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catalogue @SpringBootApplication Spring Bean related @Autowired @Component,@Repository,@Service, @Controller @RestController @Scope @Configuration Handling common HTTP request types GET request POST request PUT request DELETE request PATCH request Front and rear end value transmission @PathVariable and @ RequestParam @RequestBod ...

springboot integration jpa project entry level demo preface1, Create an empty boot project2, Prepare the database, mainly MySQL3, Import dependency4, Generate JPA entities5, JPA basic notes6, JPQL and EntityManager7, Configuration file8, demo package preface Simple basic entry level, no fragrance if you have a foundation! 1, Create an empty ...

1.SpringBoot integration task mechanism 1.1. Spring boot implements asynchronous methods Daily development involves many interactive responses between the interface and the back-end, which are not synchronous. Spring boot provides us with an annotation method to implement asynchronous methods. Make the request response of the front end and th ...

1 Definition The full name of JWT is JSON Web Token, which is the most popular cross domain authentication solution at present. JWT is an open standard based on JSON, which is designed to transfer declarations between network application environments. This information can be verified and trusted because it is digitally signed. JWT can sign wi ...

1, Overview (1) Idempotent definition 1. Idempotent definition in Mathematics In programming, the characteristic of an idempotent operation is that the impact of any multiple execution is the same as that of one execution. Idempotent functions, or idempotent methods, refer to functions that can be executed repeatedly with the same parameters ...

Spring Boot starter We know that Spring Boot greatly simplifies the initial construction and development process of the project, which are completed through the starter provided by Spring Boot. Pinda general permission system is developed based on Spring Boot, and some basic modules are starters in essence, so we need to have a comprehensive a ...

01. Hystrix circuit breaker 1. General Problems faced by distributed systems Problems faced by distributed systems Applications in complex distributed architecture have dozens of dependencies, and each dependency will inevitably fail at some time. Service avalanche When calling between multiple microservices, suppose that microse ...

https://blog.didispace.com/spring-boot-learning-1x/ 1. Unified exception handling of application Spring Boot provides a default mapping: / error. When an exception is thrown during processing, it will be transferred to the request for processing, and the request has a global error page to display the exception content. Access a nonexistent U ...

xml configuration of SpringBoot-19-Mybatis In the previous chapter, we have briefly introduced the basic operations of addition, deletion, modification and query of mybatis. The addition, deletion, modification and query of basic (single table) can be implemented according to. If it is slightly more complex, we need to use the xml format of my ...

Draft, need post-processing 01. Micro service architecture What is micro service? Microservice architecture is an architecture model. It advocates dividing a single application into a group of small services, which coordinate and cooperate with each other to provide final value for users. Each service runs in its own independent process ...