图书管理系统java代码实现

时间：2021-11-28 17:27:31

本文实例为大家分享了java实现图书管理系统的具体代码，供大家参考，具体内容如下

/* (程序头部注释开始)
* 程序的版权和版本声明部分
* copyright (c) 2011, 烟台大学计算机学院学生
* all rights reserved.
* 文件名称：    《图书管理系统——java》                         
* 作    者：       刘江波                      
* 完成日期：    2012     年  3     月     1   日
* 版 本 号：    v3.0    

* 对任务及求解方法的描述部分
* 问题描述： 
* 程序头部的注释结束
*/

文件包的建立情况：

图书管理系统java代码实现

bookdao.java

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/*
 * to change this template, choose tools | templates
 * and open the template in the editor.
 */
 
package com.liu.dao;
 
import com.liu.po.bookbean;
import java.io.*;
import java.util.hashmap;
import java.util.map;
import java.util.logging.level;
import java.util.logging.logger;
 
/**
 *
 * @author asus
 */
public class bookdao {
 // 写
 public void writebook(map<integer,bookbean >bookmap){
 //
 fileoutputstream fos = null;
 objectoutputstream oos = null;
 try {
  fos = new fileoutputstream("f:\\缓存区\\book.txt");
  oos = new objectoutputstream(fos);
  oos.writeobject(bookmap);
  //清空缓存区
  oos.flush();
 }
 catch (filenotfoundexception ex) {
  logger.getlogger(typedao.class.getname()).log(level.severe, null, ex);
 }
 //异常级别高的在后边
 catch (ioexception ex) {
  logger.getlogger(typedao.class.getname()).log(level.severe, null, ex);
 }
 finally{
  try{
  //先开后闭
   oos.close();
   fos.close();
  }catch(ioexception ex){
  logger.getlogger(typedao.class.getname()).log(level.severe,null,ex);
  }
 }
 }
 
 //读
 public map<integer,bookbean>readbook(){
 fileinputstream fis = null;
 objectinputstream ois = null;
 map<integer, bookbean> map = null;
 try {
  fis = new fileinputstream("f:\\缓存区\\book.txt");
  ois = new objectinputstream(fis);
  map = (map<integer, bookbean>) ois.readobject();//出现异常进入catch
 } catch (classnotfoundexception ex) {
  logger.getlogger(typedao.class.getname()).log(level.severe, null, ex);
 } catch (filenotfoundexception ex) {
  logger.getlogger(typedao.class.getname()).log(level.severe, null, ex);
 } catch (ioexception ex) {
  //logger.getlogger(typedao.class.getname()).log(level.severe, null, ex);
  //ex.printstacktrace();
  map=new hashmap<integer,bookbean>();//出现异常时，进行创建map
 } finally{
  try {
  if(ois!=null){
   ois.close();
  }
  if(fis!=null){
   fis.close();
  }
 
  } catch (ioexception ex) {
  logger.getlogger(typedao.class.getname()).log(level.severe, null, ex);
  }
 }
 return map;
 }
}

 typedao.java

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/*
 * to change this template, choose tools | templates
 * and open the template in the editor.
 */
 
package com.liu.dao;
 
import com.liu.po.typebean;
import java.io.*;
import java.util.*;
import java.util.logging.*;
/**
 *
 * 对文件进行读和写操作
 */
public class typedao {
 
 // 写
 public void writetype(map<integer,typebean >typemap){
 //
 fileoutputstream fos = null;
 objectoutputstream oos = null;
 try {
  fos = new fileoutputstream("f:\\缓存区\\type.txt");
  oos = new objectoutputstream(fos);
  oos.writeobject(typemap);
  //清空缓存区
  oos.flush();
 }
 catch (filenotfoundexception ex) {
  logger.getlogger(typedao.class.getname()).log(level.severe, null, ex);
 }
 //异常级别高的在后边
 catch (ioexception ex) {
  logger.getlogger(typedao.class.getname()).log(level.severe, null, ex);
 }
 finally{
  try{
  //先开后闭
   oos.close();
   fos.close();
  }catch(ioexception ex){
  logger.getlogger(typedao.class.getname()).log(level.severe,null,ex);
  }
 }
 }
 
 //读
 public map<integer,typebean>readtype(){
 fileinputstream fis = null;
 objectinputstream ois = null;
 map<integer, typebean> map = null;
 try {
  fis = new fileinputstream("f:\\缓存区\\type.txt");
  ois = new objectinputstream(fis);
  map = (map<integer, typebean>) ois.readobject();//出现异常进入catch
 } catch (classnotfoundexception ex) {
  logger.getlogger(typedao.class.getname()).log(level.severe, null, ex);
 } catch (filenotfoundexception ex) {
  logger.getlogger(typedao.class.getname()).log(level.severe, null, ex);
 } catch (ioexception ex) {
  //logger.getlogger(typedao.class.getname()).log(level.severe, null, ex);
  //ex.printstacktrace();
  map=new hashmap<integer,typebean>();//出现异常时，进行创建map
 } finally{
  try {
  if(ois!=null){
   ois.close();
  }
  if(fis!=null){
   fis.close();
  }
   
  } catch (ioexception ex) {
  logger.getlogger(typedao.class.getname()).log(level.severe, null, ex);
  }
 }
 return map;
 }
}

bookbean.java

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/*
 * to change this template, choose tools | templates
 * and open the template in the editor.
 */
 
package com.liu.po;
 
import java.io.serializable;
 
/**
 *
 * @author asus
 */
public class bookbean implements serializable{
 
 private int id;
 private string bookname;
 private string booktype;
 private string memo;
 private string money;
 
 /**
 * @return the id
 */
 public int getid() {
 return id;
 }
 
 /**
 * @param id the id to set
 */
 public void setid(int id) {
 this.id = id;
 }
 
 /**
 * @return the bookname
 */
 public string getbookname() {
 return bookname;
 }
 
 /**
 * @param bookname the bookname to set
 */
 public void setbookname(string bookname) {
 this.bookname = bookname;
 }
 
 /**
 * @return the booktype
 */
 public string getbooktype() {
 return booktype;
 }
 
 /**
 * @param booktype the booktype to set
 */
 public void setbooktype(string booktype) {
 this.booktype = booktype;
 }
 
 /**
 * @return the memo
 */
 public string getmemo() {
 return memo;
 }
 
 /**
 * @param memo the memo to set
 */
 public void setmemo(string memo) {
 this.memo = memo;
 }
 
 /**
 * @return the money
 */
 public string getmoney() {
 return money;
 }
 
 /**
 * @param money the money to set
 */
 public void setmoney(string money) {
 this.money = money;
 }
}

typebean.java

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/*
 * to change this template, choose tools | templates
 * and open the template in the editor.
 */
 
package com.liu.po;
 
