JavaMail 之搜索邮件，flume和kafka面试_new sentdateterm(6,new date())-优快云博客

本文链接：https://blog.youkuaiyun.com/m0_64867092/article/details/122154105

本文介绍了如何使用JavaMail API进行邮件搜索，包括根据发件人、主题、大小和日期范围等条件。同时，文章也提到了面试中可能遇到的相关知识点。

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SearchTerm notTerm = new NotTerm(new FromStringTerm(“智联招聘”));
Message[] messages = folder.search(notTerm);

4、搜索周一到今天收到的的所有邮件

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Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.DAY_OF_WEEK, calendar.get(Calendar.DAY_OF_WEEK - (Calendar.DAY_OF_WEEK - 1)) - 1);
Date mondayDate = calendar.getTime();
SearchTerm comparisonTermGe = new SentDateTerm(ComparisonTerm.GE, mondayDate);
SearchTerm comparisonTermLe = new SentDateTerm(ComparisonTerm.LE, new Date());
SearchTerm comparisonAndTerm = new AndTerm(comparisonTermGe, comparisonTermLe);
Message[] messages = folder.search(comparisonAndTerm);

5、搜索大于或等于100KB的所有邮件

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int mailSize = 1024 * 100;
SearchTerm intComparisonTerm = new SizeTerm(IntegerComparisonTerm.GE, mailSize);
Message[] messages = folder.search(intComparisonTerm);

ComparisonTerm类常用于日期和数字比较中，它使用六个常量EQ（＝）、GE（>=）、GT（>）、LE（<=）、LT（<）、NE（!=）来表示六种不同的比较操作。

完整代码：

[java] view plain copy

package org.yangxin.study.jm;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Calendar;
import java.util.Date;
import java.util.Properties;
import javax.mail.Flags.Flag;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.URLName;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeUtility;
import javax.mail.search.AndTerm;
import javax.mail.search.BodyTerm;
import javax.mail.search.ComparisonTerm;
import javax.mail.search.FromStringTerm;
import javax.mail.search.IntegerComparisonTerm;
import javax.mail.search.NotTerm;
import javax.mail.search.OrTerm;
import javax.mail.search.SearchTerm;
import javax.mail.search.SentDateTerm;
import javax.mail.search.SizeTerm;
import javax.mail.search.SubjectTerm;
/**
* 搜索邮件
*/
public class SearchMailTest {
public static void main(String[] args) throws Exception {
Properties props = new Properties();
props.setProperty(“mail.pop3.auth”, “true”);
Session session = Session.getInstance(props);
URLName url = new URLName(“pop3”, “pop3.163.com”, 110, null, "xyang

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81@163.com", “yX546900873”);

Store store = session.getStore(url);
store.connect();
// 得到收件箱
Folder folder = store.getFolder(“INBOX”);
// 以读写模式打开收件箱
folder.open(Folder.READ_WRITE);
Message[] messages = search(folder);
System.out.println(“收件箱中共有:” + folder.getMessageCount() + “封邮件，搜索到” + messages.length + “封符合条件的邮件!”);
// 解析邮件搜索到的邮件
POP3ReceiveMailTest.parseMessage(messages);
// 根据用户输入的条件搜索所有邮件,并提示用户是否删除
//searchDemo(folder);
folder.close(true);
store.close();
}
public static Message[] search(Folder folder) throws Exception {
// 搜索主题包含美食的邮件
String subject = “java培训”;
SearchTerm subjectTerm = new SubjectTerm(subject);
// 搜索发件人包含支付宝的邮件
SearchTerm fromTerm = new FromStringTerm(“支付宝”);
// 搜索邮件内容包含"招聘"的邮件
SearchTerm bodyTerm = new BodyTerm(“招聘”);
// 搜索发件人不包含“智联招聘”的邮件
SearchTerm notTerm = new NotTerm(new FromStringTerm(“智联招聘”));
// 搜索发件人为“智联招聘”，而且内容包含“Java工程师“的邮件
SearchTerm andTerm = new AndTerm(
new FromStringTerm(“智联招聘”),
new BodyTerm(“java工程师”));
// 搜索发件人为”智联招聘“或主题包含”最新职位信息“的邮件
SearchTerm orTerm = new OrTerm(
new FromStringTerm(“智联招聘”),
new SubjectTerm(“最新职位信息”));
// 搜索周一到今天收到的的所有邮件
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.DAY_OF_WEEK, calendar.get(Calendar.DAY_OF_WEEK - (Calendar.DAY_OF_WEEK - 1)) - 1);
Date mondayDate = calendar.getTime();
SearchTerm comparisonTermGe = new SentDateTerm(ComparisonTerm.GE, mondayDate);
SearchTerm comparisonTermLe = new SentDateTerm(ComparisonTerm.LE, new Date());
SearchTerm comparisonAndTerm = new AndTerm(comparisonTermGe, comparisonTermLe);
// 搜索大于或等100KB的所有邮件
int mailSize = 1024 * 100;
SearchTerm intComparisonTerm = new SizeTerm(IntegerComparisonTerm.GE, mailSize);
return folder.search(intComparisonTerm);
}
}