1. Functional features The execution of BeanFactoryPostProcessor is a very important part of the Spring Bean life cycle; BeanFactory level post-processor, org.springframework.beans.factory.config.BeanFactoryPostProcessor#postProcessBeanFactory will only be executed once during the Spring life cycle; Allows the BeanDefinition data to be read after the container reads the BeanDefinition data and before the bean is instantiated, and can be […]
Tag: processor
Visual Studio preprocessor macros in detail
The default Release and Debug version preprocessor macros in Visual Studio C/C++ projects can include some common macro definitions, some of which may depend on the project’s settings and target platform, in addition to which custom ones can be created as needed. Version: Figure-1 Debug version preprocessing macro definition of a VS C/C++ project WIN32:This […]
Learn C language in 2 days ——- 5. Preprocessor and macros
1. Macro definition and function macro The preprocessor is an important part of the C language, which processes the source code before the actual compilation process. Preprocessor directives start with the `#` symbol and perform text replacement, conditional compilation, file inclusion and other operations on the source code before compilation. Macro definition is a major […]
2.SpringSecurity-A brief description of the processor
Article directory SpringSecurity returns json 1. Login success handler 1.1 Unified response class HttpResult 1.2 Login success handler 1.3 Configure login success handler 1.4 Login 2. Login failure handler 2.1 Login failure handler 2.2 Configure login failure handler 2.3 Login 3. Exit the success handler 3.1 Exit the success handler 3.2 Configure exit success handler […]
The black magic of starting Java applications: initialization performance decryption @PostConstrut, InitialzingBean, init-method, BeanPostProcessor
In projects, we often encounter some logical processing at startup, such as preloading configuration information, preloading cache information, etc. What are the methods? Let’s discuss them together: 1. Method 1. Constructor method initialization: Use the constructor method to initialize the basic properties of the object. This is the most basic initialization method. public class MyBean […]
13 styles of CSS preprocessors
13 styles of CSS preprocessor CSS (Cascading Style Sheets) is the backbone of web design, allowing developers to control the presentation and layout of web pages. However, as Web projects become more complex, the limitations of native CSS become increasingly apparent. This is where the CSS preprocessor comes in, providing a set of features to […]
Qt implementation of picture processor PictureEdit
Directory Picture processor PictureEdit 1 Create toolbar 2 Open the picture 3 show pictures 4 Grayscale processing 5 color inversion 6 mosaics Picture processor PictureEdit Create a project and add resource files 1 Create toolbar widget.h #include <QWidget> #include<QPixmap> #include<QFileDialog> #include<QAction> #include<QToolBar> #include<QIcon> class QToolBar; private: void createTollBar(); private: QPixmap pic; QToolBar * toolBar; widget.cpp […]
Spring – Spring’s post-processor
Directory 1. Basic process of Bean instantiation 2. BeanFactoryPostProcessor 2.1 Modification of BeanDefinition 2.2 Registration of BeanDefinition BeanDefinitionRegistryPostProcessor 3. BeanPostProcessor 4. Improve the instantiation flow chart 1. Basic process of Bean instantiation When we talked about BeanFactory and ApplicationContext before, we talked about two very important map collections, beanDefinitionMap and singletonObjects. One of them stores […]
Dynamically modify the path of @FeignClient through BeanFactotyPostProcessor
Recently, a project has a requirement to dynamically modify the request path of @FeignClient after startup. Basically, what I found on the Internet is to use ${…} in @FeignClient and define Feign’s interface path through a configuration file. This does not satisfy us. needs For some special reasons, each of our interfaces has an interfacePath, […]
Spring instantiation source code analysis registerBeanPostProcessors (6)
BeanPostProcessors is an extension mechanism in the Spring framework that allows developers to intervene and customize the process of instantiating, configuring, and initializing beans in the Spring container. The BeanPostProcessor interface defines two methods: postProcessBeforeInitialization and postProcessAfterInitialization, which are called before and after Bean initialization respectively. The role of BeanPostProcessors is to provide additional processing […]