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Spring IO Platform Origin: at first, spring only focuses on ioc and aop, and now it has developed into a huge system. For example, security, mvc, etc. In this way, when different modules or external integration, the dependency processing needs corresponding version numbers. For example, the integration of the newer spring and the older quartz ...

spring boot version: 2.1.10.RELEASE This article involves two projects, rabbitmq topic provider and rabbitmq topic consumer, with the same dependency and configuration. Dependent dependence <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot ...

Article directory 1. beauties 2. overview 3. cases 3.1 case 1 4. Container initialization 5.AnnotationConfigApplicationContext 5.1 registerBean 5.1.1 class file registration 5.1.2 AnnotationBeanDefinitionReader#doRegisterBean 5.2 scanBean mode 5.2.1 ClassPathBeanDefinitionScanner#doScan 1. b ...

Transaction Delivery Properties for the 200202-SpringBoot series of tutorials For mysql, there may be several main points of knowledge about transactions at the isolation level; in the Spring system, there is also a transfer property of knowledge point transactions that is equally important when using transactions. This article will focus on ...

1. Enumeration public class TestSeason { public static void main(String[] args) { Season spring = Season.SPRING; System.out.println(spring); spring.show(); System.out.println(spring.getSeasonName()); } } //Enum Class class Season{ //1. Provide the properties of the class and declare it private final private final ...

The latest version of Spring Cloud Finchley.M9 is used. When starting EurekaService, the system will report an error after starting. The prompt is as follows: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.cloud.netflix.eureka.serve ...

One way try....catch...finally, catch and handle exceptions in catch       Mode two Set the default global exception handler.   In case of any abnormality, throw upward one by one, In this process, if the exception is caught and handled by catch, it will be OK; If there is no corresponding catch to catch and handle exceptions, they will be fin ...

1, Analysis of current architecture problems 1.1 problem analysis Our current architecture is shown in the figure below. Eureka is used for service discovery service registration, and Ribbon is used for load balancing. Now let's assume that if the service provider's response is very slow, the servic ...

There are different scope s between beans For example, when bean A is a singleton, if bean B is relied on, it is a prototype rather than a singleton. Since beanA has been assembled in the container, when beanA's method a is called to get the bean B object, it is the same object. Does not meet the prototype requirements of bean B. One of the imp ...

1, Loading mechanism of class The loader loading of classes in Java comes from files, networks, source files, etc. By default, the class loader of the jvm uses the parent delegation mechanism, Bootstrap ClassLoader, Extension ClassLoader, and attachment classloader (system classloader). Each class l ...