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一、系统介绍
1.开发环境
开发工具:IDEA2018.2
JDK版本:jdk1.8
Mysql版本:8.0.13
2.技术选型
1.后端:使用Java+SSH进行开发,使用过滤器来验证用户是否登录,使用MVC进行分层。
2.数据库:使用Hibernate作为数据持久化框架。
3.前端:使用Bootstrap作为前端框架来开发,使用到jstl来遍历数据。jsp来展示页面。
3.系统功能
1.学生
1.在线开始
2.成绩查询
3.修改密码
2.管理员
1.学生信息管理
考生信息的增删改查
2.考试成绩查询
3.试卷信息管理
试卷的增删改查
4.试题信息管理
试题信息的增删改查
4.数据库
/*
Navicat Premium Data Transfer
Source Server : Mysql
Source Server Type : MySQL
Source Server Version : 80013
Source Host : localhost:3306
Source Schema : ssh_online_exam
Target Server Type : MySQL
Target Server Version : 80013
File Encoding : 65001
Date: 11/07/2021 02:00:10
*/
SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
-- ----------------------------
-- Table structure for t_exam
-- ----------------------------
DROP TABLE IF EXISTS `t_exam`;
CREATE TABLE `t_exam` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`examDate` datetime(0) NULL DEFAULT NULL,
`moreScore` int(11) NOT NULL,
`score` int(11) NOT NULL,
`singleScore` int(11) NOT NULL,
`paperId` int(11) NULL DEFAULT NULL,
`studentId` varchar(40) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
PRIMARY KEY (`id`) USING BTREE,
INDEX `FK_l14kkd2w86mpy8v2snw37hskx`(`paperId`) USING BTREE,
INDEX `FK_sl2v4qucyp0qe9yvnk6icka10`(`studentId`) USING BTREE,
CONSTRAINT `FK_l14kkd2w86mpy8v2snw37hskx` FOREIGN KEY (`paperId`) REFERENCES `t_paper` (`id`) ON DELETE CASCADE ON UPDATE CASCADE,
CONSTRAINT `FK_sl2v4qucyp0qe9yvnk6icka10` FOREIGN KEY (`studentId`) REFERENCES `t_student` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE = InnoDB AUTO_INCREMENT = 25 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of t_exam
-- ----------------------------
INSERT INTO `t_exam` VALUES (25, '2021-06-30 15:42:37', 0, 40, 40, 1, 'JS1001');
-- ----------------------------
-- Table structure for t_manager
-- ----------------------------
DROP TABLE IF EXISTS `t_manager`;
CREATE TABLE `t_manager` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`password` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`userName` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of t_manager
-- ----------------------------
INSERT INTO `t_manager` VALUES (1, '管理员', 'admin', 'admin');
-- ----------------------------
-- Table structure for t_paper
-- ----------------------------
DROP TABLE IF EXISTS `t_paper`;
CREATE TABLE `t_paper` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`joinDate` datetime(0) NULL DEFAULT NULL,
`paperName` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 6 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of t_paper
-- ----------------------------
INSERT INTO `t_paper` VALUES (1, '2014-01-01 00:00:00', 'Java试卷一');
INSERT INTO `t_paper` VALUES (2, '2014-02-01 00:00:00', '语文试卷二');
INSERT INTO `t_paper` VALUES (3, '2014-01-01 00:00:00', '数学试卷一');
-- ----------------------------
-- Table structure for t_question
-- ----------------------------
DROP TABLE IF EXISTS `t_question`;
CREATE TABLE `t_question` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`answer` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`joinTime` datetime(0) NULL DEFAULT NULL,
`optionA` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`optionB` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`optionC` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`optionD` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`subject` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`type` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`paperId` int(11) NULL DEFAULT NULL,
PRIMARY KEY (`id`) USING BTREE,
INDEX `FK_ebouwob97chiilpjmc6gtgwkw`(`paperId`) USING BTREE,
CONSTRAINT `FK_ebouwob97chiilpjmc6gtgwkw` FOREIGN KEY (`paperId`) REFERENCES `t_paper` (`id`) ON DELETE RESTRICT ON UPDATE RESTRICT
) ENGINE = InnoDB AUTO_INCREMENT = 21 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of t_question
-- ----------------------------
INSERT INTO `t_question` VALUES (1, 'D', '2014-01-01 00:00:00', 'A. a1', 'B. $1', 'C. _1', 'D .11', '下列不可作为java语言修饰符的是?', '1', 1);
INSERT INTO `t_question` VALUES (2, 'A', '2014-01-01 00:00:00', 'A. a1.java', 'B. a.class', 'C. a1', 'D. 都可以', '有一段java应用程序,它的主类名是a1,那么保存 它的源文件名可以是?', '1', 1);
INSERT INTO `t_question` VALUES (3, 'A,B', '2014-01-01 00:00:00', 'A. String []a', 'B. String a[]', 'C. char a[][]', 'D. String a[10]', '下面正确声明一个一维数组的是?', '2', 1);
INSERT INTO `t_question` VALUES (4, 'A,D', '2014-01-01 00:00:00', 'A. 在java中只允许单继承。', 'B. 在java中一个类只能实现一个接口。', 'C. 在java中一个类不能同时继承一个类和实现一个接口。', 'D. java的单一继承使代码更可靠。', '下面关于继承的叙述哪些是正确的?', '2', 1);
INSERT INTO `t_question` VALUES (5, 'C', '2014-01-01 00:00:00', 'A. 一个子类可以有多个父类,一个父类也可以有多个子类', 'B. 一个子类可以有多个父类,但一个父类只可以有一个子类', 'C. 一个子类可以有一个父类,但一个父类可以有多个子类', 'D. 上述说法都不对', '在Java中?', '1', 1);
INSERT INTO `t_question` VALUES (6, 'A,D', '2014-01-01 00:00:00', 'A. 包的声明必须是源文件的第一句代码。', 'B. 包的声明必须紧跟在import语句的后面。', 'C. 只有公共类才能放在包中。', 'D. 可以将多个源文件中的类放在同一个包中。', '可以将多个源文件中的类放在同一个包中?', '2', 1);
