package webmail.mail.search;
import javax.mail.*;
import java.util.Iterator;
import java.util.Date;
import java.util.HashSet;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Properties;
import javax.mail.internet.*;
import javax.mail.search.*;
import webmail.mail.search.PersonalTerm;
import webmail.mail.search.JAttachTerm;
import webmail.mail.search.JBodyTerm;
import webmail.mail.*;
import webmail.mail.MimeMessageParser;
/**
* description: 一個簡單的郵件查找類，用來查找特定主題的郵件，特定日期，或者
* 是包含有附件的郵件
* lastmodify: 2004-10-09
* <p>注: JavaMail API中的javax.mail.search包中的BodyTerm和AttachTerm在使用時
* 有問題，這里使用我擴展SearchTerm的JBodyTerm和JAttachTerm，同時由于javax.
* mail.search包中的SubjectTerm取郵件主題直接調用JavaMail的getSubject()方法
* 這樣得到的結果有時候不正常，可以擴展SearchTerm來定義自己的Term(這個是下
* 一篇文章要寫的內容)
* @author wang weiping of BeiJing flow.Inc
* @version v1.0.1
*/
public class MessageQuerier {
private String body = "";
private ArrayList list = new ArrayList();
private int comparison = ComparisonTerm.EQ;
public static final String OR = "or";
public static final String AND = "and";
//默認構造方法
public MessageQuerier() {}
public void setComparison(String string) {
if (string.equals(">")) {
comparison = ComparisonTerm.GE;
} else if (string.equals("<")) {
comparison = ComparisonTerm.LE;
}
}
public int getComparison() {
return this.comparison;
}
/**
* 根據指定的字符串來查找所有郵件主題中包含此字符串的所有郵件
* @param subject 郵件主題中所要包含的字符串
*/
public void setSubject(String subject) {
SearchTerm subterm = new JSubjectTerm(subject);
list.add(subterm);
}
public void setRecipients(String recipients){
try{
SearchTerm rterm = new RecipientTerm (Message.RecipientType.TO,new InternetAddress(recipients));
list.add(rterm);
}catch(Exception ex){
//ignore exception
ex.printStackTrace();
}
}
public void setRecipientPersons(String recipientPersons){
SearchTerm rpTerm = new RecipientPersonTerm(recipientPersons);
list.add(rpTerm);
}
/**
* 根據指定的字符串來查找發件人地址中包含此字符串的所有郵件
* @param from 設置發件人地址中要包含的字符串
*/
public void setFrom(String from) {
try {
SearchTerm fterm = new FromTerm(new InternetAddress(from));
list.add(fterm);
} catch (Exception ex) {
System.err.println("CoffeeWebMail reportException: " + ex.toString());
ex.printStackTrace();
}
}
/**
* Created 2004-10-9
* 此類用了自定義的查找器PersonalTerm,此類從javax.mail.search.StringTerm
* 中繼承下來，重寫了StringTerm類的match()方法
* <p>根據發件人的姓名來查找此發件人發來的所有郵件</p>
* @param personal 設置發件人的姓名
*/
public void setPersonal(String personal) {
try {
PersonalTerm pterm = new PersonalTerm(personal);
list.add(pterm);
} catch (Exception ex) {
System.err.println("CoffeeWebMail reportException: " + ex.toString());
ex.printStackTrace();
}
}
/**
* Created 2004-10-09
*
* 此類用到了自定義的查找器JAttachTerm,此類從javax.mail.search.SearchTerm中
* 直接繼承下來，重寫了SearchTerm類的match()方法
* <p>根據是否包含附件來查找匹配的所有郵件</p>
* @param flag 是否有附件的標志 true or false
*/
public void setAttachFlag(boolean flag) {
try {
SearchTerm jaterm = new JAttachTerm(flag);
list.add(jaterm);
} catch (Exception ex) {
System.err.println("CoffeeWebMail reportException: " + ex.toString());
ex.printStackTrace();
}
}
/**
* Created 2004-10-09
*
* 根據給定的字符串來查找郵件正文中包含此字符串的所有郵件
* @param pattern 郵件正文要包含的字符串
*/
public void setBodyText(String pattern) {
SearchTerm jbterm = new JBodyTerm(pattern);
list.add(jbterm);
}
// note: The dateFormat is <yyyy-MM-dd> eg: [2004-7-10]
public void setReceiveDate(String date) {
int comparison = getComparison();
Date recdate = null;
try {
recdate = getSearchDate(date);
SearchTerm recterm = new ReceivedDateTerm(comparison, recdate);
list.add(recterm);
} catch (Exception ex) {
System.err.println("CoffeeWebMail reportException: " + ex.toString());
ex.printStackTrace();
}
}
public void setSentDate(String date) {
int comparison = getComparison();
Date sentdate = null;
try {
sentdate = getSearchDate(date);
SearchTerm recterm = new SentDateTerm(comparison, sentdate);
list.add(recterm);
} catch (Exception ex) {
System.err.println("CoffeeWebMail reportException: " + ex.toString());
ex.printStackTrace();
}
}
/**
* 返回所有符合搜索條件的郵件數組
* return all messages that according the searchterm.
