一、前言

本學期學習了JAVA語言，在學期的結束，寫一個有操作界面，與數據庫關聯的管理系統，用來鞏固自己本學習所學的知識。

用到的知識：JAVA基礎，JAVA界面設計(GUI)，Oracle數據庫(需要掌握數據庫的基本操作語句)，鏈接數據庫。

使用的開發工具：MyEclipse Professional 2014

二、設計

我們管理的屬性有：項目編號，項目名稱，參與人員，負責人，項目開始時間，結束時間?？蒲许椖肯到y主要有四個功能，對科研項目的增加、刪除、修改、查詢。以及為增加系統安全性所設計的登陸模式。

2.1 增加：向數據庫的表中增加科研項目的所有信息

添加后在控制臺使用SQL語句查找，驗證是否已添加至數據庫中。

2.2 查詢：通過具有唯一性的項目編號查找該項目的所有信息

2.3 修改：根據項目編號選中要修改的項目，并重新輸入項目信息進行修改

2.4 刪除：通過具有唯一性的項目編號刪除對應項目的所有信息

三、窗體源碼

3.1 登錄界面

package 科研信息管理系統;

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class LoginWindows extends Frame implements WindowListener,ActionListener

{

public Label lgLabel; //用戶名標簽

public Label pwdLabel; //密碼標簽

public TextField lgText; //用戶名文本框

public TextField pwdText; //密碼文本框

public Button lgBt; //登錄按鈕

public Button quitBt; //退出按鈕

public LoginWindows()

{

super();

this.setSize(400, 300);

this.setTitle("科研信息管理系統");

this.setLayout(null);

lgLabel=new Label();

lgLabel.setText("登錄賬號:");

lgLabel.setSize(60, 30);

lgLabel.setLocation(70,70);

pwdLabel=new Label();

pwdLabel.setText("密 碼:");

pwdLabel.setSize(60,30);

pwdLabel.setLocation(70, 150);

lgText=new TextField();

lgText.setSize(180, 30);

lgText.setLocation(140, 70);

pwdText=new TextField();

pwdText.setSize(180,30);

pwdText.setLocation(140, 150);

lgBt=new Button();

lgBt.setLabel("登錄");

lgBt.setSize(60,30);

lgBt.setLocation(120, 220);

quitBt=new Button();

quitBt.setLabel("退出");

quitBt.setSize(60,30);

quitBt.setLocation(220,220);

quitBt.addActionListener(this);

lgBt.addActionListener(this);

this.addWindowListener(this);

this.add(lgLabel);

this.add(pwdLabel);

this.add(lgText);

this.add(pwdText);

this.add(lgBt);

this.add(quitBt);

this.setVisible(true);

}

public static void main(String args[])

{

LoginWindows main=new LoginWindows();

}

@Override

public void actionPerformed(ActionEvent e) {

Button bt=(Button) e.getSource();

if(bt.getLabel().equals("退出"))

{

System.exit(0);

}

else {

if ((lgText.getText().equals(""))||(pwdText.getText().equals("")))

{

JOptionPane.showMessageDialog(this,"賬號或密碼為空");

}

else

{

if ((lgText.getText().equals("admin"))&&(pwdText.getText().equals("111")))

//if((lgText.getText().equals(""))||(pwdText.getText().equals("")))

{

this.setVisible(false);

// Sqlwindow sql=new Sqlwindow();

WindowsView w=new WindowsView();

w.SciencePro();

}

else {

JOptionPane.showMessageDialog(this, "沒有權限");

}

}}}

@Override

public void windowOpened(WindowEvent e) {

// TODO Auto-generated method busb

}

@Override

public void windowClosing(WindowEvent e) {

// TODO Auto-generated method busb

System.exit(0);

}

@Override

public void windowClosed(WindowEvent e) {

// TODO Auto-generated method busb

}

@Override

public void windowIconified(WindowEvent e) {

// TODO Auto-generated method busb

}

@Override

public void windowDeiconified(WindowEvent e) {

// TODO Auto-generated method busb

}

@Override

public void windowActivated(WindowEvent e) {

// TODO Auto-generated method busb

}

@Override

public void windowDeactivated(WindowEvent e) {

// TODO Auto-generated method busb

}

}

3.2主窗體源碼

package 科研信息管理系統;

