Programmer Think

Previous: SpringCloud 2020-SpringCloud config distributed configuration center (note) 1. Message driven overview 1.1 INTRODUCTION Shield the differences between the underlying message middleware, reduce the switching version, and unify the programming model of message Official website: https://spring.io/projects/spring-cloud-stream h ...

In Spring Tools 4 for Eclipse, select File - > New - > Maven Project, and then add relevant information in the interface as shown in the figure. <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.6.RELEASE</version&g ...

DispatchServlet parsing of Spring MVC Spring MVC sequence diagram The parent class of DispatchServlet is FrameworkServlet, and the parent class of FrameworkServlet is HttpServletBean Core process: Find the init() method of DispatchServlet and locate the init() method of the parent HttpServletBean of its parent class Locate the locatio ...

ELK introduction ELK is the abbreviation of Elasticsearch+Logstash+Kibana Elasticsearch is a distributed search and analysis engine, which can be used for full-text retrieval, structured retrieval and analysis, and can combine the three. Elasticsearch is based on Lucene and is now one of the most widely used open source search engines. Logst ...

The project initially used Arthas for two purposes: Through arthas, we can solve the problem of realizing the performance problem analysis tool of test environment, performance test environment and production environment. By using the combination of jad, mc and redefine functions, the ability of hot update of some node codes in the prod ...

In the previous article, we learned how to integrate SpringBootAdmin for monitoring and other operations by using Consul registration discovery in microservices. In this article, we learn how to integrate SpringBootAdmin in Zookeeper registry. Introduction to Zookeeper ZooKeeper is a software project of Apache Software Foundation. It provides ...

preface In the traditional system, if the log output can be provided, it can basically meet the requirements. However, once the system is divided into two or more systems, plus load balancing, the call link becomes complex. Especially in the direction of further evolution towards micro services, if there is no reasonable planning of logs and ...

AOP is face to face, why face to face? What operations require AOP programming? The main purpose of Aop is to extract the aspects in the business processing process. It faces a step or stage in the processing process, so as to obtain the isolation effect of low coupling between various parts in the logical process. For example, the most com ...

1. Introduction to filter The concept of filter should be familiar to everyone, especially to those who start with Servlet and learn Java background. So what can we do with this thing? Filter filter is mainly used to filter user requests. It allows us to pre process and post process user requests, such as realizing URL level permission control ...

1, Background We have developed a third-party jar package to integrate with Spring and inject it into the Spring container. In their own jar packages, a custom annotation @ customimport (beanname = "") is added to the classes that need to be added to the Spring container. The value of the beanname attribute represents the name that n ...