INSERT INTO `t_question` VALUES (7, 'C', '2014-01-01 00:00:00', 'A. Java是跨平台的编程语言', 'B. Java支持分布式计算', 'C. Java是面向过程的编程语言', 'D. Java是面向对象的编程语言', '下列关于Java语言的特点,描述错误的是?', '1', 1);
INSERT INTO `t_question` VALUES (21, 'D', '2021-06-29 16:00:00', '1', '2', '3', '4', 'Java基础类有几个?', '1', 1);
-- ----------------------------
-- Table structure for t_student
-- ----------------------------
DROP TABLE IF EXISTS `t_student`;
CREATE TABLE `t_student` (
`id` varchar(40) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
`cardNo` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`name` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`password` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`prefession` varchar(40) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`sex` varchar(5) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of t_student
-- ----------------------------
INSERT INTO `t_student` VALUES ('JS1001', '1001', '张三', '123456', '计算机科学', '男');
INSERT INTO `t_student` VALUES ('JS1002', '1002', '李四', '123456', '软件工程', '男');
INSERT INTO `t_student` VALUES ('JS1003', '1003', '王五', '123456', '网络攻防', '女');
SET FOREIGN_KEY_CHECKS = 1;
5.工程截图
二、系统展示
1.学生-登录页面
2.学生-主页面
3.学生-在线考试
4.学生-成绩查询
5.学生-修改密码
6.管理员-登录页面
7.管理员-主页面
8.管理员-考生信息管理
9.管理员-考生成绩查询
10.管理员-试卷管理
11.管理员-题目管理
三、部分代码
ExamAction
package com.java.yzl.action;
//考试Action类
import com.java.yzl.actionInter.ExamActionInter;
import com.java.yzl.bean.Exam;
import com.java.yzl.bean.PageBean;
import com.java.yzl.bean.Question;
import com.java.yzl.dao.ExamDao;
import com.java.yzl.dao.QuestionDao;
import com.java.yzl.util.PageUtil;
import com.java.yzl.util.PropertiesUtil;
import com.java.yzl.util.StringUtil;
import com.opensymphony.xwork2.ActionSupport;
import org.apache.struts2.interceptor.ServletRequestAware;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.*;
import java.util.Map.Entry;
public class ExamAction extends ActionSupport implements ServletRequestAware, ExamActionInter {
private static final long serialVersionUID = 1L;
private ExamDao examDao = new ExamDao();
private QuestionDao questionDao = new QuestionDao();
private HttpServletRequest request;
private String mainPage;
private Exam exam;
private Exam s_exam;
private List<Exam> examList;
private String page;
private int total;
private String pageCode;
public String getMainPage() {
return mainPage;
}
public void setMainPage(String mainPage) {
this.mainPage = mainPage;
}
public Exam getExam() {
return exam;
}
public void setExam(Exam exam) {
this.exam = exam;
}
public List<Exam> getExamList() {
return examList;
}
public void setExamList(List<Exam> examList) {
this.examList = examList;
}
public Exam getS_exam() {
return s_exam;
}
public void setS_exam(Exam s_exam) {
this.s_exam = s_exam;
}
public String getPage() {
return page;
}
public void setPage(String page) {
this.page = page;
}
public int getTotal() {
return total;
}
public void setTotal(int total) {
this.total = total;
}
public String getPageCode() {
return pageCode;
}
public void setPageCode(String pageCode) {
this.pageCode = pageCode;
}
/**
* 计算/添加考试成绩
*
* @return
* @throws Exception
*/
public String add() throws Exception {
Map<String, String[]> keyMap = new HashMap<String, String[]>();
keyMap = request.getParameterMap();
Iterator<Entry<String, String[]>> it2 = keyMap.entrySet().iterator();
int totalScore = 0;
int singleScore = 0;
int moreScore = 0;
while (it2.hasNext()) {
Entry<String, String[]> entry = it2.next();
String keyStr = entry.getKey();
String values[] = entry.getValue();
String key;
String value = "";
if (keyStr.equals("exam.student.id") || keyStr.equals("exam.paper.id")) {
continue;
}
if (keyStr.split("-")[1].equals("r")) { // 单选
key = keyStr.split("-")[2];
value = values[0];
singleScore += this.calScore(key, value, "1");
} else { // 多选
key = keyStr.split("-")[2];
for (String s : values) {
value += s + ",";
}
value = value.substring(0, value.length() - 1);
moreScore += this.calScore(key, value, "2");
}
}
totalScore = singleScore + moreScore;
exam.setSingleScore(singleScore);
exam.setMoreScore(moreScore);
exam.setScore(totalScore);
exam.setExamDate(new Date());
examDao.saveExam(exam);
mainPage = "exam/examResult.jsp";
return SUCCESS;
}
/**
* 计算每道题目的得分
*
* @param questionId
* @param userAnswer
* @return
*/
private int calScore(String questionId, String userAnswer, String type) throws Exception {
Question question = questionDao.getQuestion(questionId);
if (userAnswer.equals(question.getAnswer())) {
if ("1".equals(type)) {
return 20;
} else {
return 30;
}
} else {
return 0;
}
}
/**
* 获取考试成绩
*
* @return
* @throws Exception
*/
public String getExams() throws Exception {
examList = examDao.getExams(s_exam, null);
mainPage = "exam/myExam.jsp";
return SUCCESS;
}
/**
* 获取所有考试成绩
*
* @return
* @throws Exception
*/
public String examList() throws Exception {
HttpSession session = request.getSession();
if (StringUtil.isEmpty(page)) {
page = "1";
}
if (s_exam != null) {
