Spring4MVC 基本配置

今天药忘吃喽~ 2022-07-16 08:50 173阅读 0赞

SpringMVC的定制配置需要继承一个WebMvcConfigurerAdapter类，重写这个类的方法，完成常用配置。

@Configuration
    @EnableWebMvc
    @ComponentScan("com.netant.spring4")
    public class WebMvcConfig extends WebMvcConfigurerAdapter{

**视图解析器**

/** 视图解析器 */
        @Bean
        public InternalResourceViewResolver viewResolver(){
            InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
            viewResolver.setPrefix("/WEB-INF/classes/views/"); // 运行时的目录结构
            viewResolver.setSuffix(".jsp");
            viewResolver.setViewClass(JstlView.class);
            return viewResolver;
        }

**静态资源映射**

/** 静态资源映射 */
        @Override
        public void addResourceHandlers(ResourceHandlerRegistry registry) {
            registry.addResourceHandler("/assets/**") // 对外暴露的访问路径
                    .addResourceLocations("classpath:/assets/"); // 文件放置 的目录
        }

![这里写图片描述][20161012125728586]

**拦截器**

public class MyInterceptor implements HandlerInterceptor { 
    
        @Override
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
                throws Exception {
            // TODO Auto-generated method stub
            return false;
        }
    
        @Override
        public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
                ModelAndView modelAndView) throws Exception {
            // TODO Auto-generated method stub
    
        }
    
        @Override
        public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
                throws Exception {
            // TODO Auto-generated method stub
    
        }
    
    }

/** 拦截器 */
        @Bean 
        public MyInterceptor myInterceptor(){ // 配置拦截器的Bean
            return new MyInterceptor();
        }
    
        @Override
        public void addInterceptors(InterceptorRegistry registry) { // 注册拦截器
            registry.addInterceptor(myInterceptor());
        }

**WebMvcConfig.java 完整的配置类(还不全，后期补充)**

@Configuration
    @EnableWebMvc
    @ComponentScan("com.netant.spring4")
    public class WebMvcConfig extends WebMvcConfigurerAdapter{ 
    
        /** 视图解析器 */
        @Bean
        public InternalResourceViewResolver viewResolver(){
            InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
            viewResolver.setPrefix("/WEB-INF/classes/views/"); // 运行时的目录结构
            viewResolver.setSuffix(".jsp");
            viewResolver.setViewClass(JstlView.class);
            return viewResolver;
        }
    
        /** 静态资源映射 */
        @Override
        public void addResourceHandlers(ResourceHandlerRegistry registry) {
            registry.addResourceHandler("/assets/**") // 对外暴露的访问路径
                    .addResourceLocations("classpath:/assets/"); // 文件放置 的目录
        }
    
        /** 拦截器 */
        @Bean 
        public MyInterceptor myInterceptor(){ // 配置拦截器的Bean
            return new MyInterceptor();
        }
    
        @Override
        public void addInterceptors(InterceptorRegistry registry) { // 注册拦截器
            registry.addInterceptor(myInterceptor());
        }
    
    }

[20161012125728586]: /images/20220716/64b2e9cd44b84bff8f5acfbc13d6e4d4.png