基于javaweb+mysql的jsp+servlet在线考试系统(java+jsp+servlet+mysql)

运行环境

Java≥8、MySQL≥5.7、Tomcat≥8

开发工具

eclipse/idea/myeclipse/sts等均可配置运行

适用

课程设计，大作业，毕业设计，项目练习，学习演示等

功能说明

网络考试系统主要用于实现高校在线考试，基本功能包括：自动组卷、试卷发布、试卷批阅、试卷成绩统计等。本系统结构如下：

后台管理员：系统功能、用户、角色、题目管理、试卷管理、

后台教师：题目管理、试卷管理

前台学生：查看试题、答题、查看错题

后台管理员

后台教师

前台学生

技术框架

JSP Servlet MySQL JDBC Tomcat jQuery Bootstrap

基于javaweb+mysql的JSP+Servlet在线考试系统(java+jsp+servlet+mysql)

public class LoginFilter implements Filter {

	public void destroy() {
		// TODO Auto-generated method stub

	}

	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		// TODO Auto-generated method stub
		HttpServletRequest req = (HttpServletRequest)request;
		HttpServletResponse rsp = (HttpServletResponse)response;
		HttpSession session = req.getSession();
		if(session==null || session.getAttribute("user")==null){
			//处理未登陆问题。重定向到登陆页面
			//String path = req.getContextPath();
			//String basePath = req.getScheme()+"://"+req.getServerName()+":"+req.getServerPort()+path+"/";
			rsp.sendRedirect("/projdemo/login.jsp");
			return;
		}
		else{
			System.out.println("成功执行操作");
		}
		chain.doFilter(request, response);
	}

	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub

	}

}

public class Tools {

	/**

	/**
	 * 初始化修改页面
	 * @param request
	 * @param response
	 * @throws IOException 
	 * @throws ServletException 
	 */
	private void toedit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		Subject subject = new Subject();
		subject.setSid(Integer.parseInt(request.getParameter("id")));
		subject = service.detail(subject);
		if(subject!=null){
			request.setAttribute("item",subject);
			request.getRequestDispatcher("/sys/subject/edit.jsp").forward(request, response);
		}else{
			request.setAttribute("msg", "需要修改的试题功能不存在。");
			request.getRequestDispatcher("/error.jsp").forward(request, response);
		}
	}

	/**
	 * 查询试题列表
	 * @param request
	 * @param response
	 * @throws IOException 
	 * @throws ServletException 
	 */
	private void list(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		
		String scontent = request.getParameter("scontent");
		Subject subject = new Subject();
		if(scontent!=null && !scontent.equals("")){
			subject.setScontent(scontent);
		}
		
		PageControl pc = new PageControl();
		Integer currindex = 1;
		if(request.getParameter("index")!=null){
			currindex = Integer.parseInt(request.getParameter("index"));
		}

	IUserService service = new UserService();
	IPaperService paperService = new PaperService();
	IStudentpaperService spServece = new StudentpaperService();
	@Override
	protected void service(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		
		String cmd= request.getParameter("cmd");
		if(cmd.equals("paperlist")){
			index(request,response);
		}else if(cmd.equals("login")){
			login(request,response);
		}else if(cmd.equals("init")){
			initpage(request,response);
		}else if(cmd.equals("logout")){
			logout(request,response);
		}else if(cmd.equals("list")){
			list(request,response);
		}else if(cmd.equals("add")){
			add(request,response);
		}else if(cmd.equals("toedit")){
			toedit(request,response);
		}else if(cmd.equals("edit")){
			edit(request,response);
		}else if(cmd.equals("toeditpwd")){
			toeditpwd(request,response);
		}else if(cmd.equals("editpwd")){
			editpwd(request,response);
		}else if(cmd.equals("paper")){
			paper(request,response);
		}else if(cmd.equals("stulogin")){
			stulogin(request,response);
		}else if(cmd.equals("answer")){
			answer(request,response);
		}
	}
	/**
	 * 跳转首页
	 * @param request
	 * @param response
	 */
	private void index(HttpServletRequest request, HttpServletResponse response) {
		Paper paper = new Paper();
		//String pname = request.getParameter("pname");
		//paper.setPname(pname);
		List<Paper> papers = paperService.list(paper);
		request.setAttribute("papers", papers);
		try {
			request.getRequestDispatcher("/user/index.jsp").forward(request, response);
		} catch (ServletException e) {

public class RoleServlet extends HttpServlet {

	IRoleService service = new RoleService();
	
