求图书管理系统（java）代码？

java　swing　登陆界面code

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/*

* Login.java

*

* Created on __DATE__, __TIME__

*/

package com.agen.library.window;

import java.awt.Image;

import java.awt.Toolkit;

import javax.swing.JOptionPane;

import javax.swing.UIManager;

import javax.swing.UnsupportedLookAndFeelException;

import com.agen.library.factory.DAOFactory;

import com.agen.library.util.GlobalUser;

import com.agen.library.vo.User;

/**

*

* @author __USER__

*/

public class Login extends javax.swing.JFrame {

/**

*

*/

private static final long serialVersionUID = -2176093732040600809L;

/** Creates new form Login */

public Login() {

super("易云图书管理软件V1.0");

Image ime = Toolkit.getDefaultToolkit().getImage(

getClass().getResource("/images/ico.png"));

try {

UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

} catch (ClassNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (InstantiationException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IllegalAccessException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (UnsupportedLookAndFeelException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

setIconImage(ime);

initComponents();

setLocationRelativeTo(null);

this.setResizable(false);

}

/**

* This method is called from within the constructor to initialize the form.

* WARNING: Do NOT modify this code. The content of this method is always

* regenerated by the Form Editor.

*/

// GEN-BEGIN:initComponents

// editor-fold defaultstate="collapsed" desc="Generated Code"

private void initComponents() {

jLabel2 = new javax.swing.JLabel();

jLabel3 = new javax.swing.JLabel();

jTextField1 = new javax.swing.JTextField();

jPasswordField1 = new javax.swing.JPasswordField();

jButton1 = new javax.swing.JButton();

jButton2 = new javax.swing.JButton();

jLabel1 = new javax.swing.JLabel();

jMenuBar1 = new javax.swing.JMenuBar();

jMenu1 = new javax.swing.JMenu();

jMenuItem1 = new javax.swing.JMenuItem();

jMenu2 = new javax.swing.JMenu();

jMenuItem2 = new javax.swing.JMenuItem();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

addKeyListener(new java.awt.event.KeyAdapter() {

public void keyPressed(java.awt.event.KeyEvent evt) {

formKeyPressed(evt);

}

public void keyTyped(java.awt.event.KeyEvent evt) {

formKeyTyped(evt);

}

});

jLabel2.setFont(new java.awt.Font("微软雅黑", 0, 14));

jLabel2.setText("\u7528\u6237\u540d\uff1a");

jLabel3.setFont(new java.awt.Font("微软雅黑", 0, 14));

jLabel3.setText("\u5bc6 \u7801\uff1a");

jTextField1.setFont(new java.awt.Font("微软雅黑", 0, 14));

jTextField1.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jTextField1ActionPerformed(evt);

}

});

jPasswordField1.setFont(new java.awt.Font("微软雅黑", 0, 12));

jPasswordField1.addKeyListener(new java.awt.event.KeyAdapter() {

public void keyTyped(java.awt.event.KeyEvent evt) {

jPasswordField1KeyTyped(evt);

}

});

jButton1.setBackground(new java.awt.Color(223, 216, 216));

jButton1.setFont(new java.awt.Font("微软雅黑", 0, 14));

jButton1.setText("\u767b\u9646");

jButton1.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton1ActionPerformed(evt);

}

});

jButton2.setBackground(new java.awt.Color(223, 216, 216));

jButton2.setFont(new java.awt.Font("微软雅黑", 0, 14));

jButton2.setText("\u53d6\u6d88");

jButton2.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jButton2ActionPerformed(evt);

}

});

jLabel1.setIcon(new javax.swing.ImageIcon(

getClass().getResource("/images/login_main.jpg"))); // NOI18N

jMenu1.setText("File");

jMenu1.setFont(new java.awt.Font("微软雅黑", 0, 14));

jMenuItem1.setAccelerator(javax.swing.KeyStroke.getKeyStroke(

java.awt.event.KeyEvent.VK_Q,

java.awt.event.InputEvent.CTRL_MASK));

jMenuItem1.setText("Exit");

jMenuItem1.addMouseListener(new java.awt.event.MouseAdapter() {

public void mouseClicked(java.awt.event.MouseEvent evt) {

jMenuItem1MouseClicked(evt);

}

});

jMenuItem1.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jMenuItem1ActionPerformed(evt);

}

});

jMenu1.add(jMenuItem1);

jMenuBar1.add(jMenu1);

jMenu2.setText("Help");

jMenu2.setFont(new java.awt.Font("微软雅黑", 0, 14));

jMenuItem2.setText("About");

jMenuItem2.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent evt) {

jMenuItem2ActionPerformed(evt);

}

});

jMenu2.add(jMenuItem2);

jMenuBar1.add(jMenu2);

setJMenuBar(jMenuBar1);

