SpringBoot图片上传和访问路径映射

 package com.prereadweb.utils; import java.io.File; import java.io.FileOutputStream; import java.util.UUID; /** * @Description: 文件工具类 * @author: Yangxf * @date: 2019/4/17 16:06 */ public class FileTool { /** * @Function: 图片上传 * @author:  YangXueFeng * @Date:   2019/4/18 14:13 */ public static void uploadFiles(byte[] file, String filePath, String fileName) throws Exception { File targetFile = new File(filePath); if (!targetFile.exists()) { targetFile.mkdirs(); } FileOutputStream out = new FileOutputStream(filePath + fileName); out.write(file); out.flush(); out.close(); } /** * @Function: 创建新的文件名 * @author:  YangXueFeng * @Date:   2019/4/17 17:57 */ public static String renameToUUID(String fileName) { return UUID.randomUUID() + "." + fileName.substring(fileName.lastIndexOf(".") + 1); } }

 /** * @Function: 用户图片上传 * @author:  Yangxf * @Date:   2019/4/17 15:42 */ @PostMapping("/postfile") public Object fileUpload(@RequestParam(value = "userImg", required = false) MultipartFile file, @RequestParam(value = "userId", required = false) Long userId) { return personalService.fileUpload(file, userId); }

 /** * @Function: 用户头像上传 * @author:  YangXf * @Date:   2019/4/17 15:41 * @param:  file 图片 * @param:  userId 用户ID * @return: map */ @Override public Map fileUpload(MultipartFile file, Long userId) { Map map = new HashMap<>(); if (Util.isEmpty(file)) { System.out.println("文件为空空"); map.put("code", UserStatusEnum.EMPTY.intKey()); map.put("msg", UserStatusEnum.EMPTY.value()); return map; } UserEntity user = userMapper.fetchUser(userId); if(Util.isEmpty(user)){ map.put("code", UserStatusEnum.USER_NOT_EXISTENCE.intKey()); map.put("msg", UserStatusEnum.USER_NOT_EXISTENCE.value()); return map; } String fileName = file.getOriginalFilename(); fileName = FileTool.renameToUUID(fileName); try { FileTool.uploadFiles(file.getBytes(), uploadConfig.getUploadPath(), fileName); } catch (Exception e) { } if (Util.isEmpty(fileName)) { map.put("code", UserStatusEnum.USER_NOT_EXISTENCE.intKey()); map.put("msg", UserStatusEnum.USER_NOT_EXISTENCE.value()); return map; } Map returnMap = new HashMap<>(); String url = "/static/" + fileName; updateUrl(userId, url); returnMap.put("imageUrl", url); map.put("code", UserStatusEnum.SUCCESS.intKey()); map.put("msg", UserStatusEnum.SUCCESS.value()); map.put("data", returnMap); return map; }

 preread: #文件上传目录（注意Linux和Windows上的目录结构不同） uploadPath: E:/image/

 package com.prereadweb.config.upload; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.stereotype.Component; /** * @Description: 文件上传路径配置 * @author: Yangxf * @date: 2019/4/17 17:50 */ @Component @ConfigurationProperties(prefix="preread") public class PreReadUploadConfig { //上传路径 private String uploadPath; public String getUploadPath() { return uploadPath; } public void setUploadPath(String uploadPath) { this.uploadPath = uploadPath; } }

 package com.prereadweb.config.upload; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.ComponentScan; import org.springframework.context.annotation.Configuration; import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; /** * @Description: 自定义资源映射 * 
 *   设置虚拟路径，访问绝对路径下资源 * 
 * @author: Yangxf * @date: 2019/4/17 18:17 */ @ComponentScan @Configuration public class WebConfigurer extends WebMvcConfigurerAdapter { @Autowired PreReadUploadConfig uploadConfig; @Override public void addResourceHandlers(ResourceHandlerRegistry registry) { registry.addResourceHandler("/static/**").addResourceLocations("file:///"+uploadConfig.getUploadPath()); } }

   org.springframework.boot  spring-boot-configuration-processor  true