package?com.tarena.biz.exam;

import?java.io.IOException;
import?java.util.ArrayList;
import?java.util.Enumeration;
import?java.util.List;

import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.http.HttpServletResponse;
import?javax.servlet.http.HttpSession;

import?com.tarena.biz.Subject.SubjectBiz;
import?com.tarena.biz.online_stu.Online_stuBiz;
import?com.tarena.persist.DAO.AnswerDAO;
import?com.tarena.persist.DAO.ExamMainDAO;
import?com.tarena.persist.DAO.QuestionDAO;
import?com.tarena.persist.DAO.SubjectsDAO;
import?com.tarena.persist.Factory.FactoryDAO;
import?com.tarena.userBean.Answer;
import?com.tarena.userBean.Paper;
import?com.tarena.userBean.PaperAnswers;
import?com.tarena.userBean.Question;
import?com.tarena.userBean.Score;
import?com.tarena.userBean.Subject;

public?class?ExamMainBiz?{
	private?ExamMainDAO?examdao;
	private?QuestionDAO?questiondao;
	private?SubjectsDAO?subjectdao;
	private?AnswerDAO?answerdao;

	@SuppressWarnings（“static-access“）
	public?ExamMainBiz（）?{
		FactoryDAO?factory?=?new?FactoryDAO（）.getDAOFactory（）;
		this.examdao?=?factory.getExamDAO（）;
		this.questiondao?=?factory.getQuestionDAO（）;
		this.subjectdao?=?factory.getSubjectsDAO（）;
		this.answerdao?=?factory.getAnsweDAO（）;

	}

	/**
	?*?根據(jù)科目名字查找該科目的所有試題
	?*/
	public?boolean?findQuestionBySubNam（HttpServletRequest?request）?{
		HttpSession?session?=?request.getSession（）;
//		System.out.println（request.getCharacterEncoding（））;
		String?subname?=?request.getParameter（“subject“）;
		int?sid=0;
		//?根據(jù)課程名查課程ID
		if（request.getParameter（“sid“）!=null）{
			sid=Integer.parseInt（request.getParameter（“sid“））;
		}else{
			sid?=?examdao.findSidBySubjectName（subname）;
		}
		//?根據(jù)課程ID查課程對(duì)象
		Subject?su?=?subjectdao.findSubject（sid）;
		//?根據(jù)課程對(duì)象創(chuàng)建一個(gè)試卷對(duì)象
		Paper?paper?=?createPaper（su）;
		int?id=Integer.parseInt（String.valueOf（session.getAttribute（“user_id“）））;
		//更新考生的狀態(tài)
		new?Online_stuBiz（）.updateOnlineStudent（id?su.gettitle（））;
		//?將課程對(duì)象和試題數(shù)組加到request中
		session.setAttribute（“sub“?su）;
		//?將試卷對(duì)象和試題數(shù)組加到request中
		session.setAttribute（“paper“?paper）;
		if?（paper?!=?null）?{
			return?true;
		}
		return?false;
	}

	/**
	?*?根據(jù)課程對(duì)象創(chuàng)建一個(gè)套試卷
	?*/
	public?Paper?createPaper（Subject?su）?{
		Question[]?que?=?null;
		//?根據(jù)課程對(duì)象查找該課程的所有試題
		que?=?questiondao.find（su）;
		int?time?=?su.getExamTime（）;
		int?num?=?su.getQuestionNumOfPaper（）;
		int?sid?=?su.getId（）;
		return?new?Paper（num?que?time?sid）;
	}

	/**
	?*?檢查考生答案，并將成績(jī)插入數(shù)據(jù)庫(kù)中
	?*?return?操作是否成功
	?*/
	public?boolean?checkAnswer（PaperAnswers?pansHttpServletRequest?request）?{
		float?score?=?0;
		int?fen=0;
		if（pans!=null）{
		for?（int?i?=?0;?i?			int?id?=?pans.getQidAt（i）;
			String?ran?=?String.valueOf（answerdao.find（id）.getAnswer（））;
			String?kan?=?String.valueOf（pans.getAnswerAt（i））;
			//?System.out.println（“r-->“+ran）;
			//?System.out.println（“k-->“?+?kan）;
			if?（ran.equals（kan））?{
				score++;
			}
		}
		float?Ques_num=pans.getQuestionNum（）;
		float?sc=score/Ques_num;
		int