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import javax.swing.event.*;

import javax.swing.tree.*;

public class WindowsView implements TreeSelectionListener,ActionListener //窗口類

{

JFrame main;

JPanel leftPa;

JPanel upPa;

JPanel downPa;

///查詢用控件

JLabel numLa; //通過項目編號查詢

JTextField numTxt;

JButton numBt;

JTextField nameTxt; //顯示項目名稱的文本框

JTextField peopleTxt; //顯示參與人員

JTextField principalTxt; //顯示主要負責人

JTextField timeStartTxt; //顯示開始時間的文本框

JTextField timeEndTxt; //顯示預期結束時間的文本框

//增加用控件

JLabel anumLa;

JLabel anameLa;

JLabel apeopleLa;

JLabel aprincipalLa;

JLabel atimeStartLa;

JLabel atimeEndLa;

JTextField anumTxt;

JTextField anameTxt;

JTextField apeopleTxt;

JTextField aprincipalTxt;

JTextField atimeStartTxt;

JTextField atimeEndTxt;

JButton addBt;

JTable showTable;

//刪除用控件

JLabel dnumLa;

JButton dnumBt;

JTextField dnumTxt;

//修改用控件

JLabel alnumLa;

JTextField allnumTxt;

JButton alseBt;

JButton alBt;

JLabel allnumLa;

JLabel alnameLa;

JLabel alpeopleLa;

JLabel alprincipalLa;

JLabel altimeStartLa;

JLabel altimeEndLa;

JTextField alnumTxt;

JTextField alnameTxt;

JTextField alpeopleTxt;

JTextField alprincipalTxt;

JTextField altimeStartTxt;

JTextField altimeEndTxt;

public void SciencePro()

{

main=new JFrame();

main.setSize(800,800);

main.setTitle("科研信息管理");

main.setLayout(null);

leftPa=new JPanel();

leftPa.setSize(150, 600);

leftPa.setLocation(0, 0);

leftPa.setBackground(Color.white);

initLeftPanel();

main.add(leftPa);

upPa=new JPanel();

upPa.setSize(650, 400);

upPa.setLocation(150, 0);

upPa.setBackground(Color.gray);

main.add(upPa);

downPa=new JPanel();

downPa.setSize(650, 400);

downPa.setLocation(150, 400);

downPa.setBackground(Color.orange);

main.add(downPa);

main.setVisible(true);

}

private void initLeftPanel()

{

String[] strs={"查詢","增加","刪除","修改"};

JTree tree=new JTree(strs);

tree.addTreeSelectionListener(this);

leftPa.add(tree);

}

public void valueChanged(TreeSelectionEvent e)

{

JTree tree=(JTree)e.getSource();

DefaultMutableTreeNode selectionNode =(DefaultMutableTreeNode)tree.getLastSelectedPathComponent();

String str=selectionNode.toString();

if(str.equals("查詢"))

{

initUpDownPaWhenSearch();

}

if(str.equals("增加"))

{

initUpDownPaWhenAdd();

}

if(str.equals("刪除"))

{

initUpDownPaWhenDelete();

}

if(str.equals("修改"))

{

initUpDownPaWhenAlert();

}

}

private void initUpDownPaWhenSearch()

{

//清空上下面板上的控件

upPa.removeAll();

downPa.removeAll();

//動態的加載上面板的控件

upPa.setLayout(null);

numLa=new JLabel();

numLa.setText("請輸入項目編號");

numLa.setLocation(40, 60);

numLa.setSize(100, 40);

numTxt=new JTextField();

numTxt.setLocation(180, 60);

numTxt.setSize(200, 30);

numBt=new JButton();

numBt.setText("查詢");

numBt.addActionListener(this);

numBt.setLocation(250, 160);

numBt.setSize(60, 30);

upPa.add(numLa);

upPa.add(numTxt);

upPa.add(numBt);

upPa.validate();

upPa.repaint();

numBt.addActionListener(this);

//動態的加載下面板的控件

nameTxt=new JTextField();

nameTxt.setLocation(80, 50);

nameTxt.setSize(300, 30);

peopleTxt=new JTextField();

peopleTxt.setLocation(80, 100);

peopleTxt.setSize(300, 30);

principalTxt=new JTextField();

principalTxt.setLocation(80, 150);

principalTxt.setSize(300, 30);

timeStartTxt=new JTextField();

timeStartTxt.setLocation(80, 200);

timeStartTxt.setSize(300, 30);

timeEndTxt=new JTextField();

timeEndTxt.setLocation(80,250);

timeEndTxt.setSize(300, 30);

downPa.setLayout(null);

downPa.add(nameTxt);

downPa.add(peopleTxt);

downPa.add(principalTxt);

downPa.add(timeStartTxt);

downPa.add(timeEndTxt);

downPa.validate();

downPa.repaint();