	@Override
	protected void service(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		String cmd = request.getParameter("cmd");
		if(cmd.equals("list")){
			list(request,response);
		}else if(cmd.equals("add")){
			add(request,response);
		}else if(cmd.equals("initrole")){
			initrole(request,response);
		}else if(cmd.equals("saveright")){
			saveright(request,response);
		}else if(cmd.equals("toedit")){
			toedit(request,response);
		}else if(cmd.equals("edit")){
			edit(request,response);
		}
	}

	/**
	 * 保存角色权限
	 * @param request
	 * @param response
	 * @throws IOException 
	 * @throws ServletException 
	 */
	private void saveright(HttpServletRequest request,
			HttpServletResponse response) throws IOException, ServletException {
		
		String[] funids = request.getParameterValues("ckrr");
		String roleid = request.getParameter("roleid");
		Integer rtn = service.saveright(roleid, funids);
		if(rtn>0){
			response.sendRedirect(Tools.Basepath(request, response)+"sys/role?cmd=list");
		}else{
			request.setAttribute("msg", "保存角色权限失败");
			request.getRequestDispatcher("/error.jsp").forward(request, response);
		}

				request.getRequestDispatcher("/sys/user/edit.jsp").forward(request, response);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	/**
	 * 用户初始化修改页面
	 * @param request
	 * @param response
	 * @throws IOException 
	 * @throws ServletException 
	 * @throws IOException 
	 * @throws ServletException 
	 */
	private void toedit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		Sysuser user = new Sysuser();
		user.setUserid(Integer.parseInt(request.getParameter("id")));
		user = service.detail(user);
		if(user!=null){
			request.setAttribute("item",user);
			request.getRequestDispatcher("/sys/user/edit.jsp").forward(request, response);
		}else{
			request.setAttribute("msg", "需要修改的用户不存在。");
			request.getRequestDispatcher("/error.jsp").forward(request, response);
		}
	}
	/**
	 * 修改用户密码功能
	 * @param request
	 * @param response
	 */
	private void editpwd(HttpServletRequest request, HttpServletResponse response) {
		// TODO Auto-generated method stub
		Sysuser user = new Sysuser();
		
		try {
			BeanUtils.populate(user, request.getParameterMap());
			Integer rtn = service.editpwd(user);

		}else if(cmd.equals("edit")){
			edit(request,response);
		}
	}

	/**
	 * 修改试题功能
	 * @param request
	 * @param response
	 */
	private void edit(HttpServletRequest request, HttpServletResponse response) {
		
		Subject subject = new Subject();
		
		try {
			BeanUtils.populate(subject, request.getParameterMap());
			Integer rtn = service.edit(subject);
			if(rtn>0){			
				response.sendRedirect(Tools.Basepath(request, response)+"sys/subject?cmd=list");
			}else{
				request.setAttribute("msg", "编辑试题功能失败！");
				request.getRequestDispatcher("/sys/subject/edit.jsp").forward(request, response);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	/**
	 * 初始化修改页面
	 * @param request
	 * @param response
	 * @throws IOException 
	 * @throws ServletException 
	 */
	private void toedit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		Subject subject = new Subject();
		subject.setSid(Integer.parseInt(request.getParameter("id")));
		subject = service.detail(subject);
		if(subject!=null){
			request.setAttribute("item",subject);
			request.getRequestDispatcher("/sys/subject/edit.jsp").forward(request, response);
		}else{
			request.setAttribute("msg", "需要修改的试题功能不存在。");
			request.getRequestDispatcher("/error.jsp").forward(request, response);