/**
 *
 * @author asus
 */
import java.io.serializable;
 
public class typebean implements serializable{
 
 private int id;
 private string typename;
 private string memo;
 
 /**
 * @return the id
 */
 public int getid() {
 return id;
 }
 
 /**
 * @param id the id to set
 */
 public void setid(int id) {
 this.id = id;
 }
 
 /**
 * @return the typename
 */
 public string gettypename() {
 return typename;
 }
 
 /**
 * @param typename the typename to set
 */
 public void settypename(string typename) {
 this.typename = typename;
 }
 
 /**
 * @return the memo
 */
 public string getmemo() {
 return memo;
 }
 
 /**
 * @param memo the memo to set
 */
 public void setmemo(string memo) {
 this.memo = memo;
 }
 
 
}

loginform.java

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/*
 * to change this template, choose tools | templates
 * and open the template in the editor.
 */
 
/*
 * loginform.java
 *
 * created on 2013-2-26, 18:33:36
 */
 
package com.liu.view;
 
import java.awt.event.keyadapter;
import java.awt.event.keyevent;
import javax.swing.joptionpane;
 
/**
 *
 * @author asus
 */
public class loginform extends javax.swing.jframe {
 
 /** creates new form loginform */
 public loginform() {
 initcomponents();
 }
 
 /** 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.
 */
 @suppresswarnings("unchecked")
 // <editor-fold defaultstate="collapsed" desc="generated code">   
 private void initcomponents() {
 
 jlabel1 = new javax.swing.jlabel();
 jlabel2 = new javax.swing.jlabel();
 jlabel3 = new javax.swing.jlabel();
 loginname = new javax.swing.jtextfield();
 loginpwd = new javax.swing.jpasswordfield();
 jbutton1 = new javax.swing.jbutton();
 
 setdefaultcloseoperation(javax.swing.windowconstants.exit_on_close);
 settitle("登陆界面");
 setbounds(new java.awt.rectangle(300, 200, 0, 0));
 seticonimage(new javax.swing.imageicon(getclass().getresource("/com/liu/resouce/logo.jpg")).getimage());
 addkeylistener(new java.awt.event.keyadapter() {
  public void keypressed(java.awt.event.keyevent evt) {
  formkeypressed(evt);
  }
 });
 
 jlabel1.setfont(new java.awt.font("宋体", 0, 36));
 jlabel1.setforeground(new java.awt.color(204, 0, 0));
 jlabel1.settext("图书管理系统");
 
 jlabel2.setfont(new java.awt.font("宋体", 0, 24));
 jlabel2.settext("用户名：");
 
 jlabel3.setfont(new java.awt.font("宋体", 0, 24));
 jlabel3.settext("密码：");
 
 loginname.setname(""); // noi18n
 loginname.addactionlistener(new java.awt.event.actionlistener() {
  public void actionperformed(java.awt.event.actionevent evt) {
  loginnameactionperformed(evt);
  }
 });
 loginname.addkeylistener(new java.awt.event.keyadapter() {
  public void keypressed(java.awt.event.keyevent evt) {
  loginnamekeypressed(evt);
  }
 });
 
 loginpwd.addkeylistener(new java.awt.event.keyadapter() {
  public void keypressed(java.awt.event.keyevent evt) {
  loginpwdkeypressed(evt);
  }
 });
 
 jbutton1.setfont(new java.awt.font("宋体", 0, 24)); // noi18n
 jbutton1.settext("登录");
 jbutton1.addactionlistener(new java.awt.event.actionlistener() {
  public void actionperformed(java.awt.event.actionevent evt) {
  jbutton1actionperformed(evt);
  }
 });
 
 javax.swing.grouplayout layout = new javax.swing.grouplayout(getcontentpane());
 getcontentpane().setlayout(layout);
 layout.sethorizontalgroup(
  layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addgroup(layout.createsequentialgroup()
  .addgap(97, 97, 97)
  .addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
   .addcomponent(jlabel2)
   .addcomponent(jlabel3))
  .addpreferredgap(javax.swing.layoutstyle.componentplacement.unrelated)
  .addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading, false)
   .addcomponent(loginpwd)
   .addcomponent(loginname, javax.swing.grouplayout.default_size, 215, short.max_value))
  .addcontainergap(88, short.max_value))
  .addgroup(javax.swing.grouplayout.alignment.trailing, layout.createsequentialgroup()
  .addcontainergap(130, short.max_value)
  .addcomponent(jlabel1, javax.swing.grouplayout.preferred_size, 263, javax.swing.grouplayout.preferred_size)
  .addgap(113, 113, 113))
  .addgroup(javax.swing.grouplayout.alignment.trailing, layout.createsequentialgroup()
  .addcontainergap(299, short.max_value)
  .addcomponent(jbutton1, javax.swing.grouplayout.preferred_size, 97, javax.swing.grouplayout.preferred_size)
  .addgap(110, 110, 110))
 );
 layout.setverticalgroup(
  layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addgroup(layout.createsequentialgroup()
  .addgap(50, 50, 50)
  .addcomponent(jlabel1, javax.swing.grouplayout.preferred_size, 45, javax.swing.grouplayout.preferred_size)
  .addgap(38, 38, 38)
  .addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
   .addcomponent(jlabel2)
   .addcomponent(loginname, javax.swing.grouplayout.preferred_size, 29, javax.swing.grouplayout.preferred_size))
  .addgap(26, 26, 26)
  .addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
   .addcomponent(jlabel3)
   .addcomponent(loginpwd, javax.swing.grouplayout.preferred_size, 29, javax.swing.grouplayout.preferred_size))
  .addgap(18, 18, 18)
  .addcomponent(jbutton1, javax.swing.grouplayout.preferred_size, 36, javax.swing.grouplayout.preferred_size)
  .addcontainergap(21, short.max_value))
 );
 
 pack();
 }// </editor-fold>   
 
 private void loginnameactionperformed(java.awt.event.actionevent evt) {     
 // todo add your handling code here:
}     
 
 private void jbutton1actionperformed(java.awt.event.actionevent evt) {     
  
 //1.先获取用户名和密码
 string name = loginname.gettext();
 string password = new string(loginpwd.getpassword());
 //2.进行验证
 if("admin".equals(name)&&"admin".equals(password))
 {
  //登陆成功
  //隐藏loginform，显示mainform
  this.setvisible(false);
  new mainform().setvisible(true);
 }
 else
 {
  //登录失败
  joptionpane.showmessagedialog(this, "用户名或密码错误！");
 }
 
 }     
 
 private void formkeypressed(java.awt.event.keyevent evt) {    
 //敲击键盘登陆
  
 }    
 
 private void loginnamekeypressed(java.awt.event.keyevent evt) {    
 //敲击键盘登陆
 if(evt.getkeytext(evt.getkeycode()).comparetoignorecase("enter")==0)
 {
  jbutton1.doclick();
 }
 }    
 
 private void loginpwdkeypressed(java.awt.event.keyevent evt) {    
 //敲击键盘登陆
 if(evt.getkeytext(evt.getkeycode()).comparetoignorecase("enter")==0)
 {
  jbutton1.doclick();
 }
 }    
 
