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Spring Groovy Tutorial

Spring Framework is a Java application framework that provides many useful services for building applications. It has supported Apache Groovy fully since version 4. In this tutorial, we will build a Spring boot application in Groovy.                   Table Of Contents 1. Introduction 2. Technologies Used 3. Spring-boot Application 3.1. Groovy Dependency 3.2 ...

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MongoDB Regular Expressions Example

Hello readers, a regular expression or regex is a sequence of characters that explains a specific search pattern. In this tutorial, we will learn how to use the regular expressions in the Mongo database. 1. Introduction If you have installed the MongoDB application (version 3.6) on Windows or Ubuntu operating system and you wish to learn the regular expressions then ...

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MongoDB toArray() Example

Hello readers, in this tutorial, we will learn how to implement the toArray() method available in the Mongo database. 1. Introduction If you have installed the MongoDB application (version 3.6) on Windows or Ubuntu operating system and you wish to learn the toArray() method then follow the below steps. It is very simple, but before moving further let’s take a ...

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MongoDB size() Example

Hello readers, in this tutorial, we will learn how to implement the size() method available in the Mongo database. 1. Introduction If you have installed the MongoDB application (version 3.6) on Windows or Ubuntu operating system and you wish to learn the size() method then follow the below steps. It is very simple, but before moving further let’s take a ...

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JBoss Drools Best Practices Tutorial

This example illustrates JBoss Drools and its best practices. We will also cover terminology used with Drools with little explanation. Before we proceed with this article, lets assume that readers have basic knowledge about how a Java n-tier application works. In brief, any Java enterprise level application can be split into three parts: UI – User Interface (Frontend/presentation layer) Service ...

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MongoDB sort() Example

Hello readers, in this tutorial, we will learn how to sort the documents using the sort() method available in the Mongo database. 1. Introduction If you have installed the MongoDB application (version 3.6) on Windows or Ubuntu operating system and you wish to learn the sort() method then follow the below steps. It is very simple, but before moving further ...

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MongoDB map() Example

Hello readers, in this tutorial, we will see the map() method available in the Mongo database. 1. Introduction If you have installed the MongoDB application (version 3.6) on Windows or Ubuntu operating system and you wish to learn the map() method then follow the below steps. It is very simple, but before moving further let’s take a look at the ...

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Docker Tutorial for Java Developers

1. Introduction So in this article, we will explain what is Docker and why do we use Docker. Going further we will learn some concepts of Docker and later, we will see how to create Dockerfile. We will then create Docker Image from Dockerfile. And finally, we will see how to run Docker images in the container using java code. ...

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Apache Tomcat Vulnerabilities Example

Apache Tomcat (Tomcat) is a widely used Java application server with over one million downloads per month. Most vulnerabilities of Tomcat are discovered by the Tomcat community or security researchers, and are quickly patched. Tomcat security is a matter of balancing convenience and restrictions. In this tutorial, we will provide an overview of the security vulnerabilities in Tomcat.     ...

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MongoDB showRecordId() Example

Hello readers, in this tutorial, we will see the showRecordId() method available in the Mongo database. 1. Introduction If you have installed the MongoDB application (version 3.6) on Windows or Ubuntu operating system and you wish to learn the showRecordId() method then follow the below steps. It is very simple, but before moving further let’s take a look at the ...

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