}

public void actionPerformed(ActionEvent e)

{

JButton bt=(JButton)e.getSource();

//bt.addActionListener(this);

if(bt.getText().equals("查詢"))

{

if(numTxt.getText().equals(""))

{

JOptionPane.showMessageDialog(null, "請輸入項目編號");

}

else

{

DealSearch deal=new DealSearch();

String inf=deal.findProByNum(Integer.parseInt(numTxt.getText().trim()));

if((inf!=null)&&(!inf.equals("")))

{

String[] strs=inf.split(",");

nameTxt.setText(strs[1]);

peopleTxt.setText(strs[2]);

principalTxt.setText(strs[3]);

timeStartTxt.setText(strs[4]);

timeEndTxt.setText(strs[5]);

}

}

}

if(bt.getText().equals("新增"))

{

if (anumTxt.getText().equals("")||anameTxt.getText().equals("")||apeopleTxt.getText().equals("")||aprincipalTxt.getText().equals("")||atimeStartTxt.getText().equals("")||atimeEndTxt.getText().equals(""))

{

JOptionPane.showMessageDialog(null, "輸入中不能有空值！！");

}

else

{

ScienceProject s=new ScienceProject();

s.SetNum(Integer.parseInt(anumTxt.getText()));

s.SetName(anameTxt.getText());

s.SetPeople(apeopleTxt.getText());

s.SetLeader(aprincipalTxt.getText());

s.SetTimeStart(atimeStartTxt.getText());

s.SetTimeFinish(atimeEndTxt.getText());

DealAdd deal=new DealAdd();

deal.add(s);

}

}

if(bt.getText().equals("刪除"))

{

if(Integer.parseInt(dnumTxt.getText())==0)

{

JOptionPane.showMessageDialog(null, "不能刪除空的項目編號！！");

}

else

{

DealDelete deal=new DealDelete();

deal.delete(Integer.parseInt(dnumTxt.getText().trim()));

}

}

if(bt.getText().equals("提交"))

{

if(Integer.parseInt(allnumTxt.getText())==0)

{

JOptionPane.showMessageDialog(null, "不能修改空的項目編號！！");

}

else

{

DealSub deal=new DealSub();

deal.submit(Integer.parseInt(allnumTxt.getText()));

}

}

if(bt.getText().equals("修改"))

{

if (alnameTxt.getText().equals("")||alpeopleTxt.getText().equals("")||alprincipalTxt.getText().equals("")||altimeStartTxt.getText().equals("")||altimeEndTxt.getText().equals(""))

{

JOptionPane.showMessageDialog(null, "輸入中不能有空值！！");

}

else

{

ScienceProject s=new ScienceProject();

s.SetNum(Integer.parseInt(allnumTxt.getText()));

s.SetName(alnameTxt.getText());

s.SetPeople(alpeopleTxt.getText());

s.SetLeader(alprincipalTxt.getText());

s.SetTimeStart(altimeStartTxt.getText());

s.SetTimeFinish(altimeEndTxt.getText());

DealAlter deal=new DealAlter();

deal.alter(s);

}

}

}

private void initUpDownPaWhenAdd()

{

//清空上下面板上的控件

upPa.removeAll();

downPa.removeAll();

//動態的加載上面板的控件

upPa.setLayout(null);

anumLa=new JLabel();

anumLa.setText("請輸入要增加的項目編號");

anumLa.setLocation(30, 50);

anumLa.setSize(150, 40);

anumTxt=new JTextField();

anumTxt.setLocation(200, 50);

anumTxt.setSize(250, 30);

anameLa=new JLabel();

anameLa.setText("請輸入要增加的項目名稱");

anameLa.setLocation(30, 100);

anameLa.setSize(150, 40);

anameTxt=new JTextField();

anameTxt.setLocation(200, 100);

anameTxt.setSize(250, 30);

apeopleLa=new JLabel();

apeopleLa.setText("請輸入項目參與人員");

apeopleLa.setLocation(30, 150);

