Section 8.3 Web Services in Java

Learning Objectives

After you have completed this section, you should be able to

• explain what a web service is.
• publish and consume Java web services in NetBeans.
• describe the elements that comprise web services.

Activities

• Carefully read the learning objectives.
• Watch the presentation for the section;
• Read online Chapter 28, Web Services in Java.
• Review section 22.10 of Chapter 18, Database: SQL, MySQL, LINQ and Java DB.
• Read the document you find at https://docs.oracle.com/javaee/6/tutorial/doc/bnayk.html
• Find answers to the study questions below.
• Do exercises 28.3, 28.4, and 28.5 of Chapter 28.

Study Questions

1. What is a web service?
2. How do you develop and publish a web service in Java?
3. How do you consume a web service?
4. What does SOAP stand for? What does the SOAP protocol do?
5. What is REST?
6. What are RESTful web services?
7. What is JSON? What can it be used for?
8. What are SOAP messages?
9. What is the structure of a SOAP message?
10. What does a SOAP request message do?
11. What does a SOAP response message do?
12. Why are web services so important for business-to-business transactions?
13. What is JAX-WS 2.0? Where is it used? For what purpose(s)?

Review

Do the self-review exercises for Chapter 28.

Summary

Read the online Chapter 28 summary.