Programmer Think

Preface It's been a month since I joined the new company, I've finished the work at hand, and the last few days I finally have time to research the code for my old project.During the process of researching the code, I found that Spring Aop was used in the project to separate the database from reading and writing, and to learn in my own way (I d ...

[SpringBoot Basic Series] Implement a custom configuration loader (application) The @Value annotation is provided in Spring to bind configurations so that they can be read from the configuration file and assigned to member variables; sometimes, our configurations may not be in the configuration file, if they existDb/redis/other files/third-p ...

Now, the microservice projects developed use more distributed locks, so some records are made for the self-determined implementation of distributed locks.*In the actual project, you can use the RLock lock of the Redisson framework directly. Create a springboot redis project     springboot-redis-demo Add dependency package <dependency> ...

Solve the problem of cross domain access of spring MVC web project 1. Cross origin cross domain annotation springboot has its own cross domain annotation, which can be placed on the RestController's class or method. It can also customize those domain names, which can be cross domain and very flexible @CrossOrigin / / by default @ CrossOrigin a ...

1 Introduction Redis is a high-performance NoSQL database and is often used as a cache in major Internet architectures.This article describes how to integrate Spring Data Redis in Springboot and work with Repository. The code structure is as follows: 2 Integration process 2.1 Install Redis Database To save time, install it directly from Docker ...

Before integration, rabbitMqJAR package should be introduced in springboot. The version number can be customized for you. This project follows the version of springboot <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-amqp</artifactId> ...

Preface Because of playing the play framework before, I don't know much about springboot; I have many doubts: ① How can custom annotations work in springboot ② How does the annotation plug-in like Lombok change the generated code Lombok plug-in Today, I found an online post called "Lombok", and I understood my doubts ...

Chapter one: SpringBoot/Spring uses @ Value for attribute binding (podcast code for wisdom spreading)   The ConfigurationProperties annotation will read the properties from the global configuration file by default. When there are many properties, the main configuration file(application.yml, application.properties) will be bloated, so it is ne ...

[MQ Series] Introduction to basic use posture of RabbitListener The message sending posture of rabbitmq was introduced before. Since there is sending, there must be consumers. In the spring boot environment, consumption is relatively simple. With @ RabbitListener annotation, you can basically meet more than 90% of your business development n ...

Configured with springboot @EnableTransactionManagement @Transactional But things don't work at all. First, the first point: Spring's AOP transaction management is rollback for runtimeException by default, which is unchecked exceptions. unchecked exception exceptions are subclasses of runtimeException. Do not roll back if you encounter check ...