session.setAttribute("s_exam", s_exam);
} else {
Object o = session.getAttribute("s_exam");
if (o != null) {
s_exam = (Exam) o;
} else {
s_exam = new Exam();
}
}
PageBean pageBean = new PageBean(Integer.parseInt(page), Integer.parseInt(PropertiesUtil.getValue("pageSize")));
examList = examDao.getExams(s_exam, pageBean);
total = examDao.examCount(s_exam);
pageCode = PageUtil.genPagation(request.getContextPath() + "/exam!examList", total, Integer.parseInt(page), Integer.parseInt(PropertiesUtil.getValue("pageSize")));
mainPage = "exam/examList.jsp";
return SUCCESS;
}
public void setServletRequest(HttpServletRequest request) {
this.request = request;
}
}
ManagerAction
package com.java.yzl.action;
import com.java.yzl.bean.Manager;
import com.java.yzl.dao.ManagerDao;
import com.opensymphony.xwork2.ActionSupport;
import org.apache.struts2.interceptor.ServletRequestAware;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
public class ManagerAction extends ActionSupport implements ServletRequestAware {
/**
*
*/
private static final long serialVersionUID = 1L;
private HttpServletRequest request;
private ManagerDao managerDao = new ManagerDao();
private Manager manager;
private String error;
public Manager getManager() {
return manager;
}
public void setManager(Manager manager) {
this.manager = manager;
}
public String getError() {
return error;
}
public void setError(String error) {
this.error = error;
}
/**
* 登录验证
*
* @return
* @throws Exception
*/
public String login() throws Exception {
HttpSession session = request.getSession();
Manager currentUser = managerDao.login(manager);
if (currentUser == null) {
error = "用户名或者密码错误!";
return ERROR;
} else {
session.setAttribute("currentUser", currentUser);
return SUCCESS;
}
}
/**
* 注销用户
*
* @throws Exception
*/
public String logout() throws Exception {
request.getSession().invalidate();
return "logout";
}
public void setServletRequest(HttpServletRequest request) {
this.request = request;
}
}
PaperAction
package com.java.yzl.action;
import com.java.yzl.bean.Paper;
import com.java.yzl.bean.Question;
import com.java.yzl.dao.PaperDao;
import com.java.yzl.dao.QuestionDao;
import com.java.yzl.util.ResponseUtil;
import com.java.yzl.util.StringUtil;
import com.opensymphony.xwork2.ActionSupport;
import net.sf.json.JSONObject;
import org.apache.struts2.ServletActionContext;
import java.util.*;
/**
* 试卷Action类
*
* @author Administrator
*/
public class PaperAction extends ActionSupport {
/**
*
*/
private static final long serialVersionUID = 1L;
private PaperDao paperDao = new PaperDao();
private QuestionDao questionDao = new QuestionDao();
private String mainPage;
private String paperId;
private List<Paper> paperList = new ArrayList<Paper>();
private List<Question> squestionList = new ArrayList<Question>();
private List<Question> mquestionList = new ArrayList<Question>();
private String title; // 标题
private Paper paper;
public List<Paper> getPaperList() {
return paperList;
}
public void setPaperList(List<Paper> paperList) {
this.paperList = paperList;
}
public List<Question> getSquestionList() {
return squestionList;
}
public void setSquestionList(List<Question> squestionList) {
this.squestionList = squestionList;
}
public List<Question> getMquestionList() {
return mquestionList;
}
public void setMquestionList(List<Question> mquestionList) {
this.mquestionList = mquestionList;
}
public Paper getPaper() {
return paper;
}
public void setPaper(Paper paper) {
this.paper = paper;
}
public String getPaperId() {
return paperId;
}
public void setPaperId(String paperId) {
this.paperId = paperId;
}
public String getMainPage() {
return mainPage;
}
public void setMainPage(String mainPage) {
this.mainPage = mainPage;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
/**
* 获取所有试卷
*
* @return
* @throws Exception
*/
public String list() throws Exception {
paperList = paperDao.getPapers();
mainPage = "exam/selectPaper.jsp";
return SUCCESS;
}
/**
* 获取所有试卷(管理)
*
* @return
* @throws Exception
*/
public String paperList() throws Exception {
paperList = paperDao.getPapers();
mainPage = "paper/paperList.jsp";
return SUCCESS;
}
/**
* 通过id获取试卷实体
*
* @return
* @throws Exception
*/
public String getPaperById() throws Exception {
paper = paperDao.getPaper(paperId);
mainPage = "paper/paperSave.jsp";
return SUCCESS;
}
/**
* 保存预操作
*
* @return
* @throws Exception
*/
public String preSave() throws Exception {
if (StringUtil.isNotEmpty(paperId)) {
paper = paperDao.getPaper(paperId);
title = "修改试卷";
} else {
title = "添加试卷";
}
mainPage = "paper/paperSave.jsp";
return SUCCESS;
}
/**
* 保存试卷
*
* @return
* @throws Exception
*/
public String savePaper() throws Exception {
if (StringUtil.isNotEmpty(paperId)) {
paper.setId(Integer.parseInt(paperId));
} else {
paper.setJoinDate(new Date());
}
paperDao.savePaper(paper);
return "save";
}
/**
* 删除试卷
*
* @return
* @throws Exception
*/
public String deletePaper() throws Exception {
paper = paperDao.getPaper(paperId);
