修改文件上传响应结果文件名后缀点丢失

cloud-aliyun-service/src/main/java/com/yizhi/aliyun/application/controller/FileUploadController.java

 package com.yizhi.aliyun.application.controller;
 
+import cn.hutool.core.util.StrUtil;
 import com.yizhi.aliyun.application.util.PropertiesUtil;
 import com.yizhi.core.application.file.util.MinioTools;
 import com.yizhi.util.application.domain.Response;
 import lombok.extern.slf4j.Slf4j;
-import org.apache.commons.lang3.time.DateFormatUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
-import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.context.request.RequestContextHolder;
 import org.springframework.web.context.request.ServletRequestAttributes;
 import org.springframework.web.multipart.MultipartFile;
 import org.springframework.web.multipart.MultipartHttpServletRequest;
 import org.springframework.web.multipart.support.StandardServletMultipartResolver;
-import org.springframework.web.servlet.support.ServletUriComponentsBuilder;
 
 import javax.servlet.http.HttpServletRequest;
 import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.util.Date;
 
 @RestController
 @Slf4j
@@ -45,12 +41,15 @@ public class FileUploadController {
             MultipartHttpServletRequest multipartRequest = resolver.resolveMultipart(httpRequest);
             MultipartFile file = multipartRequest.getFile("file");
             String bucketName =propertiesUtil.getPublicParam().get("ossdir");;
-            String name = file.getOriginalFilename();
-            String[] fileNames = name.split("\\.");
-            name = fileNames[0] + System.currentTimeMillis() + fileNames[1];
-            log.info("=============文件大小：{}===========",file.getSize());
-            minioTools.uplodFile(bucketName,name,file.getInputStream());
-            return Response.ok(pcHostUrl+"/api/v1/buckets/"+bucketName+"/objects/download/?preview=true&prefix="+name);
+            String fileName = file.getOriginalFilename();
+            if (StrUtil.isNotBlank(fileName)) {
+                fileName = fileName.replaceFirst("(\\.\\w+)$", "_" + System.currentTimeMillis() + "$1");
+            } else {
+                fileName = String.format("temp_%s.jpg", System.currentTimeMillis());
+            }
+            log.info("============={} -> 文件大小：{}===========",fileName, file.getSize());
+            minioTools.uplodFile(bucketName,fileName,file.getInputStream());
+            return Response.ok(pcHostUrl+"/api/v1/buckets/"+bucketName+"/objects/download/?preview=true&prefix="+fileName);
         } catch (IOException ex) {
             return Response.fail("Could not upload the file ");
         }