Posts (page 105)
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9 min readIn Spring Boot, you can encrypt passwords using various encryption algorithms. Here is an overview of how to encrypt a password in Spring Boot:Use the BCryptPasswordEncoder class from the Spring Security library. This class provides the encode() method to encrypt a plain-text password. Start by adding the Spring Security dependency to your project's build configuration file, such as pom.xml for Maven or build.gradle for Gradle.
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10 min readTo connect Spring Boot with PostgreSQL, you need to follow these steps:Add the PostgreSQL dependency to your Spring Boot project. In your pom.xml file, add the following dependency: <dependency> <groupId>org.postgresql</groupId> <artifactId>postgresql</artifactId> </dependency> Configure the database connection properties in the application.properties file. Open the src/main/resources/application.properties file and add the following lines: spring.
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11 min readTo add a foreign key to a Spring Boot entity, you need to follow these steps:Define the parent entity: First, define the entity that will act as the parent entity. This entity will have the primary key that will be referenced by the foreign key in the child entity. Define the child entity: Next, define the child entity that will contain the foreign key. In this entity, you need to define a field that will store the foreign key value.
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13 min readOAuth2 is a widely used authorization protocol that allows third-party applications to access user data from a service provider, such as Google or Facebook, without directly accessing the user's credentials. In Spring Boot, implementing OAuth2 can be achieved by following a few steps.Firstly, add the required dependencies to your Spring Boot project.
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9 min readTo use Kafka in Spring Boot, you need to follow the following steps:Dependency Setup: Add the required dependencies for Kafka and Spring Boot in your project's build file. This can be done using Maven or Gradle. Configuration: Configure Kafka properties in the application.properties or application.yml file. Set the bootstrap servers' address, topics, and other necessary Kafka configurations. Producer Setup: Create a KafkaProducer bean that will send messages to Kafka topics.
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10 min readTo enable HTTPS in a Spring Boot application, you need to perform the following steps:Generate or obtain an SSL certificate: You can either generate a self-signed certificate or obtain one from a trusted certificate authority (CA). Include the certificate in the application's keystore: Spring Boot uses a keystore file to store certificates. You need to include the SSL certificate in this keystore. Configure the application.properties file: Add the following properties to the application.
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13 min readIn Spring Boot, validating a request body can be achieved by utilizing the Bean Validation API and integrating it with the framework's built-in support for data binding. Here is a general approach to validating a request body in Spring Boot:Annotate your request body object with validation constraints using annotations from the Bean Validation API. For example, you can use annotations like @NotNull, @Size, or @Valid for nested objects.
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17 min readIn order to implement JWT (JSON Web Token) in a Spring Boot application, you need to follow these steps:Add the necessary dependencies: Include the required dependencies in your Spring Boot project's pom.xml file. These dependencies typically include spring-boot-starter-security and jjwt (Java JWT library). Configure Spring Security: Modify your application's security configuration to enable JWT authentication.
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12 min readTo use a logger in Spring Boot, you can follow these steps:Import the necessary package: Start by importing the appropriate logger package. For example, you can use the org.slf4j.Logger package. Create a logger instance: Declare a logger instance in your class using the logger package. For instance, you can create an instance like private static final Logger logger = LoggerFactory.getLogger(ClassName.class);, replacing ClassName with the appropriate class name.
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10 min readTo enable Cross-Origin Resource Sharing (CORS) in Spring Boot, you need to follow these steps:Add a dependency: Start by adding the Spring Web dependency to your project's build file (pom.xml for Maven or build.gradle for Gradle). Create a configuration class: Create a new class in your project, typically named "CorsConfiguration.java", and add the @Configuration annotation to it. This class will contain the configuration for CORS.
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8 min readTo connect a Spring Boot application to a MySQL database, you need to follow these steps:Include MySQL Connector dependency: In your Spring Boot application's pom.xml file, add the MySQL Connector dependency to enable the application to communicate with the MySQL database. You can add the following lines within the section: <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.
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10 min readSure! Dockerizing a Spring Boot application involves containerizing the application using Docker, which allows for easy deployment and scalability. Here's a step-by-step guide on how to achieve this:Docker Installation: Install Docker on your machine, ensuring it's up and running. Dockerfile Creation: Create a file named "Dockerfile" in the root directory of your Spring Boot application. Specify Base Image: Specify the base image for your Docker container.