JSONObject resultJson = new JSONObject();
if (questionDao.existQuestionByPaperId(paperId)) {
resultJson.put("error", "试卷下面有题目,不能删除");
} else {
paperDao.paperDelete(paper);
resultJson.put("success", true);
}
ResponseUtil.write(resultJson, ServletActionContext.getResponse());
return null;
}
/**
* 获取指定试卷
*
* @return
* @throws Exception
*/
public String getDetailPaper() throws Exception {
paper = paperDao.getPaper(paperId);
Set<Question> questionList = paper.getQuestions();
Iterator<Question> it = questionList.iterator();
while (it.hasNext()) {
Question q = it.next();
if ("1".equals(q.getType())) {
squestionList.add(q);
} else {
mquestionList.add(q);
}
}
squestionList = this.getRandomQuestion(squestionList, 3);
mquestionList = this.getRandomQuestion(mquestionList, 2);
mainPage = "exam/paper.jsp";
return SUCCESS;
}
/**
* 获取随机试题
*
* @param questionList
* @param num
* @return
*/
private List<Question> getRandomQuestion(List<Question> questionList, int num) {
List<Question> resultList = new ArrayList<Question>();
Random random = new Random();
if (num > 0) {
for (int i = 1; i <= num; i++) {
int n = random.nextInt(questionList.size());
Question q = questionList.get(n);
if (resultList.contains(q)) {
i--;
} else {
resultList.add(questionList.get(n));
}
}
}
return resultList;
}
}
QuestionAction
package com.java.yzl.action;
import com.java.yzl.bean.PageBean;
import com.java.yzl.bean.Paper;
import com.java.yzl.bean.Question;
import com.java.yzl.dao.PaperDao;
import com.java.yzl.dao.QuestionDao;
import com.java.yzl.util.PageUtil;
import com.java.yzl.util.PropertiesUtil;
import com.java.yzl.util.ResponseUtil;
import com.java.yzl.util.StringUtil;
import com.opensymphony.xwork2.ActionSupport;
import net.sf.json.JSONObject;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.ServletRequestAware;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.List;
public class QuestionAction extends ActionSupport implements ServletRequestAware {
/**
*
*/
private static final long serialVersionUID = 1L;
private HttpServletRequest request;
private QuestionDao questionDao = new QuestionDao();
private PaperDao paperDao = new PaperDao();
private List<Question> questionList;
private List<Paper> paperList;
private String mainPage;
private String questionId;
private Question question;
private String title;
private String page;
private int total;
private String pageCode;
private Question s_question;
public List<Paper> getPaperList() {
return paperList;
}
public void setPaperList(List<Paper> paperList) {
this.paperList = paperList;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public List<Question> getQuestionList() {
return questionList;
}
public void setQuestionList(List<Question> questionList) {
this.questionList = questionList;
}
public String getMainPage() {
return mainPage;
}
public void setMainPage(String mainPage) {
this.mainPage = mainPage;
}
public String getPage() {
return page;
}
public void setPage(String page) {
this.page = page;
}
public int getTotal() {
return total;
}
public void setTotal(int total) {
this.total = total;
}
public String getPageCode() {
return pageCode;
}
public void setPageCode(String pageCode) {
this.pageCode = pageCode;
}
public Question getS_question() {
return s_question;
}
public void setS_question(Question s_question) {
this.s_question = s_question;
}
public String getQuestionId() {
return questionId;
}
public void setQuestionId(String questionId) {
this.questionId = questionId;
}
public Question getQuestion() {
return question;
}
public void setQuestion(Question question) {
this.question = question;
}
/**
* 查询试题信息
*
* @return
* @throws Exception
*/
public String list() throws Exception {
HttpSession session = request.getSession();
if (StringUtil.isEmpty(page)) {
page = "1";
}
if (s_question != null) {
session.setAttribute("s_question", s_question);
} else {
Object o = session.getAttribute("s_question");
if (o != null) {
s_question = (Question) o;
} else {
s_question = new Question();
}
}
PageBean pageBean = new PageBean(Integer.parseInt(page), Integer.parseInt(PropertiesUtil.getValue("pageSize")));
questionList = questionDao.getQuestions(s_question, pageBean);
total = questionDao.questionCount(s_question);
pageCode = PageUtil.genPagation(request.getContextPath() + "/question!list", total, Integer.parseInt(page), Integer.parseInt(PropertiesUtil.getValue("pageSize")));
mainPage = "question/questionList.jsp";
return SUCCESS;
}
/**
* 通过id获取试题
*
* @return
* @throws Exception
*/
public String getQuestionById() throws Exception {
question = questionDao.getQuestion(questionId);
mainPage = "question/questionShow.jsp";
return SUCCESS;
}
/**
* 预编辑操作
*
* @return
* @throws Exception
*/
public String preSave() throws Exception {
paperList = paperDao.getPapers();
if (StringUtil.isNotEmpty(questionId)) {
question = questionDao.getQuestion(questionId);
title = "修改试题信息";
} else {
title = "添加试题信息";
}
mainPage = "question/questionSave.jsp";
return SUCCESS;
}
