第12个java作业，断断续续的用闲散时间写了十多天才算完成，一共大概1470行，记得上学期的C++课程设计也是写了1400多行，写着写着就发现上了瘾，不是为了应付作业而写，而是想探索自己未知的知识领域。
前身是：学生信息排序管理（JAVA文件操作） 用图形界面进行了重构
这是文件流版，数据库版参见 【GUI程序设计】学生信息管理系统(数据库版)
注意事项：
1.默认把学生信息放置于C盘根目录下，因为位置特殊请以管理员模式启动程序和eclipse（否则会导致保存失败）
2.共1473行代码
3.时间仓促，有部分bug以及影响体验的项目未修复（例如修改后请手动点击读取记录进行刷新）
运行截图：
源代码：（层次由低到高）
一、后台操作包(studentAndFileAction包)
1.Student类（表示学生的基本数据单元）
package studentAndFileAction;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
public class Student{
String stuNo,name;
double grade;
public Student() {
stuNo=name="";
grade=0.0;
}
public Student(String stuNo,String name,String grade) {
this.stuNo=stuNo;
this.name=name;
this.grade=Double.valueOf(grade);
}
public Student(String stuNo,String name,double grade) {
this.stuNo=stuNo;
this.name=name;
this.grade=grade;
}
public String stuInfo(){
if(this.name.length()=="占位符".length())
return String.format("%-12s %-30s %s",this.stuNo,this.name,Double.toString(this.grade));
else return String.format("%-12s %-33s %s",this.stuNo,this.name,Double.toString(this.grade));
}
}
2.StudentGroup类（表示学生集合的基本数据单元）
同时实现了增改查删的功能
package studentAndFileAction;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
public class StudentGroup{
public List<Student> dataBase =new ArrayList<Student>();
public void add(Student stu) {
try {
dataBase.add(stu);
} catch (NumberFormatException e) {
System.out.println("学号格式错误,本记录作废");
}
}
public String modify(String no,String name,String grade) {
for(int i=0;i<dataBase.size();i++)
if(dataBase.get(i).stuNo.equals(no)) {
dataBase.get(i).name=name;
dataBase.get(i).grade=Double.valueOf(grade);
return "修改成功\r\n新记录是：\r\n"+dataBase.get(i).stuInfo();
}
return "找不到";
}
//查询------------------------------------------------
public String lookup(String no,String name) {//精准查询
int index_ans[]=new int [dataBase.size()];
int index_num=0;
for(int i=0;i<dataBase.size();i++)
if(dataBase.get(i).stuNo.equals(no)&&dataBase.get(i).name.equals(name))
index_ans[index_num++]=i;
if(index_num==0) return "找不到";
else {
String re="";
for(int i=0;i<index_num;i++)
re+=(dataBase.get(index_ans[i]).stuInfo()+"\r\n");
return re;
}
}
public String lookup(String infomation,int num) {//模糊查询 num=1学号查询 2:名字查询 3:成绩查询
int index_ans[]=new int [dataBase.size()];
int index_num=0;
if(num==1) {//学号查询
for(int i=0;i<dataBase.size();i++)
if(dataBase.get(i).stuNo.equals(infomation))
index_ans[index_num++]=i;
}else if(num==2) {
for(int i=0;i<dataBase.size();i++)
if(dataBase.get(i).name.equals(infomation))
index_ans[index_num++]=i;
}else if(num==3) {
for(int i=0;i<dataBase.size();i++)
if(dataBase.get(i).grade==Double.valueOf(infomation))
index_ans[index_num++]=i;
}
if(index_num==0) return "找不到";
else {
String re="";
for(int i=0;i<index_num;i++)
re+=(dataBase.get(index_ans[i]).stuInfo()+"\r\n");
return re;
}
}
//删除-------------------------------------------------------
public String delete(String no,String name) {//精准删除
int index_ans[]=new int [dataBase.size()];
int index_num=0;
for(int i=0;i<dataBase.size();i++)
if(dataBase.get(i).stuNo.equals(no)&&dataBase.get(i).name.equals(name))
index_ans[index_num++]=i;
if(index_num==0) return "找不到";
else {
String re="";
for(int i=0;i<index_num;i++)
{
re+=(dataBase.get(index_ans[i]).stuInfo()+"\r\n");
dataBase.remove(index_ans[i]);
}
return re;
}
}
public String delete(String infomation,int num) {//模糊删除 num=1学号删除 2:名字删除 3:成绩删除
int index_ans[]=new int [dataBase.size()];
int index_num=0;
if(num==1) {//学号删除
for(int i=0;i<dataBase.size();i++)
if(dataBase.get(i).stuNo.equals(infomation))
index_ans[index_num++]=i;
}else if(num==2) {
for(int i=0;i<dataBase.size();i++)
if(dataBase.get(i).name.equals(infomation))
index_ans[index_num++]=i;
}else if(num==3) {
for(int i=0;i<dataBase.size();i++)
if(dataBase.get(i).grade==Double.valueOf(infomation))
index_ans[index_num++]=i;
}
if(index_num==0) return "找不到";
else {
String re="";
for(int i=0;i<index_num;i++)
{
re+=(dataBase.get(index_ans[i]).stuInfo()+"\r\n");
dataBase.remove(index_ans[i]);
}
return re;
}
}
public void sortSub() {
Collections.sort(dataBase, new Comparator<Student>() {
public int compare(Student stu1, Student stu2) {
if(stu1.grade<stu2.grade) return 1;
else if(stu1.grade>stu2.grade) return -1;
else return 0;
}
});
}
public void sortAdd() {
Collections.sort(dataBase, new Comparator<Student>() {
public int compare(Student stu1, Student stu2) {
if(stu1.grade>stu2.grade) return 1;
else if(stu1.grade<stu2.grade) return -1;
else return 0;
}
});
}
}
3.User类（表示用户的单元）
同时实现了文件操作相关功能（或许叫文件类更合适，懒的改了）
package studentAndFileAction;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
