servermainframe.java

学生管理系统

    //表格初始化
    public void initTable(){
        m=new DefaultTableModel(data,name);
        table=new JTable(m);
        table.setBackground(new Color(240,248,255));
        table.setForeground(new Color(67,26,5));
        //设置各列宽度
        TableColumn column;
        column=table.getColumnModel().getColumn(0); 
        column.setPreferredWidth(100);
        column=table.getColumnModel().getColumn(1);
        column.setPreferredWidth(45);
        column=table.getColumnModel().getColumn(2);
        column.setPreferredWidth(15);
        column=table.getColumnModel().getColumn(3);
        column.setPreferredWidth(80);
        column=table.getColumnModel().getColumn(4);
        column.setPreferredWidth(45);
        column=table.getColumnModel().getColumn(5);
        column.setPreferredWidth(85);
        column=table.getColumnModel().getColumn(6);
        column.setPreferredWidth(14);
        column=table.getColumnModel().getColumn(7);
        column.setPreferredWidth(150);
        table.setFont(new Font("宋体",Font.PLAIN,12));
        table.setGridColor(new Color(31,86,216)); 
        table.setSelectionBackground(new Color(239,227,253));
        table.setSelectionForeground(new Color(253,29,11));
    }
    
    //菜单初始化
    public void initMenu(){
        fileMenu.add(addMenuItem);
        addMenuItem.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e){
                 addEvent(); 
            }
        });
        
        fileMenu.add(seeMenuItem);
        seeMenuItem.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e){
               vector=FileEvent.getStudent(
                  String.valueOf(list.getSelectedValue()));        //获得所有学生数据信息  
              setData(vector);
              
            }
        }); 
        fileMenu.addSeparator();
        fileMenu.add(exitMenuItem);  
        exitMenuItem.addActionListener(new ActionListener(){
           public void actionPerformed(ActionEvent e){
               System.exit(0);
           }
        });  
       
        bianjiMenu.add(delMenuItem);
        delMenuItem.addActionListener(new ActionListener(){
           public void actionPerformed(ActionEvent e){
               deleteEvent();
           }
        });
        bianjiMenu.add(resetMenuItem);
        resetMenuItem.addActionListener(new ActionListener(){
           public void actionPerformed(ActionEvent e){
               resetEvent();
           }
        });
        editMenu.add(arrayItem1);
        arrayItem1.addActionListener(new ActionListener(){
           public void actionPerformed(ActionEvent e){
               arrayByStudentId();
           }
        });
        editMenu.add(arrayItem2);
        arrayItem2.addActionListener(new ActionListener(){
           public void actionPerformed(ActionEvent e){
               arrayByStudentName();
           }
        });
        editMenu.add(arrayItem3);
        arrayItem3.addActionListener(new ActionListener(){
           public void actionPerformed(ActionEvent e){
               arrayByStudentClass();
           }
        });
        editMenu.addSeparator();
        searchMenu.add(searchItem1);    //查找子菜单
        searchItem1.addActionListener(new ActionListener(){  
            public void actionPerformed(ActionEvent e){
               searchById();
               
            }
        });
        searchMenu.add(searchItem2);
        searchItem2.addActionListener(new ActionListener(){  
            public void actionPerformed(ActionEvent e){
               searchByName();    //按姓名查找
            }
        });
        editMenu.add(searchMenu);
        bar.add(fileMenu);
        bar.add(bianjiMenu);
        bar.add(editMenu);
    }

  
    //增加新的学生信息
    public void addEvent(){
        StudentAddFrame s=new StudentAddFrame();
        if(!(list.isSelectionEmpty()))
           s.text[3].setText(list.getSelectedValue().toString());
        s.show();
        s.pack();
    }

