Manage springmvc components

Overview

What to configure when using springmvc

Front controller
Controller mapper and adapter
1. Mapper Map <Set <String>, Object>
  1. Set <String> storage resources
    1. @RequestMapper(value={“helle2”,”hello2”})
  2. Object Objects that store method objects and all objects of methods
    1. Execution method method.invoke (obj, args) Method
2. adapter
  1. @Controller
  2. Implement the Controller interface
  3. Implement the interface of HttpRequestHandler
View resolver
InternalResourceViewResolver
File upload
Interceptor

Front-end controller automatic management

Find WebMvcAutoConfiguration

找到 DispatcherServletAutoConfiguration

create

registered

Automatic management of the controller [that is, custom c ontroller]

Auto scan

| --The default scan starts all the packages and their sub-packages;

If it is not under all packages and subpackages of the startup class

要使用 @CompomentScan(basePackage={“com.sxt.controller”,”com.bjsxt.controller”})

Automatic management of view resolvers

Find WebMvcAutoConfiguration

@Bean
@ConditionalOnMissingBean
public InternalResourceViewResolver defaultViewResolver() {
   InternalResourceViewResolver resolver = new InternalResourceViewResolver();
   resolver.setPrefix(this.mvcProperties.getView().getPrefix());
   resolver.setSuffix(this.mvcProperties.getView().getSuffix());
   return resolver;
}

@Bean
@ConditionalOnBean(View.class)
@ConditionalOnMissingBean
public BeanNameViewResolver beanNameViewResolver() {
   BeanNameViewResolver resolver = new BeanNameViewResolver();
   resolver.setOrder(Ordered.LOWEST_PRECEDENCE - 10);
   return resolver;
}

@Bean
@ConditionalOnBean(ViewResolver.class)
@ConditionalOnMissingBean(name = "viewResolver", value = ContentNegotiatingViewResolver.class)
public ContentNegotiatingViewResolver viewResolver(BeanFactory beanFactory) {
   ContentNegotiatingViewResolver resolver = new ContentNegotiatingViewResolver();
   resolver.setContentNegotiationManager(beanFactory.getBean(ContentNegotiationManager.class));
   // ContentNegotiatingViewResolver uses all the other view resolvers to locate
   // a view so it should have a high precedence
   resolver.setOrder(Ordered.HIGHEST_PRECEDENCE);
   return resolver;
}