Programmer Think

**Problem Description: when using the default scheduled tasks of springboot, if there are multiple tasks, the framework will only start one thread for execution by default, which will cause some tasks cannot start execution at the specified time** **In addition, a separate record will be written about the synchronization lock of timed tasks un ...

To: https://segmentfault.com/a/11900013532009 In the last article Spring boot application startup principle (1) embedding startup script into jar The principle of how springboot integrates the startup script and Runnable Jar into Executable Jar is introduced in so that the generated jar/war file can be started directly This article will show h ...

Preparation Install MongoDB jdk 1.8 maven 3.0 idea Environmental dependence Introduce spring boot starter data mongodb dependency in pom file: <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-mongodb</artifactId> </depen ...

SpringBoot e-commerce project mall (20k+star) address: https://github.com/macrozheng/mall abstract Spring Cloud Alibaba is dedicated to providing one-stop solutions for microservice development. As one of its core components, Nacos can be used as a registry and configuration center. The usage of Nacos is described in detail in this article. In ...

1. Preface Start with this blog post and officially start the Spring and SpringBoot Source Analysis journey.This may be a long process, because I have read the source code before is very one-sided, Spring source does not have a systematic understanding.From the beginning of this article, I will keep updating and strive to have a systematic und ...

Project basic configuration reference article Getting started with SpringBoot 1. Create a new SpringBoot project with myEclipse , use myEclipse to create a new SpringBoot project. Now let's add a log4j2 support to the project. The way of adding is very simple. It only needs two steps. The specific content is as follows: 1. Add thmeleaf suppo ...

How to use 1. Introduce rocketmq client   <dependency> <groupId>org.apache.rocketmq</groupId> <artifactId>rocketmq-client</artifactId> <version>4.1.0-incubating</version> </dependency> 2. Write Producer   DefaultMQProducer producer = new DefaultMQProducer("producer_demo"); //Specify the Name ...

There are many demand scenarios for multiple data sources, while springboot only provides a single data source configuration, so when we need to configure multiple data sources, we need to do it by ourselves. The configuration of multiple data sources described in this article distinguishes different data sources by subcontracting, that is, co ...

Preface At present, it is quite popular to build a microservice using Springboot in Java. When building a microservice, most of us choose to expose a REST API for invocation.Or the company uses a separate front-end and back-end development model where front-end and back-end work is developed by completely different engineers.Maintaining a compl ...

There are several ways to create a spring boot project with maven. Using spring boot starter parent and spring boot dependencies, you can also use two ways to create a spring cloud project. It is recommended to use dependency management and use IDEA to create a spring boot project directly! I. using spring boot starter parent <! ...