一 快捷ViewController
1 举例
@Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/index").setViewName("/index");
registry.addViewController("/toUpload").setViewName("/upload");
registry.addViewController("/converter").setViewName("/converter");
registry.addViewController("/sse").setViewName("/sse");
registry.addViewController("/async").setViewName("/async");
}2 说明
addViewController中的参数是路径，setViewName中的参数是页面名称。
二 路径参数配置
1 举例
@Override
public void configurePathMatch(PathMatchConfigurer configurer) {
configurer.setUseSuffixPatternMatch(false);
}2 说明
在Spring MVC中，路径参数如果带有"."的话，"."后面的值将被忽略，可以通过上面示例的配置，使得"."后面的值不被忽略。
3 效果
三 更多配置
WebMvcConfigurerAdapter类的方法可以配置MVC。
因为WebMvcConfigurerAdapter是WebMvcConfigurer接口的实现，所以WebMvcConfigurer的API内的方法也可以用来配置MVC。
1 WebMvcConfigurerAdapter的源码
public abstract class WebMvcConfigurerAdapter implements WebMvcConfigurer {
@Override
public void addFormatters(FormatterRegistry registry) {
}
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
}
@Override
public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
}
@Override
public Validator getValidator() {
return null;
}
@Override
public void configureContentNegotiation(ContentNegotiationConfigurer configurer) {
}
@Override
public void configureAsyncSupport(AsyncSupportConfigurer configurer) {
}
@Override
public void configurePathMatch(PathMatchConfigurer configurer) {
}
@Override
public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {
}
@Override
public void addReturnValueHandlers(List<HandlerMethodReturnValueHandler> returnValueHandlers) {
}
@Override
public void configureHandlerExceptionResolvers(List<HandlerExceptionResolver> exceptionResolvers) {
}
@Override
public MessageCodesResolver getMessageCodesResolver() {
return null;
}
@Override
public void addInterceptors(InterceptorRegistry registry) {
}
@Override
public void addViewControllers(ViewControllerRegistry registry) {
}
@Override
public void configureViewResolvers(ViewResolverRegistry registry) {
}
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
}
@Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
}
}2 WebMvcConfigurer的源码
public interface WebMvcConfigurer {
/**
* Add {@link Converter}s and {@link Formatter}s in addition to the ones
* registered by default.
*/
void addFormatters(FormatterRegistry registry);
/**
* Configure the {@link HttpMessageConverter}s to use for reading or writing
* to the body of the request or response. If no converters are added, a
* default list of converters is registered.
* <p><strong>Note</strong> that adding converters to the list, turns off
* default converter registration. To simply add a converter without impacting
* default registration, consider using the method
* {@link #extendMessageConverters(java.util.List)} instead.
* @param converters initially an empty list of converters
*/
void configureMessageConverters(List<HttpMessageConverter<?>> converters);
/**
* A hook for extending or modifying the list of converters after it has been
* configured. This may be useful for example to allow default converters to
* be registered and then insert a custom converter through this method.
* @param converters the list of configured converters to extend.
* @since 4.1.3
*/
void extendMessageConverters(List<HttpMessageConverter<?>> converters);
/**
* Provide a custom {@link Validator} instead of the one created by default.
* The default implementation, assuming JSR-303 is on the classpath, is:
* {@link org.springframework.validation.beanvalidation.OptionalValidatorFactoryBean}.
* Leave the return value as {@code null} to keep the default.
*/
Validator getValidator();
/**
* Configure content negotiation options.
*/
void configureContentNegotiation(ContentNegotiationConfigurer configurer);
/**
* Configure asynchronous request handling options.
*/
void configureAsyncSupport(AsyncSupportConfigurer configurer);
/**
* Helps with configuring HandlerMappings path matching options such as trailing slash match,
* suffix registration, path matcher and path helper.
* Configured path matcher and path helper instances are shared for:
* <ul>
* <li>RequestMappings</li>
* <li>ViewControllerMappings</li>
* <li>ResourcesMappings</li>
* </ul>
* @since 4.0.3
*/
void configurePathMatch(PathMatchConfigurer configurer);
/**
* Add resolvers to support custom controller method argument types.
* <p>This does not override the built-in support for resolving handler
* method arguments. To customize the built-in support for argument
* resolution, configure {@link RequestMappingHandlerAdapter} directly.
* @param argumentResolvers initially an empty list
*/
void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers);
/**
* Add handlers to support custom controller method return value types.
* <p>Using this option does not override the built-in support for handling
* return values. To customize the built-in support for handling return
* values, configure RequestMappingHandlerAdapter directly.
* @param returnValueHandlers initially an empty list
*/
void addReturnValueHandlers(List<HandlerMethodReturnValueHandler> returnValueHandlers);
/**
* Configure the {@link HandlerExceptionResolver}s to handle unresolved
* controller exceptions. If no resolvers are added to the list, default
* exception resolvers are added instead.
* @param exceptionResolvers initially an empty list
*/
void configureHandlerExceptionResolvers(List<HandlerExceptionResolver> exceptionResolvers);
/**
* Add Spring MVC lifecycle interceptors for pre- and post-processing of
* controller method invocations. Interceptors can be registered to apply
* to all requests or be limited to a subset of URL patterns.
* <p><strong>Note</strong> that interceptors registered here only apply to
* controllers and not to resource handler requests. To intercept requests for
* static resources either declare a
* {@link org.springframework.web.servlet.handler.MappedInterceptor MappedInterceptor}
* bean or switch to advanced configuration mode by extending
* {@link org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport
* WebMvcConfigurationSupport} and then override {@code resourceHandlerMapping}.
*/
void addInterceptors(InterceptorRegistry registry);
/**
* Provide a custom {@link MessageCodesResolver} for building message codes
* from data binding and validation error codes. Leave the return value as
* {@code null} to keep the default.
*/
MessageCodesResolver getMessageCodesResolver();
/**
* Configure simple automated controllers pre-configured with the response
* status code and/or a view to render the response body. This is useful in
* cases where there is no need for custom controller logic -- e.g. render a
* home page, perform simple site URL redirects, return a 404 status with
* HTML content, a 204 with no content, and more.
*/
void addViewControllers(ViewControllerRegistry registry);
/**
* Configure view resolvers to translate String-based view names returned from
* controllers into concrete {@link org.springframework.web.servlet.View}
* implementations to perform rendering with.
*/
void configureViewResolvers(ViewResolverRegistry registry);
/**
* Add handlers to serve static resources such as images, js, and, css
* files from specific locations under web application root, the classpath,
* and others.
*/
void addResourceHandlers(ResourceHandlerRegistry registry);
/**
* Configure a handler to delegate unhandled requests by forwarding to the
* Servlet container's "default" servlet. A common use case for this is when
* the {@link DispatcherServlet} is mapped to "/" thus overriding the
* Servlet container's default handling of static resources.
*/
void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer);
}