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(

getContentPane());

getContentPane().setLayout(layout);

layout.setHorizontalGroup(layout

.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

.addComponent(jLabel1)

.addGroup(

layout.createSequentialGroup()

.addContainerGap()

.addGroup(

layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.TRAILING,

false)

.addComponent(

jLabel2,

javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(

javax.swing.GroupLayout.Alignment.LEADING,

layout.createSequentialGroup()

.addComponent(

jLabel3)

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addGroup(

layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(

layout.createSequentialGroup()

.addGap(10,

10,

10)

.addComponent(

jButton1)

.addGap(47,

47,

47)

.addComponent(

jButton2))

.addComponent(

jPasswordField1)

.addComponent(

jTextField1,

javax.swing.GroupLayout.DEFAULT_SIZE,

197,

Short.MAX_VALUE))

.addContainerGap()))));

layout.setVerticalGroup(layout

.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(

layout.createSequentialGroup()

.addComponent(jLabel1)

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addGroup(

layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.BASELINE)

.addComponent(jLabel2)

.addComponent(

jTextField1,

javax.swing.GroupLayout.PREFERRED_SIZE,

24,

javax.swing.GroupLayout.PREFERRED_SIZE))

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addGroup(

layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.BASELINE)

.addComponent(jLabel3)

.addComponent(

jPasswordField1,

javax.swing.GroupLayout.PREFERRED_SIZE,

23,

javax.swing.GroupLayout.PREFERRED_SIZE))

.addPreferredGap(

javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addGroup(

layout.createParallelGroup(

javax.swing.GroupLayout.Alignment.BASELINE)

.addComponent(jButton1)

.addComponent(jButton2))

.addContainerGap(

javax.swing.GroupLayout.DEFAULT_SIZE,

Short.MAX_VALUE)));

pack();

}// /editor-fold

// GEN-END:initComponents

private void jMenuItem2ActionPerformed(java.awt.event.ActionEvent evt) {

// TODO add your handling code here:

About.start();

}

private void jPasswordField1KeyTyped(java.awt.event.KeyEvent evt) {

if (evt.getKeyChar() == '\n') {

String name = jTextField1.getText(); // 获取用户名

String pass = String.valueOf(jPasswordField1.getPassword());// 获取密码

User user = null;

// 未输入用户名

if (name.equals("") || name == null) {

JOptionPane.showMessageDialog(this, "用户名不允许为空！", "cuowu", 0);

return;

}

try {

user = DAOFactory.getIUserDAOInstance().findById(name);

if (user != null) {

if (user.getPass() != null user.getPass().equals(pass)) {

GlobalUser.LOGIN_USER = user; // 记录当前用户

// 进入主界面

Main.start();

this.dispose();

} else {

JOptionPane.showMessageDialog(this, "用户名或密码错误!");

return;

}

}

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

if (user == null) {

JOptionPane.showMessageDialog(this, "用户名或密码错误!", "消息", 0);

return;

}

}

}

private void formKeyTyped(java.awt.event.KeyEvent evt) {

}

private void formKeyPressed(java.awt.event.KeyEvent evt) {

}

private void jTextField1ActionPerformed(java.awt.event.ActionEvent evt) {

// TODO add your handling code here:

}

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {

// TODO add your handling code here:

jTextField1.setText("");

jPasswordField1.setText("");

jTextField1.requestFocus();

}

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {

String name = jTextField1.getText(); // 获取用户名

String pass = String.valueOf(jPasswordField1.getPassword());// 获取密码

User user = null;

// 未输入用户名

if (name.equals("")) {

JOptionPane.showMessageDialog(this, "用户名不允许为空！");

return;

}

try {

user = DAOFactory.getIUserDAOInstance().findById(name);

if (user != null) {

if (user.getPass() != null user.getPass().equals(pass)) {

GlobalUser.LOGIN_USER = user; // 记录当前用户

// 进入主界面

Main.start();

this.dispose();

} else {

JOptionPane.showMessageDialog(this, "用户名或密码错误!", "消息", 0);

return;

}

}

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

if (user == null) {

JOptionPane.showMessageDialog(this, "用户名或密码错误!", "消息", 0);

return;

}

}

private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {

if (JOptionPane.showConfirmDialog(this, "你确定要退出吗？", "提示",

JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION) {

System.exit(0);

}

}

private void jMenuItem1MouseClicked(java.awt.event.MouseEvent evt) {

System.exit(1);

}

/**

* @param args

* the command line arguments

*/

public static void main(String args[]) {

// System.out.println(Login.class.getResource("src/images/images/login_main.jpg"));

// new javax.swing.ImageIcon(

// Login.class.getResource("../../../../images/login_main.jpg"));

