Introducing Spring Framework

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Chapter 13 ■ Adding E-mail and Scheduling Tasks } } mailMessage.setSubject(subject); mailMessage.setText(message); mailSender.send(mailMessage); Listing 13-1 shows a MailSender and a SimpleMailMessage class; these helpers will send an e-mail passing the To recipients, the subject, and the message. So easy! Now you need to tell the Spring container what credentials you are going to use in order to send an e-mail. You can use any external e-mail account like Hotmail, Gmail, or Yahoo. This example will use the Gmail settings. See Listing 13-2 for the XML configuration. Listing 13-2. mydocuments-context.xml
Chapter 13 ■ Adding E-mail and Scheduling Tasks Listing 13-2 shows your XML configuration. As you can see, you are using the property placeholder to read the email.properties file. Also, you are creating a mailSender bean that references the org.springframework.mail.javamail.JavaMailSenderImpl class. This class is the Spring’s e-mail helper class and it has several setters like host, port, username, password, and a javaMailProperties. You are setting these property values by putting in placeholders. Listing 13-3 shows the e-mail properties file. Listing 13-3. email.properties email.host=smtp.gmail.com email.port=587 email.username=username email.password=password ■ ■Note If you are using a different e-mail provider such as Hotmail or Yahoo, you can check out their help pages to find servers, ports, and more advance settings so you can configure the properties file and the javaMailProperties setters accordingly. Now let’s see Listing 13-4, the unit test. You are going to add some time measurement to see how long it will take to send an e-mail. Why? This is because the JavaMailSenderImpl has a synchronous call for sending a message to the server, meaning it must wait until the server accepts and responds that the e-mail was successfully sent. Listing 13-4. MyDocumentsTest.java package com.apress.isf.spring.test; import static org.junit.Assert.assertNotNull; import java.util.Date; import org.junit.Ignore; import org.junit.Test; import org.junit.runner.RunWith; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; import com.apress.isf.spring.email.EmailService; @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration("classpath:META-INF/spring/mydocuments-context.xml") public class MyDocumentsTest { private static final Logger log = LoggerFactory.getLogger(MyDocumentsTest.class); @Autowired EmailService email; 185
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THE EXPERT’S VOICE ® IN SPRING
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Contents at a Glance About the Auth
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Introduction This book is an introd
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Part I Spring Framework Basics The
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Chapter 1 ■ Your First Spring App
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Chapter 2 ■ Working with Classes
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Chapter 3 Applying Different Config
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Chapter 3 ■ Applying Different Co
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Spring Stereotypes Chapter 3 ■ Ap
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Chapter 4 ■ Using Beans Scopes pu
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Chapter 4 ■ Using Beans Scopes do
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Chapter 5 ■ Working with Collecti
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Chapter 6 ■ Using Resource Files
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Chapter 7 Testing Your Spring Appli
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Chapter 8 Give Advice to Your Sprin
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Chapter 8 ■ Give Advice to Your S
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Part IV Spring I/O Spring I/O is no
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Chapter 18 ■ Spring and Groovy
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Chapter 19 ■ Spring Boot, Simplif
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Chapter 20 ■ Your First Spring XD
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Appendix A Installing Tools In this
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Appendix A ■ Installing Tools Fig
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Setting Environment Variables Appen
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Appendix A ■ Installing Tools 6.
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Stop MongoDB Server Appendix A ■
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Stop ActiveMQ Appendix A ■ Instal
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Installing RabbitMQ on Windows Appe
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Installing Spring XD on Windows App
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■ index • I I/O operations, 62
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■ index Spring application (cont.
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Introducing Spring Framework A Prim
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To my parents, Rocio Cruz and Felip
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■ Contents ■■Chapter 3: Apply
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■ Contents ■■Chapter 12: Expo
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■ Contents ■■Chapter 20: Your
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About the Author Felipe Gutierrez i
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Acknowledgments I would like to exp
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