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Java+MySQL实现学生信息管理系统源码

2017-11-14 14:32:33 作者：ZhuangM_

这篇文章主要为大家详细介绍了Java+MySQL实现学生信息管理系统，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

基于Java swing+MySQL实现学生信息管理系统：主要实现JDBC对学生信息进行增删改查，应付一般课设足矣，分享给大家。（由于篇幅原因，代码未全部列出，如有需要留下邮箱）

鉴于太多同学要源码，实在发不过来，上传到github上 https://github.com/ZhuangM/student.git

1、开发环境：jdk7+MySQL5+win7

代码结构：model-dao-view

2、数据库设计--建库建表语句：

CREATE DATABASE student; 


DROP TABLE IF EXISTS `admin`; 
CREATE TABLE `admin` ( 
 `id` int(11) NOT NULL AUTO_INCREMENT, 
 `name` varchar(20) NOT NULL, 
 `username` varchar(20) NOT NULL, 
 `password` varchar(20) NOT NULL, 
 PRIMARY KEY (`id`) 
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8; 
 
LOCK TABLES `admin` WRITE; 
INSERT INTO `admin` VALUES (1,'admin','admin','admin'); 
UNLOCK TABLES; 
 
DROP TABLE IF EXISTS `student`; 
CREATE TABLE `student` ( 
 `id` int(11) NOT NULL AUTO_INCREMENT, 
 `name` varchar(20) NOT NULL, 
 `sno` varchar(20) NOT NULL, 
 `department` varchar(20) NOT NULL, 
 `hometown` varchar(20) NOT NULL, 
 `mark` varchar(20) NOT NULL, 
 `email` varchar(20) NOT NULL, 
 `tel` varchar(20) NOT NULL, 
 `sex` varchar(20) NOT NULL, 
 PRIMARY KEY (`id`) 
) ENGINE=InnoDB AUTO_INCREMENT=22 DEFAULT CHARSET=utf8; 
 
LOCK TABLES `student` WRITE; 
INSERT INTO `student` VALUES (18,'张三','001','信息科学技术学院','辽宁','80','zhangsan@163.com','13888888888','男'),(19,'李四','002','理学院','上海','70','lisi@sina.com','13812341234','男'),(20,'王五','003','外国语学院','北京','88','wangwu@126.com','13698765432','女'); 
UNLOCK TABLES;

3、model--管理员、学生

/** 
 * 项目名：student 
 * 修改历史： 
 * 作者： MZ 
 * 创建时间： 2016年1月6日-上午9:42:48 
 */ 
package com.student.model; 
 
/** 
 * 模块说明：admin 
 * 
 */ 
public class Admin { 
 private int id; 
 private String name; 
 private String username; 
 private String password; 
 
 public String getName() { 
 return name; 
 } 
 
 public void setName(String name) { 
 this.name = name; 
 } 
 
 public int getId() { 
 return id; 
 } 
 
 public void setId(int id) { 
 this.id = id; 
 } 
 
 public String getUsername() { 
 return username; 
 } 
 
 public void setUsername(String username) { 
 this.username = username; 
 } 
 
 public String getPassword() { 
 return password; 
 } 
 
 public void setPassword(String password) { 
 this.password = password; 
 } 
 
}

/** 
 * 项目名：student 
 * 修改历史： 
 * 作者： MZ 
 * 创建时间： 2016年1月6日-上午9:42:36 
 */ 
package com.student.model; 
 
/** 
 * 模块说明： 学生 
 * 
 */ 
public class Student { 
 private int id; 
 private String sno;// 学号 
 private String name; 
 private String sex; 
 private String department;// 院系 
 private String homeTown;// 籍贯 
 private String mark;// 学分 
 private String email; 
 private String tel;// 联系方式 
 
 public int getId() { 
 return id; 
 } 
 
 public void setId(int id) { 
 this.id = id; 
 } 
 
 public String getSno() { 
 return sno; 
 } 
 
 public void setSno(String sno) { 
 this.sno = sno; 
 } 
 
 public String getName() { 
 return name; 
 } 
 
 public void setName(String name) { 
 this.name = name; 
 } 
 
 public String getSex() { 
 return sex; 
 } 
 
 public void setSex(String sex) { 
 this.sex = sex; 
 } 
 
 public String getDepartment() { 
 return department; 
 } 
 
 public void setDepartment(String department) { 
 this.department = department; 
 } 
 
