tongxunbu.java

J2EE的无线手机通讯运用软件

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.io.*;
import javax.microedition.rms.*;

public class TongXunBu extends MIDlet implements CommandListener
{
   Ticker newsTicker;
   private List menuList;
   private List commList;
   private List jishiList;

   private Command exitCommand;
   private Command execCommand;
   private Command menuCommand;
   private Command commCommand;
   private Command jishiCommand;
   private Command saveCommand;

   Form queryForm=null;
   Form modificationForm=null;
   Form deleteForm=null;
   Form jqueryForm=null;
   Form jmodificationForm=null;
   Form jdeleteForm=null;

   DateField dateField;
   TextField msgField;
   TextField keyField;
   TextField nameField;
   TextField ageField;
   TextField telField;
   TextField qqField;
   TextField EMailField;
   TextField addressField;




   String[] menuItem={"通讯簿","记事本"};
   String[] commItem={"新增","查询","修改","删除"};
   String[] jishiItem={"记事","查看","修改","删除"};

   Image[] menuImage={createImage("/tongxun.png"),
                      createImage("/jishi.png")};

   private Display display;
   private String currentScreen="";
   public static String criteria="";
   private int modificationID=0;
   private int deleteID=0;

   public TongXunBu(){
     display=Display.getDisplay(this);
     newsTicker=new Ticker("");
     exitCommand=new Command("离开",Command.EXIT,1);
     execCommand=new Command("执行",Command.OK,1);
     menuCommand=new Command("主目录",Command.SCREEN,1);
     commCommand=new Command("通讯簿",Command.SCREEN,1);
     jishiCommand=new Command("记事本",Command.SCREEN,1);
  }
//进入进程
   public void startApp(){
     doCommunication();
   }

   public void pauseApp(){}
   public void destroyApp(boolean unconditional){}

//命令设置
   public void commandAction(Command c,Displayable s){
     if(c==exitCommand){
        destroyApp(false);
        notifyDestroyed();
     }
     if(c==List.SELECT_COMMAND){
      if(currentScreen=="通讯簿"){
        int itemIndex=commList.getSelectedIndex();
        switch(itemIndex){
           case 0:{
                   doAppend();
                   break;
                  }
           case 1:{
                   doQuery();
                   break;
                  }
           case 2:{
                   doModification();
                   break;
                  }
           case 3:{
                   doDelete();
                   break;
                  }
         } 
       }
       else{
       }
     }
     if(c==menuCommand){
         display.setCurrent(menuList);
         currentScreen="主目录";
     }
     if(c==commCommand){
         doCommunication();
     }
     if(c==jishiCommand){
         dojishi();
     }
     if(c==menuCommand){
         doMenu();
     }
     if(c==execCommand){
 //********        if(currentScreen=="记事簿"){
         if(currentScreen=="通讯簿查询"){
            this.criteria=nameField.getString();
            doQueryPerson();
            queryForm=null;
         }
         if(currentScreen=="通讯簿删除"){
            doQueryPerson();
            doDeletePerson(this.deleteID);
         }
         if(currentScreen=="通讯簿修改"){
            modificationID=0;
            doQueryPerson();
            if(!nameField.getString().equals("无此数据")){
               System.out.println("i am here"+":"+modificationID);
               ageField=new TextField("生日",null,30,TextField.ANY);
               telField=new TextField("电话",null,30,TextField.ANY);
               qqField=new TextField("QQ",null,30,TextField.ANY);  
               EMailField=new TextField("E Mail",null,30,TextField.EMAILADDR);
               addressField=new TextField("地址",null,50,TextField.ANY);  
               saveCommand=new Command("存储",Command.SCREEN,1);
               modificationForm.addCommand(saveCommand);  
               modificationForm.removeCommand(execCommand); 
               modificationForm.append(ageField); 
               modificationForm.append(telField); 
               modificationForm.append(qqField); 
               modificationForm.append(EMailField); 
               modificationForm.append(addressField); 

            }
            else{
            }
         }
      }
     if(c==saveCommand)
         doSave();
   }
   
