1 新增配置類

package com.ps.learn.socketio.config;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;


/**
 * Author:ZhuShangJin
 * Date:2018/12/19
 */
@Configuration
public class WebMvcConfiguration implements WebMvcConfigurer {
    @Value("${out.resource.path}")
    private String path;


    /**
     * 訪問外部檔案配置，訪問D盤下檔案
     */
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        //配置server虛擬路徑，handler為jsp中訪問的目錄，locations為image相對應的本地路徑
        registry.addResourceHandler("/image/**").addResourceLocations(path);
    }

}
 

2、application.properties配置檔案新增外部檔案地址

out.resource.path=file:D://upload/

3 訪問

我們將1.png檔案上傳到D盤的upload資料夾後，那麼在頁面端訪問則通過：http://127.0.0.1/image/1.png