SpringBoot扩展自定义配置

爱被打了一巴掌 2022-03-15 14:51 404阅读 0赞

### 一.在默认SpringMVC配置基础上扩展自定义配置 ###

1）、创建一个配置类，继承WebMvcConfigurerAdapter

2）、添加@Configuration注解

3）、例如自定义一个视图解析：

@Configuration
    public class MyMvcConfig extends WebMvcConfigurerAdapter {
        //打开成功页
        @Override
        public void addViewControllers(ViewControllerRegistry registry){
            registry.addViewController("/zhq").setViewName("success");
        }
       //打开主页
       @Bean
        public WebMvcConfigurerAdapter  toIndex(){
            WebMvcConfigurerAdapter  adpter=new WebMvcConfigurerAdapter(){
                @Override
                public void addViewControllers(ViewControllerRegistry registry) {
                    registry.addViewController("/").setViewName("index");
                    registry.addViewController("/index.html").setViewName("index");
                }
            };
            return adpter;
        }

![20190303162228597.png][]

说明：其中WebMvcConfigurerAdapter中定义了扩展自定义配置的接口,要添加配置重写方法就像了

public abstract class WebMvcConfigurerAdapter implements WebMvcConfigurer {
        public WebMvcConfigurerAdapter() {
        }
    
        public void configurePathMatch(PathMatchConfigurer configurer) {
        }
    
        public void configureContentNegotiation(ContentNegotiationConfigurer configurer) {
        }
    
        public void configureAsyncSupport(AsyncSupportConfigurer configurer) {
        }
    
        public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        }
    
        public void addFormatters(FormatterRegistry registry) {
        }
    
        public void addInterceptors(InterceptorRegistry registry) {
        }
    
        public void addResourceHandlers(ResourceHandlerRegistry registry) {
        }
    
        public void addCorsMappings(CorsRegistry registry) {
        }
    
        public void addViewControllers(ViewControllerRegistry registry) {
        }
    
        public void configureViewResolvers(ViewResolverRegistry registry) {
        }
    
        public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {
        }
    
        public void addReturnValueHandlers(List<HandlerMethodReturnValueHandler> returnValueHandlers) {
        }
    
        public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
    ...

### 二.全盘接管SpringMVC配置 ###

1）、只需要再添加@EnableWebMvc即可,然后自定义需要添加的组件

@EnableWebMvc
    @Configuration
    public class MyMvcConfig extends WebMvcConfigurerAdapter {
        @Override
        public void addViewControllers(ViewControllerRegistry registry){
            registry.addViewController("/zhq").setViewName("success");
        }
    ...

[20190303162228597.png]: /images/20220315/dbf5c30b8c5e4adeb7eb1f03e364e7d9.png