需求: 多个房管局房源系统都需要展示户型图, 考虑到图片资源过大(房源共计8w多套), 肯定不能每个系统都复制一份，所以决定将系统部署至同一台服务器，通过一些设置从而共用磁盘图片
import com.app.common.service.DataDictService; import com.app.ftxh.model.Project; import com.app.ftxh.service.ProjectService; import org.apache.commons.collections.CollectionUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.context.annotation.Configuration; import org.springframework.web.servlet.config.annotation.EnableWebMvc; import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; import java.util.List; /** * 建立服务器磁盘虚拟路径 用于图片绝对路径展示 * Created by M·JJ on 2020-07-09 */ @Configuration @EnableWebMvc public class WebAppConfig extends WebMvcConfigurerAdapter { private static final Logger log = LoggerFactory.getLogger(WebAppConfig.class); /** * 添加一些虚拟路径的映射 * 对文件的路径进行配置, 创建一个虚拟路径/housePic/** ， * 即只要在< img src="/housePic/picName.jpg" />即可将本地的d:/pic/picName.jpg展示 * * @param registry */ @Override public void addResourceHandlers(ResourceHandlerRegistry registry) { log.info("静态资源配置类触发开始"); ProjectService projectService = new ApplicationContextProvider().getBean(ProjectService.class); DataDictService dataDictService = new ApplicationContextProvider().getBean(DataDictService.class); //获取数据字典中的本地图片路径 String prefRealPath = dataDictService.getMapByParentAttributeNameForName("图片路径配置").get("图片路径");//图片文件前置通用路径 List<Project> projectList = projectService.listAll(); if (CollectionUtils.isNotEmpty(projectList)) { for (Project project : projectList) { String projectCode = project.getProjectCode(); String realPath = prefRealPath + projectCode + "/"; registry.addResourceHandler("/housePic/" + projectCode + "/**").addResourceLocations("file:" + realPath); } } log.info("静态资源配置类触发成功"); } }