lListStudent students = new ArrayListStudent();
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BufferedReader br = new BufferedReader(new FileReader("D:\student.txt"));
String tmpStr = br.readLine();
while(tmpStr != null){
int firstIndex = tmpStr.indexOf(" ");
int secondIndex = tmpStr.indexOf(" ",firstIndex + 1);
int thirdIndex = tmpStr.indexOf(" ", secondIndex + 1);
int forthIndex = tmpStr.indexOf(" ", thirdIndex + 1);
Integer stuId = Integer.parseInt(tmpStr.substring(0,firstIndex));
String stuName = tmpStr.substring(firstIndex + 1,secondIndex);
Integer stuYW = Integer.parseInt(tmpStr.substring(secondIndex + 1,thirdIndex));
Integer stuSX = Integer.parseInt(tmpStr.substring(thirdIndex + 1,forthIndex));
Integer stuYY = Integer.parseInt(tmpStr.substring(forthIndex + 1));
Student student = new Student();
student.setStuId(stuId);
student.setStuName(stuName);
student.setStuYW(stuYW);
student.setStuSX(stuSX);
student.setStuYY(stuYY);
students.add(student);
tmpStr.readLine();
}
//創(chuàng)建一個學(xué)生實體類 封裝stuId stuName stuYW stuSx stuYY 這5個屬性。。。
//已經(jīng)幫你把數(shù)據(jù)拆分出來 并以Student 對象的形式放入集合中了 接下來 給分吧 哇咔咔
以下方法實現(xiàn)了用戶界面登陸
import java.awt.*;
import java.awt.event.*;
public class DengLuJieMian extends Frame implements ActionListener
{
Label username=new Label("用戶名:");//使用文本創(chuàng)建一個用戶名標(biāo)簽
TextField t1=new TextField();//創(chuàng)建一個文本框?qū)ο?/p>
Label password=new Label("密碼:");//創(chuàng)建一個密碼標(biāo)簽
TextField t2=new TextField();
Button b1=new Button("登陸");//創(chuàng)建登陸按鈕
Button b2=new Button("取消");//創(chuàng)建取消按鈕
public DengLuJieMian()
{
this.setTitle("學(xué)生信息管理系統(tǒng)");//設(shè)置窗口標(biāo)題
this.setLayout(null);//設(shè)置窗口布局管理器
username.setBounds(50,40,60,20);//設(shè)置姓名標(biāo)簽的初始位置
this.add(username);// 將姓名標(biāo)簽組件添加到容器
t1.setBounds(120,40,80,20);// 設(shè)置文本框的初始位置
this.add(t1);// 將文本框組件添加到容器
password.setBounds(50,100,60,20);//密碼標(biāo)簽的初始位置
this.add(password);//將密碼標(biāo)簽組件添加到容器
t2.setBounds(120,100,80,20);//設(shè)置密碼標(biāo)簽的初始位置
this.add(t2);//將密碼標(biāo)簽組件添加到容器
b1.setBounds(50,150,60,20);//設(shè)置登陸按鈕的初始位置
this.add(b1);//將登陸按鈕組件添加到容器
b2.setBounds(120,150,60,20);//設(shè)置取消按鈕的初始位置
this.add(b2);// 將取消按鈕組件添加到容器
b1.addActionListener(this);//給登陸按鈕添加監(jiān)聽器
b2.addActionListener(this);// 給取消按鈕添加監(jiān)聽器
this.setVisible(true);//設(shè)置窗口的可見性
this.setSize(300,200);//設(shè)置窗口的大小
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
});//通過內(nèi)部類重寫關(guān)閉窗體的方法
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==b1)//處理登陸事件
{
String name=t1.getText();
String pass=t2.getText();
if(name!=nullpass.equals("000123"))//判斷語句
{
new StudentJieMian();
}
}
}
public static void main(String args[])//主函數(shù)
{
new DengLuJieMian();
}
}
以下方法實現(xiàn)了學(xué)生界面設(shè)計
import java.awt.*;
import java.awt.event.*;
class StudentJieMian extends Frame implements ActionListener
{
MenuBar m=new MenuBar();//創(chuàng)建菜單欄
Menu m1=new Menu("信息");//創(chuàng)建菜單“信息”
MenuItem m11=new MenuItem("插入");//創(chuàng)建“插入”的菜單項
MenuItem m12=new MenuItem("查詢");
Menu m2=new Menu("成績");//創(chuàng)建菜單“成績”
MenuItem m21=new MenuItem("查詢");
public StudentJieMian()
{
this.setTitle("學(xué)生界面");//設(shè)置窗口標(biāo)題
this.setLayout(new CardLayout());//設(shè)置窗口布局管理器
this.setMenuBar(m);//將菜單欄組件添加到容器
m.add(m1);//將信息菜單放入菜單欄
m.add(m2);
m1.add(m11);//將“插入”菜單項添加到“信息”菜單
m1.add(m12); //將“查詢”菜單項添加到“信息”菜單
m2.add(m21); //將“查詢”菜單項添加到“成績”菜單
m11.addActionListener(this); //給“插入”菜單項添加監(jiān)聽器
m12.addActionListener(this); //給“查詢”菜單項添加監(jiān)聽器
m21.addActionListener(this); //給“查詢”菜單項添加監(jiān)聽器