 public String getHomeTown() { 
 return homeTown; 
 } 
 
 public void setHomeTown(String homeTown) { 
 this.homeTown = homeTown; 
 } 
 
 public String getMark() { 
 return mark; 
 } 
 
 public void setMark(String mark) { 
 this.mark = mark; 
 } 
 
 public String getEmail() { 
 return email; 
 } 
 
 public void setEmail(String email) { 
 this.email = email; 
 } 
 
 public String getTel() { 
 return tel; 
 } 
 
 public void setTel(String tel) { 
 this.tel = tel; 
 } 
 
}

4、工具类DBUtil（对jdbc进行封装）

/** 
 * 项目名：student 
 * 修改历史： 
 * 作者： MZ 
 * 创建时间： 2016年1月6日-上午9:43:21 
 */ 
package com.student.util; 
 
import java.sql.Connection; 
import java.sql.DriverManager; 
import java.sql.PreparedStatement; 
import java.sql.ResultSet; 
import java.sql.SQLException; 
 
import com.student.AppConstants; 
 
/** 
 * 模块说明：数据库工具类 
 * 
 */ 
public class DBUtil { 
 private static DBUtil db; 
 
 private Connection conn; 
 private PreparedStatement ps; 
 private ResultSet rs; 
 
 private DBUtil() { 
 
 } 
 
 public static DBUtil getDBUtil() { 
 if (db == null) { 
  db = new DBUtil(); 
 } 
 return db; 
 } 
 
 public int executeUpdate(String sql) { 
 int result = -1; 
 if (getConn() == null) { 
  return result; 
 } 
 try { 
  ps = conn.prepareStatement(sql); 
  result = ps.executeUpdate(); 
 } catch (SQLException e) { 
  e.printStackTrace(); 
 } 
 return result; 
 } 
 
 public int executeUpdate(String sql, Object[] obj) { 
 int result = -1; 
 if (getConn() == null) { 
  return result; 
 } 
 try { 
  ps = conn.prepareStatement(sql); 
  for (int i = 0; i < obj.length; i++) { 
  ps.setObject(i + 1, obj[i]); 
  } 
  result = ps.executeUpdate(); 
  close(); 
 } catch (SQLException e) { 
  e.printStackTrace(); 
 } 
 return result; 
 } 
 
 public ResultSet executeQuery(String sql) { 
 if (getConn() == null) { 
  return null; 
 } 
 try { 
  ps = conn.prepareStatement(sql); 
  rs = ps.executeQuery(); 
 } catch (SQLException e) { 
  e.printStackTrace(); 
 } 
 return rs; 
 } 
 
 public ResultSet executeQuery(String sql, Object[] obj) { 
 if (getConn() == null) { 
  return null; 
 } 
 try { 
  ps = conn.prepareStatement(sql); 
  for (int i = 0; i < obj.length; i++) { 
  ps.setObject(i + 1, obj[i]); 
  } 
  rs = ps.executeQuery(); 
 } catch (SQLException e) { 
  e.printStackTrace(); 
 } 
 
 return rs; 
 } 
 
 private Connection getConn() { 
 try { 
  if (conn == null || conn.isClosed()) { 
  Class.forName(AppConstants.JDBC_DRIVER); 
  conn = DriverManager.getConnection(AppConstants.JDBC_URL, AppConstants.JDBC_USERNAME, 
   AppConstants.JDBC_PASSWORD); 
  } 
 } catch (ClassNotFoundException e) { 
  System.out.println("jdbc driver is not found."); 
  e.printStackTrace(); 
 } catch (SQLException e) { 
  e.printStackTrace(); 
 } 
 return conn; 
 } 
 
 public void close() { 
 try { 
  if (rs != null) { 
  rs.close(); 
  } 
  if (ps != null) { 
  ps.close(); 
  } 
  if (conn != null) { 
  conn.close(); 
  } 
 } catch (SQLException e) { 
  e.printStackTrace(); 
 } 
 } 
}