/**
* 删除试题
*
* @return
* @throws Exception
*/
public String delete() throws Exception {
question = questionDao.getQuestion(questionId);
questionDao.deleteQuestion(question);
JSONObject resultJson = new JSONObject();
resultJson.put("success", true);
ResponseUtil.write(resultJson, ServletActionContext.getResponse());
return null;
}
/**
* 保存试题
*
* @return
* @throws Exception
*/
public String saveQuestion() throws Exception {
if (StringUtil.isNotEmpty(questionId)) {
question.setId(Integer.parseInt(questionId));
}
questionDao.saveQuestion(question);
return "save";
}
public void setServletRequest(HttpServletRequest request) {
this.request = request;
}
}
StudentAction
package com.java.yzl.action;
import com.java.yzl.bean.PageBean;
import com.java.yzl.bean.Student;
import com.java.yzl.dao.StudentDao;
import com.java.yzl.util.*;
import com.opensymphony.xwork2.ActionSupport;
import net.sf.json.JSONObject;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.ServletRequestAware;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.List;
/**
* 学生Action类
*
* @author Administrator
*/
public class StudentAction extends ActionSupport implements ServletRequestAware {
/**
*
*/
private static final long serialVersionUID = 1L;
private StudentDao studentDao = new StudentDao();
private HttpServletRequest request;
private String mainPage;
private Student student;
private String error;
private String page;
private int total;
private String pageCode;
private List<Student> studentList;
private Student s_student;
private String id; // 学生编号
private String title; // 标题
public Student getStudent() {
return student;
}
public void setStudent(Student student) {
this.student = student;
}
public String getError() {
return error;
}
public void setError(String error) {
this.error = error;
}
public String getMainPage() {
return mainPage;
}
public void setMainPage(String mainPage) {
this.mainPage = mainPage;
}
public String getPageCode() {
return pageCode;
}
public void setPageCode(String pageCode) {
this.pageCode = pageCode;
}
public int getTotal() {
return total;
}
public void setTotal(int total) {
this.total = total;
}
public String getPage() {
return page;
}
public void setPage(String page) {
this.page = page;
}
public Student getS_student() {
return s_student;
}
public void setS_student(Student s_student) {
this.s_student = s_student;
}
public List<Student> getStudentList() {
return studentList;
}
public void setStudentList(List<Student> studentList) {
this.studentList = studentList;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
/**
* 登录验证
*
* @return
* @throws Exception
*/
public String login() throws Exception {
HttpSession session = request.getSession();
Student currentUser = studentDao.login(student);
if (currentUser == null) {
error = "准考证号或者密码错误!";
return ERROR;
} else {
session.setAttribute("currentUser", currentUser);
return SUCCESS;
}
}
/**
* 修改密码预操作
*
* @return
* @throws Exception
*/
public String preUpdatePassword() throws Exception {
mainPage = "student/updatePassword.jsp";
return SUCCESS;
}
/**
* 修改密码
*
* @return
* @throws Exception
*/
public String updatePassword() throws Exception {
Student s = studentDao.getStudentById(student.getId());
s.setPassword(student.getPassword());
studentDao.saveStudent(s);
mainPage = "student/updateSuccess.jsp";
return SUCCESS;
}
/**
* 查询学生信息
*
* @return
* @throws Exception
*/
public String list() throws Exception {
HttpSession session = request.getSession();
if (StringUtil.isEmpty(page)) {
page = "1";
}
if (s_student != null) {
session.setAttribute("s_student", s_student);
} else {
Object o = session.getAttribute("s_student");
if (o != null) {
s_student = (Student) o;
} else {
s_student = new Student();
}
}
PageBean pageBean = new PageBean(Integer.parseInt(page), Integer.parseInt(PropertiesUtil.getValue("pageSize")));
studentList = studentDao.getStudents(s_student, pageBean);
total = studentDao.studentCount(s_student);
pageCode = PageUtil.genPagation(request.getContextPath() + "/student!list", total, Integer.parseInt(page), Integer.parseInt(PropertiesUtil.getValue("pageSize")));
mainPage = "student/studentList.jsp";
return SUCCESS;
}
/**
* 获取学生
*
* @return
* @throws Exception
*/
public String getStudentById() throws Exception {
student = studentDao.getStudent(id);
mainPage = "student/studentSave.jsp";
return SUCCESS;
}
/**
* 保存学生
*
* @return
* @throws Exception
*/
public String saveStudent() throws Exception {
if (StringUtil.isEmpty(student.getId())) {
student.setId("JS" + DateUtil.getCurrentDateStr());
}
studentDao.saveStudent(student);
return "save";
}
/**
* 删除学生
*
* @return
* @throws Exception
*/
public String deleteStudent() throws Exception {
student = studentDao.getStudent(id);
studentDao.studentDelete(student);
JSONObject resultJson = new JSONObject();
resultJson.put("success", true);
ResponseUtil.write(resultJson, ServletActionContext.getResponse());
return null;
}
/**
* 预添加操作
*
* @return
* @throws Exception
*/