public class User {
int load_num=0;
File file;
public StudentGroup studentGroup=new StudentGroup();
public String file_open() {//文件打开
try {
file=new File("C:/student.txt");
return "==>找到学生信息记录存储文件，程序正常启动\r\n==>请按读取记录获取学生信息\r\n";
} catch (Exception e) {
return "无法在指定路径找到学生记录\r\n请保证学生记录在C盘根目录下！\r\n";
}
}
public void file_load_reset() {//存储后标志复位
load_num=0;
}
public void file_load() {//记录加载
try {
FileReader cin=new FileReader(file);//打开文件
if(load_num==0)
{
try {
BufferedReader input=new BufferedReader(cin);
while(true)
{
String oneStu=input.readLine();
if(oneStu==null) break;
String []infomation=oneStu.split(" ");
studentGroup.add(new Student(infomation[0],infomation[1],infomation[2]));
}
cin.close();
input.close();
} catch (IOException e) {
// TODO 自动生成的 catch 块
System.out.println("读写异常");
}
load_num++;
}
}catch (FileNotFoundException e) {
System.out.println("文件找不到,系统退出");
e.printStackTrace();
}
}
public String file_store() {//存储
try {
FileWriter writer=new FileWriter(file);
BufferedWriter write = new BufferedWriter(writer);
for(Student stu:studentGroup.dataBase) {
String out=stu.stuNo+" "+stu.name+" "+stu.grade;
write.write(out);
write.newLine();
}
write.close();
writer.close();
studentGroup.dataBase.clear();
return "保存成功！！\r\n";
} catch (IOException e) {
// TODO 自动生成的 catch 块
return "很遗憾，保存失败！！\r\n因为文件位置在C盘根目录下，请以管理员模式打开本程序\r\n";
}
}
}
二、图形界面设计（graphical 包）
1.主窗体：MainFrame.java(主窗口)
package graphical;
import javax.swing.JOptionPane;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JTextField;
import javax.swing.JLabel;
import java.awt.Font;
import javax.swing.JMenu;
import java.awt.Panel;
import java.awt.Label;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JDialog;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.SwingConstants;
import java.awt.Color;
import org.eclipse.wb.swing.FocusTraversalOnArray;
import studentAndFileAction.Student;
import studentAndFileAction.StudentGroup;
import studentAndFileAction.User;
import java.awt.Component;
import javax.swing.ImageIcon;
import javax.swing.JTable;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.DropMode;
import javax.swing.JTextArea;
import java.awt.Button;
import javax.swing.JScrollPane;
import javax.swing.ScrollPaneConstants;
import javax.swing.Box;
import java.awt.Toolkit;
public class Mainframe extends JFrame {
private JPanel contentPane;
static User yuheng=new User();
static JTextArea screen = new JTextArea();
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Mainframe frame = new Mainframe();
frame.setVisible(true);
screen.append(yuheng.file_open());
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public void display(JTextArea screen) {
screen.setText("");
for(Student stu:yuheng.studentGroup.dataBase) {
screen.append(stu.stuInfo()+"\r\n");
}
}
/**
* Create the frame.
*/
public Mainframe() {
setResizable(false);
setIconImage(Toolkit.getDefaultToolkit().getImage("img\\\u56FE\u6807.jpg"));
setTitle("\u5B66\u751F\u4FE1\u606F\u7BA1\u7406\u7CFB\u7EDF-\u4F5C\u4E1A12 by \u4E8E\u8861~");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 971, 603);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JPanel Maintitle = new JPanel();
Maintitle.setBackground(Color.WHITE);
Maintitle.setBounds(26, 10, 905, 95);
contentPane.add(Maintitle);
Maintitle.setLayout(null);
JLabel label = new JLabel("");
label.setBounds(86, 0, 713, 95);
Maintitle.add(label);
label.setIcon(new ImageIcon(Mainframe.class.getResource("/img/\u5B66\u751F\u4FE1\u606F\u7BA1\u7406\u7CFB\u7EDF.png")));
label.setFont(new Font("楷体", Font.BOLD, 41));
JPanel name_input = new JPanel();
name_input.setBounds(26, 125, 905, 45);
contentPane.add(name_input);
name_input.setLayout(null);
JLabel label_1 = new JLabel("\u4FE1\u606F\u663E\u793A\uFF1A");
label_1.setBounds(10, 4, 140, 38);
name_input.add(label_1);
label_1.setFont(new Font("微软雅黑", Font.BOLD, 28));
JLabel label_2 = new JLabel("\u529F\u80FD\u5217\u8868\uFF1A");
label_2.setFont(new Font("微软雅黑", Font.BOLD, 28));
label_2.setBounds(464, 4, 145, 38);
name_input.add(label_2);
JPanel key_area = new JPanel();
key_area.setBounds(487, 214, 444, 340);
contentPane.add(key_area);
key_area.setLayout(null);
JButton read_info = new JButton("\u8BFB\u53D6\u8BB0\u5F55");
read_info.setBounds(0, 7, 215, 77);
key_area.add(read_info);
read_info.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent arg0) {
yuheng.file_load();
display(screen);
}
});
read_info.setFont(new Font("方正姚体", Font.PLAIN, 25));
read_info.setIcon(new ImageIcon(Mainframe.class.getResource("/img/\u8BFB\u53D6\u6587\u4EF6.png")));
read_info.setBackground(Color.WHITE);
