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本文来源Quartz 定时邮件发送备份文件 - 黑壳网 http://www.bhusk.com/articles/2017/07/27/1501146724360.html
之前由于黑壳网的博客数据库，一直没有做定期备份的处理，虽然现在不一定会出问题，但起码数据备份意识上还是要有的。
之前有考虑过用七牛云等第三方服务，但是最后由于种种原因，暂时不考虑用第三方服务。 所以自己手写了一个定时备份程序，简单的思路↓
到达指定时间，将数据库备份文件发送利用邮箱，发送至指定邮箱，达到定期备份的目的。
特别提示:如果文件对安全性要求很高的话，不推荐
程序采用 Java 语言和maven 强大的依赖体系+流行的 spring，为什么要用 Java，只是写着好玩不要太较真了。
pom.xml 文件 Quartz 的包是整个项目不可缺少的
<properties>
<!-- Spring 的版本 -->
<springframework.version>4.0.6.RELEASE</springframework.version>
<!-- Quartz 的版本 -->
<quartz.version>2.2.1</quartz.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.mail/mail -->
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>${quartz.version}</version>
</dependency>
<!-- spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${springframework.version}</version>
</dependency>
</dependencies>
MyJob.java 继承 QuartzJobBean 然后 Override 有钻研精神的可以一点一点扒代码看 QuartzJobBean。
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.scheduling.quartz.QuartzJobBean;
import java.util.Date;
/**
* kzyuan Job 参考
* @description black husk
* @description http://www.bhusk.com
*/
public class MyJob extends QuartzJobBean {
private static Logger logger = LoggerFactory.getLogger(DatabaseBackupJob.class);
@Override
protected void executeInternal(JobExecutionContext jobExecutionContext) throws JobExecutionException {
System.out.println("执行时间:"+new Date());
}
}
application.xml 可以理解为 quartz 配置文件 注释很齐全
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
<!-- 定义任务 bean -->
<bean name="myJobDetail" class="org.springframework.scheduling.quartz.JobDetailFactoryBean">
<!-- 指定具体的 job 类 -->
<property name="jobClass" value="com.bhusk.quartz.Job.MyJob"/>
<!-- 指定 job 的名称 -->
<property name="name" value="myJob"/>
<!-- 指定 job 的分组 -->
<property name="group" value="jobs"/>
<!-- 必须设置为 true，如果为 false，当没有活动的触发器与之关联时会在调度器中删除该任务 -->
<property name="durability" value="true"/>
<!-- 指定 spring 容器的 key，如果不设定在 job 中的 jobmap 中是获取不到 spring 容器的 -->
<property name="applicationContextJobDataKey" value="applicationContext"/>
</bean>
<!-- 定义触发器 -->
<bean id="cronTrigger" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
<property name="jobDetail" ref="myJobDetail"/>
<!--执行时间 -->
<property name="cronExpression" value="0 0 3 * * ?"/>
</bean>
<!-- 定义触发器 -->
<!--演示：一个 job 可以有多个 trigger ； -->
<!--<bean id="cronTrigger2" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">-->
<!--<property name="jobDetail" ref="myJobDetail2" />-->
<!--每一分钟执行一次-->
<!-- <property name="cronExpression" value="0 0 3 * * ?"/> -->
<!--</bean>-->
<!-- 定义调度器 -->
<bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="triggers">
<list>
<ref bean="cronTrigger"/>
<!-- <ref bean="cronTrigger2"/> -->
</list>
</property>
</bean>
</beans>
JavaMail 发送邮件工具类 java 实现邮件的发送， 抄送及多附件 这个工具类来源网络，具体精准位置也不清楚了
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;
import java.io.UnsupportedEncodingException;
import java.util.Properties;
/**
* 邮件管理器
* java 实现邮件的发送， 抄送及多附件
*/
public class EmailManager {
public static String username = "keshu@bhusk.com"; // 服务邮箱(from 邮箱)
public static String password = ""; // 邮箱密码
public static String senderNick = "黑壳网的壳叔"; // 发件人昵称
private Properties props; // 系统属性
private Session session; // 邮件会话对象
private MimeMessage mimeMsg; // MIME 邮件对象
private Multipart mp; // Multipart 对象,邮件内容,标题,附件等内容均添加到其中后再生成 MimeMessage 对象
private static EmailManager instance = null;
public EmailManager() {
props = System.getProperties();
props.put("mail.smtp.auth", "true");
props.put("mail.transport.protocol", "smtp");
props.put("mail.smtp.host", "smtp.163.com");
props.put("mail.smtp.port", "25");
props.put("username", username);
props.put("password", password);
// 建立会话
session = Session.getDefaultInstance(props);
session.setDebug(false);
}
public static EmailManager getInstance() {
if (instance == null) {
instance = new EmailManager();
}
return instance;
}
/**
* 发送邮件
*
* @param from 发件人
* @param to 收件人
* @param copyto 抄送
* @param subject 主题
* @param content 内容
* @param fileList 附件列表
* @return
*/
public boolean sendMail(String from, String[] to, String[] copyto, String subject, String content, String[] fileList) {
boolean success = true;
try {
mimeMsg = new MimeMessage(session);
mp = new MimeMultipart();
// 自定义发件人昵称
String nick = "";
try {
nick = javax.mail.internet.MimeUtility.encodeText(senderNick);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
// 设置发件人
// mimeMsg.setFrom(new InternetAddress(from));
