实现对重复文件自动重命名

pom.xml

@@ -66,6 +66,12 @@
 			<groupId>org.projectlombok</groupId>
 			<artifactId>lombok</artifactId>
 		</dependency>
+
+		<dependency>
+			<groupId>commons-io</groupId>
+			<artifactId>commons-io</artifactId>
+            <version>2.6</version>
+		</dependency>
     </dependencies>
 
 

src/main/java/com/fjy/spring/controller/UpLoadController.java

@@ -9,6 +9,7 @@ import com.fjy.spring.service.FileService;
 import com.fjy.spring.service.LogService;
 import com.fjy.spring.untils.FormatFileSizeUtil;
 import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.io.FileUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.*;
@@ -175,13 +176,23 @@ public class UpLoadController {
                 pathname = uploadUrl + filename;
                 tbFile.setColfilename(filename);
             }
+
             File targetFile = new File(pathname);
+            //若文件已存在则自动重命名
+            if (targetFile.exists()){
+                File mvfile = new File(pathname+".bak");
+                try {
+                    FileUtils.moveFile(targetFile, mvfile);
+                    log.info("源文件："+targetFile.getName()+"已重命名为："+ mvfile.getName());
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
 
             log.info("文件上传到: " + uploadUrl + filename);
             log.info("文件大小: " + new FormatFileSizeUtil().GetFileSize(file.getSize()));
             log.info("文件名: " + filename);
 
-
             tbFile.setColfilesize(new FormatFileSizeUtil().GetFileSize(file.getSize()));
 
             tbFile.setColtime(dateNowStr);