// new Login().setVisible(true);

java.awt.EventQueue.invokeLater(new Runnable() {

public void run() {

new Login().setVisible(true);

}

});

}

// GEN-BEGIN:variables

// Variables declaration - do not modify

private javax.swing.JButton jButton1;

private javax.swing.JButton jButton2;

private javax.swing.JLabel jLabel1;

private javax.swing.JLabel jLabel2;

private javax.swing.JLabel jLabel3;

private javax.swing.JMenu jMenu1;

private javax.swing.JMenu jMenu2;

private javax.swing.JMenuBar jMenuBar1;

private javax.swing.JMenuItem jMenuItem1;

private javax.swing.JMenuItem jMenuItem2;

private javax.swing.JPasswordField jPasswordField1;

private javax.swing.JTextField jTextField1;

// End of variables declaration//GEN-END:variables

}

查询图书信息：按名字查询图书 （Java图书管理系统） 按上架日期查询 按种类查询

将图书信息封装成一个类,根据图书对象中保存的信息进行组装sql语句

如:语句初始化为select * from 图书 where 1=1

组装语句

用一个集合(如:columns)保存要用到的字段名

if(null!=书名){

sql语句append( and 书名=? );

集合.add("书名");

}

if(id0){

append( and id=? );

add("id");

}

if(null!=上架日期){

append( and 上架日期=?);

add("上架日期");

}

遍历集合(columns)

for(int i=0;icolumns.size();i++){

setXX(i+1,对象.getXX());

}

//再执行就o了

求一段图书查找代码，用JSP写的，具体功能要求是输入书名点击查询可以调转到所查询图书的页面

%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %

!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ""

html xmlns=""

head

meta http-equiv="Content-Type" content="text/html; charset=gb2312" /

title无标题文档/title

head

body bgcolor="cyan"

center

h1 align="center" class="STYLE1"请输入要查询的关键字/h1

form action="jie.jsp" method="post"

span class="STYLE2"请选择查询条件/span

select name="condition"

option values ="author"作者/option

option values ="name" selected="selected"书名/option

/select

span class="STYLE3"请输入/span

input type="text" name="name" /br /

input type="submit" value="提交" /

/form

/body

/html

跳转后的页面：

%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %

html

head

meta http-equiv="Content-Type" content="text/html; charset=gb2312" /

title无标题文档/title

head

%@ page import="test.BookCo" %

%@ page import="java.sql.*" %

body

jsp:useBean id="Co" class="test.BookCo" scope="application"

/jsp:useBean

center

h1图书信息/h1

table border="1" width="80%"

th书号/thth书名/thth作者/thth出版社/thth书籍简介/th

%

String name=request.getParameter("name");

String condition=request.getParameter("condition");

Co.setKeyword(name,condition);

ResultSet rs=Co.Boo();

while(rs.next())

{

out.print("trtd"+rs.getInt("bId")+"/td");

out.print("td"+rs.getString("bName")+"/td");

out.print("td"+rs.getString("bAuthor")+"/td");

out.print("td"+rs.getString("bPress")+"/td");

out.print("td"+rs.getString("bInfo")+"/td/tr");

}

rs.close();

%

/table

/center

/body

/html

javabean部分:

package test;

import java.sql.*;

import java.io.*;

import java.util.*;

public class BookCo{

public String name,condition;

Connection con=null;

String strurl="jdbc:odbc:bookstore";

Statement stmt=null;

ResultSet rs=null;

public BookCo()

{

name="";

condition="";

}

public void setKeyword(String s,String ss)

{

name=s;

condition=ss;

try{

byte[] b=name.getBytes("iso-8859-1");

name=new String(b);

byte[] bb=condition.getBytes("iso-8859-1");

condition=new String(bb);

}

catch(Exception e){System.out.println("error1:"+e.getMessage());}

}

public ResultSet Boo()

{

String drivername="sun.jdbc.odbc.JdbcOdbcDriver";

String sql="select * from books";

try {

Class.forName(drivername);

con=DriverManager.getConnection(strurl);

stmt=con.createStatement();

if(condition.equals("作者")){

sql="select * from books where bAuthor='"+name+"'";

}

else

if(condition.equals("书名"))

{

sql="select * from books where bName='"+name+"'";

}

rs=stmt.executeQuery(sql);

}

catch (Exception e){

System.out.println("connection fail!");

}

return rs;

}}

Java编写图书管理系统，使用XML存储

import java.io.File;

import java.io.FileOutputStream;

import java.util.ArrayList;

import java.util.List;

import java.util.Scanner;

import org.dom4j.Document;

import org.dom4j.DocumentHelper;

import org.dom4j.Element;

import org.dom4j.io.OutputFormat;

import org.dom4j.io.SAXReader;

import org.dom4j.io.XMLWriter;

public class Book {

private int no;

private String name;

private double value;

public Book() {

}

public Book(int no, String name, double value) {

this.no = no;

this.name = name;

this.value = value;

