Spring Scheduling Cron Expression
javatechonline Blog
by devs5003
2w ago
When we have a requirement where we need to run a task/job repeatedly after a particular time interval, we achieve this functionality by implementing Scheduling. For Java developers, Spring Framework makes it simple by offering Spring Scheduler. Moreover, Cron Expressions are the most widely used approach to achieve scheduling. Cron Expressions are very popular in Unix/Linux OS for scheduling. Spring framework also incorporates the same concept internally. Spring Framework offers us an API where we can utilize Cron expression to get the task scheduled. This article about ‘Spring Scheduling Cro ..read more
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What is Spring Bean
javatechonline Blog
by devs5003
2w ago
Every Java Developer come across the terms Java Bean, Bean Class & Spring Bean. Most of the times people think that all are the same and used interchangeably. Even sometimes people consider them as a simple POJO class. In fact, these all have some logical differences. There are some set of standards & guidelines provided by Programmers that make them different from each other. In this article ‘What is Spring Bean?’, we will start with the fundamentals which are also essential to know, then we will discuss the Spring Bean with examples. Please note that if you define a class that doesn ..read more
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New Features In Spring Framework 6
javatechonline Blog
by devs5003
2w ago
Spring Framework 6, released on November 2022, is the major version change and containing many upgraded features and changes into the Spring development environment. On the other hand, Spring Boot 3 also released on November 2022, is based on Spring Framework 6, also changes a lot of things. We need to know about the changes in new versions in order to make smooth development of an application in the future. In this article, we will discuss about ‘New Features in Spring Framework 6’. Spring Boot 3.0 is also the first Spring Boot GA release to support Spring Framework 6.0. As a developer, we ne ..read more
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How To Migrate Spring Boot 2 To Spring Boot 3
javatechonline Blog
by devs5003
1M ago
After going through the major highlights of ‘New Features in Spring Boot 3.0, it’s time to check the process of ‘How To Migrate Spring Boot 2 To Spring Boot 3’. Here in this article we will be talking about the step by step migration process to Spring Boot 3. Before getting ready to the migration process, it always minimizes the risk factor if you go through any documentation and understand the important artifacts on the same. Let’s start discussing ‘How To Migrate Spring Boot 2 To Spring Boot 3’. How To Migrate Spring Boot 2 To Spring Boot 3? Let’s go through step by step and migrate your Spr ..read more
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New Features in Spring Boot 3 and Spring 6
javatechonline Blog
by devs5003
1M ago
Spring Boot 3.0 is officially released in November, 2022 with some new features and improvements. This is the first major release of Spring Boot after the release of Spring Boot 2.0 around 4.5 years ago. It is also the first Spring Boot GA release to support Spring Framework 6.0. As a developer, we need to be aware of these updates in order to work smoothly with Spring Boot. Undoubtedly, one of the biggest turn in the new release was the dropping of support for older versions of Java. In this article, we will discuss about ‘New Features in Spring Boot 3 and Spring 6’. What are the major highli ..read more
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Spring Security UserDetailsService Using Spring Boot 3
javatechonline Blog
by devs5003
1M ago
In continuation to series of articles on Spring Security, here in this article we will learn ‘How to implement Security in Spring Boot using UserDetailsService With Spring Boot 3?’. After going through the previous articles, I hope we all are very familiar with basics of Security and even the basics of Security in a Spring Boot application. After the release of Spring Boot 3, here we are going to implement ‘Spring Security UserDetailsService Using Spring Boot 3’. In this article, we will create a user registration form and save users with their roles in the database. Then, based on the user ro ..read more
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JavaScript vs Angular JS
javatechonline Blog
by devs5003
1M ago
Undoubtedly, JavaScript is one of the most popular programming languages in the world. Millions of developers use JavaScript to create web applications and even mobile applications. But what about Angular JS? Angular JS is a JavaScript framework that was created by Google. We primarily use it for developing front-end and creating single-page web applications. Therefore, a question comes in the mind, which one should we use? JavaScript or Angular JS? In this article ‘JavaScript vs Angular JS’, we will compare these two technologies and see their differences. Once you go through the complete art ..read more
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Spring Security LDAP Authentication Example
javatechonline Blog
by devs5003
1M ago
If you have ever implemented login feature in a production grade application, you must have heard about the LDAP authentication. LDAP can be used in any type of the hierarchical directory information. The most popular use of LDAP is to store an organizational data. Needless to say, a typical organization generally has directors, managers, supervisors and other positions. In other words, these are the hierarchical data where LDAP mechanism is perfect to implement. In this way, most of the organizations use it to maintain the organizational information including their credentials. Hence, we will ..read more
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How To Sort the List in Java 8
javatechonline Blog
by devs5003
2M ago
During project development, every developer come across a situation where implementation of sorting becomes mandatory. There are many flavors of sorting. It depends on the scenario which one to implement where. In this article, we have mainly focused on sorting using Java 8. Moreover, we have also provided an example which was being used before the introduction of Java 8. Hence our article is on ‘How To Sort the List in Java 8’. There are multiple ways to sort a list of items already available before Java8. Further, Java8 has introduced different ways to make sorting/comparison easy. Let’s get ..read more
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WebClient in Spring Boot
javatechonline Blog
by devs5003
3M ago
A typical modern web application generally has four well known layers i.e. Presentation Layer, Service Layer and Data Layer, and an Integration Layer. The Integration layer generally works with the web services concept and connects two different applications to exchange data between them. One application refers to producer/provider, whereas other refers to consumers. Here, we will discuss about REST consumer/client API using WebClient in Spring Boot. The traditional way of implementing REST client API is by using RestTemplate.  However, we have already gone through the RestTemplate in ano ..read more
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