James收发邮件

下载James

去apache的官网，找到James，下载。这里用的是2.3.2版本。

启动James

将下载好的James解压，如下图：



双击bin目录下的run.bat



已启动

修改配置文件

打开\apps\james\SAR-INF\config.xml

建议先大致读一遍这个配置文件，大概了解一下都配置了什么东东。

修改

<postmaster>Postmaster@localhost</postmaster>

把localhost改为所需的域名如：chen.cn

修改

<servername>localhost</servername>

把localhost改为chen.cn

修改

<servernames autodetect="true" autodetectIP="true">

true都改为false

找到：

<mailet match="RemoteAddrNotInNetwork=127.0.0.1" class="ToProcessor">
<processor> relay-denied </processor>
<notice>550 - Requested action not taken: relaying denied</notice>
</mailet>

把它注释掉

创建用户

用telnet连接到james的管理界面

telnet localhsot 4555

id和password都是root



敲help就知道怎么添加用户了，这里添加两个用户：

adduser chen chen

adduser uchen uchen

用javaMail收发邮件

代码：

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Properties;

import javax.mail.Address;
import javax.mail.Authenticator;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class JamesJavaMail
{
public static void sendMail() throws Exception
{
String host = "localhost";
final String from = "chen@chen.cn";
final String password = "chen";

Properties properties = new Properties();
properties.setProperty("mail.smtp.host", host);
properties.setProperty("mail.smtp.auth", "true");
properties.setProperty("mail.transport.protocol", "smtp");

Session session = Session.getDefaultInstance(properties,
new Authenticator()
{
@Override
public PasswordAuthentication getPasswordAuthentication()
{
return new PasswordAuthentication(from, password);
}
});

session.setDebug(true);

Message msg = new MimeMessage(session);
msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(from));

msg.setSubject("test");
msg.setText("I'm from "
+ from
+ ",just test java mail!"
+ new SimpleDateFormat("yyyy-MM-dd- HH:mm:ss")
.format(new Date()));

Transport transport = session.getTransport();

// 端口为25
transport.connect(host, 25, from, "chen");
transport.sendMessage(msg, new Address[]
{
new InternetAddress("623799957@qq.com"),
new InternetAddress("uchen@chen.cn")
});
transport.close();
System.out.println("发好了！");
}

public static void receiveMail() throws Exception
{
String host = "localhost";
final String username = "uchen";
final String password = "uchen";

Properties properties = new Properties();
properties.setProperty("mail.pop3.host", "localhost");
properties.setProperty("mail.pop3.auth", "true");
properties.setProperty("mail.transport.protocol", "pop3");

Session session = Session.getDefaultInstance(properties,
new Authenticator()
{
@Override
public PasswordAuthentication getPasswordAuthentication()
{
return new PasswordAuthentication(username, password);
}
});

try
{
Store store = session.getStore("pop3");
store.connect(host, username, password);

Folder folder = store.getFolder("INBOX");
folder.open(Folder.READ_ONLY); // 打开

Message message[] = folder.getMessages();
int n = message.length;
System.out.println("一共有 " + n + " 封");
if (n > 0)
{
for (Message m : message)
{
System.out.println(m.getFrom()[0] + "-----------"
+ m.getSubject());
try
{
m.writeTo(System.out);
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
folder.close(false);
store.close();

}
catch (MessagingException e)
{
e.printStackTrace();
}
System.out.println("收好了！！");
}

public static void main(String[] args) throws Exception
{
sendMail();
// receiveMail();
}
}