 /**
 * @param args the command line arguments
 */
 public static void main(string args[]) {
 java.awt.eventqueue.invokelater(new runnable() {
  public void run() {
  new loginform().setvisible(true);
  }
 });
 }
 
 // variables declaration - do not modify  
 private javax.swing.jtextfield loginname;
 private javax.swing.jpasswordfield loginpwd;
 private javax.swing.jbutton jbutton1;
 private javax.swing.jlabel jlabel1;
 private javax.swing.jlabel jlabel2;
 private javax.swing.jlabel jlabel3;
 // end of variables declaration  
 
}

图书管理系统java代码实现

mainform.java

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/*
 * to change this template, choose tools | templates
 * and open the template in the editor.
 */
 
/*
 * mainform.java
 *
 * created on 2013-2-26, 18:35:25
 */
 
package com.liu.view;
 
/**
 *
 * @author asus
 */
public class mainform extends javax.swing.jframe {
 
 /** creates new form mainform */
 public mainform() {
 initcomponents();
  
 }
 
 /** 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.
 */
 @suppresswarnings("unchecked")
 // <editor-fold defaultstate="collapsed" desc="generated code">   
 private void initcomponents() {
 
 jlabel1 = new javax.swing.jlabel();
 jpanel1 = new javax.swing.jpanel();
 jlabel2 = new javax.swing.jlabel();
 jmenubar1 = new javax.swing.jmenubar();
 配置管理 = new javax.swing.jmenu();
 jmenuitem1 = new javax.swing.jmenuitem();
 jmenuitem2 = new javax.swing.jmenuitem();
 jmenu2 = new javax.swing.jmenu();
 jmenuitem4 = new javax.swing.jmenuitem();
 jmenu1 = new javax.swing.jmenu();
 jmenuitem3 = new javax.swing.jmenuitem();
 
 setdefaultcloseoperation(javax.swing.windowconstants.exit_on_close);
 settitle("图书管理系统");
 setbounds(new java.awt.rectangle(80, 60, 0, 0));
 seticonimage(new javax.swing.imageicon(getclass().getresource("/com/liu/resouce/logo.jpg")).getimage());
 
 jlabel1.setfont(new java.awt.font("宋体", 0, 48));
 jlabel1.setforeground(new java.awt.color(0, 204, 51));
 jlabel1.seticon(new javax.swing.imageicon(getclass().getresource("/com/liu/resouce/main.jpg"))); // noi18n
 
 jlabel2.setfont(new java.awt.font("宋体", 0, 48));
 jlabel2.setforeground(new java.awt.color(0, 0, 255));
 jlabel2.settext("欢迎使用图书借阅管理系统");
 
 javax.swing.grouplayout jpanel1layout = new javax.swing.grouplayout(jpanel1);
 jpanel1.setlayout(jpanel1layout);
 jpanel1layout.sethorizontalgroup(
  jpanel1layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addgroup(jpanel1layout.createsequentialgroup()
  .addgap(38, 38, 38)
  .addcomponent(jlabel2)
  .addcontainergap(63, short.max_value))
 );
 jpanel1layout.setverticalgroup(
  jpanel1layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addgroup(javax.swing.grouplayout.alignment.trailing, jpanel1layout.createsequentialgroup()
  .addcontainergap()
  .addcomponent(jlabel2, javax.swing.grouplayout.default_size, 78, short.max_value))
 );
 
 配置管理.settext("配置管理");
 
 jmenuitem1.setaccelerator(javax.swing.keystroke.getkeystroke(java.awt.event.keyevent.vk_l, java.awt.event.inputevent.ctrl_mask));
 jmenuitem1.settext("类别管理");
 jmenuitem1.addactionlistener(new java.awt.event.actionlistener() {
  public void actionperformed(java.awt.event.actionevent evt) {
  jmenuitem1actionperformed(evt);
  }
 });
 配置管理.add(jmenuitem1);
 
 jmenuitem2.setaccelerator(javax.swing.keystroke.getkeystroke(java.awt.event.keyevent.vk_t, java.awt.event.inputevent.ctrl_mask));
 jmenuitem2.settext("图书管理");
 jmenuitem2.addactionlistener(new java.awt.event.actionlistener() {
  public void actionperformed(java.awt.event.actionevent evt) {
  jmenuitem2actionperformed(evt);
  }
 });
 配置管理.add(jmenuitem2);
 
 jmenubar1.add(配置管理);
 
 jmenu2.settext("借书");
 
 jmenuitem4.setaccelerator(javax.swing.keystroke.getkeystroke(java.awt.event.keyevent.vk_j, java.awt.event.inputevent.ctrl_mask));
 jmenuitem4.settext("租书");
 jmenu2.add(jmenuitem4);
 
 jmenubar1.add(jmenu2);
 
 jmenu1.settext("还书");
 
 jmenuitem3.setaccelerator(javax.swing.keystroke.getkeystroke(java.awt.event.keyevent.vk_h, java.awt.event.inputevent.ctrl_mask));
 jmenuitem3.settext("还书");
 jmenu1.add(jmenuitem3);
 
 jmenubar1.add(jmenu1);
 
 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, 0, 0, short.max_value)
  .addgroup(layout.createsequentialgroup()
  .addgap(22, 22, 22)
  .addcomponent(jpanel1, javax.swing.grouplayout.default_size, javax.swing.grouplayout.default_size, short.max_value)
  .addcontainergap())
 );
 layout.setverticalgroup(
  layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addgroup(javax.swing.grouplayout.alignment.trailing, layout.createsequentialgroup()
  .addcontainergap()
  .addcomponent(jpanel1, javax.swing.grouplayout.default_size, javax.swing.grouplayout.default_size, short.max_value)
  .addpreferredgap(javax.swing.layoutstyle.componentplacement.related)
  .addcomponent(jlabel1, javax.swing.grouplayout.preferred_size, 411, javax.swing.grouplayout.preferred_size))
 );
 
 pack();
 }// </editor-fold>   
 
 private void jmenuitem1actionperformed(java.awt.event.actionevent evt) {     
 // 类型管理
  new typeform().setvisible(true);
 }     
 
 private void jmenuitem2actionperformed(java.awt.event.actionevent evt) {     
 // 图书管理
 new bookform().setvisible(true);
 }     
 
 /**
 * @param args the command line arguments
 */
 public static void main(string args[]) {
 java.awt.eventqueue.invokelater(new runnable() {
  public void run() {
  new mainform().setvisible(true);
  }
 });
 }
 