JButton store_info = new JButton("\u4FDD\u5B58\u8BB0\u5F55");
store_info.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent arg0) {
screen.append(yuheng.file_store());
yuheng.file_load_reset();//重新可读
}
});
store_info.setFont(new Font("方正姚体", Font.PLAIN, 25));
store_info.setBackground(Color.WHITE);
store_info.setIcon(new ImageIcon(Mainframe.class.getResource("/img/\u4FDD\u5B58\u6587\u4EF6.png")));
store_info.setBounds(229, 7, 215, 77);
key_area.add(store_info);
JButton info_up = new JButton("\u5347\u5E8F\u6392\u5217");
info_up.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent arg0) {
yuheng.studentGroup.sortAdd();
display(screen);
}
});
info_up.setIcon(new ImageIcon(Mainframe.class.getResource("/img/\u5347\u5E8F.png")));
info_up.setFont(new Font("方正姚体", Font.PLAIN, 25));
info_up.setBackground(Color.WHITE);
info_up.setBounds(0, 94, 215, 72);
key_area.add(info_up);
JButton info_down = new JButton("\u964D\u5E8F\u6392\u5217");
info_down.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent arg0) {
yuheng.studentGroup.sortSub();
display(screen);
}
});
info_down.setIcon(new ImageIcon(Mainframe.class.getResource("/img/\u964D\u5E8F.png")));
info_down.setFont(new Font("方正姚体", Font.PLAIN, 25));
info_down.setBackground(Color.WHITE);
info_down.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
yuheng.studentGroup.sortSub();
display(screen);
}
});
info_down.setBounds(229, 94, 215, 70);
key_area.add(info_down);
JButton add_info = new JButton("\u589E\u52A0\u8BB0\u5F55");
add_info.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent arg0) {
new add_students(Mainframe.this).setVisible(true);
}
});
add_info.setIcon(new ImageIcon(Mainframe.class.getResource("/img/\u589E\u52A0.png")));
add_info.setBackground(Color.WHITE);
add_info.setFont(new Font("方正姚体", Font.PLAIN, 25));
add_info.setBounds(0, 176, 215, 72);
key_area.add(add_info);
JButton delete_info = new JButton("\u5220\u9664\u8BB0\u5F55");
delete_info.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
new Delete_student(Mainframe.this).setVisible(true);
}
});
delete_info.setIcon(new ImageIcon(Mainframe.class.getResource("/img/\u5220\u9664.png")));
delete_info.setBackground(Color.WHITE);
delete_info.setFont(new Font("方正姚体", Font.PLAIN, 25));
delete_info.setBounds(229, 176, 215, 72);
key_area.add(delete_info);
JButton query_info = new JButton("\u67E5\u627E\u8BB0\u5F55");
query_info.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent arg0) {
new Query_students(Mainframe.this).setVisible(true);
}
});
query_info.setIcon(new ImageIcon(Mainframe.class.getResource("/img/\u67E5\u8BE2.png")));
query_info.setBackground(Color.WHITE);
query_info.setFont(new Font("方正姚体", Font.PLAIN, 25));
query_info.setBounds(0, 258, 215, 72);
key_area.add(query_info);
JButton modify_info = new JButton("\u4FEE\u6539\u8BB0\u5F55");
modify_info.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
new Alter_students_info(Mainframe.this).setVisible(true);
}
});
modify_info.setIcon(new ImageIcon(Mainframe.class.getResource("/img/\u4FEE\u6539.png")));
modify_info.setBackground(Color.WHITE);
modify_info.setForeground(Color.BLACK);
modify_info.setFont(new Font("方正姚体", Font.PLAIN, 25));
modify_info.setBounds(229, 258, 215, 72);
key_area.add(modify_info);
JPanel panel = new JPanel();
panel.setBounds(26, 180, 444, 374);
contentPane.add(panel);
panel.setLayout(null);
JLabel info = new JLabel("\u5B66\u53F7 \u59D3\u540D \u6210\u7EE9");
info.setBounds(0, 10, 343, 24);
info.setHorizontalAlignment(SwingConstants.CENTER);
panel.add(info);
info.setFont(new Font("微软雅黑", Font.PLAIN, 18));
info.setForeground(Color.BLACK);
info.setBackground(Color.WHITE);
JScrollPane scrollPane = new JScrollPane();
scrollPane.setBounds(0, 38, 444, 327);
panel.add(scrollPane);
scrollPane.setViewportView(screen);
//JTextArea screen = new JTextArea();
screen.setFont(new Font("微软雅黑", Font.PLAIN, 18));
screen.setEditable(false);
screen.setLineWrap(true);
JLabel lblNewLabel = new JLabel("New label");
lblNewLabel.setBounds(312, 180, 294, 251);
contentPane.add(lblNewLabel);
}
}
2.添加学生 Add_students.java(对话框)
package graphical;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import studentAndFileAction.Student;
import javax.swing.JLabel;
import javax.swing.JTextField;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.ImageIcon;
import javax.swing.JTextArea;
public class add_students extends JDialog {
private final JPanel contentPanel = new JPanel();
private JTextField no;
private JTextField name;
private JTextField grade;
JTextArea status = new JTextArea();
/**
* Launch the application.
*/
public static void main(Mainframe gra) {
try {
add_students dialog = new add_students(gra);
dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
dialog.setVisible(true);
dialog.setLocation(392, 180);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Create the dialog.
*/
public add_students(Mainframe gra) {
setResizable(false);
getContentPane().setEnabled(false);
this.setTitle("请输入需要添加学生的基本信息");
setBounds(100, 100, 549, 332);
getContentPane().setLayout(new BorderLayout());
contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
getContentPane().add(contentPanel, BorderLayout.CENTER);
contentPanel.setLayout(null);
{
JButton okButton = new JButton("确定");
okButton.setFont(new Font("幼圆", Font.PLAIN, 28));
okButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
status.setText("");
if(no.getText().trim().equals("")||name.getText().trim().equals("")||grade.getText().trim().equals("")){
status.setText("数据非法！");
return;
}
Student stu=new Student(no.getText().trim(),name.getText().trim(),grade.getText().trim());
gra.yuheng.studentGroup.add(stu);
status.setText("操作成功！");
}
});
okButton.setBounds(261, 201, 96, 40);
contentPanel.add(okButton);
okButton.setActionCommand("OK");
getRootPane().setDefaultButton(okButton);
}
{
JButton cancelButton = new JButton("清空");
cancelButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
no.setText("");
grade.setText("");
name.setText("");
status.setText("");
}
});
cancelButton.setFont(new Font("幼圆", Font.PLAIN, 28));
cancelButton.setBounds(413, 202, 102, 39);
contentPanel.add(cancelButton);
cancelButton.setActionCommand("Cancel");
}
JPanel panel_4 = new JPanel();
panel_4.setBounds(22, 23, 216, 247);
contentPanel.add(panel_4);
panel_4.setLayout(null);
JPanel stuName = new JPanel();
stuName.setBounds(0, 69, 216, 59);
panel_4.add(stuName);
stuName.setLayout(null);
JLabel lblNewLabel_1 = new JLabel("\u59D3\u540D");
lblNewLabel_1.setBounds(0, 0, 61, 59);
stuName.add(lblNewLabel_1);
lblNewLabel_1.setBackground(Color.WHITE);
lblNewLabel_1.setFont(new Font("方正姚体", Font.PLAIN, 25));
name = new JTextField();
name.setFont(new Font("宋体", Font.BOLD, 19));
name.setBounds(63, 14, 153, 33);
stuName.add(name);
name.setColumns(10);
JPanel stuGrade = new JPanel();
stuGrade.setBounds(0, 124, 216, 59);
panel_4.add(stuGrade);
stuGrade.setLayout(null);
JLabel lblNewLabel_2 = new JLabel("\u6210\u7EE9");
lblNewLabel_2.setBounds(0, 0, 50, 59);
stuGrade.add(lblNewLabel_2);
lblNewLabel_2.setBackground(Color.WHITE);
lblNewLabel_2.setFont(new Font("方正姚体", Font.PLAIN, 25));
grade = new JTextField();
grade.setFont(new Font("宋体", Font.BOLD, 19));
grade.setBounds(63, 19, 153, 33);
stuGrade.add(grade);
grade.setColumns(10);
JPanel stuNO = new JPanel();
stuNO.setBounds(0, 10, 216, 49);
panel_4.add(stuNO);
stuNO.setLayout(null);
JLabel lblNewLabel = new JLabel("\u5B66\u53F7");
lblNewLabel.setBounds(0, 0, 81, 49);
stuNO.add(lblNewLabel);
lblNewLabel.setBackground(Color.WHITE);
lblNewLabel.setFont(new Font("方正姚体", Font.PLAIN, 25));
no = new JTextField();
no.setFont(new Font("宋体", Font.BOLD, 19));
no.setBounds(64, 10, 152, 33);
stuNO.add(no);
no.setColumns(10);
JPanel panel = new JPanel();
panel.setBounds(0, 193, 216, 44);
panel_4.add(panel);
panel.setLayout(null);
status.setForeground(Color.BLACK);
status.setFont(new Font("幼圆", Font.BOLD, 18));
status.setEditable(false);
status.setBounds(64, 11, 152, 27);
panel.add(status);
JLabel label = new JLabel("\u72B6\u6001");
label.setBounds(0, 0, 64, 40);
panel.add(label);
label.setBackground(Color.WHITE);
label.setFont(new Font("方正姚体", Font.PLAIN, 25));
JLabel lblNewLabel_3 = new JLabel("");
lblNewLabel_3.setIcon(new ImageIcon(add_students.class.getResource("/img/\u8F93\u5165.png")));
lblNewLabel_3.setBounds(291, 23, 181, 165);
contentPanel.add(lblNewLabel_3);
}
}
3.删除记录 Delete_students.java（对话框）
package graphical;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import studentAndFileAction.Student;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.ImageIcon;
import javax.swing.JTextArea;
import javax.swing.SwingConstants;
public class Delete_student extends JDialog {
private final JPanel contentPanel = new JPanel();
private JTextField no;
private JTextField name;
private JTextField grade;
JTextArea status = new JTextArea();
JTextArea screen = new JTextArea(
"\r\n"
+ "注意：本程序提供精确删除和模糊删除两种删除方式 \r\n"
+ "1.精准删除模式\r\n"
+ " 输入学号，姓名等两项参数，返回删除结果。\r\n"
+ "2.模糊删除模式\r\n"
+ " 输入学号，姓名，成绩中的任意一个参数，返回全部的删除结果\r\n"
+ " ---------------------------------------\r\n"
+ " 建议在删除前进行查询操作，避免误删除（删除操作不可撤销）\r\n");
/**
* Launch the application.
*/
public static void main(Mainframe gra) {
try {
Delete_student dialog = new Delete_student(gra);
dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
dialog.setVisible(true);
dialog.setLocation(392, 180);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Create the dialog.
*/
public Delete_student(Mainframe gra) {
setResizable(false);
this.setTitle("\u8BF7\u8F93\u5165\u9700\u8981\u5220\u9664\u5B66\u751F\u7684\u57FA\u672C\u4FE1\u606F");
setBounds(100, 100, 875, 397);
getContentPane().setLayout(new BorderLayout());
contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
getContentPane().add(contentPanel, BorderLayout.CENTER);
{
JButton delete = new JButton("\u5220\u9664");
delete.setBounds(620, 290, 90, 39);
delete.setFont(new Font("幼圆", Font.PLAIN, 20));
delete.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
status.setText("");
if(no.getText().trim().equals("")&&name.getText().trim().equals("")&&grade.getText().trim().equals("")){
status.setText("请输入数据");
return;
}else
if((!no.getText().trim().equals(""))&&!(name.getText().trim().equals(""))) {
screen.setText(gra.yuheng.studentGroup.delete(no.getText().trim(),name.getText().trim()));
status.setText("删除成功！");
}
else
if(!no.getText().trim().equals(""))
{
screen.setText(gra.yuheng.studentGroup.delete(no.getText().trim(),1));
status.setText("删除成功！");
}
else if(!name.getText().trim().equals("")){
screen.setText(gra.yuheng.studentGroup.delete(name.getText().trim(),2));
status.setText("删除成功！");
}
else if(!grade.getText().trim().equals("")){
screen.setText(gra.yuheng.studentGroup.delete(grade.getText().trim(),3));
status.setText("删除成功！");
}
}
});
contentPanel.setLayout(null);
contentPanel.add(delete);
delete.setActionCommand("OK");
getRootPane().setDefaultButton(delete);
}
{
JButton cancelButton = new JButton("清空");
cancelButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
no.setText("");
grade.setText("");
name.setText("");
status.setText("");
screen.setText("");
}
});
cancelButton.setBounds(720, 290, 90, 39);
cancelButton.setFont(new Font("幼圆", Font.PLAIN, 20));
contentPanel.add(cancelButton);
cancelButton.setActionCommand("Cancel");
}
JPanel panel_4 = new JPanel();
panel_4.setBounds(526, 27, 284, 247);
contentPanel.add(panel_4);
panel_4.setLayout(null);
JPanel stuName = new JPanel();
stuName.setBounds(0, 69, 284, 59);
panel_4.add(stuName);
stuName.setLayout(null);
JLabel lblNewLabel_1 = new JLabel("\u59D3\u540D");
lblNewLabel_1.setBounds(0, 0, 61, 59);
stuName.add(lblNewLabel_1);
lblNewLabel_1.setBackground(Color.WHITE);
lblNewLabel_1.setFont(new Font("方正姚体", Font.PLAIN, 25));
name = new JTextField();
name.setFont(new Font("宋体", Font.BOLD, 19));
name.setBounds(63, 14, 211, 33);
stuName.add(name);
name.setColumns(10);
JPanel stuGrade = new JPanel();
stuGrade.setBounds(0, 124, 284, 59);
panel_4.add(stuGrade);
stuGrade.setLayout(null);
JLabel lblNewLabel_2 = new JLabel("\u6210\u7EE9");
lblNewLabel_2.setBounds(0, 0, 50, 59);
stuGrade.add(lblNewLabel_2);
lblNewLabel_2.setBackground(Color.WHITE);
lblNewLabel_2.setFont(new Font("方正姚体", Font.PLAIN, 25));
grade = new JTextField();
grade.setFont(new Font("宋体", Font.BOLD, 19));
grade.setBounds(63, 19, 211, 33);
stuGrade.add(grade);
grade.setColumns(10);
JPanel stuNO = new JPanel();
stuNO.setBounds(0, 10, 284, 49);
panel_4.add(stuNO);
stuNO.setLayout(null);
JLabel lblNewLabel = new JLabel("\u5B66\u53F7");
lblNewLabel.setBounds(0, 0, 81, 49);
stuNO.add(lblNewLabel);
lblNewLabel.setBackground(Color.WHITE);
lblNewLabel.setFont(new Font("方正姚体", Font.PLAIN, 25));
no = new JTextField();
no.setFont(new Font("宋体", Font.BOLD, 19));
no.setBounds(64, 10, 210, 33);
stuNO.add(no);
no.setColumns(10);
JPanel panel = new JPanel();
panel.setBounds(0, 193, 284, 44);
panel_4.add(panel);
panel.setLayout(null);
status.setForeground(Color.BLACK);
status.setFont(new Font("幼圆", Font.BOLD, 18));
status.setEnabled(false);
status.setEditable(false);
status.setBounds(64, 11, 210, 27);
panel.add(status);
JLabel label = new JLabel("\u72B6\u6001");