this.setVisible(true); //設(shè)置窗口的可見性
this.setSize(300,200); //設(shè)置窗口的大小
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);//關(guān)閉窗口
}
});
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==m11) //處理“添加信息”事件
{
new AddStudent();
}
if(e.getSource()==m12) //處理“查詢信息”事件
{
new SelectStudent();
}
if(e.getSource()==m21) //處理“查詢成績”事件
{
new ChengJiStudent();
}
}
public static void main(String args[])
{ new StudentJieMian(); //創(chuàng)建一個對象 }
import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.Container;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JToolBar;
import javax.swing.SwingConstants;
public class MainFrame extends JFrame implements ActionListener{
InsertPanel ip = null;
SelectPanel sp = null;
JPanel pframe;
JButton jb1,jb2,jb3;
JMenuItem jm11,jm21,jm22,jm23,jm31,jm32,jm41,jm42;
CardLayout clayout;
public MainFrame(String s){
super(s);
JMenuBar mb = new JMenuBar();
this.setJMenuBar(mb);
JMenu m1 = new JMenu("系統(tǒng)");
JMenu m2 = new JMenu("基本信息");
JMenu m3 = new JMenu("成績");
JMenu m4 = new JMenu("獎懲");
mb.add(m1);
mb.add(m2);
mb.add(m3);
mb.add(m4);
jm11 = new JMenuItem("退出系統(tǒng)");
jm21 = new JMenuItem("輸入");
jm22 = new JMenuItem("查詢");
jm23 = new JMenuItem("更改");
jm31 = new JMenuItem("輸入成績");
jm32 = new JMenuItem("查詢成績");
jm41 = new JMenuItem("獎勵");
jm42 = new JMenuItem("處分");
m1.add(jm11);
m2.add(jm21);
m2.add(jm22);
m2.add(jm23);
m3.add(jm31);
m3.add(jm32);
m4.add(jm41);
m4.add(jm42);
Icon i1 = new ImageIcon();
Icon i2 = new ImageIcon();
Icon i3 = new ImageIcon();
jb1 = new JButton(i1);
jb1.setToolTipText("輸入");
jb2 = new JButton(i2);
jb2.setToolTipText("查詢");
jb3 = new JButton(i3);
jb3.setToolTipText("退出");
JToolBar tb = new JToolBar("系統(tǒng)工具");
tb.add(jb1);
tb.add(jb2);
tb.add(jb3);
add(tb,BorderLayout.NORTH);
jm11.addActionListener(this);
jm21.addActionListener(this);
jm22.addActionListener(this);
jb1.addActionListener(this);
jb2.addActionListener(this);
jb3.addActionListener(this);
clayout = new CardLayout();
pframe = new JPanel(clayout);
add(pframe);
JPanel mainp = new JPanel(new BorderLayout());
JLabel mainl = new JLabel("學(xué)生信息管理平臺",SwingConstants.CENTER);
mainl.setFont(new Font("serif",Font.BOLD,30));
mainp.add(mainl);
pframe.add(mainp,"main");
clayout.show(pframe, "main");
}
public void actionPerformed(ActionEvent e){
if(e.getSource() == jm21 || e.getSource() == jb1){
if(ip == null){
ip= new InsertPanel();
pframe.add(ip,"insert");
}
clayout.show(pframe, "insert");
this.setTitle("輸入學(xué)生信息");
}
else if(e.getSource() == jm22 || e.getSource() == jb2){
if(sp == null){
sp= new SelectPanel();
pframe.add(sp,"select");
}
clayout.show(pframe, "select");
this.setTitle("查詢學(xué)生信息");
}
else if(e.getSource() == jm11 || e.getSource() == jb3){
System.exit(0);
}
}
}
第二個:
import javax.swing.JFrame;
public class MainTest {
public static void main(String [] args){
MainFrame f = new MainFrame("學(xué)生信息管理平臺");
f.setSize(400,300);
f.setLocation(350,250);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
}
}
第二個:
import java.sql.Connection;
import java.sql.DriverManager;
public class MySQLConnection {
static Connection getCon(){
Connection con = null;
try{
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection("jdbc:mysql://localhost/test","root","123");
}
catch(Exception e){
System.out.println("建立數(shù)據(jù)庫連接遇到異常!");
}
return con;
}
}
第四個:
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
public class SelectPanel extends JPanel implements ActionListener{
JButton jb;
JTextField jt;
JTextField jt1,jt2,jt3,jt4;
public SelectPanel(){
JLabel jl = new JLabel("請輸入學(xué)號:",SwingConstants.CENTER);
jt = new JTextField();
jb = new JButton("確定");
JPanel jp1 = new JPanel(new GridLayout(1,3));
jp1.add(jl);
jp1.add(jt);
jp1.add(jb);
JLabel j1,j2,j3,j4;
j1 = new JLabel("學(xué)號:",SwingConstants.CENTER);
j2 = new JLabel("姓名:",SwingConstants.CENTER);
j3 = new JLabel("性別:",SwingConstants.CENTER);
j4 = new JLabel("年齡:",SwingConstants.CENTER);
jt1 = new JTextField(6);
jt1.setEditable(false);
jt2 = new JTextField(6);
jt2.setEditable(false);
jt3 = new JTextField(6);
jt3.setEditable(false);
jt4 = new JTextField(6);
jt4.setEditable(false);
JPanel jp2 = new JPanel(new BorderLayout());
JPanel jp3 = new JPanel(new GridLayout(4,2));
jp2.add(new JLabel(""),BorderLayout.NORTH);
jp3.add(j1);
jp3.add(jt1);
jp3.add(j2);
jp3.add(jt2);
jp3.add(j3);
jp3.add(jt3);
jp3.add(j4);
jp3.add(jt4);
jp2.add(jp3);
this.setLayout(new BorderLayout());
add(jp1,BorderLayout.NORTH);
add(jp2);
jb.addActionListener(this);
}
public void actionPerformed(ActionEvent e){
if(e.getSource() == jb){
String stuNo = jt.getText().trim();
Student s = new Student();
boolean b = true;
try{
b = s.selectByStuNo(stuNo);
}
catch(Exception ex){
System.out.println("查詢學(xué)生信息遇到異常!");
}
if(b){
jt1.setText(s.getStuNo());
jt2.setText(s.getName());
jt3.setText(s.getGender());
int a = s.getAge();
Integer i = new Integer(a);
jt4.setText(i.toString());
}
else{
JOptionPane.showMessageDialog(null, "無此學(xué)生!");
}
}
}
}
第五個:
import javax.swing.JFrame;
public class SelectTest {
public static void main(String [] args){
JFrame f = new JFrame("查詢學(xué)生信息");
SelectPanel p = new SelectPanel();
f.add(p);
f.setSize(400,300);
f.setLocation(300,250);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
}
}
第六個:
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
public class Student {
String stuNo;
String name;
String gender;
int age;
public Student(){}
public Student(String stuNo,String name,String gender, int age){
this.stuNo = stuNo;
this.name = name;
this.gender = gender;
this.age = age;
}
public String getStuNo(){
return stuNo;
}
public void setStuNo(String stuNo){
this.stuNo = stuNo;
}
public String getName(){
return name;
}
public void setName(String name){
this.name = name;
}
public String getGender(){
return gender;
}
public void setGender(String gender){
this.gender = gender;
}
public int getAge(){
return age;
}
public void setAge(int age){
this.age = age;
}
public boolean insertStudent(){
boolean b = true;
try{
Connection con = MySQLConnection.getCon();
Statement statement = con.createStatement();
String sql = "insert into student values('" + stuNo + "','" + name +"','" + gender + "'," + age + ")";
sql = new String(sql.getBytes("gb2312"),"ISO8859_1");
statement.executeUpdate(sql);
con.close();
}
catch(Exception e){
b = false;
System.out.println("插入數(shù)據(jù)庫遇到異常!");
}
return b;
}
public boolean selectByStuNo(String stuNo)throws Exception{
boolean b = true;
Connection con = MySQLConnection.getCon();
Statement statement = con.createStatement();
String sql = "select * from student where stuNo =" + stuNo;
ResultSet rs = statement.executeQuery(sql);
if(rs != null rs.next()){
String no = rs.getString(1);
this.setStuNo(no);
String n = rs.getString(2);
n = new String(n.getBytes("ISO8859_1"),"gb2312");
this.setName(n);
String g = rs.getString(3);
g = new String (g.getBytes("ISO8859_1"),"gb2312");
this.setGender(g);
this.setAge(rs.getInt(4));
b = true;
}
rs.close();
statement.close();
con.close();
return b;
}
}
數(shù)據(jù)庫你自己弄吧,我沒時間弄了!初學(xué)得多動手哦