* param--srchmode["and" or "or"]
* @param folder Folder 要搜索的郵件夾
* @param srchmode String 搜索模式，搜索模式為其中之一: MessageQuerier.OR or MessageQuerier.AND
* @return Message[] 符合條件的所有消息數組
*/
public Message[] getSrchMessages(Folder folder, String srchmode) {
SearchTerm sterm = null;
Message[] msgs = null;
//if(list.size() == 0) return null;
SearchTerm[] sterms = new SearchTerm[list.size()];
try {
for (int i = 0; i < sterms.length; i++) {
sterms[i] = (SearchTerm) list.get(i);
}
if (sterms.length > 1) {
if (srchmode.equals("and")) {
//debug info
//System.out.println("and term :"+sterms.length);
sterm = new AndTerm(sterms);
} else if (srchmode.equals("or")) {
sterm = new OrTerm(sterms);
}
} else if (sterms.length == 1) {
//debug info
//System.out.println("sterm's length is 1");
sterm = sterms[0];
}
if (sterm == null) msgs = folder.getMessages();
else
msgs = folder.search(sterm);
} catch (Exception ex) {
System.err.println("CoffeeWebMail reportException: " + ex.toString());
ex.printStackTrace();
}
return msgs;
}
//輔助方法
private Date getSearchDate(String date) {
String[] ymd = date.split("-");
int year, month, day;
Date srchdate = null;
try {
year = Integer.parseInt(ymd[0]);
month = Integer.parseInt(ymd[1]) - 1;
day = Integer.parseInt(ymd[2]);
Calendar cal = Calendar.getInstance();
cal.set(year, month, day);
srchdate = cal.getTime();
} catch (Exception ex) {
System.err.println("CoffeeWebMail reportException: " + ex.toString());
ex.printStackTrace();
}
return srchdate;
}
//一個測試代碼
public static void main(String args[])
throws Exception {
String host = "pop.mail.yahoo.com.cn"; //pop.mail.yahoo.com.cn
String username = "wwp_1124"; //wwp_1124
String password = "3061643"; // passwd
Properties props = new Properties();
Session session = Session.getDefaultInstance(props, null);
Store store = session.getStore("pop3");
store.connect(host, username, password);
Folder folder = store.getFolder("INBOX");
folder.open(Folder.READ_ONLY);
MessageQuerier mq = new MessageQuerier();
//mq.setAttach(true);
//mq.setAttachFlag(true);
mq.setFrom("lcd@gxsw.com");
//mq.setSubject("你好");
//mq.setBodyText("測試");
mq.setPersonal("林昌東");
Message[] msgs = mq.getSrchMessages(folder, MessageQuerier.OR);
System.out.println(msgs.length);
for (int i = 0; i < msgs.length; i++) {
System.out.println("=====================================>");
MimeMessageParser mmp = MimeMessageParser.getMessageParser( (MimeMessage) msgs[i]);
System.out.println("sentDate: " + mmp.getSentDate());
System.out.println("Subject: " + mmp.getSubject());
System.out.println("from: " + mmp.getAddress(AddressType.FROM));
System.out.println("personal: " + mmp.getPersonal(AddressType.FROM));
//System.out.println("attachFlag: " + mmp.isContainAttach(msgs[i]));
}
}
}
總結：
通過看上面這段代碼，相信大家已經對怎樣使用JavaMail API 來進行郵件查找已經
有了一個大概的了解了吧！在上面的代碼中主要是使用了自己定義的SearchTerm來進行對
郵件的查找，你可以擴展javax.mail.search包中的SearchTerm來編寫屬于你自己的Term
歡迎大家提出寶貴意見，我的msn是: coffeecat_1124@hotmail.com
還有就是我的代碼中引用了MimeMessageParser這個類，這個類的主要作用是用來做郵件
解析的。在下一篇文章中，我會把MimeMessageParser這個類和其他用到的一些自定義
的類上傳上去，希望大家可以順利的測試程序代碼，上面的文章只是給出一個思路讓大
家來參考，希望是來學習思路，而不是直接套用別人的代碼。