Spring Boot web Development

Web Development Auto-configuration class: Org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration

1.1. Automatic configuration of the Viewresolver

The configuration of the View Mvcproperties object:

Org.springframework.boot.autoconfigure.web.WebMvcProperties.View

1.2. Configure static resource 1.2.1 automatically. Enter rule to/

If the rule to enter SPRINGMVC is/, the path to the default static resource for Spring boot is:

spring.resources.static-locations=classpath:/meta-inf/resources/,classpath:/resources/,classpath:/static/, classpath:/public/

Test:

1.2.2. When entering a rule of *.xxx or not specifying a static file path

Placing static resources in the static directory under WebApp can be accessed by address:

Test:

1.3. Custom Message Converters

To customize the message converter, simply add the message Converter's @bean to the spring container in the @configuration class, and it will be automatically added to the container by spring boot.

    @Bean    public  stringhttpmessageconverter stringhttpmessageconverter () {        Stringhttpmessageconverter Converter  new stringhttpmessageconverter (Charset.forname (" UTF-8 " ));         return Converter;}

Default configuration:

1.4. Customizing the SPRINGMVC Configuration

There are times when we need to configure SPRINGMVC instead of using the default, such as adding an interceptor, which can be extended by inheriting webmvcconfigureradapter and then overriding the methods in the parent class.

1 import Java.nio.charset.Charset;2 3 import java.util.List;4 5  6 7 import javax.servlet.http.HttpServletRequest;8 9 import Javax.servlet.http.HttpServletResponse;Ten  One   A  - import org.springframework.context.annotation.Configuration; -  the import Org.springframework.http.converter.HttpMessageConverter; -  - import Org.springframework.http.converter.StringHttpMessageConverter; -  + import Org.springframework.web.servlet.HandlerInterceptor; -  + import Org.springframework.web.servlet.ModelAndView; A  at import org.springframework.web.servlet.config.annotation.InterceptorRegistry; -  - import Org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; -  -   -  in@Configuration//affirm that this is a configuration -  to  Public classMysrpingmvcconfig extends webmvcconfigureradapter{ +  -   the  *     //Custom Interceptors $ Panax Notoginseng @Override -  the      Public voidaddinterceptors (Interceptorregistry registry) { +  AHandlerinterceptor Handlerinterceptor =NewHandlerinterceptor () { the  + @Override -  $              Publicboolean prehandle (httpservletrequest request, httpservletresponse response, Object handler) $  - throws Exception { -  theSystem. out. println ("Custom Interceptors ..... ....."); - Wuyi                 return true; the  -             } Wu  -             About  $ @Override -  -              Public voidPosthandle (httpservletrequest request, httpservletresponse response, Object handler, -  A Modelandview Modelandview) throws Exception { +  the                 -  $             } the  the             the  the @Override -  in              Public voidaftercompletion (httpservletrequest request, httpservletresponse response, Object handler, the  the Exception ex) throws Exception { About  the             } the  the         }; +  -Registry.addinterceptor (Handlerinterceptor). Addpathpatterns ("/**"); the Bayi     } the  the   -  -     //the second method of customizing the message converter the  the @Override the  the      Public voidConfiguremessageconverters (listconverters) { -  theStringhttpmessageconverter converter =NewStringhttpmessageconverter (Charset.forname ("UTF-8")); the  the Converters.add (converter);94  the     } the  the  98  About}

Spring Boot web Development