apeopleLa.setSize(150, 40);

apeopleTxt=new JTextField();

apeopleTxt.setLocation(200, 150);

apeopleTxt.setSize(250, 30);

aprincipalLa=new JLabel();

aprincipalLa.setText("請輸入項目負責人");

aprincipalLa.setLocation(30, 200);

aprincipalLa.setSize(150, 40);

aprincipalTxt=new JTextField();

aprincipalTxt.setLocation(200, 200);

aprincipalTxt.setSize(250, 30);

atimeStartLa=new JLabel();

atimeStartLa.setText("請輸入項目開始時間");

atimeStartLa.setLocation(30, 250);

atimeStartLa.setSize(150, 40);

atimeStartTxt=new JTextField();

atimeStartTxt.setLocation(200, 250);

atimeStartTxt.setSize(250, 30);

atimeEndLa=new JLabel();

atimeEndLa.setText("請輸入項目結束時間");

atimeEndLa.setLocation(30, 300);

atimeEndLa.setSize(150, 40);

atimeEndTxt=new JTextField();

atimeEndTxt.setLocation(200, 300);

atimeEndTxt.setSize(250, 30);

addBt=new JButton();

addBt.setText("新增");

addBt.addActionListener(this);

//addBt.addMouseListener(this);

addBt.setLocation(250, 340);

addBt.setSize(60, 30);

upPa.add(addBt);

upPa.add(anumLa);

upPa.add(anameLa);

upPa.add(apeopleLa);

upPa.add(aprincipalLa);

upPa.add(atimeStartLa);

upPa.add(atimeEndLa);

upPa.add(anameTxt);

upPa.add(anumTxt);

upPa.add(apeopleTxt);

upPa.add(aprincipalTxt);

upPa.add(atimeStartTxt);

upPa.add(atimeEndTxt);

upPa.validate();

upPa.repaint();

downPa.validate();

downPa.repaint();

}

private void initUpDownPaWhenDelete()

{

//清空上下面板上的控件

upPa.removeAll();

downPa.removeAll();

//動態的加載上面板的控件

upPa.setLayout(null);

numLa=new JLabel();

numLa.setText("請輸入要刪除的項目編號");

numLa.setLocation(40, 60);

numLa.setSize(150, 40);

dnumTxt=new JTextField();

dnumTxt.setLocation(200, 60);

dnumTxt.setSize(250, 30);

dnumBt=new JButton();

dnumBt.setText("刪除");

dnumBt.addActionListener(this);

dnumBt.setLocation(270, 170);

dnumBt.setSize(60, 30);

upPa.add(numLa);

upPa.add(dnumTxt);

upPa.add(dnumBt);

upPa.validate();

upPa.repaint();

downPa.validate();

downPa.repaint();

}

private void initUpDownPaWhenAlert()

{

//清空上下面板上的控件

upPa.removeAll();

downPa.removeAll();

//動態的加載上面板的控件

upPa.setLayout(null);

alnumLa=new JLabel();

alnumLa.setText("請輸入要修改的項目編號");

alnumLa.setLocation(40, 60);

alnumLa.setSize(150, 40);

alseBt=new JButton();

alseBt.setText("提交");

alseBt.addActionListener(this);

alseBt.setLocation(270, 170);

alseBt.setSize(60, 30);

allnumTxt=new JTextField();

allnumTxt.setLocation(200, 60);

allnumTxt.setSize(200, 30);

upPa.add(alnumLa);

upPa.add(alseBt);

upPa.add(allnumTxt);

upPa.validate();

upPa.repaint();

alBt=new JButton();

alBt.setText("修改");

alBt.addActionListener(this);

alBt.setLocation(450, 170);

alBt.setSize(60, 30);