5、 dao：主要调用DBUtil操作相应的model--增删改查

BaseDAO.java

/** 
 * 项目名：student 
 * 修改历史： 
 * 作者： MZ 
 * 创建时间： 2016年1月6日-上午10:04:37 
 */ 
package com.student.base; 
 
import java.sql.ResultSet; 
import java.sql.SQLException; 
 
import com.student.DAO; 
import com.student.dao.AdminDAO; 
import com.student.dao.StudentDAO; 
import com.student.util.DBUtil; 
 
/** 
 * 模块说明： DAO基类 
 * 
 */ 
public abstract class BaseDAO { 
 protected final DBUtil db = DBUtil.getDBUtil(); 
 protected ResultSet rs; 
 private static BaseDAO baseDAO; 
 
 public BaseDAO() { 
 init(); 
 } 
 
 private void init() { 
 // buildAbilityDAO(); 
 } 
 
 // protected abstract void buildAbilityDAO(); 
 
 public static synchronized BaseDAO getAbilityDAO(DAO dao) { 
 switch (dao) { 
 case AdminDAO: 
  if (baseDAO == null || baseDAO.getClass() != AdminDAO.class) { 
  baseDAO = AdminDAO.getInstance(); 
  } 
  break; 
 case StudentDAO: 
  if (baseDAO == null || baseDAO.getClass() != StudentDAO.class) { 
  baseDAO = StudentDAO.getInstance(); 
  } 
  break; 
 default: 
  break; 
 } 
 return baseDAO; 
 } 
 
 protected void destroy() { 
 try { 
  if (rs != null) { 
  rs.close(); 
  } 
 } catch (SQLException se) { 
  se.printStackTrace(); 
 } finally { 
  db.close(); 
 } 
 } 
}

AdminDAO.java

/** 
 * 项目名：student 
 * 修改历史： 
 * 作者： MZ 
 * 创建时间： 2016年1月6日-上午9:59:58 
 */ 
package com.student.dao; 
 
import java.sql.SQLException; 
 
import com.student.base.BaseDAO; 
 
/** 
 * 模块说明： 管理员增删改查 
 * 
 */ 
public class AdminDAO extends BaseDAO { 
 
 private static AdminDAO ad = null; 
 
 public static synchronized AdminDAO getInstance() { 
 if (ad == null) { 
  ad = new AdminDAO(); 
 } 
 return ad; 
 } 
 
 public boolean queryForLogin(String username, String password) { 
 boolean result = false; 
 if (username.length() == 0 || password.length() == 0) { 
  return result; 
 } 
 String sql = "select * from admin where username=? and password=?"; 
 String[] param = { username, password }; 
 rs = db.executeQuery(sql, param); 
 try { 
  if (rs.next()) { 
  result = true; 
  } 
 } catch (SQLException e) { 
  e.printStackTrace(); 
 } finally { 
  destroy(); 
 } 
 return result; 
 } 
 
}

StudentDAO.java

/** 
 * 项目名：student 
 * 修改历史： 
 * 作者： MZ 
 * 创建时间： 2016年1月6日-上午10:00:07 
 */ 
package com.student.dao; 
 
import java.sql.ResultSet; 
import java.sql.SQLException; 
import java.util.ArrayList; 
import java.util.List; 
 
import com.student.base.BaseDAO; 
import com.student.model.Student; 
 
/** 
 * 模块说明： 学生增删改查 
 * 
 */ 
public class StudentDAO extends BaseDAO { 
 private final int fieldNum = 9; 
 private final int showNum = 15; 
 private static StudentDAO sd = null; 
 
 public static synchronized StudentDAO getInstance() { 
 if (sd == null) { 
  sd = new StudentDAO(); 
 } 
 return sd; 
 } 
 
 // update 
 public boolean update(Student stu) { 
 boolean result = false; 
 if (stu == null) { 
  return result; 
 } 
 try { 
  // check 
  if (queryBySno(stu.getSno()) == 0) { 
  return result; 
  } 
  // update 
  String sql = "update student set sex=?,department=?,email=?,tel=?,hometown=?,mark=? where name=? and sno=?"; 
  String[] param = { stu.getSex(), stu.getDepartment(), stu.getEmail(), stu.getTel(), stu.getHomeTown(), 
   stu.getMark(), stu.getName(), stu.getSno() }; 
  int rowCount = db.executeUpdate(sql, param); 
  if (rowCount == 1) { 
  result = true; 
  } 
 } catch (SQLException se) { 
  se.printStackTrace(); 
 } finally { 
  destroy(); 
 } 
 return result; 
 } 
 
 // delete 
 public boolean delete(Student stu) { 
 boolean result = false; 
 if (stu == null) { 
  return result; 
 } 
 String sql = "delete from student where name=? and sno=?"; 
 String[] param = { stu.getName(), stu.getSno() }; 
 int rowCount = db.executeUpdate(sql, param); 
 if (rowCount == 1) { 
  result = true; 
 } 
 destroy(); 
 return result; 
 } 
 
 // add 
 public boolean add(Student stu) { 
 boolean result = false; 
 if (stu == null) { 
  return result; 
 } 
 try { 
  // check 
  if (queryBySno(stu.getSno()) == 1) { 
  return result; 
  } 
  // insert 
  String sql = "insert into student(name,sno,sex,department,hometown,mark,email,tel) values(?,?,?,?,?,?,?,?)"; 
  String[] param = { stu.getName(), stu.getSno(), stu.getSex(), stu.getDepartment(), stu.getHomeTown(), 
   stu.getMark(), stu.getEmail(), stu.getTel() }; 
  if (db.executeUpdate(sql, param) == 1) { 
  result = true; 
  } 
 } catch (SQLException se) { 
  se.printStackTrace(); 
 } finally { 
  destroy(); 
 } 
 return result; 
 } 
 
 // query by name 
 public String[][] queryByName(String name) { 
 String[][] result = null; 
 if (name.length() < 0) { 
  return result; 
 } 
 List<Student> stus = new ArrayList<Student>(); 
 int i = 0; 
 String sql = "select * from student where name like ?"; 
 String[] param = { "%" + name + "%" }; 
 rs = db.executeQuery(sql, param); 
 try { 
  while (rs.next()) { 
  buildList(rs, stus, i); 
  i++; 
  } 
  if (stus.size() > 0) { 
  result = new String[stus.size()][fieldNum]; 
  for (int j = 0; j < stus.size(); j++) { 
   buildResult(result, stus, j); 
  } 
  } 
 } catch (SQLException se) { 
  se.printStackTrace(); 
 } finally { 
  destroy(); 
 } 
 
 return result; 
 } 
 
 // query 
 public String[][] list(int pageNum) { 
 String[][] result = null; 
 if (pageNum < 1) { 
  return result; 
 } 
 List<Student> stus = new ArrayList<Student>(); 
 int i = 0; 
 int beginNum = (pageNum - 1) * showNum; 
 String sql = "select * from student limit ?,?"; 
 Integer[] param = { beginNum, showNum }; 
 rs = db.executeQuery(sql, param); 
 try { 
  while (rs.next()) { 
  buildList(rs, stus, i); 
  i++; 
  } 
  if (stus.size() > 0) { 
  result = new String[stus.size()][fieldNum]; 
  for (int j = 0; j < stus.size(); j++) { 
   buildResult(result, stus, j); 
  } 
  } 
 } catch (SQLException se) { 
  se.printStackTrace(); 
 } finally { 
  destroy(); 
 } 
 
 return result; 
 } 
 
 // 将rs记录添加到list中 
 private void buildList(ResultSet rs, List<Student> list, int i) throws SQLException { 
 Student stu = new Student(); 
 stu.setId(i + 1); 
 stu.setName(rs.getString("name")); 
 stu.setDepartment(rs.getString("department")); 
 stu.setEmail(rs.getString("email")); 
 stu.setHomeTown(rs.getString("hometown")); 
 stu.setMark(rs.getString("mark")); 
 stu.setSex(rs.getString("sex")); 
 stu.setSno(rs.getString("sno")); 
 stu.setTel(rs.getString("tel")); 
 list.add(stu); 
 } 
 
