用J2ME实现简单电子邮件发送功能

package com.j2medev.mail;

public class Message

{    private String to;

private String subject;

private String content;

public Message()

{

}

public Message(String to, String subject, String content)

{

this.to = to;

this.subject = subject;

this.content = content;

}

public String getContent()

{

return content;

}

public void setContent(String content)

{

this.content = content;

}

public String getSubject()

{

return subject;

}

public void setSubject(String subject)

{

this.subject = subject;

}  

public String getTo()

{

return to;

}

public void setTo(String to)

{

this.to = to;

}



public String toString()

{

return to+subject+content; 

}

}

/*

* Created on 2004-12-8

*

* TODO To change the template for this generated file go to

* Window - Preferences - Java - Code Style - Code Templates

*/

package com.j2medev.mail;
import javax.microedition.lcdui.Form;

import javax.microedition.lcdui.Item;

import javax.microedition.lcdui.*;

import javax.microedition.midlet.MIDlet;
/**

* @author P2800

* 

* TODO To change the template for this generated type comment go to Window -

* Preferences - Java - Code Style - Code Templates

*/

public class MainForm extends Form implements CommandListener

{
private MailClient midlet;

private TextField toField;

private TextField subField;    

private boolean first = true;

public static final Command nextCommand = new Command("NEXT", Command.OK, 1);
public MainForm(MailClient midlet, String arg0)

{

super(arg0);

this.midlet = midlet;

if(first)

{

first = false;

init();

}



}
public void init()

{

toField = new TextField("To:", null, 25, TextField.ANY);

subField = new TextField("Subject:", null, 30, TextField.ANY);

this.append(toField);

this.append(subField);

this.addCommand(nextCommand);

this.setCommandListener(this);        

}



public void commandAction(Command cmd,Displayable disp)

{

if(cmd == nextCommand)

{

String to = toField.getString();

String subject = subField.getString();

if(to == "" && subject == "")

{

midlet.displayAlert("Null to or sub",AlertType.WARNING,this);

}

else

{

midlet.getMessage().setTo(to);

midlet.getMessage().setSubject(subject);

midlet.getDisplay().setCurrent(midlet.getContentForm());

}

}

}

}
package com.j2medev.mail;
import javax.microedition.lcdui.Command;

import javax.microedition.lcdui.CommandListener;

import javax.microedition.lcdui.Displayable;

import javax.microedition.lcdui.TextBox;

import javax.microedition.midlet.MIDlet;
public class ContentForm extends TextBox implements CommandListener

{

private MailClient midlet;

private boolean first = true;

public static final Command sendCommand = new Command("SEND", Command.ITEM,

1);
public ContentForm(String arg0, String arg1, int arg2, int arg3,

MailClient midlet)

{

super(arg0, arg1, arg2, arg3);

this.midlet = midlet;

if (first)

{

first = false;

init();

}
}
public void init()

{

this.addCommand(sendCommand);

this.setCommandListener(this);

}
public void commandAction(Command cmd, Displayable disp)

{

if (cmd == sendCommand)

{

String content = this.getString();

midlet.getMessage().setContent(content);

System.out.println(midlet.getMessage());

try

{

synchronized (midlet)

{

midlet.notify();

}
} catch (Exception e)

{

}

}

}

}