Programmer Think

1. Write before 1. Overview Previously we talked about finding the corresponding mapper by request, that is, finding the corresponding method, so how to call this method. Because different methods of receiving requests have different ways, the simplest is that the method name is different, so how to call. Here we use the adapter mode in desig ...

Spring property placeholder parser PropertyPlaceholderHelper source code reading PropertyPlaceholderHelper is used to process the "${}" placeholder in the string, such as obtaining the property value defined in the corresponding property file through the @ Value("${}") annotation (but @ Value("#{}") cannot be proc ...

[good book sharing: Spring responsive programming -- JD] 2.2 practice of using RxJava responsive framework RxJava library is the Java virtual machine implementation of Reactive Extensions, which is similar to the combination of observer mode, iterator mode and functional programming. 2.2.1 responsive flow = observer + iterator Separate pr ...

SpringBoot integrates mybatis error reporting document records The following is the error information that I have delayed sorting out for many hours. I hope you can refer to it. This paper mainly gives it to myself in the form of notes as a reference. 1. Organization structure of the project Set the User class in pojo, create the Dao layer ...

Chapter 3 AOP aspect oriented programming 1. Problems caused by adding functions. In the source code, the functions added in the business method. 1) The source code may change a lot. 2) There are many duplicate codes. 3) Code is difficult to maintain. 2. AOP concept 2.1 what is AOP AOP (aspect oriented programming): Aspect Oriented ...

1, Foreword Redis is one of the basic components that must be used in distributed microservices. At present, it is basically used in most domestic projects, and caching is one of its main functions. Frequent use of set() method to add annotations in projects will cause code duplication and bloated. For those who do not have enough development ...

Building microservices: an introduction to Spring boot What is spring boot Spring boot is a new framework provided by pivot team. It is designed to simplify the initial construction and development process of new spring applications. The framework uses a specific way to configure, so that developers no longer need to define templated configurat ...

[Instructions] This article is only about POM code for plugin s in Maven. For Maven's common dependency configuration codes, see my other blog: Common Dependency Configuration Codes for Maven Profile POM:https://blog.csdn.net/wangpaiblog/article/details/112797500 ordinary Running Environment JDK 17 Maven 3.6.3 IntelliJ ...

catalogue 1, Introduction to swagge 2, SpringBoot integration Swagger   3, Configure Swagger   4, Configure scan interface 5, Configure Swagger switch 6, Configure API grouping   7, Entity configuration 8, Summary: 1, Introduction to swagge Front and rear end separation:        &nbsp ...

Problems in transfer operation Suppose we want to implement a transfer operation, we add a transfer method in IAccountService (business layer interface of the account), /** * transfer accounts * @param sourceName Name of transfer out merchant * @param targetName Transfer in account name * @param money Tra ...