By Tanuj Khare
This publication is a step by step instructional for an individual eager to study Apache Tomcat 7 from scratch. there are many illustrations and examples to strengthen you from a amateur to a professional with minimum pressure. when you are a J2EE administrator, migration administrator, technical architect, or a venture supervisor for an internet website hosting area, and have an interest in Apache Tomcat 7, then this ebook is for you. while you're somebody answerable for install, configuration, and administration of Tomcat 7, then too, this ebook should be of aid to you.
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Additional resources for Apache Tomcat 7 Essentials
43 ] Configuration and Deployment JDBC Java Database Connectivity (JDBC) is a Java-based data access technology is an API through which the client accesses the server database. It is oriented towards a relational database and provides a way to query and update the database. JNDI Java Naming and Directory Interface (JNDI) services are an API for the Java platform, which provides naming and directory functionalities to applications written using the Java programming language. DataSource It is a Java object used to access relational databases through the JDBC API.
12/bin/ 2. In the bin directory, we will find the entire executable for Tomcat. To start the services, we have to use the following command. Once you execute the startup command, it will display the parameters which are essential for booting Tomcat. Some of them are CATALINA_BASE, CATALINA_HOME, JRE_ HOME, and so on. sh. Let's execute the script to know the output. jar [ 35 ] Installation of Tomcat 7 Verification of Tomcat status Once we have executed the startup scripts, the next step is the verification of the Tomcat services, to check whether services are coming up fine or not.
Issue: This service is already running on the server. Fix: Check for any Java process running in the system using the following command in Linux: Ps –ef |grep tomcat This command will show all Tomcat processes. If any process is running on an OS, kill it and run the startup scripts again. In Windows, go to the Task Manager and check if any Java process is running for Tomcat. If any process is running, then kill the process and restart the Tomcat services. Summary In this chapter, we have covered the Apache Tomcat history and new features introduced in Tomcat 7.