label.setBounds(0, 0, 64, 40);
panel.add(label);
label.setBackground(Color.WHITE);
label.setFont(new Font("方正姚体", Font.PLAIN, 25));
screen.setFont(new Font("微软雅黑", Font.PLAIN, 18));
screen.setEditable(false);
screen.setLineWrap(true);
screen.setBounds(10, 58, 458, 271);
contentPanel.add(screen);
JLabel label_1 = new JLabel("\u5B66\u53F7 \u59D3\u540D \u6210\u7EE9");
label_1.setHorizontalAlignment(SwingConstants.LEFT);
label_1.setForeground(Color.BLACK);
label_1.setFont(new Font("微软雅黑", Font.PLAIN, 18));
label_1.setBackground(Color.WHITE);
label_1.setBounds(10, 27, 458, 24);
contentPanel.add(label_1);
JButton button = new JButton("\u67E5\u8BE2");
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
status.setText("");
if(no.getText().trim().equals("")&&name.getText().trim().equals("")&&grade.getText().trim().equals("")){
status.setText("请输入数据");
return;
}else
if((!no.getText().trim().equals(""))&&!(name.getText().trim().equals(""))) {
screen.setText(gra.yuheng.studentGroup.lookup(no.getText().trim(),name.getText().trim()));
status.setText("查询成功！");
}
else
if(!no.getText().trim().equals(""))
{
screen.setText(gra.yuheng.studentGroup.lookup(no.getText().trim(),1));
status.setText("查询成功！");
}
else if(!name.getText().trim().equals("")){
screen.setText(gra.yuheng.studentGroup.lookup(name.getText().trim(),2));
status.setText("查询成功！");
}
else if(!grade.getText().trim().equals("")){
screen.setText(gra.yuheng.studentGroup.lookup(grade.getText().trim(),3));
status.setText("查询成功！");
}
}
});
button.setFont(new Font("幼圆", Font.PLAIN, 20));
button.setActionCommand("OK");
button.setBounds(526, 290, 84, 39);
contentPanel.add(button);
}
}
4.查询记录 Query_students.java（对话框）
package graphical;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import studentAndFileAction.Student;
import javax.swing.JLabel;
import javax.swing.JTextField;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.ImageIcon;
import javax.swing.JTextArea;
import javax.swing.SwingConstants;
public class Query_students extends JDialog {
private final JPanel contentPanel = new JPanel();
private JTextField no;
private JTextField name;
private JTextField grade;
JTextArea status = new JTextArea();
JTextArea screen = new JTextArea(
"\r\n\r\n"
+ "注意：本程序提供精确匹配和模糊匹配两种查询方式 \r\n"
+ "1.精准匹配模式\r\n"
+ " 输入学号，姓名等两项参数，返回查询结果。\r\n"
+ "2.模糊匹配模式\r\n"
+ " 输入学号，姓名，成绩中的任意一个参数，返回全部的查询结果\r\n");
/**
* Launch the application.
*/
public static void main(Mainframe gra) {
try {
Query_students dialog = new Query_students(gra);
dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
dialog.setVisible(true);
dialog.setLocation(392, 180);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Create the dialog.
*/
public Query_students(Mainframe gra) {
setResizable(false);
this.setTitle("\u8BF7\u8F93\u5165\u9700\u8981\u67E5\u8BE2\u5B66\u751F\u7684\u57FA\u672C\u4FE1\u606F");
setBounds(100, 100, 763, 390);
getContentPane().setLayout(new BorderLayout());
contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
getContentPane().add(contentPanel, BorderLayout.CENTER);
{
JButton okButton = new JButton("确定");
okButton.setBounds(499, 289, 96, 40);
okButton.setFont(new Font("幼圆", Font.PLAIN, 28));
okButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
status.setText("");
if(no.getText().trim().equals("")&&name.getText().trim().equals("")&&grade.getText().trim().equals("")){
status.setText("请输入数据");
return;
}else
if((!no.getText().trim().equals(""))&&!(name.getText().trim().equals(""))) {
screen.setText(gra.yuheng.studentGroup.lookup(no.getText().trim(),name.getText().trim()));
status.setText("查询成功！");
}
else
if(!no.getText().trim().equals(""))
{
screen.setText(gra.yuheng.studentGroup.lookup(no.getText().trim(),1));
status.setText("查询成功！");
}
else if(!name.getText().trim().equals("")){
screen.setText(gra.yuheng.studentGroup.lookup(name.getText().trim(),2));
status.setText("查询成功！");
}
else if(!grade.getText().trim().equals("")){
screen.setText(gra.yuheng.studentGroup.lookup(grade.getText().trim(),3));
