Jee Java Tutorials
Introduction We will see here how to configure mod_jk with Apache http and Tomcat servers. The Apache Tomcat connector allows to use the Apache httpd server as a front-end for Apache Tomcat applications. To run Tomcat and Apache together, Apache needs to…
Here we will see how to create Microservices using Spring Boot and Spring Cloud and build using Gradle tool. What are Microservices? Before I tell you about the microservices, I woul like to tell you about monolithic architectural style, which is built…
This tutorial will show you how to integrate in-memory H2 database with Spring Boot 2.1 and build using Gradle tool. We will see here simple JPA example to understand how it works. What is an in-memory database? An in memory database is…
Here I will explain what is the use of Eureka server in Microservices Architecture – why do we need Eureka server? What is Eureka server? The Eureka server is nothing but an implementation of service discovery pattern, where microservices can register themselves…
Here we will see how to upload file using Angular and Spring Boot application. The Angular + Spring Boot file upload example will use the Angular example from and we will see here how to write server side code for Spring Boot…
Spring Boot web starter uses Tomcat as the default embedded servlet container. In this example we will see how to use Jetty instead of Tomcat in Spring Boot application. Generally we need to exclude the Tomcat server and use the Jetty starter…
Here we will see the process of packaging war, jar modules into ear file. EAR, aka, Enterprise Archive, in which all files (.jar and .war) are packaged as JAR file with .ear (enterprise archive) extension and deployed into Application Server. EJB modules…
Here we will see how to encrypt user passwords in maven’s ~/.m2/settings.xml file. The maven’s configuration file, settings.xml , which has all the required configurations such as repository, server etc. Now, for example, when you want to want to access the protected…
Memory management is the process of allocating objects and removing the unused objects so that memory can be allocated for new objects. Heap and Nursery Heap is created when JVM starts up and may increase or decrease in size during application runtime….
The Java Virtual Machine (JVM) defines various run-time data areas that are used during execution of a program. Some of these data areas are created on Java Virtual Machine start-up and are destroyed only when the Java Virtual Machine exits. Other data…