 // variables declaration - do not modify  
 private javax.swing.jlabel jlabel1;
 private javax.swing.jlabel jlabel2;
 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.jmenuitem jmenuitem3;
 private javax.swing.jmenuitem jmenuitem4;
 private javax.swing.jpanel jpanel1;
 private javax.swing.jmenu 配置管理;
 // end of variables declaration  
 
}

图书管理系统java代码实现

bookform.java

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/*
 * to change this template, choose tools | templates
 * and open the template in the editor.
 */
 
/*
 * bookform.java
 *
 * created on 2013-2-28, 8:23:01
 */
 
package com.liu.view;
 
import com.liu.dao.bookdao;
import com.liu.dao.typedao;
import com.liu.po.bookbean;
import com.liu.po.typebean;
import java.util.map;
import java.util.set;
import java.util.vector;
import javax.swing.defaultcomboboxmodel;
import javax.swing.joptionpane;
import javax.swing.table.defaulttablemodel;
 
/**
 *
 * @author asus
 */
public class bookform extends javax.swing.jframe {
 
 
 /** creates new form bookform */
 private map<integer,bookbean> map;
 private map<integer,typebean> map1;
 private bookdao bookdao;
 private typedao typedao;
 
 public bookform() {
 initcomponents();
 bookdao = new bookdao();
 typedao = new typedao();
 map = bookdao.readbook();
 map1 = typedao.readtype();
 inittype();
 initdata();
 }
 
 /** 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.
 */
 @suppresswarnings("unchecked")
 // <editor-fold defaultstate="collapsed" desc="generated code">   
 private void initcomponents() {
 
 jpanel1 = new javax.swing.jpanel();
 jscrollpane1 = new javax.swing.jscrollpane();
 booktable = new javax.swing.jtable();
 jpanel2 = new javax.swing.jpanel();
 bmemo = new javax.swing.jtextfield();
 jbutton1 = new javax.swing.jbutton();
 jbutton2 = new javax.swing.jbutton();
 jbutton3 = new javax.swing.jbutton();
 jbutton4 = new javax.swing.jbutton();
 jlabel1 = new javax.swing.jlabel();
 jlabel2 = new javax.swing.jlabel();
 jlabel3 = new javax.swing.jlabel();
 jlabel4 = new javax.swing.jlabel();
 bid = new javax.swing.jtextfield();
 bname = new javax.swing.jtextfield();
 btype = new javax.swing.jcombobox();
 jlabel5 = new javax.swing.jlabel();
 bmoney = new javax.swing.jtextfield();
 
 settitle("图书管理");
 setbounds(new java.awt.rectangle(100, 50, 0, 0));
 seticonimage(new javax.swing.imageicon(getclass().getresource("/com/liu/resouce/logo.jpg")).getimage());
 
 booktable.setfont(new java.awt.font("宋体", 0, 18)); // noi18n
 booktable.setmodel(new javax.swing.table.defaulttablemodel(
  new object [][] {
  {null, null, null, null, null},
  {null, null, null, null, null},
  {null, null, null, null, null},
  {null, null, null, null, null},
  {null, null, null, null, null},
  {null, null, null, null, null},
  {null, null, null, null, null},
  {null, null, null, null, null},
  {null, null, null, null, null},
  {null, null, null, null, null}
  },
  new string [] {
  "序号", "图书名称", "图书类型", "租金", "备注"
  }
 ) {
  class[] types = new class [] {
  java.lang.integer.class, java.lang.string.class, java.lang.string.class, java.lang.string.class, java.lang.string.class
  };
  boolean[] canedit = new boolean [] {
  false, false, false, false, false
  };
 
  public class getcolumnclass(int columnindex) {
  return types [columnindex];
  }
 
  public boolean iscelleditable(int rowindex, int columnindex) {
  return canedit [columnindex];
  }
 });
 booktable.addmouselistener(new java.awt.event.mouseadapter() {
  public void mouseclicked(java.awt.event.mouseevent evt) {
  booktablemouseclicked(evt);
  }
 });
 jscrollpane1.setviewportview(booktable);
 
 jpanel2.setborder(javax.swing.borderfactory.createtitledborder(null, "详细信息", javax.swing.border.titledborder.default_justification, javax.swing.border.titledborder.default_position, new java.awt.font("宋体", 0, 18))); // noi18n
 
 bmemo.setfont(new java.awt.font("宋体", 0, 18));
 
 jbutton1.settext("新增");
 jbutton1.addactionlistener(new java.awt.event.actionlistener() {
  public void actionperformed(java.awt.event.actionevent evt) {
  jbutton1actionperformed(evt);
  }
 });
 
 jbutton2.settext("保存");
 jbutton2.addactionlistener(new java.awt.event.actionlistener() {
  public void actionperformed(java.awt.event.actionevent evt) {
  jbutton2actionperformed(evt);
  }
 });
 
 jbutton3.settext("更新");
 jbutton3.addactionlistener(new java.awt.event.actionlistener() {
  public void actionperformed(java.awt.event.actionevent evt) {
  jbutton3actionperformed(evt);
  }
 });
 
 jbutton4.settext("删除");
 jbutton4.addactionlistener(new java.awt.event.actionlistener() {
  public void actionperformed(java.awt.event.actionevent evt) {
  jbutton4actionperformed(evt);
  }
 });
 
 jlabel1.setfont(new java.awt.font("宋体", 0, 18));
 jlabel1.settext("序号：");
 
 jlabel2.setfont(new java.awt.font("宋体", 0, 18));
 jlabel2.settext("名称：");
 
 jlabel3.setfont(new java.awt.font("宋体", 0, 18));
 jlabel3.settext("类型：");
 
 jlabel4.setfont(new java.awt.font("宋体", 0, 18));
 jlabel4.settext("备注：");
 
 bid.setfont(new java.awt.font("宋体", 0, 18));
 
 bname.setfont(new java.awt.font("宋体", 0, 18));
 
 btype.setfont(new java.awt.font("宋体", 0, 18));
 btype.setmodel(new javax.swing.defaultcomboboxmodel(new string[] { "文学类", "教育类", "科技类", "文艺类" }));
 btype.addactionlistener(new java.awt.event.actionlistener() {
  public void actionperformed(java.awt.event.actionevent evt) {
  btypeactionperformed(evt);
  }
 });
 
 jlabel5.setfont(new java.awt.font("宋体", 0, 18));
 jlabel5.settext("租金：");
 
 javax.swing.grouplayout jpanel2layout = new javax.swing.grouplayout(jpanel2);
 jpanel2.setlayout(jpanel2layout);
 jpanel2layout.sethorizontalgroup(
  jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addgroup(jpanel2layout.createsequentialgroup()
  .addgap(33, 33, 33)
  .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
   .addgroup(jpanel2layout.createsequentialgroup()
   .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
    .addcomponent(jlabel2, javax.swing.grouplayout.default_size, 83, short.max_value)
    .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.trailing)
    .addcomponent(jlabel3)
    .addcomponent(jlabel5)
    .addcomponent(jlabel4)))
   .addpreferredgap(javax.swing.layoutstyle.componentplacement.related))
   .addgroup(jpanel2layout.createsequentialgroup()
   .addcomponent(jlabel1)
   .addgap(33, 33, 33)))
  .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
   .addcomponent(bmemo, javax.swing.grouplayout.default_size, 375, short.max_value)
   .addcomponent(bid, javax.swing.grouplayout.default_size, 375, short.max_value)
   .addcomponent(bname, javax.swing.grouplayout.default_size, 375, short.max_value)
   .addcomponent(bmoney, javax.swing.grouplayout.default_size, 375, short.max_value)
   .addgroup(jpanel2layout.createsequentialgroup()
   .addcomponent(jbutton1, javax.swing.grouplayout.preferred_size, 73, javax.swing.grouplayout.preferred_size)
   .addgap(28, 28, 28)
   .addcomponent(jbutton2, javax.swing.grouplayout.preferred_size, 69, javax.swing.grouplayout.preferred_size)
   .addgap(30, 30, 30)
   .addcomponent(jbutton3, javax.swing.grouplayout.preferred_size, 73, javax.swing.grouplayout.preferred_size)
   .addpreferredgap(javax.swing.layoutstyle.componentplacement.related, 28, short.max_value)
   .addcomponent(jbutton4, javax.swing.grouplayout.preferred_size, 74, javax.swing.grouplayout.preferred_size))
   .addcomponent(btype, 0, 375, short.max_value))
  .addgap(65, 65, 65))
 );
 jpanel2layout.setverticalgroup(
  jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addgroup(javax.swing.grouplayout.alignment.trailing, jpanel2layout.createsequentialgroup()
  .addcontainergap()
  .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
   .addcomponent(jlabel1, javax.swing.grouplayout.preferred_size, 25, javax.swing.grouplayout.preferred_size)
   .addcomponent(bid, javax.swing.grouplayout.preferred_size, 37, javax.swing.grouplayout.preferred_size))
  .addgap(13, 13, 13)
  .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
   .addcomponent(jlabel2)
   .addcomponent(bname, javax.swing.grouplayout.preferred_size, 37, javax.swing.grouplayout.preferred_size))
  .addgap(18, 18, 18)
  .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
   .addcomponent(jlabel3)
   .addcomponent(btype, javax.swing.grouplayout.preferred_size, 30, javax.swing.grouplayout.preferred_size))
  .addgap(26, 26, 26)
  .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
   .addcomponent(jlabel5)
   .addcomponent(bmoney, javax.swing.grouplayout.preferred_size, 35, javax.swing.grouplayout.preferred_size))
  .addgap(32, 32, 32)
  .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
   .addgroup(jpanel2layout.createsequentialgroup()
   .addcomponent(bmemo, javax.swing.grouplayout.preferred_size, 58, javax.swing.grouplayout.preferred_size)
   .addgap(64, 64, 64)
   .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
    .addcomponent(jbutton1, javax.swing.grouplayout.preferred_size, 32, javax.swing.grouplayout.preferred_size)
    .addcomponent(jbutton2, javax.swing.grouplayout.preferred_size, 32, javax.swing.grouplayout.preferred_size)
    .addcomponent(jbutton3, javax.swing.grouplayout.preferred_size, 31, javax.swing.grouplayout.preferred_size)
    .addcomponent(jbutton4, javax.swing.grouplayout.preferred_size, 32, javax.swing.grouplayout.preferred_size)))
   .addcomponent(jlabel4))
  .addgap(22, 22, 22))
 );
 
 javax.swing.grouplayout jpanel1layout = new javax.swing.grouplayout(jpanel1);
 jpanel1.setlayout(jpanel1layout);
 jpanel1layout.sethorizontalgroup(
  jpanel1layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addcomponent(jscrollpane1, javax.swing.grouplayout.alignment.trailing, javax.swing.grouplayout.default_size, 795, short.max_value)
  .addgroup(jpanel1layout.createsequentialgroup()
  .addgap(50, 50, 50)
  .addcomponent(jpanel2, javax.swing.grouplayout.preferred_size, javax.swing.grouplayout.default_size, javax.swing.grouplayout.preferred_size)
  .addcontainergap(173, short.max_value))
 );
 jpanel1layout.setverticalgroup(
  jpanel1layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addgroup(jpanel1layout.createsequentialgroup()
  .addcomponent(jscrollpane1, javax.swing.grouplayout.preferred_size, 192, javax.swing.grouplayout.preferred_size)
  .addgap(10, 10, 10)
  .addcomponent(jpanel2, javax.swing.grouplayout.default_size, javax.swing.grouplayout.default_size, short.max_value))
 );
 
 javax.swing.grouplayout layout = new javax.swing.grouplayout(getcontentpane());
 getcontentpane().setlayout(layout);
 layout.sethorizontalgroup(
  layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addcomponent(jpanel1, javax.swing.grouplayout.default_size, javax.swing.grouplayout.default_size, short.max_value)
 );
 layout.setverticalgroup(
  layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addcomponent(jpanel1, javax.swing.grouplayout.default_size, javax.swing.grouplayout.default_size, short.max_value)
 );
 
 pack();
 }// </editor-fold>   
 //表格数据的初始化
 public void initdata(){
 //加载数据
 defaulttablemodel dtm = (defaulttablemodel)booktable.getmodel();
 //清空表
 while(dtm.getrowcount()>0){
  dtm.removerow(0);
 }
 //加载数据
 set<integer>set = map.keyset();
 for(integer i:set){
  bookbean bean = map.get(i);
  vector v = new vector();
  v.add(bean.getid());
  v.add(bean.getbookname());
  v.add(bean.getbooktype());
  v.add(bean.getmoney());
  v.add(bean.getmemo());
  dtm.addrow(v);
 }
 }
 //获取类别管理的所有类别
 public void inittype(){
 set<integer> set = map1.keyset();
 defaultcomboboxmodel dcm = (defaultcomboboxmodel)btype.getmodel();
 dcm.removeallelements();
 for(integer i:set){
  typebean bean = map1.get(i);
  dcm.addelement(bean.gettypename());
 }
 
 }
 private void jbutton2actionperformed(java.awt.event.actionevent evt) {     
 // 保存功能
  //先保存文本框里的值
 string id = bid.gettext();
 string bookname = bname.gettext();
 string booktype = (string) btype.getselecteditem();
 string memo = bmemo.gettext();
 string money = bmoney.gettext();
 
