examclient.java

这是个可以进行多项选择的系统

package exam.web;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.Socket;

import javax.swing.JOptionPane;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

import exam.dao.CourseDao;
import exam.dao.CourseDaoImpByWeb;
import exam.dao.PaperDao;
import exam.dao.PaperDaoImpByWeb;
import exam.dao.ScoreDao;
import exam.dao.ScoreDaoImpByWeb;
import exam.dao.StudentDao;
import exam.dao.StudentDaoImpByWeb;
import exam.gui.LoginFrame;
import exam.model.Course;
import exam.model.Paper;
import exam.model.Student;

/**
 * @author 董晓炜
 *
 * Feb 13, 2009 1:06:48 PM
 */
public class ExamClient {
	private Socket s;//实现Socket的复用
	private Student student;
	private	Course course;
	private Paper paper;
	
	public void close(){
		if(s!=null){
			try {
				s.close();
	} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}
	public ExamClient()throws IOException{
		try {
			s=new Socket("192.168.0.3",8888);
		} catch (IOException e) {
			throw e;
		} 
	}

	public Socket getS() {
		return s;
	}

	public void setS(Socket s) {
		this.s = s;
	}
	public boolean stop()throws IOException{
		try {
			BufferedReader br=new BufferedReader(new InputStreamReader(s.getInputStream()));
			String str=null;
			str=br.readLine();
			if(str.equals("stop")){
				return true;
			}
			if(str.equals("again")){
				return false;
			}
		} catch (IOException e) {
			throw e;
		}
		return false;
	}
	public Student login(JTextField jtf,JPasswordField jpf){//从客户端得到学号和密码
		StudentDao std=new StudentDaoImpByWeb(s);
		student=std.getStudent(jtf.getText(), String.valueOf(jpf.getPassword()));
		return student;
	}
	public Course getCourse() {
		return course;
	}

	public void setCourse(Course course) {
		this.course = course;
	}

	public Course[] getCourses(){//从服务器端得到所有科目
		CourseDao cd=new CourseDaoImpByWeb(s);
		return cd.getCourse();
	}
	public Paper getPaper(Course course){//从客户端得到所选择的科目，然后从服务器端得到试卷
		this.course=course;
		PaperDao pd=new PaperDaoImpByWeb(s);
		paper=pd.getPaper(course.getCourseFile());
		return paper;
	}
	public void send(char Score,int score){
		ScoreDao sd=new ScoreDaoImpByWeb(s,student);
		sd.addScore(student.getId(), Score,score,course.getCourseName());
	}
	public Student getStudent() {
		return student;
	}

	public void setStudent(Student st) {
		this.student = st;
	}

	public Paper getPaper() {
		return paper;
	}

	public void setPaper(Paper paper) {
		this.paper = paper;
	}
	public static void main(String [] args){
		ExamClient ec=null;
		LoginFrame a=null;
		try {
			 ec=new ExamClient();
			 a=new LoginFrame(ec);
		} catch (IOException e) {
			JOptionPane.showMessageDialog(a, "服务器无连接");
		}
	}
}