我第一次使用Quartz调度程序，而我正在使用Crown Trigger来完成我的工作。我的代码如下：
SchedulerJob.java
package com.controller;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
public class SchedulerJob implements Job {
public void execute(JobExecutionContext context)
throws JobExecutionException {
System.out.println("welcome to scheduler");
Statement stmt = null;
String url = "jdbc:mysql://localhost:3306/marketing_database";
Connection con = null;
ResultSet rs = null;
// get current date time with Calendar()
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
Calendar cal = Calendar.getInstance();
String systemDate = dateFormat.format(cal.getTime());
//mail Server properties
//
// String host = "smtp.gmail.com";
// Properties props = new Properties();
// props.put("mail.smtp.auth", "true");
// props.put("mail.smtp.starttls.enable", "true");
// props.put("mail.smtp.host", host);
// props.put("mail.smtp.port", "587");
//
// String from = "southstartechnology.com";// change accordingly
// final String username = "info@southstartechnology.com";// change accordingly
//
// final String password1 = "South@123";// change accordingly
// Session session1 = Session.getInstance(props,
// new javax.mail.Authenticator() {
// protected PasswordAuthentication getPasswordAuthentication() {
// return new PasswordAuthentication(username, password1);
// }
// });
//
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
con = DriverManager.getConnection(url, "root", "root");
stmt = con.createStatement();
String sql = "select * from marketing_database.purchase where PaymentDate='"+systemDate+"';";
rs = stmt.executeQuery(sql);
ArrayList<String> list = new ArrayList<String>();
String emailIdStr, item, grandTotal,vendorAddress;
Date purchaseDate, paymentDate;
while (rs.next()) {
emailIdStr = rs.getString("email");
item = rs.getString("Item");
purchaseDate = rs.getDate("Date");
grandTotal = rs.getString("GrandTotal");
vendorAddress = rs.getString("VendorAddress");
paymentDate = rs.getDate("PaymentDate");
System.out.println("Email is===" + emailIdStr);
System.out.println("purchaseDate is===" + purchaseDate);
System.out.println("grandTotal is===" + grandTotal);
System.out.println("vendorAddress is===" + vendorAddress);
System.out.println("paymentDate is===" + paymentDate);
String mailTo = emailIdStr;// change accordingly
// Sender's email ID needs to be mentioned
// Assuming you are sending email through relay.jangosmtp.net
// Get the Session object.
// try {
// // Create a default MimeMessage object.
// Message message = new MimeMessage(session1);
//
// // Set From: header field of the header.
// message.setFrom(new InternetAddress(from));
//
// // Set To: header field of the header.
// message.setRecipients(Message.RecipientType.TO,
// InternetAddress.parse(to));
//
// // Set Subject: header field
// message.setSubject("Purchase Due payment");
//
// // Now set the actual message
// // message.setText("Hello, this is your Password \n dfggghlkgh: "
// // + password);
// message.setText("Dear " + emailIdStr
// + " You are welcome in messaging service!!! ");
// // Send message
//
// Transport.send(message);
// System.out.println("Message Sent successfully!!");
//
// } catch (MessagingException e) {
// throw new RuntimeException(e);
// }
//
// }
// }
//
String host = "smtp.gmail.com";
String port = "587";
String mailFrom = "info@southstartechnology.com";
String password = "South@123";
// outgoing message information
//String mailTo = +emailIdStr;
String subject = "Due Payment";
// message contains HTML markups
String message = "<i>Greetings!</i><br>";
message += "<b>Wish you a nice day!</b><br>";
message += "<font color=red>Arvind</font>";
String message1 ="<b>Hi sir! Greetings for the day,</b><br>";
message1+="<i>Following payment are due as on today,please arrange for the payment.<i><br>";
message1+= "<html><head><style>table, th, td { border: 1px solid black;border-collapse: collapse}th, td { padding: 5px;}</style></head><body>";
message1+="<table ><tr><th>Item</th><th>Purchase Date</th><th>TotalAmount</th><th>VendorAddress</th><th>Payment Date</th></tr>";
message1+="<tr><td>"+item;
message1+="</td>";
message1+="<td>"+purchaseDate;
message1+="</td>";
message1+="<td>"+grandTotal;
message1+="</td>";
message1+="<td>"+vendorAddress;
message1+="</td>";
message1+="<td>"+paymentDate;
message1+="</td></tr>";
// message1+=" <tr><td></td><td>10-12-2015</td><td>50000</td><td>Electronic City</td><td>03-09-2015</td></tr>";
message1+="</table></body></html>";
SchedulerJob mailer = new SchedulerJob();
try {
mailer.sendHtmlEmail(host, port, mailFrom, password, mailTo,
subject, message1);
System.out.println("Email sent.");
} catch (Exception ex) {
System.out.println("Failed to sent email.");
ex.printStackTrace();
}
}
}
catch (Exception ex) {
ex.printStackTrace();
}
}
public void sendHtmlEmail(String host, String port, final String userName,
final String password, String toAddress, String subject,
String message) throws AddressException, MessagingException {
// sets SMTP server properties
Properties properties = new Properties();
properties.put("mail.smtp.host", host);
properties.put("mail.smtp.port", port);
properties.put("mail.smtp.auth", "true");
properties.put("mail.smtp.starttls.enable", "true");
// creates a new session with an authenticator
Authenticator auth = new Authenticator() {
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(userName, password);
}
};
Session session = Session.getInstance(properties, auth);
// creates a new e-mail message
Message msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(userName));
InternetAddress[] toAddresses = { new InternetAddress(toAddress) };
msg.setRecipients(Message.RecipientType.TO, toAddresses);
msg.setSubject(subject);
msg.setSentDate(new Date());
// set plain text message
msg.setContent(message, "text/html");
// sends the e-mail
Transport.send(msg);
}
}
QuartzSchedulerListener.java
package com.controller;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import org.quartz.CronScheduleBuilder;
import org.quartz.JobBuilder;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.Trigger;
import org.quartz.TriggerBuilder;
import org.quartz.impl.StdSchedulerFactory;
import com.controller.SchedulerJob;
public class QuartzSchedulerListener implements ServletContextListener {
public void contextDestroyed(ServletContextEvent arg0) {
//
}
public void contextInitialized(ServletContextEvent arg0) {
JobDetail job = JobBuilder.newJob(SchedulerJob.class)
.withIdentity("anyJobName", "group1").build();
try {
Trigger trigger = TriggerBuilder
.newTrigger()
.withIdentity("anyTriggerName", "group1")
.withSchedule(
CronScheduleBuilder.cronSchedule("0 0 12 * * ?"))
.build();
Scheduler scheduler = new StdSchedulerFactory().getScheduler();
scheduler.start();
scheduler.scheduleJob(job, trigger);
} catch (SchedulerException e) {
e.printStackTrace();
}
}
}
我正在尝试安排触发器以24小时间隔执行作业但无法执行此操作。所以请解决我的问题。
答案 0 :(得分：1)
对于Job Type Cron，它可以完美，
Trigger trigger = TriggerBuilder
.newTrigger()
.withIdentity("anyTriggerName", "group1")
.withSchedule(
CronScheduleBuilder.cronSchedule("0 0 23 * * ?"))
.build();
答案 1 :(得分：0)
像这样：
Trigger trigger = newTrigger()
.withIdentity(triggerKey("myTrigger", "myTriggerGroup"))
.withSchedule(SimpleScheduleBuilder.simpleSchedule()
.withIntervalInHours(24)
.repeatForever())
.startNow()
.build();
请参阅：http://quartz-scheduler.org/api/2.2.0/org/quartz/TriggerBuilder.html