Professional Java for Web Applications

Chapter 11Using Logging to Monitor Your Application

IN THIS CHAPTER

• All about logging
• What are the different logging levels?
• What logging facility is right for you?
• How to integrate logging into your application
• Include logging in the Customer Support application

WROX.COM CODE DOWNLOADS FOR THIS CHAPTER

You can find the wrox.com code downloads for this chapter at http://www.wrox.com/go/projavaforwebapps on the Download Code tab. The code for this chapter is divided into the following major examples:

• Logging-Integration Project
• Customer-Support-v9 Project

NEW MAVEN DEPENDENCIES FOR THIS CHAPTER

In addition to the Maven dependencies introduced in previous chapters, you also need the following Maven dependencies:

        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-api</artifactId>
            <version>2.0</version>
            <scope>compile</scope>
        </dependency>
 
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>2.0</version>
            <scope>runtime</scope>
        </dependency>
 
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-jcl</artifactId>
            <version>2.0</version>
            <scope>runtime</scope>
        </dependency>
 
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-slf4j-impl</artifactId>
            <version>2.0</version>
            <scope>runtime</scope>
        </dependency>
 
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-taglib</artifactId>
            <version>2.0</version>
            <scope>runtime</scope>
        </dependency>