 // 将list中记录添加到二维数组中 
 private void buildResult(String[][] result, List<Student> stus, int j) { 
 Student stu = stus.get(j); 
 result[j][0] = String.valueOf(stu.getId()); 
 result[j][1] = stu.getName(); 
 result[j][2] = stu.getSno(); 
 result[j][3] = stu.getSex(); 
 result[j][4] = stu.getDepartment(); 
 result[j][5] = stu.getHomeTown(); 
 result[j][6] = stu.getMark(); 
 result[j][7] = stu.getEmail(); 
 result[j][8] = stu.getTel(); 
 } 
 
 // query by sno 
 private int queryBySno(String sno) throws SQLException { 
 int result = 0; 
 if ("".equals(sno) || sno == null) { 
  return result; 
 } 
 String checkSql = "select * from student where sno=?"; 
 String[] checkParam = { sno }; 
 rs = db.executeQuery(checkSql, checkParam); 
 if (rs.next()) { 
  result = 1; 
 } 
 return result; 
 } 
 
}

6、 view：与用户交互的界面（包括LoginView.java、MainView.java、AddView.java、DeleteView.java、UpdateView.java），主要使用DAO提供的接口，由于篇幅原因，仅列出MainView即首页。

/** 
 * 项目名：student 
 * 修改历史： 
 * 作者： MZ 
 * 创建时间： 2016年1月6日-下午1:37:39 
 */ 
package com.student.view; 
 
import java.awt.BorderLayout; 
import java.awt.GridLayout; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.awt.event.KeyAdapter; 
import java.awt.event.KeyEvent; 
 
import javax.swing.JButton; 
import javax.swing.JFrame; 
import javax.swing.JLabel; 
import javax.swing.JPanel; 
import javax.swing.JScrollPane; 
import javax.swing.JTable; 
import javax.swing.JTextField; 
import javax.swing.table.DefaultTableCellRenderer; 
import javax.swing.table.DefaultTableModel; 
import javax.swing.table.TableColumn; 
 
import com.student.AppConstants; 
import com.student.DAO; 
import com.student.base.BaseDAO; 
import com.student.dao.StudentDAO; 
 
/** 
 * 模块说明： 首页 
 * 
 */ 
public class MainView extends JFrame { 
 
 private static final long serialVersionUID = 5870864087464173884L; 
 
 private final int maxPageNum = 99; 
 
 private JPanel jPanelNorth, jPanelSouth, jPanelCenter; 
 private JButton jButtonFirst, jButtonLast, jButtonNext, jButtonPre, jButtonAdd, jButtonDelete, jButtonUpdate, 
 jButtonFind; 
 private JLabel currPageNumJLabel; 
 private JTextField condition; 
 public static JTable jTable; 
 private JScrollPane jScrollPane; 
 private DefaultTableModel myTableModel; 
 
 public static String[] column = { "id", AppConstants.STUDENT_NAME, AppConstants.STUDENT_SNO, 
 AppConstants.STUDENT_SEX, AppConstants.STUDENT_DEPARTMETN, AppConstants.STUDENT_HOMETOWN, 
 AppConstants.STUDENT_MARK, AppConstants.STUDENT_EMAIL, AppConstants.STUDENT_TEL }; 
 public static int currPageNum = 1; 
 
 public MainView() { 
 init(); 
 } 
 
 private void init() { 
 setTitle(AppConstants.MAINVIEW_TITLE); 
 
 // north panel 
 jPanelNorth = new JPanel(); 
 jPanelNorth.setLayout(new GridLayout(1, 5)); 
 condition = new JTextField(AppConstants.PARAM_FIND_CONDITION); 
 condition.addKeyListener(new FindListener()); 
 jPanelNorth.add(condition); 
 // query by name 
 jButtonFind = new JButton(AppConstants.PARAM_FIND); 
 jButtonFind.addActionListener(new ActionListener() { 
 @Override 
 public void actionPerformed(ActionEvent e) { 
 find(); 
 } 
 }); 
 jButtonFind.addKeyListener(new FindListener()); 
 // add 
 jPanelNorth.add(jButtonFind); 
 jButtonAdd = new JButton(AppConstants.PARAM_ADD); 
 jButtonAdd.addActionListener(new ActionListener() { 
 @Override 
 public void actionPerformed(ActionEvent e) { 
 new AddView(); 
 } 
 }); 
 jPanelNorth.add(jButtonAdd); 
 // delete 
 jButtonDelete = new JButton(AppConstants.PARAM_DELETE); 
 jButtonDelete.addActionListener(new ActionListener() { 
 @Override 
 public void actionPerformed(ActionEvent e) { 
 new DeleteView(); 
 } 
 }); 
 jPanelNorth.add(jButtonDelete); 
 // update 
 jButtonUpdate = new JButton(AppConstants.PARAM_UPDATE); 
 jButtonUpdate.addActionListener(new ActionListener() { 
 @Override 
 public void actionPerformed(ActionEvent e) { 
 new UpdateView(); 
 } 
 }); 
 jPanelNorth.add(jButtonUpdate); 
 
 // center panel 
 jPanelCenter = new JPanel(); 
 jPanelCenter.setLayout(new GridLayout(1, 1)); 
 
 // init jTable 
 String[][] result = ((StudentDAO) BaseDAO.getAbilityDAO(DAO.StudentDAO)).list(currPageNum); 
 myTableModel = new DefaultTableModel(result, column); 
 jTable = new JTable(myTableModel); 
 DefaultTableCellRenderer cr = new DefaultTableCellRenderer(); 
 cr.setHorizontalAlignment(JLabel.CENTER); 
 jTable.setDefaultRenderer(Object.class, cr); 
 initJTable(jTable, result); 
 
 jScrollPane = new JScrollPane(jTable); 
 jPanelCenter.add(jScrollPane); 
 
 // south panel 
 jPanelSouth = new JPanel(); 
 jPanelSouth.setLayout(new GridLayout(1, 5)); 
 
 jButtonFirst = new JButton(AppConstants.MAINVIEW_FIRST); 
 jButtonFirst.addActionListener(new ActionListener() { 
 @Override 
 public void actionPerformed(ActionEvent e) { 
 currPageNum = 1; 
 String[][] result = ((StudentDAO) BaseDAO.getAbilityDAO(DAO.StudentDAO)).list(currPageNum); 
 initJTable(jTable, result); 
 currPageNumJLabel.setText(AppConstants.MAINVIEW_PAGENUM_JLABEL_DI + currPageNum 
  + AppConstants.MAINVIEW_PAGENUM_JLABEL_YE); 
 } 
 }); 
 jButtonPre = new JButton(AppConstants.MAINVIEW_PRE); 
 jButtonPre.addActionListener(new ActionListener() { 
 
 @Override 
 public void actionPerformed(ActionEvent e) { 
 currPageNum--; 
 if (currPageNum <= 0) { 
  currPageNum = 1; 
 } 
 String[][] result = ((StudentDAO) BaseDAO.getAbilityDAO(DAO.StudentDAO)).list(currPageNum); 
 initJTable(jTable, result); 
 currPageNumJLabel.setText(AppConstants.MAINVIEW_PAGENUM_JLABEL_DI + currPageNum 
  + AppConstants.MAINVIEW_PAGENUM_JLABEL_YE); 
 } 
 }); 
 jButtonNext = new JButton(AppConstants.MAINVIEW_NEXT); 
 jButtonNext.addActionListener(new ActionListener() { 
 @Override 
 public void actionPerformed(ActionEvent e) { 
 currPageNum++; 
 if (currPageNum > maxPageNum) { 
  currPageNum = maxPageNum; 
 } 
 String[][] result = ((StudentDAO) BaseDAO.getAbilityDAO(DAO.StudentDAO)).list(currPageNum); 
 initJTable(jTable, result); 
 currPageNumJLabel.setText(AppConstants.MAINVIEW_PAGENUM_JLABEL_DI + currPageNum 
  + AppConstants.MAINVIEW_PAGENUM_JLABEL_YE); 
 } 
 }); 
 jButtonLast = new JButton(AppConstants.MAINVIEW_LAST); 
 jButtonLast.addActionListener(new ActionListener() { 
 @Override 
 public void actionPerformed(ActionEvent e) { 
 currPageNum = maxPageNum; 
 String[][] result = ((StudentDAO) BaseDAO.getAbilityDAO(DAO.StudentDAO)).list(currPageNum); 
 initJTable(jTable, result); 
 currPageNumJLabel.setText(AppConstants.MAINVIEW_PAGENUM_JLABEL_DI + currPageNum 
  + AppConstants.MAINVIEW_PAGENUM_JLABEL_YE); 
 } 
 }); 
 