    //设置数据项(同时更新表格)
    public static void setData(Vector v){
        data=new Object[v.size()][name.length];            
        for(int i=0;i<v.size();i++){
          data[i][0]=((Student)v.elementAt(i)).getStudentId();
          data[i][1]=((Student)v.elementAt(i)).getStudentName();
          data[i][2]=((Student)v.elementAt(i)).getStudentSex();
          data[i][3]=((Student)v.elementAt(i)).getStudentMajor();
          data[i][4]=((Student)v.elementAt(i)).getStudentClass();
          data[i][5]=((Student)v.elementAt(i)).getStudentLesson();
          data[i][6]=((Student)v.elementAt(i)).getStudentMark();          
          data[i][7]=((Student)v.elementAt(i)).getStudentPhone(); 
        }
        System.out.println("data size:"+data.length);
        tableUpdate();
    }
   
    //删除表格中所有项
    public static void clearTable(){
        for(int i=0;i<m.getRowCount();i++)  //移出当前表中所有元素
    	  while(m.getRowCount()!=0)  
       	    m.removeRow(i); 
    }
    
    //带参数的更新表格
    public static void updateTable(Object[][] d){
         data=d;
         tableUpdate();
    }
    //更新表格
    public static void tableUpdate(){ 
      clearTable();
      System.out.println("vector size:"+vector.size());
      for(int j=0;j<data.length;j++) 
          m.addRow(data[j]);
    }
    
    //删除选中的表格项
    public void deleteEvent(){
        int row=table.getSelectedRow();
        if(row==-1){
           MsgDialog dialog=new MsgDialog(this,"请选择要删除的项!");     //如果为选中所要删除的项，则弹出出错对话框    
        } 
        else{
           String del=((Student)(vector.elementAt(row))).getStudentName(); 
           String maj=((Student)(vector.elementAt(row))).getStudentMajor();
           vector.removeElementAt(row); 
           m.removeRow(row);
           FileEvent.deleteStudent(maj,row);
           FileEvent.saveHistoryInfor(del,1);   //保存历史纪录
           setData(FileEvent.getStudent(maj)); 
        }
    }
   
    //修改选中的表格项
    public void resetEvent(){
         int row=table.getSelectedRow();
         if(row==-1){
           MsgDialog dialog=new MsgDialog(this,"请选择要修改的项!");  
         }
         else{
           String m=(((Student)(vector.elementAt(table.getSelectedRow()))).getStudentMajor());
           System.out.println("要修改的专业名为:"+m);
           ResetStudentFrame resetFrame=new ResetStudentFrame(vector,m,row);
           for(int i=0;i<8;i++)
              resetFrame.text[i].setText(data[row][i].toString());
           resetFrame.setLocation(260,280);
         }   
    }  
 
    //当增加新的学生信息后，更新列表中的项
    public static void updateList(Vector listname){    
        listModel.removeAllElements();
        for(int j=0;j<listname.size();j++) 
           listModel.addElement(listname.elementAt(j)); 
    }

    //删除列表中的项
    public  void deleteListItem(){
        Object object;
        String delitem=list.getSelectedValue().toString();
        Vector majorvector=new Vector();
        majorvector=FileEvent.getFileName();
        int index=majorvector.indexOf((Object)delitem); 
        listDelBtn.setEnabled(false);
        
        File file=new File("com/herb/server/Infor/student//"+delitem+".txt");
        FileDeleteDialog deletedialog=new FileDeleteDialog(this,file);
        if(FileDeleteDialog.deleteNow()){         //如果返回为真，则删除选项
           listModel.remove(index);
           majorvector.remove(index);
           FileEvent.saveFileName(majorvector);   //保存修改后的结果
        } 
        else
           listDelBtn.setEnabled(true);
        deletedialog.setResizable(false);
     }
 
