管理springmvc組件

概述

在使用springmvc時(shí)要配置哪些東西

前端控制器

控制器映射器和適配器

映射器 ?Map<Set<String>,Object>

Set<String> 存放資源地 ??

@RequestMapper(value={“helle2”,”hello2”})

Object ???存放方法對象和方法所有的對象的對象

執(zhí)行方法 method.invoke(obj,args) ??Method

適配器 ?

@Controller

實(shí)現(xiàn)Controller接口

實(shí)現(xiàn)HttpRequestHandler的接口

視圖解析器

InternalResourceViewResolver

文件上傳的

攔截器

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前端控制器的自動(dòng)管理

找到??WebMvcAutoConfiguration

找到??DispatcherServletAutoConfiguration

創(chuàng)建

注冊

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控制器的自動(dòng)管理[就是自定義的controller]

自動(dòng)掃描

|--默認(rèn)掃描啟動(dòng)類所有的包及其子包；

如果不在啟動(dòng)類所有的包及其子包下面?

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

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視圖解析器的自動(dòng)管理

找到??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 precedenceresolver.setOrder(Ordered.HIGHEST_PRECEDENCE);return resolver; }

進(jìn)入ContentNegotiatingViewResolver

總結(jié)

ContentNegotiatingViewResolver?是一個(gè)視圖解析器的收集器

只要IOC容器里面有實(shí)現(xiàn)有ViewResolver接口的對象都會(huì)被收集起來? ? 如ThymeleafViewResolver

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文件上傳和下載的視圖解析器

找到MultipartAutoConfiguration

找到MultipartProperties

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靜態(tài)資源的訪問

classpath:resources/MATE-INF/resources

classpath:resources/resources

classpath:resources/static

classpath:resources/public

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消息轉(zhuǎn)化

找到??WebMvcAutoConfiguration

格式化轉(zhuǎn)化

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歡迎頁面的配置

以前web.xml

<welcome-file-list>

</webcome-file-list>

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Springboot默認(rèn)配置是static/index.html

?

進(jìn)入WebMvcAutoConfiguration

總結(jié)

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