 currPageNumJLabel = new JLabel( 
 AppConstants.MAINVIEW_PAGENUM_JLABEL_DI + currPageNum + AppConstants.MAINVIEW_PAGENUM_JLABEL_YE); 
 currPageNumJLabel.setHorizontalAlignment(JLabel.CENTER); 
 
 jPanelSouth.add(jButtonFirst); 
 jPanelSouth.add(jButtonPre); 
 jPanelSouth.add(currPageNumJLabel); 
 jPanelSouth.add(jButtonNext); 
 jPanelSouth.add(jButtonLast); 
 
 this.add(jPanelNorth, BorderLayout.NORTH); 
 this.add(jPanelCenter, BorderLayout.CENTER); 
 this.add(jPanelSouth, BorderLayout.SOUTH); 
 
 setBounds(400, 200, 750, 340); 
 setResizable(false); 
 setDefaultCloseOperation(DISPOSE_ON_CLOSE); 
 setVisible(true); 
 } 
 
 public static void initJTable(JTable jTable, String[][] result) { 
 ((DefaultTableModel) jTable.getModel()).setDataVector(result, column); 
 jTable.setRowHeight(20); 
 TableColumn firsetColumn = jTable.getColumnModel().getColumn(0); 
 firsetColumn.setPreferredWidth(30); 
 firsetColumn.setMaxWidth(30); 
 firsetColumn.setMinWidth(30); 
 TableColumn secondColumn = jTable.getColumnModel().getColumn(1); 
 secondColumn.setPreferredWidth(60); 
 secondColumn.setMaxWidth(60); 
 secondColumn.setMinWidth(60); 
 TableColumn thirdColumn = jTable.getColumnModel().getColumn(2); 
 thirdColumn.setPreferredWidth(90); 
 thirdColumn.setMaxWidth(90); 
 thirdColumn.setMinWidth(90); 
 TableColumn fourthColumn = jTable.getColumnModel().getColumn(3); 
 fourthColumn.setPreferredWidth(30); 
 fourthColumn.setMaxWidth(30); 
 fourthColumn.setMinWidth(30); 
 TableColumn seventhColumn = jTable.getColumnModel().getColumn(6); 
 seventhColumn.setPreferredWidth(30); 
 seventhColumn.setMaxWidth(30); 
 seventhColumn.setMinWidth(30); 
 TableColumn ninthColumn = jTable.getColumnModel().getColumn(8); 
 ninthColumn.setPreferredWidth(90); 
 ninthColumn.setMaxWidth(90); 
 ninthColumn.setMinWidth(90); 
 } 
 
 private class FindListener extends KeyAdapter { 
 
 @Override 
 public void keyPressed(KeyEvent e) { 
 if (e.getKeyCode() == KeyEvent.VK_ENTER) { 
 find(); 
 } 
 } 
 } 
 
 private void find() { 
 currPageNum = 0; 
 String param = condition.getText(); 
 if ("".equals(param) || param == null) { 
 initJTable(MainView.jTable, null); 
 currPageNumJLabel.setText(AppConstants.MAINVIEW_FIND_JLABEL); 
 return; 
 } 
 String[][] result = ((StudentDAO) BaseDAO.getAbilityDAO(DAO.StudentDAO)).queryByName(param); 
 condition.setText(""); 
 initJTable(MainView.jTable, result); 
 currPageNumJLabel.setText(AppConstants.MAINVIEW_FIND_JLABEL); 
 } 
 
}

end.

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