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靜態資源映射

rem pos ada exceptio gist figure setview throw https

靜態資源需要直接訪問時,可以通過在配置文件中重寫addResourceHandlers方法來實現

package com.zhl.practice.config;

import com.zhl.practice.MyInteceptor.DemoInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry; import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView; /** * @author Holley * @Description 如果訪問的靜態文件不是以下路徑則會被攔截 * @create 2018-09-28 11:05 **/ @Configuration @EnableWebMvc public class MvcConfig extends WebMvcConfigurerAdapter { /** * @Author holley * @Description 設置MVC的視圖解析 * @Date 2018/9/28 11:29 * @Param [] *
@return org.springframework.web.servlet.view.InternalResourceViewResolver */ @Bean public InternalResourceViewResolver viewResolver(){ InternalResourceViewResolver viewResolver = new InternalResourceViewResolver(); viewResolver.setPrefix("/WEB-INF/classes/views"); viewResolver.setSuffix(".jsp"); viewResolver.setViewClass(JstlView.class); return viewResolver; } /** * @Author holley * @Description 設置靜態資源文件的映射 * @Date 2018/9/28 11:34 * @Param [registry] * @return void */ @Override public void addResourceHandlers(ResourceHandlerRegistry registry) { // addResourceHandler 設置對外暴露的訪問路徑 ,addResourceLocations 設置的是文件放置的目錄 registry.addResourceHandler("/test/**") .addResourceLocations("classpath:/tset/"); } /** * @Author holley * @Description java配置bean * @Date 2018/9/28 11:49 * @Param [] * @return com.zhl.practice.MyInteceptor.DemoInterceptor */ @Bean public DemoInterceptor demoInterceptor(){ return new DemoInterceptor(); } /** * @Author holley * @Description 設置攔截器(調用自定義攔截器) * @Date 2018/9/28 11:35 * @Param [registry] * @return void */ @Override public void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor(demoInterceptor()); } }

自定義攔截器

package com.zhl.practice.MyInteceptor;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author Holley
 * @Description 自定義MVC攔截器
 * @create 2018-09-28 11:38
 **/
public class DemoInterceptor extends HandlerInterceptorAdapter{

    /**
      * @Author holley
      * @Description 重寫前置攔截
      * @Date 2018/9/28 11:40
      * @Param [request, response, handler]
      * @return boolean
      */
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        long startTime = System.currentTimeMillis();
        request.setAttribute("startTime",startTime);
        return true;
    }

    /**
     * @Author holley
     * @Description 重寫後置攔截
     * @Date 2018/9/28 11:40
     * @Param [request, response, handler]
     * @return boolean
     */
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        long startTime = (Long)request.getAttribute("startTime");
        request.removeAttribute("startTime");
        long endTime = System.currentTimeMillis();
        System.out.println("本次請求處理時間為:"+(endTime - startTime) + "ms");
    }
}

靜態資源映射