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1. Create project 1.1 creation steps 1.2 add pom dependency <dependencies> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.9.0</version> </dependency> <!--test--> <dep ...

1 what is bean circular dependency circular reference is the original text of circular dependency, which refers to the mutual reference of multiple objects to form a closed loop. Take the circular dependency of two objects as an example: There are three cases of circular dependency in Spring: The cyclic dependence of the constructor; Circular ...

Spring boot series (x) unified exception handling and unified result return Previous recommendation Spring boot series (I) idea new spring boot project Introduction to SpringBoot series (2) Spring boot series (3) configuration file details Spring boot series (IV) detailed explanation of web static resource configuration Spring boot series (V) M ...

Gateway introduction What is it? There is a very important component in the Spring Cloud family bucket: gateway. In the 1.x version, Zuul gateway is used, but in the 2.x version, Spring Cloud has developed a set of gateway components: Spring Cloud Gateway because Zuul's upgrade keeps skipping tickets. Based on Spring Boot 2.x, Spring WebFlu ...

spring supports the json parser of Jackson 2 by default. Now most people are used to the parser of fastJson. Now it's easy to say how to configure the json parser jackson2 The configuration is as follows: @Configuration public class WebConfig extends WebMvcConfigurerAdapter { //JackSon configuration @Override public void configureMess ...

Chapter 10 of spring cloud, upgrading, service GateWay gateway, service configuration Config and service Bus bus 1, Service GateWay 1. Gateway overview Why does it exist: Different microservices usually have different network addresses, and external clients may need to call multiple microservices interfaces to fulfill the requirements of ...

Because we don't want to repeat the tedious configuration bean s in xml, we use MapperScannerConfigurer to scan the package and automatically generate instances for spring management. However, it was found that the initialization of datasource failed because the value in PropertyPlaceholderConfigurer could not be obtained. Through online searc ...

Recently, several colleagues of the Department have been wronged and left one after another. They are reluctant to leave when they have been working together for three years. After all the formalities have been properly handled, they are sent out of the company after greetings. Several elder brothers laugh at me when they leave. I immediately f ...

In spring webmvc, all requests start with a class called dispatcher servlet. It is the hub of request dispatch, often referred to as the front-end controller, also known as the request dispatcher. From the derived relationship, we can see that the dispatcher Servlet is also a Servlet. When we map the / path to the dsiaaptcherservlet, all reque ...

This article mainly reveals the loading of Spring Cloud Gateway and how to handle the request process from the source point of view. 1. Overview of spring gateway Spring Cloud Gateway is an official gateway developed by spring based on Spring 5.0, Spring Boot 2.0, Project Reactor and other technologies. Spring Cloud Gateway aims to provide a ...