	 */
	private void login(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		Sysuser user = new Sysuser();
		user.setUsername(request.getParameter("username"));
		user.setUserpwd(request.getParameter("userpwd"));
		
		user = service.login(user);
		if(user==null){
			request.setAttribute("msg", "用户名密码错误");
			request.getRequestDispatcher("/login.jsp").forward(request, response);
			return;
		}else{
			HttpSession session = request.getSession(true);
			session.setAttribute("user", user);
			initpage(request, response);
			//request.getRequestDispatcher("/sys/user?cmd=init").forward(request, response);
		}
	}
	/**
	 * 学生获取试题内容
	 * @param request
	 * @param response
	 * @throws IOException 
	 * @throws ServletException 
	 */
	private void paper(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		Paper paper = new Paper();
		String pname = new String(request.getParameter("pname").getBytes("utf-8"), "utf-8");
		paper.setPname(pname);
		List<Subject> subjects = paperService.subjectlist(paper);
		request.setAttribute("subjects", subjects);
		request.setAttribute("pname", pname);
		request.getRequestDispatcher("/user/paper/paper.jsp").forward(request, response);
	}
	/**
	 * 提交回答问题
	 * @param request
	 * @param response
	 * @throws UnsupportedEncodingException 

public class FunServlet extends HttpServlet {

	IFunService service = new FunService();
	@Override
	protected void service(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		
		String cmd = request.getParameter("cmd");
		if(cmd.equals("add")){
			addfun(request,response);
		}else if(cmd.equals("list")){
			funlist(request,response);
		}else if(cmd.equals("toedit")){
			toedit(request,response);
		}else if(cmd.equals("edit")){
			edit(request,response);
		}
	}

	/**
	 * 修改系统功能
	 * @param request
	 * @param response
	 */
	private void edit(HttpServletRequest request, HttpServletResponse response) {
		
		SysFunction fun = new SysFunction();
		
		try {
			BeanUtils.populate(fun, request.getParameterMap());
			Integer rtn = service.edit(fun);
			if(rtn>0){			
				response.sendRedirect(Tools.Basepath(request, response)+"sys/fun?cmd=list");
			}else{
				request.setAttribute("msg", "保存系统功能失败！");
				request.getRequestDispatcher("/sys/function/edit.jsp").forward(request, response);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}

	}
	private void slist(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		Paper paper = new Paper();
		String pname = new String(request.getParameter("pname").getBytes("utf-8"), "utf-8");
		paper.setPname(pname);
		List<Subject> subjects = service.subjectlist(paper);
		request.setAttribute("subjects", subjects);
		request.getRequestDispatcher("/sys/paper/subjects.jsp").forward(request, response);
	}
}

public class LoginFilter implements Filter {

	public void destroy() {
		// TODO Auto-generated method stub

	}

	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		// TODO Auto-generated method stub
		HttpServletRequest req = (HttpServletRequest)request;
		HttpServletResponse rsp = (HttpServletResponse)response;
		HttpSession session = req.getSession();
		if(session==null || session.getAttribute("user")==null){

		user.setUserpwd(request.getParameter("userpwd"));
		user = service.stulogin(user);
		if(user==null){
			request.setAttribute("msg", "用户名密码错误");
			request.getRequestDispatcher("/login.jsp").forward(request, response);
			return;
		}else{
			HttpSession session = request.getSession(true);
			session.setAttribute("user", user);
			session.setAttribute("userid", user.getUserid());
			index(request, response);
		//	request.getRequestDispatcher("/sys/user?cmd=init").forward(request, response);
		}
	}
}

public class RoleServlet extends HttpServlet {

	IRoleService service = new RoleService();
	

			e.printStackTrace();
		}
	}
	/**
	 * 获取用户列表
	 * @param request
	 * @param response
	 * @throws IOException 
	 * @throws ServletException 
	 * @throws IOException 
	 * @throws ServletException 
	 */
	private void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		String sname = request.getParameter("sname");
		Sysuser user = new Sysuser();
		if(sname!=null && !sname.equals("")){
			user.setUsername(sname);
		}
		
		PageControl pc = new PageControl();
		Integer currindex = 1;
		if(request.getParameter("index")!=null){
			currindex = Integer.parseInt(request.getParameter("index"));
		}
		pc.setCurrentindex(currindex);
		//pc.setPagesize(5);
		
		Pager<Sysuser> pager = service.list(user, pc);
		request.setAttribute("pager", pager);
		request.getRequestDispatcher("/sys/user/list.jsp").forward(request, response);
		
	}

	/**
	 * 注销
	 * @param request
	 * @param response
	 * @throws IOException 
	 */
	private void logout(HttpServletRequest request, HttpServletResponse response) throws IOException {
		
		HttpSession session = request.getSession();
		session.removeAttribute("user");
		response.sendRedirect(Tools.Basepath(request, response)+"login.jsp");
	}