status.setText("查询成功！");
}
}
});
contentPanel.setLayout(null);
contentPanel.add(okButton);
okButton.setActionCommand("OK");
getRootPane().setDefaultButton(okButton);
}
{
JButton cancelButton = new JButton("清空");
cancelButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
no.setText("");
grade.setText("");
name.setText("");
status.setText("");
screen.setText("");
}
});
cancelButton.setBounds(635, 290, 102, 39);
cancelButton.setFont(new Font("幼圆", Font.PLAIN, 28));
contentPanel.add(cancelButton);
cancelButton.setActionCommand("Cancel");
}
JPanel panel_4 = new JPanel();
panel_4.setBounds(502, 27, 216, 247);
contentPanel.add(panel_4);
panel_4.setLayout(null);
JPanel stuName = new JPanel();
stuName.setBounds(0, 69, 216, 59);
panel_4.add(stuName);
stuName.setLayout(null);
JLabel lblNewLabel_1 = new JLabel("\u59D3\u540D");
lblNewLabel_1.setBounds(0, 0, 61, 59);
stuName.add(lblNewLabel_1);
lblNewLabel_1.setBackground(Color.WHITE);
lblNewLabel_1.setFont(new Font("方正姚体", Font.PLAIN, 25));
name = new JTextField();
name.setFont(new Font("宋体", Font.BOLD, 19));
name.setBounds(63, 14, 153, 33);
stuName.add(name);
name.setColumns(10);
JPanel stuGrade = new JPanel();
stuGrade.setBounds(0, 124, 216, 59);
panel_4.add(stuGrade);
stuGrade.setLayout(null);
JLabel lblNewLabel_2 = new JLabel("\u6210\u7EE9");
lblNewLabel_2.setBounds(0, 0, 50, 59);
stuGrade.add(lblNewLabel_2);
lblNewLabel_2.setBackground(Color.WHITE);
lblNewLabel_2.setFont(new Font("方正姚体", Font.PLAIN, 25));
grade = new JTextField();
grade.setFont(new Font("宋体", Font.BOLD, 19));
grade.setBounds(63, 19, 153, 33);
stuGrade.add(grade);
grade.setColumns(10);
JPanel stuNO = new JPanel();
stuNO.setBounds(0, 10, 216, 49);
panel_4.add(stuNO);
stuNO.setLayout(null);
JLabel lblNewLabel = new JLabel("\u5B66\u53F7");
lblNewLabel.setBounds(0, 0, 81, 49);
stuNO.add(lblNewLabel);
lblNewLabel.setBackground(Color.WHITE);
lblNewLabel.setFont(new Font("方正姚体", Font.PLAIN, 25));
no = new JTextField();
no.setFont(new Font("宋体", Font.BOLD, 19));
no.setBounds(64, 10, 152, 33);
stuNO.add(no);
no.setColumns(10);
JPanel panel = new JPanel();
panel.setBounds(0, 193, 216, 44);
panel_4.add(panel);
panel.setLayout(null);
status.setForeground(Color.BLACK);
status.setFont(new Font("幼圆", Font.BOLD, 18));
status.setEnabled(false);
status.setEditable(false);
status.setBounds(64, 11, 152, 27);
panel.add(status);
JLabel label = new JLabel("\u72B6\u6001");
label.setBounds(0, 0, 64, 40);
panel.add(label);
label.setBackground(Color.WHITE);
label.setFont(new Font("方正姚体", Font.PLAIN, 25));
screen.setFont(new Font("微软雅黑", Font.PLAIN, 18));
screen.setEditable(false);
screen.setLineWrap(true);
screen.setBounds(10, 58, 458, 271);
contentPanel.add(screen);
JLabel label_1 = new JLabel("\u5B66\u53F7 \u59D3\u540D \u6210\u7EE9");
label_1.setHorizontalAlignment(SwingConstants.LEFT);
label_1.setForeground(Color.BLACK);
label_1.setFont(new Font("微软雅黑", Font.PLAIN, 18));
label_1.setBackground(Color.WHITE);
label_1.setBounds(10, 27, 458, 24);
contentPanel.add(label_1);
}
}
5.修改记录 Alter_students_info.java（对话框）
package graphical;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import studentAndFileAction.Student;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.ImageIcon;
import javax.swing.JTextArea;
import javax.swing.SwingConstants;
public class Alter_students_info extends JDialog {
private final JPanel contentPanel = new JPanel();
private JTextField no;
private JTextField name;
private JTextField grade;
JTextArea status = new JTextArea();
JTextArea screen = new JTextArea(
"\r\n"
+ "注意：对学生信息进行修改 \r\n"
+ "使用方法\r\n"
+ " 输入学号，再输入姓名和成绩，把学号对应的信息修改\r\n"
+ " 建议在修改前进行查询操作，避免误修改（修改操作不可撤销）\r\n");
/**
* Launch the application.
*/
public static void main(Mainframe gra) {
try {
Alter_students_info dialog = new Alter_students_info(gra);
dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
dialog.setVisible(true);
dialog.setLocation(392, 180);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Create the dialog.