 //封装成对象
 bookbean bean = new bookbean();
 
 bean.setid(integer.parseint(id));
 bean.setbookname(bookname);
 bean.setbooktype(booktype);
 bean.setmemo(memo);
 bean.setmoney(money);
 
 //将bean放到map里面
  // map<integer,typebean>map = new hashmap<integer,typebean>();
 map.put(integer.parseint(id), bean);
 //将map放到文件里面
 bookdao.writebook(map);
 //刷新table
 initdata();
 }     
 
 private void jbutton1actionperformed(java.awt.event.actionevent evt) {     
  // 新增时，将文本框里的信息进行清空，并将序列号置为可编辑。
 bid.setenabled(true);
 
 bid.settext("");
 bname.settext("");
 btype.setselecteditem("");
 bmemo.settext("");
 bmoney.settext("");
 
 }     
 
 private void booktablemouseclicked(java.awt.event.mouseevent evt) {     
 //获取选中行号及序列号
 int currentrow = booktable.getselectedrow();
 //bookbean bean = map.get( currentrow);
  // 将选中的行，显示到信息栏中
 bid.settext((integer) booktable.getvalueat(currentrow, 0)+"");
 bname.settext((string) booktable.getvalueat(currentrow, 1));
 btype.setselecteditem((string) booktable.getvalueat(currentrow, 2));
 bmoney.settext((string) booktable.getvalueat(currentrow, 3));
 bmemo.settext((string) booktable.getvalueat(currentrow, 4));
 
 //bmemo.settext(bean.getmemo());
 
 bid.setenabled(false); //序号框不可编辑
 }    
 
 private void jbutton4actionperformed(java.awt.event.actionevent evt) {     
  // 删除操作
 //获取选中行号及序列号
 int currentrow = booktable.getselectedrow();
 int id = (integer)booktable.getvalueat(currentrow, 0);
 map.remove(id);
 bookdao.writebook(map);
 joptionpane.showmessagedialog(this,"类别删除成功");
 initdata();
 }     
 
 private void btypeactionperformed(java.awt.event.actionevent evt) {    
 // todo add your handling code here:
}    
 
 private void jbutton3actionperformed(java.awt.event.actionevent evt) {     
 // 更新操作
 //先保存文本框里的值
 int currentrow = booktable.getselectedrow();
 int id = (integer) booktable.getvalueat(currentrow, 0);
 
 string bookname = bname.gettext();
 string booktype = (string) btype.getselecteditem();
 string memo = bmemo.gettext();
 string money = bmoney.gettext();
 //封装成对象
 bookbean bean = new bookbean();
 bean.setid(id);
 bean.setbookname(bookname);
 bean.setbooktype(booktype);
 bean.setmemo(memo);
 bean.setmoney(money);
 
 //将bean放到map里面
  // map<integer,typebean>map = new hashmap<integer,typebean>();
 map.put(id, bean);
 //将map放到文件里面
 bookdao.writebook(map);
 //刷新table
 joptionpane.showmessagedialog(this,"类别更新成功");
 initdata();
 }     
 
 /**
 * @param args the command line arguments
 */
 public static void main(string args[]) {
 java.awt.eventqueue.invokelater(new runnable() {
  public void run() {
  new bookform().setvisible(true);
  }
 });
 }
 
 // variables declaration - do not modify  
 private javax.swing.jtextfield bid;
 private javax.swing.jtextfield bmemo;
 private javax.swing.jtextfield bmoney;
 private javax.swing.jtextfield bname;
 private javax.swing.jtable booktable;
 private javax.swing.jcombobox btype;
 private javax.swing.jbutton jbutton1;
 private javax.swing.jbutton jbutton2;
 private javax.swing.jbutton jbutton3;
 private javax.swing.jbutton jbutton4;
 private javax.swing.jlabel jlabel1;
 private javax.swing.jlabel jlabel2;
 private javax.swing.jlabel jlabel3;
 private javax.swing.jlabel jlabel4;
 private javax.swing.jlabel jlabel5;
 private javax.swing.jpanel jpanel1;
 private javax.swing.jpanel jpanel2;
 private javax.swing.jscrollpane jscrollpane1;
 // end of variables declaration  
 
}

图书管理系统java代码实现

typeform.java

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/*
 * to change this template, choose tools | templates
 * and open the template in the editor.
 */
 
/*
 * typeform.java
 *
 * created on 2013-2-26, 19:07:51
 */
 
package com.liu.view;
import com.liu.dao.typedao;
import com.liu.po.typebean;
import java.util.hashmap;
import java.util.map;
import java.util.set;
import java.util.vector;
import javax.swing.joptionpane;
import javax.swing.table.defaulttablemodel;
 
/**
 *
 * @author asus
 */
public class typeform extends javax.swing.jframe {
 
 private typedao typedao;
 private map<integer,typebean> map;
 /** creates new form typeform */
 public typeform() {
 initcomponents();
 typedao = new typedao();
 map = typedao.readtype();
 initdata();
 }
 
 /** 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.
 */
 @suppresswarnings("unchecked")
 // <editor-fold defaultstate="collapsed" desc="generated code">   
 private void initcomponents() {
 
 jpanel1 = new javax.swing.jpanel();
 jscrollpane1 = new javax.swing.jscrollpane();
 typetable = new javax.swing.jtable();
 jpanel2 = new javax.swing.jpanel();
 jlabel1 = new javax.swing.jlabel();
 jlabel2 = new javax.swing.jlabel();
 jlabel3 = new javax.swing.jlabel();
 tid = new javax.swing.jtextfield();
 tname = new javax.swing.jtextfield();
 jscrollpane2 = new javax.swing.jscrollpane();
 tmemo = new javax.swing.jtextarea();
 jbutton1 = new javax.swing.jbutton();
 jbutton3 = new javax.swing.jbutton();
 jbutton4 = new javax.swing.jbutton();
 jbutton5 = new javax.swing.jbutton();
 
 settitle("类型管理");
 setbounds(new java.awt.rectangle(100, 50, 0, 0));
 seticonimage(new javax.swing.imageicon(getclass().getresource("/com/liu/resouce/logo.jpg")).getimage());
 
 typetable.setfont(new java.awt.font("宋体", 0, 18));
 typetable.setmodel(new javax.swing.table.defaulttablemodel(
  new object [][] {
  {null, null, null},
  {null, null, null},
  {null, null, null},
  {null, null, null}
  },
  new string [] {
  "序号", "类别名称", "备注"
  }
 ) {
  class[] types = new class [] {
  java.lang.integer.class, java.lang.string.class, java.lang.string.class
  };
  boolean[] canedit = new boolean [] {
  false, false, false
  };
 
