Document Information


Part I Introduction

1.  Overview

2.  Using the Tutorial Examples

Part II The Web Tier

3.  Getting Started with Web Applications

4.  JavaServer Faces Technology

5.  Introduction to Facelets

6.  Expression Language

7.  Using JavaServer Faces Technology in Web Pages

8.  Using Converters, Listeners, and Validators

9.  Developing with JavaServer Faces Technology

10.  JavaServer Faces Technology: Advanced Concepts

11.  Using Ajax with JavaServer Faces Technology

12.  Composite Components: Advanced Topics and Example

13.  Creating Custom UI Components and Other Custom Objects

14.  Configuring JavaServer Faces Applications

15.  Java Servlet Technology

16.  Uploading Files with Java Servlet Technology

17.  Internationalizing and Localizing Web Applications

Part III Web Services

18.  Introduction to Web Services

19.  Building Web Services with JAX-WS

20.  Building RESTful Web Services with JAX-RS

21.  JAX-RS: Advanced Topics and Example

Part IV Enterprise Beans

22.  Enterprise Beans

23.  Getting Started with Enterprise Beans

24.  Running the Enterprise Bean Examples

25.  A Message-Driven Bean Example

26.  Using the Embedded Enterprise Bean Container

27.  Using Asynchronous Method Invocation in Session Beans

Part V Contexts and Dependency Injection for the Java EE Platform

28.  Introduction to Contexts and Dependency Injection for the Java EE Platform

29.  Running the Basic Contexts and Dependency Injection Examples

30.  Contexts and Dependency Injection for the Java EE Platform: Advanced Topics

31.  Running the Advanced Contexts and Dependency Injection Examples

Part VI Persistence

32.  Introduction to the Java Persistence API

33.  Running the Persistence Examples

34.  The Java Persistence Query Language

35.  Using the Criteria API to Create Queries

36.  Creating and Using String-Based Criteria Queries

37.  Controlling Concurrent Access to Entity Data with Locking

38.  Using a Second-Level Cache with Java Persistence API Applications

Part VII Security

39.  Introduction to Security in the Java EE Platform

40.  Getting Started Securing Web Applications

Securing Web Applications

Specifying Security Constraints

Specifying a Web Resource Collection

Specifying an Authorization Constraint

Specifying a Secure Connection

Specifying Security Constraints for Resources

Specifying Authentication Mechanisms

HTTP Basic Authentication

Form-Based Authentication

Digest Authentication

Specifying an Authentication Mechanism in the Deployment Descriptor

Declaring Security Roles

Using Programmatic Security with Web Applications

Authenticating Users Programmatically

Checking Caller Identity Programmatically

Example Code for Programmatic Security

Declaring and Linking Role References

Examples: Securing Web Applications

To Set Up Your System for Running the Security Examples

The hello2_basicauth Example: Basic Authentication with a Servlet

Specifying Security for Basic Authentication Using Annotations

To Build, Package, and Deploy the hello2_basicauth Example Using NetBeans IDE

To Build, Package, and Deploy the hello2_basicauth Example Using Ant

To Run the hello2_basicauth Example

The hello1_formauth Example: Form-Based Authentication with a JavaServer Faces Application

Creating the Login Form and the Error Page

Specifying Security for the Form-Based Authentication Example

To Build, Package, and Deploy the hello1_formauth Example Using NetBeans IDE

To Build, Package, and Deploy the hello1_formauth Example Using Ant

To Run the hello1_formauth Example

41.  Getting Started Securing Enterprise Applications

42.  Java EE Security: Advanced Topics

Part VIII Java EE Supporting Technologies

43.  Introduction to Java EE Supporting Technologies

44.  Transactions

45.  Resources and Resource Adapters

46.  The Resource Adapter Example

47.  Java Message Service Concepts

48.  Java Message Service Examples

49.  Bean Validation: Advanced Topics

50.  Using Java EE Interceptors

Part IX Case Studies

51.  Duke's Bookstore Case Study Example

52.  Duke's Tutoring Case Study Example

53.  Duke's Forest Case Study Example



Overview of Web Application Security

In the Java EE platform, web components provide the dynamic extension capabilities for a web server. Web components can be Java servlets or JavaServer Faces pages. The interaction between a web client and a web application is illustrated in Figure 40-1.

Figure 40-1 Java Web Application Request Handling

Diagram of steps in web application request handling, showing web client, HttpServlet request, web and JavaBeans components, and HttpServlet response

Certain aspects of web application security can be configured when the application is installed, or deployed, to the web container. Annotations and/or deployment descriptors are used to relay information to the deployer about security and other aspects of the application. Specifying this information in annotations or in the deployment descriptor helps the deployer set up the appropriate security policy for the web application. Any values explicitly specified in the deployment descriptor override any values specified in annotations.

Security for Java EE web applications can be implemented in the following ways.

  • Declarative security: Can be implemented using either metadata annotations or an application’s deployment descriptor. See Overview of Java EE Security for more information.

    Declarative security for web applications is described in Securing Web Applications.

  • Programmatic security: Is embedded in an application and can be used to make security decisions when declarative security alone is not sufficient to express the security model of an application. Declarative security alone may not be sufficient when conditional login in a particular work flow, instead of for all cases, is required in the middle of an application. See Overview of Java EE Security for more information.

    Servlet 3.0 provides the authenticate, login, and logout methods of the HttpServletRequest interface. With the addition of the authenticate, login, and logout methods to the Servlet specification, an application deployment descriptor is no longer required for web applications but may still be used to further specify security requirements beyond the basic default values.

    Programmatic security is discussed in Using Programmatic Security with Web Applications

  • Message Security: Works with web services and incorporates security features, such as digital signatures and encryption, into the header of a SOAP message, working in the application layer, ensuring end-to-end security. Message security is not a component of Java EE 6 and is mentioned here for informational purposes only.

Some of the material in this chapter builds on material presented earlier in this tutorial. In particular, this chapter assumes that you are familiar with the information in the following chapters: