In Spring Boot, @Autowired a javax.sql.DataSource, and you will know which database connection pool is using in the current running application.

Date: 2019-08-11 View: 2030

Spring Boot JDBC + Oracle database + Commons DBCP2 example

In this article, we will show you how to create a Spring Boot JDBC application + Oracle database + Commons DBCP2 connection pool.

Date: 2019-08-11 View: 3333

After stopped and cleaned the WordPress pingback and trackback spams, those spammers have changed strategy to start spamming comments and trackbacks on the post attachments.

Date: 2019-08-11 View: 2437

Spring Boot + Spring Data JPA + Oracle example

In this article, we will show you how to create a Spring Boot + Spring Data JPA + Oracle + HikariCP connection pool example.

Date: 2019-08-11 View: 4096

Java 8 has introduced a new class Optional in java.util package. It is used to represent a value is present or absent. The main advantage of this new construct is that No more too many null checks and NullPointerException. It avoids any runtime NullPointerExceptions and supports us in developing clean and neat Java APIs or Applications. Like Collections and arrays, it is also a Container to hold at most one value. Let us explore this new construct with some useful examples.

Date: 2019-08-11 View: 1966

Add the following lines in application.properties to log the Hibernate SQL query.

Date: 2019-08-11 View: 2218

This article shows you how to use ALTER TRIGGER to rename a trigger.

Date: 2019-08-11 View: 3917

A quick JPA + Oracle sequences example, for self reference.

Date: 2019-08-11 View: 2970

Spring Boot + Spring Data MongoDB example

In this article, we will show you how to create a Spring Boot + Spring Data MongoDB application, using Gradle build tool.

Date: 2019-08-11 View: 2250

In this article, we will show you how to add a custom method to Spring Data JPA CrudRepository and MongoDB MongoRepository

Date: 2019-08-11 View: 1970

In Spring Boot, you can use appContext.getBeanDefinitionNames() to get all the beans loaded by the Spring container.

Date: 2019-08-11 View: 1776

In Spring Boot + Spring Data JPA application, to support the JSR310 java.time.* APIs, we need to register this Jsr310JpaConverters manually.

Date: 2019-08-11 View: 2265

Gradle is not sync with IntelliJ IDEA

Make some changes in the build.gradle file, but the changes never apply or sync to the IDEA (Tested with 2016.3)

Date: 2019-08-11 View: 2034

Spring Boot Test How to disable DEBUG and INFO logs

Run the Spring Boot integration test or unit test, many annoying DEBUG and INFO logs are displayed in the console.

Date: 2019-08-11 View: 3985

Spring Boot Profiles example

In this article, we will show you how to use @Profile in Spring Boot and also how to test it.

Date: 2019-08-11 View: 1855