Programming VIP

1.@RequestParam       1. It is used to receive the parameters passed by the method before the parameters passed by the method (it is an annotation that accepts common parameters in spring MVC)       2. Attribute: name in value request parameter required: whether this parameter is provided in the reques ...

In the last article, we talked about the life cycle of springbeans and knew the process of instantiation, creation and destruction of springbeans, but we know that Spring supports one Bean to introduce other Bean objects, so the problem of interdependence is inevitable. How does Spring solve this problem? There are many ways for Spring to regis ...

SpringBoot SpringBoot has all the advantages of spring, such as open source, lightweight, non intrusive and so on. Spring's own inversion of control (IOC) and aspect oriented (AOP) programming are also the characteristics of SpringBoot. However, spring itself has unavoidable disadvantages. First, it is the heavyweight configuration. Variou ...

This article introducesWe all know that the Spring Boot project consists of starters, such as web starters, redis starters and so on.By introducing the corresponding starter through maven, we can perfectly use the integrated spring mvc or redis without configurationSo how do we customize a starter?This article will show you how to use the auto ...

Ioc overview Ioc(Inversion Of Control) is translated as control inversion First, make it clear that the control without inversion is "active control" Active control: all the codes we wrote before are active control, which means that we can instantiate whatever objects are needed during the running of the programInversion of control ...

Filter chain analysis In Spring security, all functions are implemented through filters, which form a complete filter chain. 4.1 initialization process analysis 4.1.1ObjectPostProcessor /** * Allows objects to be initialized. Typically, this is used to call the Aware method, initializingbean Afterpropertieset() and ensure disposab ...

Last This article introduces the spring ioc container initialization process as a whole (starter - > refresh - > registerbeandefinition - > docreatebean - > populatebean)But it is limited to the routine process. How to deal with some special cases, such as "object loop application" spring - this is the question to be answe ...

Mybatis annotation development single table operation 1. Common notes of mybatis In recent years, annotation development has become more and more popular. Mybatis can also use annotation development, which can be used to reduce the writing of Mapper Mapping file. @Insert: add @Update: implement update @Delete: delete @Select: implement q ...

@Bean The @ Configuration annotation mentioned earlier is equivalent to turning a class into spring Configuration xml, how to inject beans with Configuration files? This requires the annotation @ Bean, which is used for methods. Adding @ Bean to a method is equivalent to adding a < Bean > tag to xml. Let's take a look at an example first ...

prepare Download idea2019 3.5 install and activate (see the compressed package sent by brother chicken in the group for specific steps). Pull spring 5 3.5 source code (tips: it is recommended to start with Star and then Forked, and then go back to the project warehouse of your account and then pull): https://gitee.com/hhf1237/spring-framewor ...