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Spring Bean Singleton and Prototype

When using the Spring framework to build enterprise-level applications, understanding and correctly using different Bean scopes is crucial. The framework provides various scopes, with the most commonly used being Spring Singleton and Prototype. This article will help you understand the differences between these two scopes and their use cases through simple examples. Spring Singleton BeanThe Spring container creates a single instance of a Bean for each Spring IoC container. This means that no matter how many times we request it, Spring will provide the same Bean instance.

New Features in Java 17

Java 17, released on September 14, 2021, is a Long-Term Support (LTS) version. As an LTS release, it brings many significant features and updates. This article will introduce these new features and provide a download link for Java 17. New Features in Java 17 Sealed ClassesSealed classes allow classes or interfaces to restrict which other classes or interfaces can extend or implement them. This enhances Java’s type system, making it possible to create more predictable and secure type hierarchies.

Spring BeanDefinition Usage Guide

In the Spring framework, BeanDefinition is a core interface used to define the configuration information of a bean. It includes various property settings, constructor arguments, other special configurations, and the actual implementation class of the bean. Key Attributes of BeanDefinition className: Indicates the fully qualified name of the bean, i.e., the specific implementation class. scope: Defines the scope of the bean, such as singleton or prototype. lazyInit: Indicates whether to lazily initialize the bean.

Maven Dependency Scopes

Maven dependency scopes define the availability of dependencies in different stages of the project lifecycle and configurations. Common scopes include compile, provided, runtime, test, import, and system. Introduction to Dependency Scopes COMPILE Description: This is the default scope. Dependencies with this scope are available in the classpath for compilation, testing, and execution of the project. Typical Use: Libraries needed in the compile classpath of the project, such as libraries used to write and compile application code.

ByteBuffer clear() Method vs compact() Method

The buffer.compact() and buffer.clear() are two different methods for buffer operations in Java NIO, with distinct functionalities and behaviors. Method Overview buffer.compact():This method is used to reorganize the data in the buffer. It moves the unread data to the beginning of the buffer while updating the position and limit of the buffer to prepare for subsequent write operations. This helps retain unread data and provides space for future write operations.

Configuring WordPress to Use SMTP for Sending Emails

By default, WordPress uses the PHP Mail function to send emails. However, it’s better to use SMTP because it can handle sending messages more efficiently, and you can also use it to send emails from third-party email services. You can also refer to this video for further guidance. Steps to Configure SMTP in WordPressFirst, follow the instructions in our WordPress plugin installation tutorial to install a plugin called WP Mail SMTP.

How to Enable or Disable WordPress Automatic Updates

In WordPress 3.7, a new feature was introduced: automatic updates for the core. This tutorial will explain how these automatic updates work, how to configure them, and how to completely disable WordPress automatic updates, so you can handle them manually. Default Automatic Update ConfigurationFrom version 3.7 and above, by default, your WordPress site will automatically update when new minor or security updates are released. This means that if you’re using WordPress 3.