/* allnumLa=new JLabel();

allnumLa.setText("請輸入修改后的項目編號");

allnumLa.setLocation(30, 00);

allnumLa.setSize(150, 40);

alnumTxt=new JTextField();

alnumTxt.setLocation(180, 00);

alnumTxt.setSize(250, 30);*/

alnameLa=new JLabel();

alnameLa.setText("請輸入修改后項目名稱");

alnameLa.setLocation(30, 50);

alnameLa.setSize(150, 40);

alnameTxt=new JTextField();

alnameTxt.setLocation(180, 50);

alnameTxt.setSize(250, 30);

alpeopleLa=new JLabel();

alpeopleLa.setText("請重設參與人員");

alpeopleLa.setLocation(30, 100);

alpeopleLa.setSize(150, 40);

alpeopleTxt=new JTextField();

alpeopleTxt.setLocation(180, 100);

alpeopleTxt.setSize(250, 30);

alprincipalLa=new JLabel();

alprincipalLa.setText("請重設項目負責人");

alprincipalLa.setLocation(30, 150);

alprincipalLa.setSize(150, 40);

alprincipalTxt=new JTextField();

alprincipalTxt.setLocation(180, 150);

alprincipalTxt.setSize(250, 30);

altimeStartLa=new JLabel();

altimeStartLa.setText("請重設項目開始時間");

altimeStartLa.setLocation(30, 200);

altimeStartLa.setSize(150, 40);

altimeStartTxt=new JTextField();

altimeStartTxt.setLocation(180, 200);

altimeStartTxt.setSize(250, 30);

altimeEndLa=new JLabel();

altimeEndLa.setText("請重設項目結束時間");

altimeEndLa.setLocation(30, 250);

altimeEndLa.setSize(150, 40);

altimeEndTxt=new JTextField();

altimeEndTxt.setLocation(180, 250);

altimeEndTxt.setSize(250, 30);

downPa.add(alBt);

//downPa.add(allnumLa);

downPa.add(alnameLa);

downPa.add(alpeopleLa);

downPa.add(alprincipalLa);

downPa.add(altimeStartLa);

downPa.add(altimeEndLa);

downPa.add(alnameTxt);

//downPa.add(alnumTxt);

downPa.add(alpeopleTxt);

downPa.add(alprincipalTxt);

downPa.add(altimeStartTxt);

downPa.add(altimeEndTxt);

downPa.setLayout(null);

downPa.validate();

downPa.repaint();

}

}

3.3 組織SQL語句，鏈接數據庫部分

package 科研信息管理系統;

import java.sql.*;

import java.util.Scanner;

public class Sql {

public void AddScienceProject(ScienceProject scienceProject)

{

try

{

Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();

String conStr="jdbc:oracle:thin:@localhost:1521:XE";

Connection con=DriverManager.getConnection(conStr,"system","1");

StringBuffer sql=new StringBuffer("insert into science values("+scienceProject.GetNum()+",'"+scienceProject.GetName()+"','"+scienceProject.GetPeople()+"','"+scienceProject.GetLeader()+"','"+scienceProject.GetTimeStart()+"','"+scienceProject.GetTimeFinish()+"')");

Statement st=con.createStatement();

st.execute(sql.toString());

st.close();

con.close();

}

catch (Exception e)

{

// TODO: handle exception

System.out.println(e.toString());

}

}

public void DelScienceProject(ScienceProject scienceProject)

{

try

{

Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();

String conStr="jdbc:oracle:thin:@localhost:1521:XE";

Connection con=DriverManager.getConnection(conStr,"system","1");

StringBuffer sql=new StringBuffer("delete from science where num="+scienceProject.GetNum()+"");

Statement st=con.createStatement();

st.execute(sql.toString());

st.close();

con.close();

}

catch (Exception e)

{

// TODO: handle exception

System.out.println(e.toString());

}

}

public void UpdScienceProject(ScienceProject scienceProject)

{

try

{

Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();

String conStr="jdbc:oracle:thin:@localhost:1521:XE";

Connection con=DriverManager.getConnection(conStr,"system","1");

StringBuffer sql =new StringBuffer("update science set name='"+scienceProject.GetName()+"',workpeople='"+scienceProject.GetPeople()+"',manager='"+scienceProject.GetLeader()+"',timestart='"+scienceProject.GetTimeStart()+"',timeend='"+scienceProject.GetTimeFinish()+"' where num="+scienceProject.GetNum()+"");

Statement st=con.createStatement();

st.execute(sql.toString());

st.close();

con.close();

}

catch (Exception e)

{

// TODO: handle exception

System.out.println("修改異常");

System.out.println(e.toString());

}

}

public ScienceProject Findbynum(int num)

{

ScienceProject scienceProject=new ScienceProject();

try

{

Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();

String conStr="jdbc:oracle:thin:@localhost:1521:XE";

Connection con=DriverManager.getConnection(conStr,"system","1");

StringBuffer sql=new StringBuffer("select * from science where num="+num+"");

Statement st=con.createStatement();

