java 收邮件 使用 mail包
import java.util.Properties;
import javax.mail.FetchProfile;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.internet.InternetAddress;
public class ReceiveMail
{
public ReceiveMail(){}
public static void main(String[] args)
{
receive();
}
public static void receive()
{
try
{
Properties props = new Properties();
Session s = Session.getInstance(props);
Store store = s.getStore("pop3");
//对应改成自己的用户名和密码
store.connect("pop.sina.com", "userName", "******");
Folder folder = store.getFolder("Inbox");
folder.open(Folder.READ_WRITE);
FetchProfile profile = new FetchProfile();
profile.add(FetchProfile.Item.ENVELOPE);
Message arraymessage[] = folder.getMessages();
folder.fetch(arraymessage, profile);
System.out.println("收件箱的邮件数：" + arraymessage.length);
for (int i = 0; i < arraymessage.length; i++)
{
//邮件发送者
String from = arraymessage[i].getfrom()[0].toString();
InternetAddress ia = new InternetAddress(from);
System.out.println("******" + i + "******");
System.out.println("from:" + ia.getPersonal() + '(' + ia.getAddress() + ')');
//邮件标题
System.out.println("Title:" + arraymessage[i].getSubject());
//邮件大小
System.out.println("Size:" + arraymessage[i].getSize(
相关文档：
create PROCEDURE pagelist
@tablename nvarchar(50),
@fieldname nvarchar(50)='*',
@pagesize int output,--每页显示记录条数
@currentpage int output,--第几页
@orderid nvarchar(50),--主键排序
@sort int,--排序方式，1表示升序，0表示降序排列
......
23.编程实现序列化的Student（sno,sname）对象在网络上的传输
package com.softeem.demo;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.net.ServerSocket;
import java.net.Socket;
class Student implem ......
程序源代码：
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Cursor;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JOptionPane; ......
源程序代码：
import java.awt.Color;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionAdapter;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
......
第2条：遇到多个构造器参数时要考虑用构建器
某个类的属性较多，初始化的时候又有一些是必须初始化的，而且类型有形同，
比如new Contact("姓名","显示名","手机号","飞信号","所在地",年龄,性别);
前5个属性是String 类型，后2个是int类型，在填写构造方法的时候很容易填写错位，或者少填写，或者颠倒了属性，
如� ......