	 * @param response
	 */
	private void initpage(HttpServletRequest request, HttpServletResponse response) {
		
		HttpSession session = request.getSession(true);
		Sysuser user = (Sysuser)session.getAttribute("user");
		List<SysFunction> list = service.initpage(user);
		try {
			request.setAttribute("list", list);
			RequestDispatcher rds=request.getRequestDispatcher("/index.jsp");
			rds.forward(request, response);
			return;
			//request.getRequestDispatcher("/index.jsp").forward(request, response);
		} catch (Exception e) {
			e.printStackTrace();
		} 
	}

	/**
	 * 用户登陆
	 * @param request
	 * @param response
	 * @throws IOException 
	 * @throws ServletException 
	 */
	private void login(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		Sysuser user = new Sysuser();
		user.setUsername(request.getParameter("username"));
		user.setUserpwd(request.getParameter("userpwd"));
		
		user = service.login(user);
		if(user==null){
			request.setAttribute("msg", "用户名密码错误");
			request.getRequestDispatcher("/login.jsp").forward(request, response);
			return;
		}else{
			HttpSession session = request.getSession(true);
			session.setAttribute("user", user);
			initpage(request, response);
			//request.getRequestDispatcher("/sys/user?cmd=init").forward(request, response);
		}
	}
	/**
	 * 学生获取试题内容
	 * @param request
	 * @param response
	 * @throws IOException 
	 * @throws ServletException 
	 */
	private void paper(HttpServletRequest request,

		List<Subject> subjects = paperService.subjectlist(paper);
		request.setAttribute("subjects", subjects);
		request.setAttribute("pname", pname);
		request.getRequestDispatcher("/user/paper/paper.jsp").forward(request, response);
	}
	/**
	 * 提交回答问题
	 * @param request
	 * @param response
	 * @throws UnsupportedEncodingException 
	 */
	private void answer(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException {
		//JSONArray json = JSONArray.fromObject(personstr);
		// TODO Auto-generated method stub
		// System.out.println(request.getParameterMap());
		String pname = new String(request.getParameter("pname").getBytes("utf-8"), "utf-8");
		Studentpaper studentpaper = new Studentpaper();
		try {
			BeanUtils.populate(studentpaper, request.getParameterMap());
			studentpaper.setPname(pname);
			Integer rtn = spServece.addPaper(studentpaper);
			if(rtn>0){
				//response.sendRedirect(Tools.Basepath(request, response)+"sys/user?cmd=list");
			}else{
//				request.setAttribute("msg", "保存用户失败");
//				request.getRequestDispatcher("/sys/user/add.jsp").forward(request, response);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	/**
	 * 学生登陆
	 * @param request
	 * @param response
	 * @throws IOException 
	 * @throws ServletException 
	 */
	private void stulogin(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		Sysuser user = new Sysuser();
		user.setUsername(request.getParameter("username"));
		user.setUserpwd(request.getParameter("userpwd"));
		user = service.stulogin(user);
		if(user==null){
			request.setAttribute("msg", "用户名密码错误");
			request.getRequestDispatcher("/login.jsp").forward(request, response);

		String cmd= request.getParameter("cmd");
		if(cmd.equals("paperlist")){
			index(request,response);
		}else if(cmd.equals("login")){
			login(request,response);
		}else if(cmd.equals("init")){
			initpage(request,response);
		}else if(cmd.equals("logout")){
			logout(request,response);
		}else if(cmd.equals("list")){
			list(request,response);
		}else if(cmd.equals("add")){
			add(request,response);
		}else if(cmd.equals("toedit")){
			toedit(request,response);
		}else if(cmd.equals("edit")){
			edit(request,response);
		}else if(cmd.equals("toeditpwd")){
			toeditpwd(request,response);
		}else if(cmd.equals("editpwd")){
			editpwd(request,response);
		}else if(cmd.equals("paper")){
			paper(request,response);
		}else if(cmd.equals("stulogin")){
			stulogin(request,response);
		}else if(cmd.equals("answer")){
			answer(request,response);
		}
	}
	/**
	 * 跳转首页
	 * @param request
	 * @param response
	 */
	private void index(HttpServletRequest request, HttpServletResponse response) {
		Paper paper = new Paper();
		//String pname = request.getParameter("pname");
		//paper.setPname(pname);
		List<Paper> papers = paperService.list(paper);
		request.setAttribute("papers", papers);
		try {
			request.getRequestDispatcher("/user/index.jsp").forward(request, response);