  public class getcolumnclass(int columnindex) {
  return types [columnindex];
  }
 
  public boolean iscelleditable(int rowindex, int columnindex) {
  return canedit [columnindex];
  }
 });
 typetable.setcolumnselectionallowed(true);
 typetable.addmouselistener(new java.awt.event.mouseadapter() {
  public void mouseclicked(java.awt.event.mouseevent evt) {
  typetablemouseclicked(evt);
  }
 });
 typetable.addcontainerlistener(new java.awt.event.containeradapter() {
  public void componentadded(java.awt.event.containerevent evt) {
  typetablecomponentadded(evt);
  }
 });
 jscrollpane1.setviewportview(typetable);
 typetable.getcolumnmodel().getselectionmodel().setselectionmode(javax.swing.listselectionmodel.single_interval_selection);
 typetable.getcolumnmodel().getcolumn(0).setresizable(false);
 typetable.getcolumnmodel().getcolumn(2).setresizable(false);
 
 jpanel2.setborder(javax.swing.borderfactory.createtitledborder(null, "类别信息", javax.swing.border.titledborder.default_justification, javax.swing.border.titledborder.default_position, new java.awt.font("宋体", 0, 18))); // noi18n
 
 jlabel1.setfont(new java.awt.font("宋体", 0, 18));
 jlabel1.settext("序号：");
 
 jlabel2.setfont(new java.awt.font("宋体", 0, 18));
 jlabel2.settext("类别名称：");
 
 jlabel3.setfont(new java.awt.font("宋体", 0, 18));
 jlabel3.settext("备注：");
 
 tid.setfont(new java.awt.font("宋体", 0, 18));
 tid.addactionlistener(new java.awt.event.actionlistener() {
  public void actionperformed(java.awt.event.actionevent evt) {
  tidactionperformed(evt);
  }
 });
 
 tname.setfont(new java.awt.font("宋体", 0, 18));
 
 tmemo.setcolumns(20);
 tmemo.setfont(new java.awt.font("monospaced", 0, 18));
 tmemo.setrows(5);
 jscrollpane2.setviewportview(tmemo);
 
 jbutton1.settext("保存");
 jbutton1.addactionlistener(new java.awt.event.actionlistener() {
  public void actionperformed(java.awt.event.actionevent evt) {
  jbutton1actionperformed(evt);
  }
 });
 
 jbutton3.settext("更新");
 jbutton3.addmouselistener(new java.awt.event.mouseadapter() {
  public void mouseclicked(java.awt.event.mouseevent evt) {
  jbutton3mouseclicked(evt);
  }
 });
 jbutton3.addactionlistener(new java.awt.event.actionlistener() {
  public void actionperformed(java.awt.event.actionevent evt) {
  jbutton3actionperformed(evt);
  }
 });
 
 jbutton4.settext("删除");
 jbutton4.addactionlistener(new java.awt.event.actionlistener() {
  public void actionperformed(java.awt.event.actionevent evt) {
  jbutton4actionperformed(evt);
  }
 });
 
 jbutton5.settext("新增");
 jbutton5.addactionlistener(new java.awt.event.actionlistener() {
  public void actionperformed(java.awt.event.actionevent evt) {
  jbutton5actionperformed(evt);
  }
 });
 
 javax.swing.grouplayout jpanel2layout = new javax.swing.grouplayout(jpanel2);
 jpanel2.setlayout(jpanel2layout);
 jpanel2layout.sethorizontalgroup(
  jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addgroup(jpanel2layout.createsequentialgroup()
  .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
   .addgroup(jpanel2layout.createsequentialgroup()
   .addgap(39, 39, 39)
   .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
    .addgroup(jpanel2layout.createsequentialgroup()
    .addpreferredgap(javax.swing.layoutstyle.componentplacement.related)
    .addcomponent(jlabel2, javax.swing.grouplayout.preferred_size, 90, javax.swing.grouplayout.preferred_size)
    .addpreferredgap(javax.swing.layoutstyle.componentplacement.unrelated)
    .addcomponent(tname, javax.swing.grouplayout.default_size, 341, short.max_value))
    .addgroup(jpanel2layout.createsequentialgroup()
    .addpreferredgap(javax.swing.layoutstyle.componentplacement.related)
    .addcomponent(jlabel3)
    .addpreferredgap(javax.swing.layoutstyle.componentplacement.related)
    .addcomponent(jscrollpane2, javax.swing.grouplayout.preferred_size, 383, javax.swing.grouplayout.preferred_size))
    .addgroup(jpanel2layout.createsequentialgroup()
    .addcomponent(jlabel1)
    .addpreferredgap(javax.swing.layoutstyle.componentplacement.related)
    .addcomponent(tid, javax.swing.grouplayout.default_size, 383, short.max_value))))
   .addgroup(jpanel2layout.createsequentialgroup()
   .addgap(70, 70, 70)
   .addcomponent(jbutton5, javax.swing.grouplayout.preferred_size, 69, javax.swing.grouplayout.preferred_size)
   .addgap(41, 41, 41)
   .addcomponent(jbutton1, javax.swing.grouplayout.preferred_size, 68, javax.swing.grouplayout.preferred_size)
   .addgap(37, 37, 37)
   .addcomponent(jbutton3, javax.swing.grouplayout.preferred_size, 68, javax.swing.grouplayout.preferred_size)
   .addpreferredgap(javax.swing.layoutstyle.componentplacement.related, 40, short.max_value)
   .addcomponent(jbutton4, javax.swing.grouplayout.preferred_size, 67, javax.swing.grouplayout.preferred_size)
   .addgap(20, 20, 20)))
  .addgap(83, 83, 83))
 );
 jpanel2layout.setverticalgroup(
  jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addgroup(jpanel2layout.createsequentialgroup()
  .addgap(31, 31, 31)
  .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
   .addcomponent(jlabel1, javax.swing.grouplayout.preferred_size, 21, javax.swing.grouplayout.preferred_size)
   .addcomponent(tid, javax.swing.grouplayout.preferred_size, 34, javax.swing.grouplayout.preferred_size))
  .addgap(27, 27, 27)
  .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
   .addcomponent(jlabel2, javax.swing.grouplayout.preferred_size, 21, javax.swing.grouplayout.preferred_size)
   .addcomponent(tname, javax.swing.grouplayout.preferred_size, 34, javax.swing.grouplayout.preferred_size))
  .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
   .addgroup(jpanel2layout.createsequentialgroup()
   .addgap(45, 45, 45)
   .addcomponent(jlabel3))
   .addgroup(jpanel2layout.createsequentialgroup()
   .addgap(24, 24, 24)
   .addcomponent(jscrollpane2, javax.swing.grouplayout.preferred_size, 92, javax.swing.grouplayout.preferred_size)))
  .addgap(35, 35, 35)
  .addgroup(jpanel2layout.createparallelgroup(javax.swing.grouplayout.alignment.baseline)
   .addcomponent(jbutton5, javax.swing.grouplayout.preferred_size, 34, javax.swing.grouplayout.preferred_size)
   .addcomponent(jbutton1, javax.swing.grouplayout.preferred_size, 33, javax.swing.grouplayout.preferred_size)
   .addcomponent(jbutton3, javax.swing.grouplayout.preferred_size, 32, javax.swing.grouplayout.preferred_size)
   .addcomponent(jbutton4, javax.swing.grouplayout.preferred_size, 33, javax.swing.grouplayout.preferred_size))
  .addgap(18, 18, 18))
 );
 
