main.java

来自「电子与信息工程学生信息管理系统」· Java 代码 · 共 1,558 行 · 第 1/5 页

            if(obj==button_last)label.setText("the table last page!");
            if(obj==button_prev)label.setText("the previous page!");
            if(obj==button_next)label.setText("the next page!");
            if(obj==button_sortId)label.setText("you have sorted  the student with id!");
            if(obj==button_sortName)label.setText("you have sorted the student with name!");
            if(obj==button_sortSex)label.setText("you have sorted  the student with sex!");
            if(obj==button_sortAge)label.setText("you have sorted the student with age!");
            if(obj==button_sortGrade)label.setText("you have sorted  the student with grade!");
            if(obj==button_sortGclass)label.setText("you have sorted the student with class!");
        }
        public void focusLost(FocusEvent e){
        }
    }
    class TextName extends KeyAdapter{   
        public void keyTyped(KeyEvent e){
            char ch = e.getKeyChar();
            if(((ch<'Z'||ch=='Z')&&(ch>'A'||ch=='A'))||((ch<'z'||ch=='z'))&&((ch>'a'||ch=='a')||(ch==' ')));
            else e.consume();
        }
    }
    class TextId extends KeyAdapter{   
        public void keyTyped(KeyEvent e){
            char ch = e.getKeyChar();
            if(ch<'0'||ch>'9')e.consume();
        }
    }    
}
class ButtonAction extends MyComponent{
        Student one = new Student();
        Student two = new Student();
        Student three = new Student();
        Student four = new Student();
        Student first = new Student();
        Student prev = new Student();
        Student next = new Student();
        RandomAccessFile raf;
        ButtonEvent btn;
        PopupMenuEvent menu;
    public ButtonAction(){
           one.next=two;
           one.prev=null;
           two.next=null;
           two.prev=one;
//***********************************************read student node from file 
           try{    
               raf = new RandomAccessFile("2.txt","rw");
               do{
                   listlenth++;
                   two.id = raf.readLine();
                   two.name = raf.readLine();
                   two.sex = raf.readLine();
                   two.age = raf.readLine();
                   two.grade = raf.readLine();
                   two.gclass = raf.readLine();
                   one.next=new Student();//build new student node begin
                   two.prev=one.next;
                   one.next.next=two;
                   one.next.prev=one;
                   two=one.next;//build new student node end  
               }while(!two.next.id.equals("!!!"));    
               listlenth--;
               raf.close();
               two.next.id="";
               two.next.name="";
               two.next.sex="";
               two.next.age="";
               two.next.grade="";
               two.next.gclass="";
               one = two;
               two = two.next;
               one.prev=null;
               first=two.next;
               for(int i=0;i<listlenth-1;i++){first=first.next;}
           }catch(FileNotFoundException filea){return;}catch(IOException dfs){return;}
           pageCombo=new String[listlenth/20+2];
           pageCombo[0] ="--" ;
           for(int i=1;i<listlenth/20+2;i++){
               pageCombo[i]=String.valueOf(i);
           }
          comboBox_page=new JComboBox(pageCombo);
          paneCenter3.add(comboBox_page);
          paneCenter3.add(label_page);
//*******************************************read student node from file
//*******************************************display the student in table
           three = two.next;
           page=(listlenth/20)+1;
           label_page.setText(String.valueOf(page)+"/"+String.valueOf(listlenth/20+1));
           k=listlenth%20;
           for(int i=0;i<k-1;i++){three=three.next;}
           for(int p=0;p<k;three=three.prev){
               data[p][0] = three.id;
               data[p][0] = three.id;
               data[p][1] = three.name;
               data[p][2] = three.sex;
               data[p][3] = three.age;
               data[p][4] = three.grade;
               data[p][5] = three.gclass;
               p++;
           }
           table.repaint();
           i=k;
           k=0;
//*******************************************display the student in table 
           table.addMouseListener(new java.awt.event.MouseAdapter() {//table add mouselistener
              public void mousePressed(MouseEvent e){
                  table_mousePressed(e);
              } 
           });
