spring boot 配置拦截器及过滤静态资源

墨蓝 2022-04-17 02:41 548阅读 0赞

import org.springframework.context.annotation.Configuration;
    import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
    import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
    import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
    
    @Configuration
    public class SessionConfiguraction implements WebMvcConfigurer {
        //配置拦截器
        public void addInterceptors(InterceptorRegistry registry){
            //registry.addInterceptor此方法添加拦截器
            registry.addInterceptor(new SessionInterceptor()).addPathPatterns("/**")
                    .excludePathPatterns("/static/**","/user/login/**","/login/**","/welcome/**","/error/**","/lib/layui/**");//需要配置2：----------- 告知拦截器：/static/admin/** 与 /static/user/** 不需要拦截 （配置的是 路径）
        }
    
        /**
         * 添加静态资源文件，外部可以直接访问地址
         * @param registry
         */
        @Override
        public void addResourceHandlers(ResourceHandlerRegistry registry) {
            //需要配置1：----------- 需要告知系统，这是要被当成静态文件的！
            //第一个方法设置访问路径前缀，第二个方法设置资源路径
            registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/");
        }
    
    }

import org.springframework.web.servlet.HandlerInterceptor;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    public class SessionInterceptor implements HandlerInterceptor {
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object o) throws  Exception{
            System.out.println(request.getRequestURI());
            Object obj = request.getSession().getAttribute("session_user");
            if (request.getRequestURI().equals("/login")){
                return true;
            }
            if (obj == null){
                response.sendRedirect("/login");
                return  false;
            }
            return true;
        }
    }

上面增加了，登录拦截 如果只是过滤静态资源

import org.springframework.context.annotation.Configuration;
    import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
    import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
    import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
    
    @Configuration
    public class AllWebAppConfigurer extends WebMvcConfigurationSupport {
        @Override
        public void addInterceptors(InterceptorRegistry registry) {
            // 多个拦截器组成一个拦截器链
            registry.addInterceptor(new JsonpInterceptor()).addPathPatterns("/**");
            super.addInterceptors(registry);
        }
    
        /**
         * 添加静态资源文件，外部可以直接访问地址
         * @param registry
         */
        @Override
        public void addResourceHandlers(ResourceHandlerRegistry registry) {
            //需要配置1：----------- 需要告知系统，这是要被当成静态文件的！
            //第一个方法设置访问路径前缀，第二个方法设置资源路径
            registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/");
        }
    }