public String preSave() throws Exception {
if (StringUtil.isNotEmpty(id)) {
student = studentDao.getStudent(id);
title = "修改学生信息";
} else {
title = "添加学生信息";
}
mainPage = "student/studentSave.jsp";
return SUCCESS;
}
/**
* 注销用户
*
* @throws Exception
*/
public String logout() throws Exception {
request.getSession().invalidate();
return "logout";
}
public void setServletRequest(HttpServletRequest request) {
this.request = request;
}
}
ExamDao
package com.java.yzl.dao;
import com.java.yzl.bean.Exam;
import com.java.yzl.bean.PageBean;
import com.java.yzl.daoInter.ExamDaoInter;
import com.java.yzl.util.HibernateUtil;
import com.java.yzl.util.StringUtil;
import org.hibernate.Query;
import org.hibernate.Session;
import java.math.BigInteger;
import java.util.List;
public class ExamDao implements ExamDaoInter {
// 保存考试信息
public void saveExam(Exam exam) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.merge(exam);
session.getTransaction().commit();
}
//获取考试信息
public List<Exam> getExams(Exam s_exam, PageBean pageBean) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
StringBuffer hql = new StringBuffer("from Exam exam");
if (s_exam.getStudent() != null && StringUtil.isNotEmpty(s_exam.getStudent().getId())) {
hql.append(" and exam.student.id like '%" + s_exam.getStudent().getId() + "%'");
}
if (s_exam.getStudent() != null && StringUtil.isNotEmpty(s_exam.getStudent().getName())) {
hql.append(" and exam.student.name like '%" + s_exam.getStudent().getName() + "%'");
}
Query query = session.createQuery(hql.toString().replaceFirst("and", "where"));
if (pageBean != null) {
query.setFirstResult(pageBean.getStart());
query.setMaxResults(pageBean.getPageSize());
}
@SuppressWarnings("unchecked")
List<Exam> examList = (List<Exam>) query.list();
session.getTransaction().commit();
return examList;
}
//查询考试信息记录数
public int examCount(Exam s_exam) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
StringBuffer sql = new StringBuffer("select count(*) from t_exam t1 ,t_student t2 where t1.studentId=t2.id ");
if (s_exam.getStudent() != null && StringUtil.isNotEmpty(s_exam.getStudent().getId())) {
sql.append(" and t2.id like '%" + s_exam.getStudent().getId() + "%'");
}
if (s_exam.getStudent() != null && StringUtil.isNotEmpty(s_exam.getStudent().getName())) {
sql.append(" and t2.name like '%" + s_exam.getStudent().getName() + "%'");
}
Query query = session.createSQLQuery(sql.toString());
int count = ((BigInteger) query.uniqueResult()).intValue();
session.getTransaction().commit();
return count;
}
}
ManagerDao
package com.java.yzl.dao;
import com.java.yzl.bean.Manager;
import com.java.yzl.daoInter.ManagerDaoInter;
import com.java.yzl.util.HibernateUtil;
import org.hibernate.Query;
import org.hibernate.Session;
public class ManagerDao implements ManagerDaoInter {
//管理员登录验证
public Manager login(Manager manager) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
Query query = session.createQuery("from Manager as m where m.userName=:userName and m.password=:password ");
query.setString("userName", manager.getUserName());
query.setString("password", manager.getPassword());
Manager resultManager = (Manager) query.uniqueResult();
session.getTransaction().commit();
return resultManager;
}
}
PaperDao
package com.java.yzl.dao;
import com.java.yzl.bean.Paper;
import com.java.yzl.daoInter.PaperDaoInter;
import com.java.yzl.util.HibernateUtil;
import org.hibernate.Query;
import org.hibernate.Session;
import java.util.List;
public class PaperDao implements PaperDaoInter {
//获取所有试卷
public List<Paper> getPapers() throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
Query query = session.createQuery("from Paper");
@SuppressWarnings("unchecked")
List<Paper> paperList = (List<Paper>) query.list();
session.getTransaction().commit();
return paperList;
}
//获取指定试卷
public Paper getPaper(String paperId) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
Paper paper = (Paper) session.get(Paper.class, Integer.parseInt(paperId));
session.getTransaction().commit();
return paper;
}
//保存试卷实体
public void savePaper(Paper paper) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.merge(paper);
session.getTransaction().commit();
}
//删除试卷
public void paperDelete(Paper paper) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.delete(paper);
session.getTransaction().commit();
}
}
QuestionDao
package com.java.yzl.dao;
//问题DAO类
import com.java.yzl.bean.PageBean;
import com.java.yzl.bean.Question;
import com.java.yzl.bean.Student;
import com.java.yzl.daoInter.QuestionDaoInter;
import com.java.yzl.util.HibernateUtil;
import com.java.yzl.util.StringUtil;
import org.hibernate.Query;
import org.hibernate.Session;
import java.math.BigInteger;
import java.util.List;
public class QuestionDao implements QuestionDaoInter {
//通过问题id获取问题实体
public Question getQuestion(String questionId) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
Question question = (Question) session.get(Question.class, Integer.parseInt(questionId));