*/
public Alter_students_info(Mainframe gra) {
setResizable(false);
this.setTitle("\u8BF7\u8F93\u5165\u9700\u8981\u4FEE\u6539\u5B66\u751F\u7684\u57FA\u672C\u4FE1\u606F");
setBounds(100, 100, 875, 470);
getContentPane().setLayout(new BorderLayout());
contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
getContentPane().add(contentPanel, BorderLayout.CENTER);
{
JButton delete = new JButton("\u4FEE\u6539");
delete.setBounds(620, 347, 90, 39);
delete.setFont(new Font("幼圆", Font.PLAIN, 20));
delete.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
status.setText("");
if(no.getText().trim().equals("")){
status.setText("请输入数据");
return;
}else
if(!no.getText().trim().equals("")){
screen.setText(gra.yuheng.studentGroup.modify(no.getText().trim(),name.getText().trim(),grade.getText().trim()));
status.setText("修改成功！");
}
}
});
contentPanel.setLayout(null);
contentPanel.add(delete);
delete.setActionCommand("OK");
getRootPane().setDefaultButton(delete);
}
{
JButton cancelButton = new JButton("清空");
cancelButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
no.setText("");
grade.setText("");
name.setText("");
status.setText("");
screen.setText("");
}
});
cancelButton.setBounds(720, 347, 90, 39);
cancelButton.setFont(new Font("幼圆", Font.PLAIN, 20));
contentPanel.add(cancelButton);
cancelButton.setActionCommand("Cancel");
}
JPanel panel_4 = new JPanel();
panel_4.setBounds(526, 25, 284, 312);
contentPanel.add(panel_4);
panel_4.setLayout(null);
JPanel stuName = new JPanel();
stuName.setBounds(0, 134, 284, 59);
panel_4.add(stuName);
stuName.setLayout(null);
JLabel lblNewLabel_1 = new JLabel("\u59D3\u540D");
lblNewLabel_1.setBounds(0, 0, 61, 59);
stuName.add(lblNewLabel_1);
lblNewLabel_1.setBackground(Color.WHITE);
lblNewLabel_1.setFont(new Font("方正姚体", Font.PLAIN, 25));
name = new JTextField();
name.setFont(new Font("宋体", Font.BOLD, 19));
name.setBounds(63, 14, 211, 33);
stuName.add(name);
name.setColumns(10);
JPanel stuGrade = new JPanel();
stuGrade.setBounds(0, 189, 284, 59);
panel_4.add(stuGrade);
stuGrade.setLayout(null);
JLabel lblNewLabel_2 = new JLabel("\u6210\u7EE9");
lblNewLabel_2.setBounds(0, 0, 50, 59);
stuGrade.add(lblNewLabel_2);
lblNewLabel_2.setBackground(Color.WHITE);
lblNewLabel_2.setFont(new Font("方正姚体", Font.PLAIN, 25));
grade = new JTextField();
grade.setFont(new Font("宋体", Font.BOLD, 19));
grade.setBounds(63, 19, 211, 33);
stuGrade.add(grade);
grade.setColumns(10);
JPanel stuNO = new JPanel();
stuNO.setBounds(0, 49, 284, 49);
panel_4.add(stuNO);
stuNO.setLayout(null);
JLabel lblNewLabel = new JLabel("\u5B66\u53F7");
lblNewLabel.setBounds(0, 0, 81, 49);
stuNO.add(lblNewLabel);
lblNewLabel.setBackground(Color.WHITE);
lblNewLabel.setFont(new Font("方正姚体", Font.PLAIN, 25));
no = new JTextField();
no.setFont(new Font("宋体", Font.BOLD, 19));
no.setBounds(64, 10, 210, 33);
stuNO.add(no);
no.setColumns(10);
JPanel panel = new JPanel();
panel.setBounds(0, 258, 284, 44);
panel_4.add(panel);
panel.setLayout(null);
status.setForeground(Color.BLACK);
status.setFont(new Font("幼圆", Font.BOLD, 18));
status.setEnabled(false);
status.setEditable(false);
status.setBounds(64, 11, 210, 27);
panel.add(status);
JLabel label = new JLabel("\u72B6\u6001");
label.setBounds(0, 0, 64, 40);
panel.add(label);
label.setBackground(Color.WHITE);
label.setFont(new Font("方正姚体", Font.PLAIN, 25));
JLabel label_2 = new JLabel("\u8F93\u5165\u67E5\u8BE2\u56E0\u5B50");
label_2.setFont(new Font("宋体", Font.PLAIN, 16));
label_2.setBounds(0, 10, 132, 37);
panel_4.add(label_2);
JLabel label_3 = new JLabel("\u8F93\u5165\u4FEE\u6539\u540E\u7684\u4FE1\u606F");
label_3.setFont(new Font("宋体", Font.PLAIN, 16));
label_3.setBounds(0, 105, 184, 29);
panel_4.add(label_3);
screen.setFont(new Font("微软雅黑", Font.PLAIN, 18));
screen.setEditable(false);
screen.setLineWrap(true);
screen.setBounds(10, 58, 458, 328);
contentPanel.add(screen);
JLabel label_1 = new JLabel("\u5B66\u53F7 \u59D3\u540D \u6210\u7EE9");
label_1.setHorizontalAlignment(SwingConstants.LEFT);
label_1.setForeground(Color.BLACK);
label_1.setFont(new Font("微软雅黑", Font.PLAIN, 18));
label_1.setBackground(Color.WHITE);
label_1.setBounds(10, 27, 458, 24);
contentPanel.add(label_1);
JButton button = new JButton("\u67E5\u8BE2");
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
status.setText("");
if(no.getText().trim().equals("")&&name.getText().trim().equals("")&&grade.getText().trim().equals("")){
status.setText("请输入数据");
return;
}else
if((!no.getText().trim().equals(""))&&!(name.getText().trim().equals(""))) {
screen.setText(gra.yuheng.studentGroup.lookup(no.getText().trim(),name.getText().trim()));
status.setText("查询成功！");
}
else
if(!no.getText().trim().equals(""))
{
screen.setText(gra.yuheng.studentGroup.lookup(no.getText().trim(),1));
status.setText("查询成功！");
}
else if(!name.getText().trim().equals("")){
screen.setText(gra.yuheng.studentGroup.lookup(name.getText().trim(),2));
status.setText("查询成功！");
}
else if(!grade.getText().trim().equals("")){
screen.setText(gra.yuheng.studentGroup.lookup(grade.getText().trim(),3));
status.setText("查询成功！");
}
}
});
button.setFont(new Font("幼圆", Font.PLAIN, 20));
button.setActionCommand("OK");
button.setBounds(526, 347, 84, 39);
contentPanel.add(button);
}
}
资源文件：图标与标题（放于工程文件src下）
img（图标文件）
工程文件：
作业12-图形界面于衡
终于敲完啦，满满的自豪感
棒棒哒