           table.addMouseListener(new java.awt.event.MouseAdapter() {
              public void mouseReleased(MouseEvent e){
                  table_mouseReleased(e);
              } 
           });
           menu = new PopupMenuEvent();
           menuEdit.addActionListener(menu);
           menuDelete.addActionListener(menu);//table add mouselistener
           btn = new ButtonEvent();//button add ActionListener
           comboBox_page.addActionListener(btn);
           button_input.addActionListener(btn);
           button_search.addActionListener(btn);
           //button_searchId.addActionListener(btn);
           //button_searchName.addActionListener(btn);
           button_sortId.addActionListener(btn);
           button_sortName.addActionListener(btn);
           button_sortSex.addActionListener(btn);
           button_sortAge.addActionListener(btn);
           button_sortGrade.addActionListener(btn);
           button_sortGclass.addActionListener(btn);
           button_next.addActionListener(btn);
           button_prev.addActionListener(btn);
           button_first.addActionListener(btn);
           button_last.addActionListener(btn);//button add ActionListener
           try{raf = new RandomAccessFile("E:\\2.sel","rw");
           }catch(FileNotFoundException filea){return;}
    }
    void shuaxin(){for(int j=0;j<20;j++){data[j][0] = "";data[j][1] = "";data[j][2] = "";data[j][3] = "";data[j][4] = "";data[j][5] = "";}table.repaint();}
    void displayTable(int page){//Student first,page
        three=first;
        label_page.setText(String.valueOf(page)+"/"+String.valueOf(listlenth/20+1));
        for(int j=(page-1)*20;j>0&&three!=null;j--){three=three.prev;}
        for(int i=0;i<20&&three!=null;i++){
                    data[i][0] = three.id;
                    data[i][1] = three.name;
                    data[i][2] = three.sex;
                    data[i][3] = three.age;
                    data[i][4] = three.grade;
                    data[i][5] = three.gclass;
                    three=three.prev;
       }table.repaint(); 
    }
    void table_mousePressed(MouseEvent e){
       if(SwingUtilities.isRightMouseButton(e)){
           Point point = e.getPoint();
           row = table.rowAtPoint(point);
           column = table.rowAtPoint(point);
           table.changeSelection(row,column,false,false);
           label.setText("you have selected the row "+row);
       }        
    }
    void table_mouseReleased(MouseEvent e){
       if(e.isPopupTrigger()){
           showPopupMenu(e.getX(),e.getY());
       } 
    }
    void showPopupMenu(int x,int y){
        tablePopupMenu.show(table,x,y);
    }
    void writeFile( ){//Student two
        four=two;
        try{raf = new RandomAccessFile("2.txt","rw");}catch(FileNotFoundException filea){return;}
        try{
                for(int i=0;i<listlenth;i++){
                raf.writeBytes(four.next.id+"\r\n");
                raf.writeBytes(four.next.name+"\r\n");
                raf.writeBytes(four.next.sex+"\r\n");
                raf.writeBytes(four.next.age+"\r\n");
                raf.writeBytes(four.next.grade+"\r\n");
                raf.writeBytes(four.next.gclass+"\r\n");
                four=four.next; 
                }
                raf.writeBytes("!!!\r\n");
                raf.close();
        }catch(IOException eds){}
    }
    void comboBoxPage(){
           paneCenter3.remove(comboBox_page);
           pageCombo=new String[listlenth/20+2];
           pageCombo[0] ="--" ;
           for(int i=1;i<listlenth/20+2;i++){
               pageCombo[i]=String.valueOf(i);
           }
          comboBox_page=new JComboBox(pageCombo);
          paneCenter3.add(comboBox_page);
          paneCenter3.add(label_page);
          comboBox_page.addActionListener(btn);
    }
    void delete(){
                   if(listlenth==1){
                       two.next=null;
                       first=null;
                       listlenth--;i--;
                       writeFile();
                       shuaxin();
                       return;
                    }
                   if(page==1&&row==0){                   
                    first=first.prev;
                    first.next=null;
                    listlenth--;i--;
                    writeFile();
                    shuaxin();
                    displayTable(1);
                     return;
                    }
                    if(listlenth==(1+row+(page-1)*20)){two.next=two.next.next;two.next.prev=two;listlenth--;i--;writeFile();shuaxin();displayTable(page);return;}
