From dbca691746395d928a6f4ff1f2d8c49df8a53a90 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: Sat, 12 Feb 2022 14:23:11 +0800
Subject: [PATCH] 优化代码

---
 ruoyi-modules/ruoyi-file/src/main/java/com/ruoyi/file/utils/FileUploadUtils.java |   13 +++++--------
 1 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/ruoyi-modules/ruoyi-file/src/main/java/com/ruoyi/file/utils/FileUploadUtils.java b/ruoyi-modules/ruoyi-file/src/main/java/com/ruoyi/file/utils/FileUploadUtils.java
index 5e87091..662b641 100644
--- a/ruoyi-modules/ruoyi-file/src/main/java/com/ruoyi/file/utils/FileUploadUtils.java
+++ b/ruoyi-modules/ruoyi-file/src/main/java/com/ruoyi/file/utils/FileUploadUtils.java
@@ -2,6 +2,7 @@
 
 import java.io.File;
 import java.io.IOException;
+import java.util.Objects;
 import org.apache.commons.io.FilenameUtils;
 import org.springframework.web.multipart.MultipartFile;
 import com.ruoyi.common.core.exception.file.FileNameLengthLimitExceededException;
@@ -65,7 +66,7 @@
             throws FileSizeLimitExceededException, IOException, FileNameLengthLimitExceededException,
             InvalidExtensionException
     {
-        int fileNamelength = file.getOriginalFilename().length();
+        int fileNamelength = Objects.requireNonNull(file.getOriginalFilename()).length();
         if (fileNamelength > FileUploadUtils.DEFAULT_FILE_NAME_LENGTH)
         {
             throw new FileNameLengthLimitExceededException(FileUploadUtils.DEFAULT_FILE_NAME_LENGTH);
@@ -77,8 +78,7 @@
 
         File desc = getAbsoluteFile(baseDir, fileName);
         file.transferTo(desc);
-        String pathFileName = getPathFileName(fileName);
-        return pathFileName;
+        return getPathFileName(fileName);
     }
 
     /**
@@ -86,10 +86,7 @@
      */
     public static final String extractFilename(MultipartFile file)
     {
-        String fileName = file.getOriginalFilename();
-        String extension = getExtension(file);
-        fileName = DateUtils.datePath() + "/" + IdUtils.fastUUID() + "." + extension;
-        return fileName;
+        return DateUtils.datePath() + "/" + IdUtils.fastUUID() + "." + getExtension(file);
     }
 
     private static final File getAbsoluteFile(String uploadDir, String fileName) throws IOException
@@ -189,7 +186,7 @@
         String extension = FilenameUtils.getExtension(file.getOriginalFilename());
         if (StringUtils.isEmpty(extension))
         {
-            extension = MimeTypeUtils.getExtension(file.getContentType());
+            extension = MimeTypeUtils.getExtension(Objects.requireNonNull(file.getContentType()));
         }
         return extension;
     }

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