session.getTransaction().commit();
return question;
}
//判断执行的试卷下有无题目
public boolean existQuestionByPaperId(String paperId) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
Query query = session.createQuery("from Question as q where q.paper.id=:paperId");
query.setString("paperId", paperId);
@SuppressWarnings("unchecked")
List<Student> studentList = (List<Student>) query.list();
session.getTransaction().commit();
if (studentList.size() > 0) {
return true;
} else {
return false;
}
}
//获取所有题目
public List<Question> getQuestions(Question s_question, PageBean pageBean) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
StringBuffer hql = new StringBuffer("from Question");
if (StringUtil.isNotEmpty(s_question.getSubject())) {
hql.append(" and subject like '%" + s_question.getSubject() + "%'");
}
Query query = session.createQuery(hql.toString().replaceFirst("and", "where"));
if (pageBean != null) {
query.setFirstResult(pageBean.getStart());
query.setMaxResults(pageBean.getPageSize());
}
@SuppressWarnings("unchecked")
List<Question> questionList = (List<Question>) query.list();
session.getTransaction().commit();
return questionList;
}
//查询试题记录数
public int questionCount(Question s_question) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
StringBuffer sql = new StringBuffer("select count(*) from t_question");
if (StringUtil.isNotEmpty(s_question.getSubject())) {
sql.append(" and subject like '%" + s_question.getSubject() + "%'");
}
Query query = session.createSQLQuery(sql.toString().replaceFirst("and", "where"));
int count = ((BigInteger) query.uniqueResult()).intValue();
session.getTransaction().commit();
return count;
}
//保存试题实体
public void saveQuestion(Question question) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.merge(question);
session.getTransaction().commit();
}
//删除试题
public void deleteQuestion(Question question) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.delete(question);
session.getTransaction().commit();
}
}
StudentDao
package com.java.yzl.dao;
import com.java.yzl.bean.PageBean;
import com.java.yzl.bean.Student;
import com.java.yzl.daoInter.StudentDaoInter;
import com.java.yzl.util.HibernateUtil;
import com.java.yzl.util.StringUtil;
import org.hibernate.Query;
import org.hibernate.Session;
import java.math.BigInteger;
import java.util.List;
public class StudentDao implements StudentDaoInter {
//学生登录
public Student login(Student student) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
Query query = session.createQuery("from Student as s where s.id=:id and s.password=:password ");
query.setString("id", student.getId());
query.setString("password", student.getPassword());
Student resultStu = (Student) query.uniqueResult();
session.getTransaction().commit();
return resultStu;
}
//通过id获取学生实体
public Student getStudentById(String id) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
Student student = (Student) session.get(Student.class, id);
session.getTransaction().commit();
return student;
}
//保存学生实体
public void saveStudent(Student student) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.merge(student);
session.getTransaction().commit();
}
//获取所有学生
public List<Student> getStudents(Student s_student, PageBean pageBean) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
StringBuffer hql = new StringBuffer("from Student");
if (StringUtil.isNotEmpty(s_student.getId())) {
hql.append(" and id like '%" + s_student.getId() + "%'");
}
if (StringUtil.isNotEmpty(s_student.getName())) {
hql.append(" and name like '%" + s_student.getName() + "%'");
}
Query query = session.createQuery(hql.toString().replaceFirst("and", "where"));
if (pageBean != null) {
query.setFirstResult(pageBean.getStart());
query.setMaxResults(pageBean.getPageSize());
}
@SuppressWarnings("unchecked")
List<Student> studentList = (List<Student>) query.list();
session.getTransaction().commit();
return studentList;
}
//查询学生记录数
public int studentCount(Student s_student) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
StringBuffer sql = new StringBuffer("select count(*) from t_student");
if (StringUtil.isNotEmpty(s_student.getId())) {
sql.append(" and id like '%" + s_student.getId() + "%'");
}
if (StringUtil.isNotEmpty(s_student.getName())) {
sql.append(" and name like '%" + s_student.getName() + "%'");
}
Query query = session.createSQLQuery(sql.toString().replaceFirst("and", "where"));
int count = ((BigInteger) query.uniqueResult()).intValue();
session.getTransaction().commit();
return count;
}
//保存学生
public void studentSave(Student student) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.merge(student);
session.getTransaction().commit();
}
//删除学生
public void studentDelete(Student student) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
session.delete(student);
session.getTransaction().commit();
}
//通过id获取学生
public Student getStudent(String id) throws Exception {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