    //按字符串排序
    public static void arrayByString(int n){
       int row=data.length;
    	Object temp;
    	for(int i=0;i<row-1;i++){
    		for(int j=0;j<row-1;j++){
    	   	 if((String.valueOf(data[j][n]).compareToIgnoreCase
    	   	 		      (String.valueOf(data[j+1][n])))>0){
    	   	   for(int z=0;z<8;z++){
        	 	temp=data[j][z];
        	 	data[j][z]=data[j+1][z];
        	 	data[j+1][z]=temp;
        	   }                            
    	   	 }
    		} 
    	}	
        tableUpdate(); 
    }
  
   //排序后保存信息
   public static void saveInforAfterArray(){
       Vector v=new Vector();
       for(int i=0;i<data.length;i++){
         int j=0;       
         Vector vv=new Vector(); 
         while(j<name.length) 
            vv.add(data[i][j++].toString()); 
         System.out.println("@ "+vv.toString());
        
         Student student=new Student((String)vv.elementAt(0),(String)vv.elementAt(1),
                                  (String)vv.elementAt(2),(String)vv.elementAt(3),
                                  (String)vv.elementAt(4),(String)vv.elementAt(5),
                                  (String)vv.elementAt(6),(String)vv.elementAt(7));
         v.add(student);
        }
      String m=((Student)v.elementAt(0)).getStudentMajor();  
      FileEvent.saveStudentInfor(m,v);
      
    }

    //按学号排序
    public  void arrayByStudentId(){
      if(table.getRowCount()==0)
         arrayWarn();
      else{  
        int row=data.length;
    	Object temp;
    	for(int i=0;i<row-1;i++){
    	   for(int j=0;j<row-1;j++){
               String a=String.valueOf(data[j][0]);
    	       String b=String.valueOf(data[j+1][0]);
               int aa,bb;
    	       if(a.equals(""))    
                    a=new String("0");    //如果输入“”，则会产生异常
               if(b.equals(""))    
                    b=new String("0"); 	 
               aa=Integer.parseInt(a);
    	       bb=Integer.parseInt(b);
               if(aa>bb){ 
    	           for(int z=0;z<8;z++){
                       temp=data[j][z];
                       data[j][z]=data[j+1][z];
                       data[j+1][z]=temp;
                   }
               }                            
    	    }
         } 
        tableUpdate(); 
        saveInforAfterArray();
      }
    }

   //按班级排序
    public  void arrayByStudentClass(){  
      if(table.getRowCount()==0)
         arrayWarn();
      else{  
         arrayByString(4);   
         saveInforAfterArray();     
      }
    }

    //按姓名排序
    public void arrayByStudentName(){
      if(table.getRowCount()==0)
         arrayWarn();
      else{
       arrayByString(1);  
       saveInforAfterArray();
      }
    }
    
    //按姓名查找
    public void searchByName(){
       new SearchFrame(this,2,"姓名");
       setBtnEnabled(false);
    }
    
   //按学号查找
    public void searchById(){
       new SearchFrame(this,1,"学号");
       setBtnEnabled(false);
    }
 
    //当选择查询时,因为技术原因,无法解决在查询状态下依然能做这些操作,为了
    //避免出现错误,故将这些按钮设为不可用状态
    public void setBtnEnabled(boolean n){
       delBtn.setEnabled(n);
       xiuBtn.setEnabled(n);
       paixuBtn1.setEnabled(n);   //设为false,否则会有不可预知的错误
       paixuBtn2.setEnabled(n);
       paixuBtn3.setEnabled(n);
       dlBtn.setEnabled(n);
       resetBtn.setEnabled(n);
       array1.setEnabled(n);
       array2.setEnabled(n);
       array3.setEnabled(n);
       arrayItem1.setEnabled(n);
       arrayItem2.setEnabled(n);
       arrayItem3.setEnabled(n);
    }

    public void arrayWarn(){
       new MsgDialog(this,"请先双击系名列表中的项,再进行查找!");
    }
 
    public static void main(String args[]){
      try{
            UIManager.setLookAndFeel(
                  UIManager.getSystemLookAndFeelClassName());
         }catch(Exception e){}
      new ServerMainFrame();
    } 

   
 }