mimeMsg.setFrom(new InternetAddress(from, nick));
// 设置收件人
if (to != null && to.length > 0) {
String toListStr = getMailList(to);
mimeMsg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(toListStr));
}
// 设置抄送人
if (copyto != null && copyto.length > 0) {
String ccListStr = getMailList(copyto);
mimeMsg.setRecipients(Message.RecipientType.CC, InternetAddress.parse(ccListStr));
}
// 设置主题
mimeMsg.setSubject(subject);
// 设置正文
BodyPart bp = new MimeBodyPart();
bp.setContent(content, "text/html;charset=utf-8");
mp.addBodyPart(bp);
// 设置附件
if (fileList != null && fileList.length > 0) {
for (int i = 0; i < fileList.length; i++) {
bp = new MimeBodyPart();
FileDataSource fds = new FileDataSource(fileList[i]);
bp.setDataHandler(new DataHandler(fds));
bp.setFileName(MimeUtility.encodeText(fds.getName(), "UTF-8", "B"));
mp.addBodyPart(bp);
}
}
mimeMsg.setContent(mp);
mimeMsg.saveChanges();
// 发送邮件
if (props.get("mail.smtp.auth").equals("true")) {
Transport transport = session.getTransport("smtp");
transport.connect((String) props.get("mail.smtp.host"), (String) props.get("username"), (String) props.get("password"));
// transport.sendMessage(mimeMsg, mimeMsg.getRecipients(Message.RecipientType.TO));
// transport.sendMessage(mimeMsg, mimeMsg.getRecipients(Message.RecipientType.CC));
transport.sendMessage(mimeMsg, mimeMsg.getAllRecipients());
transport.close();
} else {
Transport.send(mimeMsg);
}
System.out.println("邮件发送成功");
} catch (MessagingException e) {
e.printStackTrace();
success = false;
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
success = false;
}
return success;
}
/**
* 发送邮件
*
* @param from 发件人
* @param to 收件人, 多个 Email 以英文逗号分隔
* @param cc 抄送, 多个 Email 以英文逗号分隔
* @param subject 主题
* @param content 内容
* @param fileList 附件列表
* @return
*/
public boolean sendMail(String from, String to, String cc, String subject, String content, String[] fileList) {
boolean success = true;
try {
mimeMsg = new MimeMessage(session);
mp = new MimeMultipart();
// 自定义发件人昵称
String nick = "";
try {
nick = javax.mail.internet.MimeUtility.encodeText(senderNick);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
// 设置发件人
// mimeMsg.setFrom(new InternetAddress(from));
mimeMsg.setFrom(new InternetAddress(from, nick));
// 设置收件人
if (to != null && to.length() > 0) {
mimeMsg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to));
}
// 设置抄送人
if (cc != null && cc.length() > 0) {
mimeMsg.setRecipients(Message.RecipientType.CC, InternetAddress.parse(cc));
}
// 设置主题
mimeMsg.setSubject(subject);
// 设置正文
BodyPart bp = new MimeBodyPart();
bp.setContent(content, "text/html;charset=utf-8");
mp.addBodyPart(bp);
// 设置附件
if (fileList != null && fileList.length > 0) {
for (int i = 0; i < fileList.length; i++) {
bp = new MimeBodyPart();
FileDataSource fds = new FileDataSource(fileList[i]);
bp.setDataHandler(new DataHandler(fds));
bp.setFileName(MimeUtility.encodeText(fds.getName(), "UTF-8", "B"));
mp.addBodyPart(bp);
}
}
mimeMsg.setContent(mp);
mimeMsg.saveChanges();
// 发送邮件
if (props.get("mail.smtp.auth").equals("true")) {
Transport transport = session.getTransport("smtp");
transport.connect((String) props.get("mail.smtp.host"), (String) props.get("username"), (String) props.get("password"));
transport.sendMessage(mimeMsg, mimeMsg.getAllRecipients());
transport.close();
} else {
Transport.send(mimeMsg);
}
System.out.println("邮件发送成功");
} catch (MessagingException e) {
e.printStackTrace();
success = false;
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
success = false;
}
return success;
}
public String getMailList(String[] mailArray) {
StringBuffer toList = new StringBuffer();
int length = mailArray.length;
if (mailArray != null && length < 2) {
toList.append(mailArray[0]);
} else {
for (int i = 0; i < length; i++) {
toList.append(mailArray[i]);
if (i != (length - 1)) {
toList.append(",");
}
}
}
return toList.toString();
}
public static void main(String[] args) {
String from = username;
String[] to = {"keshu@bhusk.com", "1520812121@qq.com"};
String[] copyto = {"lu12121@qq.com"};
String subject = "黑壳网数据库备份";
String content = "没有数据就没有一切，数据库备份就是一种防范灾难于未然的强力手段，没有了数据，应用再花哨也是镜中花水中月。";
String[] fileList = new String[2];
fileList[0] = "~/solo_h2/db.mv.db";
fileList[1] = "~/solo_h2/db.trace.db";
EmailManager.getInstance().sendMail(from, to, copyto, subject, content, fileList);
}
}
参考项目 GitHub:https://github.com/ykz200/Quartz_DatabaseBackup
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