Student student = (Student) session.get(Student.class, id);
session.getTransaction().commit();
return student;
}
}
login.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>在线考试(考生登录端)</title>
<link href="${pageContext.request.contextPath}/style/studentInfo.css" rel="stylesheet">
<link href="${pageContext.request.contextPath}/bootstrap/css/bootstrap.css" rel="stylesheet">
<link href="${pageContext.request.contextPath}/bootstrap/css/bootstrap-responsive.css" rel="stylesheet">
<script src="${pageContext.request.contextPath}/bootstrap/js/jQuery.js"></script>
<script src="${pageContext.request.contextPath}/bootstrap/js/bootstrap.js"></script>
<script type="text/javascript">
if ('${error}' != '') {
alert('${error}');
}
</script>
<script type="text/javascript">
function checkForm() {
var id = document.getElementById("id").value;
var password = document.getElementById("password").value;
if (id == null || id == "") {
alert("准考证号不能为空!");
return false;
}
if (password == null || password == "") {
alert("登录密码不能为空!");
return false;
}
return true;
}
function resetValue() {
document.getElementById("id").value = "";
document.getElementById("password").value = "";
}
</script>
</head>
<body>
<div align="center" style="padding-top: 20px;">
<form action="student!login" method="post" onsubmit="return checkForm()">
<table width="1004" height="584" background="image/login.jpg">
<tr height="200">
<td colspan="4"></td>
</tr>
<tr height="10">
<td width="68%"></td>
<td width="10%"><label>准考证号:</label></td>
<td><input type="text" id="id" name="student.id" value="${student.id }"/></td>
<td width="30%"></td>
</tr>
<tr height="10">
<td width="40%"></td>
<td width="10%"><label>登录密码:</label></td>
<td><input type="password" id="password" name="student.password" value="${student.password }"/></td>
<td width="30%"></td>
</tr>
<tr height="10">
<td width="40%"></td>
<td width="10%">
<button class="btn btn-primary" type="submit">登录</button>
</td>
<td>
<button class="btn btn-primary" type="button" onclick="resetValue()">重置</button>
</td>
<td><a href="login-admin.jsp" class="btn btn-primary">后台管理</a></td>
<td width="30%"></td>
</tr>
</table>
</form>
</div>
</body>
</html>
menu.jsp
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<script type="text/javascript">
function logout(){
if(confirm('您确定要退出系统吗?')){
window.location.href='student!logout';
}
}
function logout2(){
if(confirm('您确定要退出系统吗?')){
window.location.href='manager!logout';
}
}
</script>
<div class="navbar">
<div class="navbar-inner">
<a class="brand" href="main.jsp">首页</a>
<ul class="nav">
<c:choose>
<c:when test="${currentUser.flag==1}">
<li><a href="${pageContext.request.contextPath}/student!list">考生信息管理</a></li>
<li><a href="${pageContext.request.contextPath}/exam!examList">考生成绩查询</a></li>
<li><a href="${pageContext.request.contextPath}/paper!paperList">试卷管理</a></li>
<li><a href="${pageContext.request.contextPath}/question!list">题目管理</a></li>
<li><a href="javascript:logout2()">退出系统</a></li>
</c:when>
<c:otherwise>
<li><a href="${pageContext.request.contextPath}/paper!list">在线考试</a></li>
<li><a href="${pageContext.request.contextPath}/exam!getExams?s_exam.student.id=${currentUser.id}">成绩查询</a></li>
<li><a href="${pageContext.request.contextPath}/student!preUpdatePassword">修改密码</a></li>
<li><a href="javascript:logout()">退出系统</a></li>
</c:otherwise>
</c:choose>
</ul>
</div>
</div>
head.jsp
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<div align="center">
<div style="background: url('${pageContext.request.contextPath}/image/banner.jpg');
height:90px;width:1000px;float:right;" >
<font style="float: right;padding: 65px 20px 20px 10px;">欢迎:<strong>${currentUser.name }</strong></font>
</div>
</div>
foot.jsp
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<div align="center">
<div class="foot">Copyright ? 2021-2021 无民科技</div>
</div>
default.jsp
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<div class="defaultPage">
<p>欢迎使用在线考试系统!</p>
</div>
四、其他
1.其他系统实现
1.JavaWeb系统系列实现
Java+JSP实现学生图书管理系统
Java+JSP实现学生信息管理系统
Java+JSP实现用户信息管理系统
Java+Servlet+JSP实现航空订票系统
Java+Servlet+JSP实现学生选课管理系统
Java+Servlet+JSP实现宠物诊所管理系统
Java+Servlet+JSP实现学生成绩管理系统-1
Java+Servlet+JSP实现学生成绩管理系统-2
Java+SSM+Easyui实现网上考试系统
Java+Springboot+Mybatis+Bootstrap+Maven实现网上商城系统
2.JavaSwing系统系列实现
Java+Swing实现斗地主游戏
Java+Swing实现图书管理系统
Java+Swing实现医院管理系统
Java+Swing实现仓库管理系统-1
Java+Swing实现仓库管理系统-2
Java+Swing实现考试管理系统
Java+Swing实现通讯录管理系统
Java+Swing实现停车场管理系统
Java+Swing实现学生信息管理系统
Java+Swing实现学生宿舍管理系统
Java+Swing实现学生选课管理系统
Java+Swing实现学生成绩管理系统
Java+Swing实现学校教材管理系统
Java+Swing实现学校教务管理系统
Java+Swing实现企业人事管理系统
Java+Swing实现电子相册管理系统
Java+Swing实现超市管理系统-TXT存储数据
Java+Swing实现自助取款机系统-TXT存储数据
Java+Swing实现宠物商店管理系统-TXT存储数据
2.获取源码
点击以下链接获取源码,数据库文件在sql文件夹下面。论文在论文文件夹下面。
Java+SSH+Bootstrap+Mysql在线考试系统源码
3.运行项目
请点击以下链接,部署你的项目。
IDEA如何导入JavaWeb项目超详细视频教程
4.备注
如有侵权请联系我删除。
5.支持博主
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6.鸡汤
心怀大我,成就自我!
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