java学生信息管理系统MVC架构详解

/*  * @FileName: Student.class  * @version:1.0  * @author:nazi  * 描述：模型层  * */ import java.io.Serializable;  /*  * Summary: Student类实现序列化接口，用于对象的保存  * @author：nazi  * @version:1.0  * */ public class Student implements Serializable {   //序列化id   private static final long serialVersionUID = 9088453456517873574L;   int num;   String name;   String sex;   int age;   float grade;      public Student(int num ,String nameString,String sexString,int g,float f){     this.num =num;     name = nameString;     sex =sexString;     age =g;     grade =f;   }         public int getNum(){     return num;   }    public String getName(){     return name;   }    public String getSex(){     return sex;   }    public int getAge(){     return age;   }    public float getGrades(){     return grade;   }      public String toString(){     return "姓名:"+name+"学号:"+num+"性别:"+sex+"年龄:"+age+"成绩:"+grade;        }  } 

/*  * 文件名： Cotroller.java  * 描述：mvc中的c，用来管理模型层的数据  * @authur:Nazi  * function ：增、删、改、查、保存、更新  * */ import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.util.ArrayList; import java.util.Iterator;   /*  * Cotroller类集中对ArrayList<Student>进行操作  * @Author nazi  * @version 1.0  * */ public class Cotroller {      //student数据集合   private ArrayList<Student> list;      public Cotroller(ArrayList<Student> l){     this.list =l;   }      /*    * rturn a ArrayList<Student>    * */   public ArrayList<Student> getList()   {     return list;   }      /*    * 初始化Student数组    * */   public void setList(ArrayList<Student> list)   {     this.list = list;   }      /*    * add a student to the List    * */   public void add(Student s)   {     list.add(s);   }      /*    * remove the student from list    * */   public void remove(int id)   {     for(Iterator<Student> iter = list.iterator(); iter.hasNext();)     {       Student s = iter.next();              if(s.getNum() == id)       {         list.remove(s);       }     }   }    /*    * print the specific student    * */   public String printAll(int i) {      return list.get(i).toString();   }      /*    * 功能简述：将实现序列化后的对象写入到文件中。    * 文件输出地址："/home/nazi/2.txt" 文件地址可以更改    * */   public void fileOt() throws FileNotFoundException{     FileOutputStream fo = new FileOutputStream("/home/nazi/2.txt");     try {       ObjectOutputStream so = new ObjectOutputStream(fo);       so.writeObject(list);       so.close();     } catch (IOException e) {       e.printStackTrace();     }        }    /*    * function: 从指定路径读取文件，然后将对象状态进行赋值使用    *    * */   @SuppressWarnings("unchecked")   public void fileIn() throws FileNotFoundException{     FileInputStream fi = new FileInputStream("/home/nazi/2.txt");     try {       ObjectInputStream si = new ObjectInputStream(fi);       list = (ArrayList<Student>) si.readObject();       si.close();     } catch (IOException e) {       // TODO Auto-generated catch block       e.printStackTrace();     } catch (ClassNotFoundException e) {       // TODO Auto-generated catch block       e.printStackTrace();     }   }           } 

/*  * FileName:StuView.class  * 描述：以特定的方式展示数据  * @Atuthor:nazi  * @version:1.0  * */ import java.awt.Font; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.FileNotFoundException; import java.util.ArrayList; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JTextArea; import javax.swing.JTextField;   /*  * StuView 类用于展示数据  * @author：nazi  * @version:1.0  * */ public class StuView {    private static Cotroller cotroller;   public static void main(String args[]){     //创建管理者     cotroller = new Cotroller(new ArrayList<Student>());     //界面     initFrame();   }      /*    * InitFrame()中含有各种类型的控件，以及控件所对应的事件处理步骤    * */   protected static void initFrame(){       JFrame frame = new JFrame("学生信息管理系统");       frame.setSize(600,600);       frame.setLocation(500, 100);       frame.setLayout(null);       //生成组件       final JTextField name = new JTextField();       name.setBounds(79, 10, 103, 25);       final JTextField num = new JTextField();       num.setBounds(79, 53, 103, 25);       final JTextField sex = new JTextField();       sex.setBounds(79, 101, 103, 25);       final JTextField age = new JTextField();       age.setBounds(79, 161, 103, 25);       final JTextField g1 = new JTextField();       g1.setBounds(79, 216, 103, 25);        final JTextArea show = new JTextArea();       show.setBounds(194, 12, 388, 274);       frame.add(show);       show.setFont(new Font("Serif",Font.BOLD,18));                          frame.add(show);       frame.add(name);       frame.add(num);       frame.add(sex);       frame.add(age);       frame.add(g1);       frame.add(show);              JLabel label = new JLabel("学号：");       label.setBounds(12, 55, 63, 13);       frame.getContentPane().add(label);              JLabel label_1 = new JLabel("姓名：");       label_1.setBounds(12, 10, 63, 13);       frame.getContentPane().add(label_1);              JLabel label_2 = new JLabel("性别：");       label_2.setBounds(12, 110, 63, 13);       frame.getContentPane().add(label_2);              JLabel label_3 = new JLabel("年龄：");       label_3.setBounds(12, 167, 63, 13);       frame.getContentPane().add(label_3);              JLabel label_4 = new JLabel("成绩：");       label_4.setBounds(12, 226, 70, 13);       frame.getContentPane().add(label_4);                            //添加学生       JButton btnAdd =new JButton("添加");       btnAdd.setBounds(12, 362, 104, 23);       frame.add(btnAdd);       btnAdd.addActionListener(new ActionListener() {         public void actionPerformed(ActionEvent arg0) {           Student s1 = new Student(Integer.parseInt(num.getText()),name.getText(), sex.getText(),Integer.parseInt(age.getText()),Integer.parseInt(g1.getText()));           //放到集合           cotroller.getList().add(s1);           //打印           for(int i = 0;i<cotroller.getList().size();i++){             show.append("/n");             show.append(cotroller.printAll(i));           }                               }       });              //保存为文件       JButton btnSave =new JButton("保存");;       btnSave.setBounds(478, 362, 104, 23);       frame.add(btnSave);       btnSave.addActionListener(new ActionListener() {         public void actionPerformed(ActionEvent arg0) {           try {             cotroller.fileOt();           } catch (FileNotFoundException e) {             // TODO Auto-generated catch block             e.printStackTrace();           }         }       });              //刷新       JButton btnRefresh = new JButton("刷新");       btnRefresh.setBounds(327, 362, 104, 23);       frame.add(btnRefresh);       btnRefresh.addActionListener(new ActionListener() {                  @Override         public void actionPerformed(ActionEvent arg0) {           try {             cotroller.fileIn();           } catch (FileNotFoundException e) {             // TODO Auto-generated catch block             e.printStackTrace();           }           //打印           for(int i = 0;i<cotroller.getList().size();i++){             show.append("/n");             show.append(cotroller.printAll(i));           }                    }       });              //删除       JButton button_1 = new JButton("删除");       button_1.setBounds(169, 362, 104, 23);       button_1.addActionListener(new ActionListener() {                  @Override         public void actionPerformed(ActionEvent arg0) {           // TODO Auto-generated method stub                    }       });       frame.add(button_1);       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);       frame.setVisible(true);      }  }