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件????????548??2009-04-17?16:38??OA_System\.classpath

?????文件????????297??2009-05-20?16:18??OA_System\.mymetadata

?????文件????????257??2009-04-17?15:55??OA_System\.mystrutsdata

?????文件???????1498??2009-04-26?15:24??OA_System\.project

?????文件????????406??2009-04-17?15:52??OA_System\.settings\.jsdtscope

?????文件?????????49??2009-04-17?15:52??OA_System\.settings\org.eclipse.wst.jsdt.ui.superType.container

?????文件??????????6??2009-04-17?15:52??OA_System\.settings\org.eclipse.wst.jsdt.ui.superType.name

?????文件???????9826??2009-05-22?21:08??OA_System\src\com\tarena\biz\exam\ExamMainBiz.java

?????文件???????1367??2009-04-27?17:00??OA_System\src\com\tarena\biz\online_stu\Online_stuBiz.java

?????文件????????591??2009-04-17?15:53??OA_System\src\com\tarena\biz\Question\AnswerBiz.java

?????文件???????3393??2009-05-22?21:10??OA_System\src\com\tarena\biz\Question\QuestionBiz.java

?????文件???????2269??2009-05-19?21:11??OA_System\src\com\tarena\biz\Subject\SubjectBiz.java

?????文件???????2761??2009-04-28?10:54??OA_System\src\com\tarena\biz\User\UserLoginAndLogoutBiz.java

?????文件???????2358??2009-04-24?16:59??OA_System\src\com\tarena\biz\User\UserServiceBiz.java

?????文件????????896??2009-04-29?14:34??OA_System\src\com\tarena\filter\CharsetFilter.java

?????文件???????1326??2009-04-28?10:33??OA_System\src\com\tarena\filter\UserFilter.java

?????文件???????1522??2009-04-28?13:23??OA_System\src\com\tarena\listenr\Online_Stu_Listenr.java

?????文件???????1723??2009-05-15?19:28??OA_System\src\com\tarena\persist\CheckUser_JDBC\CheckUser_JDBC.java

?????文件????????537??2009-04-17?15:53??OA_System\src\com\tarena\persist\DAO\AnswerDAO.java

?????文件????????652??2009-04-25?17:35??OA_System\src\com\tarena\persist\DAO\ExamMainDAO.java

?????文件????????800??2009-04-27?16:49??OA_System\src\com\tarena\persist\DAO\Online_stuDAO.java

?????文件???????1040??2009-04-29?16:20??OA_System\src\com\tarena\persist\DAO\QuestionDAO.java

?????文件????????706??2009-04-20?11:39??OA_System\src\com\tarena\persist\DAO\StudentDAO.java

?????文件????????859??2009-04-17?15:53??OA_System\src\com\tarena\persist\DAO\SubjectsDAO.java

?????文件???????3387??2009-05-19?17:45??OA_System\src\com\tarena\persist\ExamMainService_JDBC\ExamService_JDBC.java

?????文件???????1787??2009-04-26?11:18??OA_System\src\com\tarena\persist\Factory\FactoryDAO.java

?????文件???????4077??2009-04-27?17:08??OA_System\src\com\tarena\persist\Online_stu_Manager_JDBC\Online_student_Manager_JDBC.java

?????文件???????1129??2009-04-17?15:53??OA_System\src\com\tarena\persist\QuestionService_JDBC\AnswerService_JDBC.java

?????文件???????5585??2009-05-19?17:38??OA_System\src\com\tarena\persist\QuestionService_JDBC\QuestionService_JDBC.java

?????文件???????4812??2009-05-15?20:02??OA_System\src\com\tarena\persist\SubjectService_JDBC\SubjectService_JDBC.java

............此處省略230個(gè)文件信息