ResultSet rs=st.executeQuery(sql.toString());

while(rs.next())

{

scienceProject.SetNum(rs.getInt(1));

scienceProject.SetName(rs.getString(2));

scienceProject.SetPeople(rs.getString(3));

scienceProject.SetLeader(rs.getString(4));

scienceProject.SetTimeStart(rs.getString(5));

scienceProject.SetTimeFinish(rs.getString(6));

}

st.close();

con.close();

}

catch (Exception e) {

// TODO: handle exception

System.out.println(e.toString());

}

return scienceProject;

}

public ScienceProject Look()

{

ScienceProject scienceProject=new ScienceProject();

try

{

Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();

String conStr="jdbc:oracle:thin:@localhost:1521:XE";

Connection con=DriverManager.getConnection(conStr,"system","1");

StringBuffer sql=new StringBuffer("select *from science");

Statement st=con.createStatement();

ResultSet rs=st.executeQuery(sql.toString());

while(rs.next())

{

scienceProject.SetNum(rs.getInt(1));

scienceProject.SetName(rs.getString(2));

scienceProject.SetPeople(rs.getString(3));

scienceProject.SetLeader(rs.getString(4));

scienceProject.SetTimeStart(rs.getString(5));

scienceProject.SetTimeFinish(rs.getString(6));

}

st.close();

con.close();

}

catch (Exception ex)

{

// TODO: handle exception

System.out.println(ex.toString());

}

return scienceProject;

}

public static void main(String args[])

{

}

}

3.4 增刪查改對應處理的源碼

//處理增加

package 科研信息管理系統;

import javax.swing.JOptionPane;

public class DealAdd

{

public DealAdd()

{}

public void add(ScienceProject s)

{

Sql sql=new Sql();

if(sql.Findbynum(s.GetNum()).GetNum()!=0)

{

JOptionPane.showMessageDialog(null, "該項目已存在，請重新輸入！");

}

else

{

sql.AddScienceProject(s);

JOptionPane.showMessageDialog(null,"增加成功");

}

}

}

由設計部分可以看到，刪除時需要先提交項目編號，所以，需要處理提交事件

//處理提交

package 科研信息管理系統;

import javax.swing.JOptionPane;

public class DealSub

{

DealSub()

{}

public void submit(int num)

{

Sql sql =new Sql();

if(sql.Findbynum(num).GetNum()==0)

{

JOptionPane.showMessageDialog(null, "不存在該項目");

}

else

{

JOptionPane.showMessageDialog(null, "請在下方填寫修改后的項目信息");

}

}

}

//處理刪除

package 科研信息管理系統;

import javax.swing.JOptionPane;

public class DealDelete

{

public DealDelete()

{}

public void delete(int num)

{

ScienceProject s=new ScienceProject();

Sql sql=new Sql();

if(sql.Findbynum(num).GetNum()==0)

{

JOptionPane.showMessageDialog(null, "不存在該項目~");

}

else

{

s=sql.Findbynum(num);

sql.DelScienceProject(s);

JOptionPane.showMessageDialog(null, "刪除成功~");

}

}

}

//處理修改

package 科研信息管理系統;

import javax.swing.JOptionPane;

public class DealAlter

{

public DealAlter()

{}

public void alter(ScienceProject s)

{

Sql sql=new Sql();

sql.UpdScienceProject(s);

JOptionPane.showMessageDialog(null,"修改成功");

}

}

//處理查詢

package 科研信息管理系統;

public class DealSearch //處理查詢事件

{

public DealSearch()

{}

public String findProByNum(int num)//通過項目編號查詢

{

String result="";

ScienceProject s=new ScienceProject();

Sql sql=new Sql();

s=sql.Findbynum(num);

result=s.GetNum()+","+s.GetName()+","+s.GetPeople()+","+s.GetLeader()+","+s.GetTimeStart()+","+s.GetTimeFinish();

return result;

}

}

3.5 主函數調用登錄窗口

package 科研信息管理系統;

public class Test {

public static void main(String[] args)

{

LoginWindows v=new LoginWindows();

}

}

四、總結

還是有一些的缺陷存在的，由于對科研項目的不熟悉，有些屬性設計得不合理，還有很多沒有考慮到的地方，另外對GUI的不熟悉也限制了我們在窗口上的設計。還需要在項目屬性及窗口等方面進行修改。

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總結

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