currentPage) {//设置当前页 44 this.currentPage = currentPage; 45 } 46 public int getBeginIndex() {//获得查询起始点 47 return beginIndex; 48 } 49 public void setBeginIndex(int beginIndex) {//设置查询起始点 50 this.beginIndex = beginIndex; 51 } 52 public boolean isHasPrePage() {//获得是否有上一页 53 return hasPrePage; 54 } 55 public void setHasPrePage(boolean hasPrePage) {//设置是否有上一页 56 this.hasPrePage = hasPrePage; 57 } 58 public boolean isHasNextPage() {//获得是否有下一页 59 return hasNextPage; 60 } 61 public void setHasNextPage(boolean hasNextPage) {//设置是否有下一页 62 this.hasNextPage = hasNextPage; 63 } 64 }
6.
1 package com.sanqing.util; 2 /* 3 * 分页信息辅助类 4 */ 5 public class PageUtil { 6 public static Page createPage(int everyPage,int totalCount,int currentPage) {//创建分页信息对象 7 everyPage = getEveryPage(everyPage); 8 currentPage = getCurrentPage(currentPage); 9 int totalPage = getTotalPage(everyPage, totalCount); 10 int beginIndex = getBeginIndex(everyPage, currentPage); 11 boolean hasPrePage = getHasPrePage(currentPage); 12 boolean hasNextPage = getHasNextPage(totalPage, currentPage); 13 return new Page(everyPage, totalCount, totalPage, currentPage, 14 beginIndex, hasPrePage, hasNextPage); 15 } 16 public static int getEveryPage(int everyPage) { //获得每页显示记录数 17 return everyPage == 0 ? 10 : everyPage; 18 } 19 public static int getCurrentPage(int currentPage) { //获得当前页 20 return currentPage == 0 ? 1 : currentPage; 21 } 22 public static int getTotalPage(int everyPage,int totalCount) {//获得总页数 23 int totalPage = 0; 24 if(totalCount != 0 &&totalCount % everyPage == 0) { 25 totalPage = totalCount / everyPage; 26 } else { 27 totalPage = totalCount / everyPage + 1; 28 } 29 return totalPage; 30 } 31 public static int getBeginIndex(int everyPage,int currentPage) {//获得起始位置 32 return (currentPage - 1) * everyPage; 33 } 34 public static boolean getHasPrePage(int currentPage) {//获得是否有上一页 35 return currentPage == 1 ? false : true; 36 } 37 public static boolean getHasNextPage(int totalPage, int currentPage) { //获得是否有上一页 38 return currentPage == totalPage || totalPage == 0 ? false : true; 39 } 40 }