 javax.swing.grouplayout jpanel1layout = new javax.swing.grouplayout(jpanel1);
 jpanel1.setlayout(jpanel1layout);
 jpanel1layout.sethorizontalgroup(
  jpanel1layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addgroup(jpanel1layout.createsequentialgroup()
  .addgap(66, 66, 66)
  .addcomponent(jpanel2, javax.swing.grouplayout.preferred_size, javax.swing.grouplayout.default_size, javax.swing.grouplayout.preferred_size)
  .addcontainergap(55, short.max_value))
  .addcomponent(jscrollpane1, javax.swing.grouplayout.default_size, 696, short.max_value)
 );
 jpanel1layout.setverticalgroup(
  jpanel1layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addgroup(jpanel1layout.createsequentialgroup()
  .addcomponent(jscrollpane1, javax.swing.grouplayout.preferred_size, 177, javax.swing.grouplayout.preferred_size)
  .addgap(18, 18, 18)
  .addcomponent(jpanel2, javax.swing.grouplayout.default_size, 361, short.max_value)
  .addcontainergap())
 );
 
 javax.swing.grouplayout layout = new javax.swing.grouplayout(getcontentpane());
 getcontentpane().setlayout(layout);
 layout.sethorizontalgroup(
  layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addcomponent(jpanel1, javax.swing.grouplayout.preferred_size, javax.swing.grouplayout.default_size, javax.swing.grouplayout.preferred_size)
 );
 layout.setverticalgroup(
  layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)
  .addgroup(layout.createsequentialgroup()
  .addcomponent(jpanel1, javax.swing.grouplayout.preferred_size, javax.swing.grouplayout.default_size, javax.swing.grouplayout.preferred_size)
  .addcontainergap(javax.swing.grouplayout.default_size, short.max_value))
 );
 
 pack();
 }// </editor-fold>   
 
 //表格数据的初始化
 public void initdata(){
 //加载数据
 defaulttablemodel dtm = (defaulttablemodel)typetable.getmodel();
 //清空表
 while(dtm.getrowcount()>0){
  dtm.removerow(0);
 }
 //加载数据
 set<integer>set = map.keyset();
 for(integer i:set){
  typebean bean = map.get(i);
  vector v = new vector();
  v.add(bean.getid());
  v.add(bean.gettypename());
  v.add(bean.getmemo());
  dtm.addrow(v);
 }
 }
 
 private void tidactionperformed(java.awt.event.actionevent evt) {    
 // todo add your handling code here:
}    
 
 private void jbutton1actionperformed(java.awt.event.actionevent evt) {     
 //保存类型操作
 //先保存文本框里的值
 string id = tid.gettext();
 string typename = tname.gettext();
 string memo = tmemo.gettext();
 //封装成对象
 typebean bean = new typebean();
 bean.setid(integer.parseint(id));
 bean.setmemo(memo);
 bean.settypename(typename);
 //将bean放到map里面
  // map<integer,typebean>map = new hashmap<integer,typebean>();
 map.put(integer.parseint(id), bean);
 //将map放到文件里面
 typedao.writetype(map);
 //刷新table
 initdata();
 }     
 
 private void typetablecomponentadded(java.awt.event.containerevent evt) {     
 // todo add your handling code here:
}     
 
 private void jbutton4actionperformed(java.awt.event.actionevent evt) {     
 // 删除操作
 //获取选中行号及序列号
 int currentrow = typetable.getselectedrow();
 int id = (integer)typetable.getvalueat(currentrow, 0);
 map.remove(id);
 typedao.writetype(map);
 joptionpane.showmessagedialog(this,"类别删除成功");
 initdata();
 }     
 
 private void jbutton3mouseclicked(java.awt.event.mouseevent evt) {    
 
 
 }    
 
 private void jbutton3actionperformed(java.awt.event.actionevent evt) {     
 // 更新操作
 //先保存文本框里的值
 int currentrow = typetable.getselectedrow();
 int id = (integer) typetable.getvalueat(currentrow, 0);
  
 string typename = tname.gettext();
 string memo = tmemo.gettext();
 //封装成对象
 typebean bean = new typebean();
 bean.setid(id);
 bean.setmemo(memo);
 bean.settypename(typename);
 //将bean放到map里面
  // map<integer,typebean>map = new hashmap<integer,typebean>();
 map.put(id, bean);
 //将map放到文件里面
 typedao.writetype(map);
 //刷新table
 joptionpane.showmessagedialog(this,"类别更新成功");
 initdata();
 }     
 
 private void typetablemouseclicked(java.awt.event.mouseevent evt) {     
  //获取选中行号及序列号
 int currentrow = typetable.getselectedrow();
  // 将选中的行，显示到信息栏中
 tid.settext((integer) typetable.getvalueat(currentrow, 0)+"");
 tname.settext((string) typetable.getvalueat(currentrow, 1));
 tmemo.settext((string) typetable.getvalueat(currentrow, 2));
 
 tid.setenabled(false); //序号框不可编辑
 
 }    
 
 private void jbutton5actionperformed(java.awt.event.actionevent evt) {     
 // 新增时，将文本框里的信息进行清空，并将序列号置为可编辑。
 tid.setenabled(true);
 tid.settext("");
 tname.settext("");
 tmemo.settext("");
 
 }     
 
 /**
 * @param args the command line arguments
 */
 public static void main(string args[]) {
 java.awt.eventqueue.invokelater(new runnable() {
  public void run() {
  new typeform().setvisible(true);
  }
 });
 }
 
 // variables declaration - do not modify  
 private javax.swing.jbutton jbutton1;
 private javax.swing.jbutton jbutton3;
 private javax.swing.jbutton jbutton4;
 private javax.swing.jbutton jbutton5;
 private javax.swing.jlabel jlabel1;
 private javax.swing.jlabel jlabel2;
 private javax.swing.jlabel jlabel3;
 private javax.swing.jpanel jpanel1;
 private javax.swing.jpanel jpanel2;
 private javax.swing.jscrollpane jscrollpane1;
 private javax.swing.jscrollpane jscrollpane2;
 private javax.swing.jtextfield tid;
 private javax.swing.jtextarea tmemo;
 private javax.swing.jtextfield tname;
 private javax.swing.jtable typetable;
 // end of variables declaration  
 
}

图书管理系统java代码实现

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。

原文链接：http://blog.csdn.net/sdliujiangbo/article/details/8630421

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