06-Solving circular dependency issues in Spirng

Bean circular dependency problem Circular dependency: A object has B attribute, and B object has A attribute (the husband class Husband has a reference to Wife, and the wife class Wife has a reference to Husband) When the toString() method is overridden and directly outputs wife/husband, a stack memory overflow error caused by recursion will […]

Develop a modern .NetCore console program, including dependency injection/configuration/logging and other elements

1Foreword There are a lot of scenarios where gadgets need to be developed recently. Last time I developed a hive export tool using the go language. The experience was pretty good, but I really don’t like the syntax of the go language. This time I will try to use C# to develop gadgets. The function […]

“Dependency Injection” of golang library

Article directory 1. Write at the front 2. Dependency injection 2.1 Usage scenarios 2.2 Framework comparison 3. Examples of fx framework usage scenarios 3.1 Example 3.2 golang native library 3.3 fx library 3.4 Comparison 3.4.1 Comparison of the above two implementation methods 3.4.2 About over-design 3.4.3 Enlightenment 4. Thoughts 5. References 1. Write at the […]

Go project essentials: A simple introduction to the Wire dependency injection tool

When the number of instance dependencies (components) in a project increases, it will be a very cumbersome task to manually write initialization code and maintain dependencies between components, especially in large warehouses. Therefore, there are already many dependency injection frameworks in the community. In addition to Wire from Google, there are also Dig (Uber) and […]

Spring-Spring dependency injection source code analysis (Part 2)

The working principle and source code analysis of the Automatic Injection (byName, byType) and @Autowired annotations in Spring before. In today’s lesson, let’s analyze what we haven’t finished yet. , the remaining core methods: @Nullable Object resolveDependency(DependencyDescriptor descriptor, @Nullable String requestingBeanName, @Nullable Set<String> autowiredBeanNames, @Nullable TypeConverter typeConverter) throws BeansException; This method means that when a […]

Spring dependency injection methods: set injection and constructor injection

Spring Spring6 enables Log4j2 logging framework dependency injection set injection set injects simple types Classic case: injecting values into attributes of the data source: Inject into array Inject into List collection Inject Set collection Inject into Map collection constructor injection Spring6 enables Log4j2 logging framework Starting from Spring 5, the integrated logging framework supported by […]

2023.11.7 Three major methods of Spring dependency injection

Table of Contents Foreword Property injection (@Autowired) Setter injection Constructor injection @Resource The difference between @Autowired and @Resource The difference between @Autowired and @Resource in finding Bean objects Foreword Profile ? <?xml version=”1.0″ encoding=”UTF-8″?> <beans xmlns=”http://www.springframework.org/schema/beans” xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xmlns:content=”http://www.springframework.org/schema/context” xsi:schemaLocation=”http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/ context https://www.springframework.org/schema/context/spring-context.xsd”> <!–base-package indicates the path to be scanned–> <content:component-scan base-package=”com.java.demo”></content:component-scan> </beans> ? Startup […]

Spring circular dependency solution

Foreword: A BeanCurrentlyInCreationException occurred in the test environment, causing the backend service to fail to start. At first glance, it was a circular dependency in Spring’s bean management. There are circular dependencies of beans in the project, which is a sign of low code quality. Most people hope that the framework layer will wipe their […]