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Spring boot auto configuration is mainly completed by @ EnableAutoConfiguration, @ Conditional, @ EnableConfigurationProperties or @ ConfigurationProperties.@EnableAutoConfiguration enables automatic configuration. Its main function is to call loadFactoryNames() in the spring core package to load the written automatic configuration in th ...

Guide reading A few days ago, I discussed with a friend about their company's system problems, traditional single application and cluster deployment. He said that there might be a risk of instantaneous increase in the concurrent volume of services in the near future. Although the cluster is deployed, the request delay is still very large after ...

_Recent reviews of Spring Cloud-related sources have added enable s to each new starter, such as: @EnableDiscoveryClient, which registers applications with Eureka Server and pulls services owned by Eureka Server into a micro-service system.Click on the EnableDiscoveryClient source code and you will find the @import annotation inside.The ...

brief introduction SDK is generally provided for APP social login. There are two situations for SDK First kind SDK provider returns openId and logs in to our interface system with openId to apply for token Create the OpenIdAuthenticationToken class: /** * */ package com.spring.security.social.openid; import java.util.Collection ...

brief introduction Creating threads is the most basic operation in multithreaded programming 1. Inherit Thread class and override run() method public class CreatingThread01 extends Thread { @Override public void run() { System.out.println(getName() + " is running"); } public static void main(String[] args) { new ...

Guide reading Articles published the other day Spring boot multi data source dynamic switch and Spring boot: a huge pit for integrating multiple data sources In, it is mentioned that adding @ Primary interface to dynamic data source will cause circular dependency exception, as shown in the following figure: This is a typical constructor dep ...

brief introduction Before modification, password login returns standard OAuth2 login success message Technological process Refer to this process to generate a token in the login success processor HkAuthenticationSuccessHandler and return: This is a successful processor copied from the previous browser project. We need to install the abov ...

Preface It is agreed as follows: SpringBootAdmin - SBA SpringSecurity - SSE According to the current situation of search engine retrieval, everyone's application of SBA is relatively limited, with few divergent use. It is basically based on the example given on the official website (eureka-SBA-SSE), In addition, there are some confusing probl ...

@[toc] Spring cloud uses Feign and Hystrix to realize fault-tolerant protection of services Preface The fault-tolerant protection of Hystrix enables the code to be spliced with the + sign when it is called. The implementation method is not elegant, as shown in the figure below. Hystrix calls service @HystrixCommand(fallbackMethod = "fallbac ...

@[toc] Spring cloud uses Ribbon to achieve client load balancing Preface In Spring cloud, when multiple services of the same type start to register in the service registry, the frequency service is the cluster When the consumer (client) consumes, it needs to select and call the service. Service registration click The default call in Spring clo ...