//读取图片
   private Image createImage(String name){
     Image aImage=null;
     try{
         aImage=Image.createImage(name);
     }
     catch(IOException e){
     }
     return aImage;
  }

//主菜单   
   private void doMenu(){
     currentScreen="主目录";
     display.setCurrent(menuList);
   }

//通讯簿菜单
   private void doCommunication(){
 //************    Image[] commIcon={};
     commList=new List("通讯簿",List.IMPLICIT,commItem,null);
     commList.addCommand(exitCommand);
     commList.setCommandListener(this);
     currentScreen="通讯簿";
     display.setCurrent(commList);
   }

//记事本菜单
   private void dojishi(){
// ************    Image[] commIcon={};
     jishiList=new List("记事本",List.IMPLICIT,jishiItem,null);
     jishiList.addCommand(jishiCommand);
     jishiList.addCommand(menuCommand);
     jishiList.setCommandListener(this);
     currentScreen="记事本";
     display.setCurrent(jishiList);
   }
// *******************  
//通讯簿新增窗口
   private void doAppend(){
     Form appendForm=new Form("新增");
     nameField=new TextField("姓名",null,8,TextField.ANY);
     ageField=new TextField("生日",null,30,TextField.ANY);
     telField=new TextField("电话",null,30,TextField.ANY);
     qqField=new TextField("QQ",null,30,TextField.ANY);  
     EMailField=new TextField("E Mail",null,30,TextField.EMAILADDR);
     addressField=new TextField("地址",null,50,TextField.ANY);  
     saveCommand=new Command("存储",Command.SCREEN,1);
     appendForm.append(nameField);
     appendForm.append(ageField);
     appendForm.append(telField);
     appendForm.append(qqField);
     appendForm.append(EMailField);
     appendForm.append(addressField);
     appendForm.addCommand(saveCommand);
     appendForm.addCommand(commCommand);
     appendForm.setCommandListener(this);
     currentScreen="通讯簿新增";
     display.setCurrent(appendForm);
   }
   
//通讯簿修改窗口
   private void doModification(){
     modificationForm=new Form("修改");
     nameField=new TextField("姓名",null,8,TextField.ANY);
     modificationForm.append(nameField);  
     modificationForm.addCommand(execCommand); 
     modificationForm.addCommand(commCommand);
     modificationForm.setCommandListener(this);
     currentScreen="通讯簿修改";
     display.setCurrent(modificationForm);
   }

//通讯簿查询窗口
   private void doQuery(){
     queryForm=new Form("查询");
     nameField=new TextField("姓名",null,8,TextField.ANY);
     queryForm.append(nameField);
     queryForm.addCommand(execCommand);
     queryForm.addCommand(commCommand);
     queryForm.setCommandListener(this);
     currentScreen="通讯簿查询";
     display.setCurrent(queryForm);
   }

//通讯簿删除窗口
   private void doDelete(){
     Form deleteForm=new Form("删除");
     nameField=new TextField("姓名",null,8,TextField.ANY);
     deleteForm.append(nameField);
     deleteForm.addCommand(execCommand);
     deleteForm.addCommand(commCommand);
     deleteForm.setCommandListener(this);
     currentScreen="通讯簿删除";
     System.out.println("记录已删除");
     display.setCurrent(deleteForm);
   }
   
//通讯簿新增记录存储
   private void doSave(){
     RecordStore rs=null;
     byte[] nameEmail=null;
     boolean existingOrNot=false;
     existingOrNot=existing("aperson");
     if(existingOrNot){
        try{
            rs=RecordStore.openRecordStore("aperson",false);
        }
        catch(Exception e){
        }
     }
     else{
        try{
            rs=RecordStore.openRecordStore("aperson",true);
        }
        catch(Exception e){
        }
     }
     person aperson=null;
     try{
         aperson=new person();
         aperson.write(nameField.getString(),
                       ageField.getString(),
                       telField.getString(),
                       qqField.getString(),
                       EMailField.getString(),
                       addressField.getString()
                       );
         byte[] data=aperson.changeToByteArray();
         int recordID=aperson.getRecordID();