本文为IMAP下载邮件Java代码调用示例。
import java.io.FileOutputStream;
import java.io.File;
import java.util.Properties;
import javax.mail.*;
public class ImapEmailDownloader {
public static void main(String[] args) {
// 邮件服务器配置
String host = "";
String username = "";
String password = "";
// 连接属性配置
Properties properties = new Properties();
properties.put("mail.store.protocol", "imap");
properties.put("mail.imap.host", host);
properties.put("mail.imap.port", "993");
properties.put("mail.imap.ssl.enable", "true");
//本地文件夹路径,请换成实际的文件夹路径。
String folderPath = "D:\\文件夹1\\文件夹1-1";
try {
// 创建会话对象
Session session = Session.getDefaultInstance(properties);
// 连接到邮件服务器
Store store = session.getStore();
store.connect(username, password);
// 打开收件箱
Folder inbox = store.getFolder("INBOX");
inbox.open(Folder.READ_ONLY);
// 获取邮件列表
Message[] messages = inbox.getMessages();
// 遍历邮件并下载EML格式的邮件
for (Message message : messages) {
String subject = message.getSubject();
String fileName = subject + ".eml";
//构建本地文件路径
String filePath = folderPath + File.separator + fileName;
//下载邮件到本地文件夹
FileOutputStream fos = new FileOutputStream(filePath);
message.writeTo(fos);
System.out.println("下载邮件:" + fileName);
}
// 关闭连接
inbox.close(false);
store.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}