SpringMVC之注解配置SpringMVC

publicclassWebInitextendsAbstractAnnotationConfigDispatcherServletInitializer {
/*** 指定spring的配置类* @return*/@OverrideprotectedClass<?>[] getRootConfigClasses() {
returnnewClass[]{SpringConfig.class};
    }
/*** 指定SpringMVC的配置类* @return*/@OverrideprotectedClass<?>[] getServletConfigClasses() {
returnnewClass[]{WebConfig.class};
    }
/*** 指定DispatcherServlet的映射规则，即url-pattern* @return*/@OverrideprotectedString[] getServletMappings() {
returnnewString[]{"/"};
    }
/*** 添加过滤器* @return*/@OverrideprotectedFilter[] getServletFilters() {
CharacterEncodingFilterencodingFilter=newCharacterEncodingFilter();
encodingFilter.setEncoding("UTF-8");
encodingFilter.setForceRequestEncoding(true);
HiddenHttpMethodFilterhiddenHttpMethodFilter=newHiddenHttpMethodFilter();
returnnewFilter[]{encodingFilter, hiddenHttpMethodFilter};
    }
}

@ConfigurationpublicclassSpringConfig {
//ssm整合之后，spring的配置信息写在此类中}

@Configuration//扫描组件@ComponentScan("com.gedeshidai.mvc.controller")
//开启MVC注解驱动@EnableWebMvcpublicclassWebConfigimplementsWebMvcConfigurer {
//使用默认的servlet处理静态资源@OverridepublicvoidconfigureDefaultServletHandling(DefaultServletHandlerConfigurerconfigurer) {
configurer.enable();
    }
//配置文件上传解析器@BeanpublicCommonsMultipartResolvermultipartResolver(){
returnnewCommonsMultipartResolver();
    }
//配置拦截器@OverridepublicvoidaddInterceptors(InterceptorRegistryregistry) {
FirstInterceptorfirstInterceptor=newFirstInterceptor();
registry.addInterceptor(firstInterceptor).addPathPatterns("/**");
    }
//配置视图控制/*@Overridepublic void addViewControllers(ViewControllerRegistry registry) {registry.addViewController("/").setViewName("index");}*///配置异常映射/*@Overridepublic void configureHandlerExceptionResolvers(List<HandlerExceptionResolver> resolvers) {SimpleMappingExceptionResolver exceptionResolver = new SimpleMappingExceptionResolver();Properties prop = new Properties();prop.setProperty("java.lang.ArithmeticException", "error");//设置异常映射exceptionResolver.setExceptionMappings(prop);//设置共享异常信息的键exceptionResolver.setExceptionAttribute("ex");resolvers.add(exceptionResolver);}*///配置生成模板解析器@BeanpublicITemplateResolvertemplateResolver() {
WebApplicationContextwebApplicationContext=ContextLoader.getCurrentWebApplicationContext();
// ServletContextTemplateResolver需要一个ServletContext作为构造参数，可通过WebApplicationContext 的方法获得ServletContextTemplateResolvertemplateResolver=newServletContextTemplateResolver(
webApplicationContext.getServletContext());
templateResolver.setPrefix("/WEB-INF/templates/");
templateResolver.setSuffix(".html");
templateResolver.setCharacterEncoding("UTF-8");
templateResolver.setTemplateMode(TemplateMode.HTML);
returntemplateResolver;
    }
//生成模板引擎并为模板引擎注入模板解析器@BeanpublicSpringTemplateEnginetemplateEngine(ITemplateResolvertemplateResolver) {
SpringTemplateEnginetemplateEngine=newSpringTemplateEngine();
templateEngine.setTemplateResolver(templateResolver);
returntemplateEngine;
    }
//生成视图解析器并未解析器注入模板引擎@BeanpublicViewResolverviewResolver(SpringTemplateEnginetemplateEngine) {
ThymeleafViewResolverviewResolver=newThymeleafViewResolver();
viewResolver.setCharacterEncoding("UTF-8");
viewResolver.setTemplateEngine(templateEngine);
returnviewResolver;
    }
}

@RequestMapping("/")
publicStringindex(){
return"index";
}