	 * 注销
	 * @param request
	 * @param response
	 * @throws IOException 
	 */
	private void logout(HttpServletRequest request, HttpServletResponse response) throws IOException {
		
		HttpSession session = request.getSession();
		session.removeAttribute("user");
		response.sendRedirect(Tools.Basepath(request, response)+"login.jsp");
	}

	/**
	 * 初始化主页
	 * @param request
	 * @param response
	 */
	private void initpage(HttpServletRequest request, HttpServletResponse response) {
		
		HttpSession session = request.getSession(true);
		Sysuser user = (Sysuser)session.getAttribute("user");
		List<SysFunction> list = service.initpage(user);
		try {
			request.setAttribute("list", list);
			RequestDispatcher rds=request.getRequestDispatcher("/index.jsp");
			rds.forward(request, response);
			return;
			//request.getRequestDispatcher("/index.jsp").forward(request, response);
		} catch (Exception e) {
			e.printStackTrace();
		} 
	}

	/**
	 * 用户登陆
	 * @param request
	 * @param response
	 * @throws IOException 
	 * @throws ServletException 
	 */
	private void login(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

		request.setAttribute("list",list);
		
		role = service.detail(role);
		request.setAttribute("role", role);
		request.getRequestDispatcher("/sys/role/right.jsp").forward(request, response);
	}

	/**
	 * 新增角色
	 * @param request
	 * @param response
	 */
	private void add(HttpServletRequest request, HttpServletResponse response) {
		
		Sysrole role = new Sysrole();
		try {
			BeanUtils.populate(role, request.getParameterMap());
			Integer rtn = service.add(role);
			if(rtn>0){
				response.sendRedirect(Tools.Basepath(request, response)+"sys/role?cmd=list");
			}else{
				request.setAttribute("msg", "保存角色失败");
				request.getRequestDispatcher("/sys/role/add.jsp").forward(request, response);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	/**
	 * 获取角色列表
	 * @param request
	 * @param response
	 * @throws IOException 
	 * @throws ServletException 
	 */
	private void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		String sname = request.getParameter("sname");
		Sysrole role = new Sysrole();
		if(sname!=null && !sname.equals("")){
			role.setRolename(sname);

		}else if(cmd.equals("logout")){
			logout(request,response);
		}else if(cmd.equals("list")){
			list(request,response);
		}else if(cmd.equals("add")){
			add(request,response);
		}else if(cmd.equals("toedit")){
			toedit(request,response);
		}else if(cmd.equals("edit")){
			edit(request,response);
		}else if(cmd.equals("toeditpwd")){
			toeditpwd(request,response);
		}else if(cmd.equals("editpwd")){
			editpwd(request,response);
		}else if(cmd.equals("paper")){
			paper(request,response);
		}else if(cmd.equals("stulogin")){
			stulogin(request,response);
		}else if(cmd.equals("answer")){
			answer(request,response);
		}
	}
	/**
	 * 跳转首页
	 * @param request
	 * @param response
	 */
	private void index(HttpServletRequest request, HttpServletResponse response) {
		Paper paper = new Paper();
		//String pname = request.getParameter("pname");
		//paper.setPname(pname);
		List<Paper> papers = paperService.list(paper);
		request.setAttribute("papers", papers);
		try {
			request.getRequestDispatcher("/user/index.jsp").forward(request, response);
		} catch (ServletException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
	/**
	 * 修改用户功能
	 * @param request
	 * @param response
	 */
	private void edit(HttpServletRequest request, HttpServletResponse response) {

	}
}

public class SubjectServlet extends HttpServlet {

	ISubjectService service = new SubjectService();
	@Override
	protected void service(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		
		String cmd = request.getParameter("cmd");
		if(cmd.equals("add")){
			addsubject(request,response);
		}else if(cmd.equals("list")){
			 list(request,response);
		}else if(cmd.equals("toedit")){
			toedit(request,response);
		}else if(cmd.equals("edit")){
			edit(request,response);
		}
	}

	/**
	 * 修改试题功能
	 * @param request
	 * @param response
	 */
	private void edit(HttpServletRequest request, HttpServletResponse response) {