}

public double getValue() {

return value;

}

public void setValue(double value) {

this.value = value;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public int getNo() {

return no;

}

public void setNo(int no) {

this.no = no;

}

}

class BookList {

private ListBook bookList;

public BookList() {

bookList = readXML();

}

public long getCount() {

return bookList.size();

}

public ListBook getBookList() {

return bookList;

}

public void setBookList(ListBook bookList) {

this.bookList = bookList;

}

public void add(Book book) {

bookList.add(book);

}

public boolean delete(String name) {

Book book = query(name);

return bookList.remove(book);

}

public void update(Book bookBefore, Book bookAfter) {

bookList.remove(bookBefore);

add(bookAfter);

}

public Book query(String name) {

Book temp = null;

for (Book book : bookList) {

if (book.getName().equals(name)) {

temp = book;

}

}

return temp;

}

public synchronized void writeXmlDocument(Book book) {

try {

File file = new File("D:\\book.xml");

Document document = null;

Element root = null;

if (!file.exists()) {

// 新建student.xml文件并新增内容

document = DocumentHelper.createDocument();

root = document.addElement("Books");//添加根节点   

} else {

SAXReader saxReader = new SAXReader();

document = saxReader.read(file);

root = document.getRootElement();//获得根节点

}

Element secondRoot = root.addElement("Book");//二级节点   

//为二级节点添加属性，属性值为对应属性的值   

secondRoot.addElement("no").setText(book.getNo() + "");

secondRoot.addElement("name").setText(book.getName() + "");

secondRoot.addElement("value").setText(book.getValue() + "");

OutputFormat format = OutputFormat.createPrettyPrint();

format.setEncoding("GBK");

XMLWriter writer = new XMLWriter(new FileOutputStream("D:\\book.xml"), format);

writer.write(document);

writer.close();

document.clearContent();

} catch (Exception e) {

e.printStackTrace();

}

}

public synchronized ListBook readXML() {

ListBook list = new ArrayListBook();//创建list集合   

File file = null;

try {

file = new File("D:\\book.xml");//读取文件   

if (file.exists()) {

SAXReader saxReader = new SAXReader();

Document document = saxReader.read(file);

List nodeList = document.selectNodes("Books/Book");

for (int i = 0; i  nodeList.size(); i++) {

Element el = (Element) nodeList.get(i);

Book book = new Book();

book.setNo(Integer.parseInt(el.elementText("no")));

book.setName(el.elementText("name"));

book.setValue(Double.parseDouble(el.elementText("value")));

list.add(book);

}

}

} catch (Exception e) {

e.printStackTrace();

}

return list;

}

}

class Test {

public static void main(String args[]) {

BookList bl = new BookList();

boolean bBreak = true;

while (bBreak) {

System.out.println("请输入操作代码:");

System.out.println("1：添加 2：删除 3：修改 4：查询 5:书籍统计 6：退出");

Scanner sc = new Scanner(System.in);

int code = sc.nextInt();

if (code == 1) {

System.out.println("请输入编号");

int no = sc.nextInt();

System.out.println("请输入书名");

String name = sc.next();

System.out.println("请输入售价");

double value = sc.nextDouble();

Book book = new Book(no, name, value);

bl.add(book);

bl.writeXmlDocument(book);

} else if (code == 2) {

System.out.println("请输入要删除的书籍名");

String name = sc.next();

if (bl.delete(name)) {

System.out.println("删除成功");

} else {

System.out.println("书籍不存在");

}

} else if (code == 3) {

System.out.println("请输入要修改的书籍名");

String name = sc.next();

Book bookBefore = bl.query(name);

System.out.println("请输入新的编号");

int newNo = sc.nextInt();

System.out.println("请输入新的书名");

String newName = sc.next();

System.out.println("请输入新的售价");

double value = sc.nextDouble();

Book bookAfter = new Book(newNo, newName, value);

bl.update(bookBefore, bookAfter);

} else if (code == 4) {

System.out.println("请输入要查询的书籍名");

String name = sc.next();

Book book = bl.query(name);

System.out.println("编号：" + book.getNo() + " 书名：" + book.getName() + " 售价：" + book.getValue());

} else if (code == 5) {

ListBook list = bl.getBookList();

System.out.println("总书籍数：" + bl.getCount());

for (Book book : list) {

System.out.println("编号：" + book.getNo() + " 书名：" + book.getName() + " 售价：" + book.getValue());

}

} else if (code == 6) {

bBreak = false;

}

}

}

}

jar 包  dom4j.jar  jaxen-1.1.4.jar

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