JavaEE5学习笔记04-JavaMail使用总结---3
1. 接收邮件实例
| /** * 简单的接收邮件例子 * * @author liuyan * */ public class ReciveMail {
private final static String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
private String account;
private String password;
private String pop3Host;
private int pop3Port;
private Store store;
//省略setter、getter
public Store getStore() throws MessagingException {
if (this.store == null || !this.store.isConnected()) { Properties properties = new Properties();
// gmail需要特殊处理SSL验证 if (isGmail()) { properties.setProperty("mail.pop3.socketFactory.class", SSL_FACTORY); }
Session session = Session.getDefaultInstance(properties);
// 使用pop3协议接收邮件 URLName url = new URLName("pop3", getPop3Host(), getPop3Port(), null, getAccount(), getPassword());
// 获得邮件的存储对象 Store store = session.getStore(url);
// 连接上 store.connect();
this.store = store; }
return store; }
public ReciveMail() {
}
/** * 获得消息 * * @throws MessagingException * @throws IOException */ public void getMessages() throws MessagingException, IOException {
// 获取INBOX文件夹，收件箱内 Folder inbox = getStore().getFolder("INBOX");
// 打开可读写的文件夹 inbox.open(Folder.READ_WRITE);
// 获得邮件实体对象数组 Message[] messages = inbox.getMessages();
// 遍历邮件 for (int i = 0; i < messages.length; i++) {
int j = i + 1;
System.out.println("第【" + j + "】封邮件");
// 邮件文本内容 System.out .println(getMailContent(messages[i], new StringBuffer("")) .toString());
// 获取邮件的附件 getFiles(messages[i]);
System.out .println("==============================================="); }
}
/** * 邮件的内容 * * @param part * @param result * @return * @throws IOException * @throws MessagingException * @throws MessagingException * @throws IOException */ private StringBuffer getMailContent(Part part, StringBuffer result) throws MessagingException, IOException { if (part.isMimeType("multipart/*")) {// 邮件是复杂类型的 Multipart mp = (Multipart) part.getContent();
// 邮件的整体部分body数量 int sum = mp.getCount();
// 第一部分是text/plain // 第二部分是text/html if (sum > 1) sum = 1;
for (int i = 0; i < sum; i++) { BodyPart bp = mp.getBodyPart(i);
// 递归 getMailContent(bp, result); }
} else if (part.isMimeType("text/*")) {// 邮件是纯文本类型的 try { String str = (String) part.getContent();
result.append(str);
} catch (IOException e) {
// gb2312需要异常处理 InputStream is = part.getInputStream();
byte[] b = new byte[1024];
//因为gb2312的内容需要在异常中特殊处理一下，所以直接从字节数组中获得String内容 is.read(b);
String newStr = new String(b);
result.append(newStr);
// e.printStackTrace(); } catch (MessagingException e) { // TODO Auto-generated catch block e.printStackTrace(); } } return result;
}
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