                    three=first;
                    for(int k=0;k<(page-1)*20+row;k++){three=three.prev; } 
                    four=three.next;
                    three.prev.next=four;
                    four.prev=three.prev;
                    i--;listlenth--;
                    writeFile();
                    shuaxin();
                    displayTable(page);
}
    class ButtonEvent implements ActionListener{
        public void actionPerformed(ActionEvent e){
            Object obj = e.getSource();
//*******************************************************************buton_input action
            shuaxin();
            if(comboBox_page.getSelectedIndex()!=0)page=comboBox_page.getSelectedIndex();
            displayTable(page);           
            if(obj==button_input){ 
                two.id=textId.getText();
                if (two.id.length()==0||two.id.length()>9){
                    Object[] options = {"yes"};
                    String str = "id lenth wrong";
                    JOptionPane.showOptionDialog(null,str,"warning",JOptionPane.DEFAULT_OPTION,
                    JOptionPane.WARNING_MESSAGE,null,options,options[0]);
                    return;
                }
                for(three=two;three.next!=null;three=three.next){
                    if( two.id.equals(three.next.id)){
                    Object[] options = {"yes"};
                    String str = "the id exist!";
                    JOptionPane.showOptionDialog(null,str,"warning",JOptionPane.DEFAULT_OPTION,
                    JOptionPane.WARNING_MESSAGE,null,options,options[0]);
                    two.id=null;
                    return;
                    }
                }
                two.name=textName.getText();
                if (two.name.length()==0){
                    Object[] options = {"yes"};
                    String str = "name lenth wrong!";
                    JOptionPane.showOptionDialog(null,str,"warning",JOptionPane.DEFAULT_OPTION,
                    JOptionPane.WARNING_MESSAGE,null,options,options[0]);
                    return;
                }
                two.age=ageCombo[comboBox_age.getSelectedIndex()];
                two.sex = sexCombo[comboBox_sex.getSelectedIndex()];
                two.grade = gradeCombo[comboBox_grade.getSelectedIndex()];
                two.gclass = classCombo[comboBox_class.getSelectedIndex()];
                one.next=new Student();//build new student node begin
                two.prev=one.next;
                one.next.next=two;
                one.next.prev=one;
                two=one.next;//build new student node end
                listlenth++;
                if(listlenth==1){first=two.next;first.next=null;}
                writeFile();
                shuaxin();
                page=listlenth/20+1;
                displayTable(page);
                textId.setText("");
                textName.setText("");
                comboBoxPage();
            }
//*****************************************************************button_input action
//*****************************************************************button_prev action
            if(obj==button_prev){
                if(page==1) return;
                page--;
                shuaxin();
                displayTable(page);
                comboBox_page.setSelectedIndex(page);
            }
//****************************************************************************button_prev action
//****************************************************************************button_next action
            if(obj==button_next){    
                next = two.next;
                if(page==(listlenth/20+1)) return;
                page++;
                shuaxin();
                displayTable(page);
                comboBox_page.setSelectedIndex(page);
            }
//******************************************************************************button_next action 
//******************************************************************************button_sortId action
            if(obj==button_sortId){
               click++;
               click=click%2; 
               if(listlenth==1||listlenth==0)return;
               if(listlenth==2){
                   if(Integer.parseInt(two.next.id)<Integer.parseInt(first.id)){                       
                       first.next=two.next;
                       first.prev=two;
                       two.next.next=null;
                       two.next.prev=first;
                       two.next=first;
                       first=first.next;
                       shuaxin();