fix upload part merge add log

xueyi-common/xueyi-common-core/src/main/java/com/xueyi/common/core/utils/file/FileUtil.java

@@ -2,6 +2,8 @@ package com.xueyi.common.core.utils.file;
 
 import com.xueyi.common.core.utils.core.StrUtil;
 import org.apache.commons.lang3.ArrayUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
@@ -22,6 +24,7 @@ import java.nio.charset.StandardCharsets;
  */
 public class FileUtil extends cn.hutool.core.io.FileUtil {
 
+    private static Logger logger = LoggerFactory.getLogger(FileUtil.class);
     /**
      * 字符常量：斜杠 {@code '/'}
      */
@@ -235,6 +238,7 @@ public class FileUtil extends cn.hutool.core.io.FileUtil {
         try {
             fos = new FileOutputStream(destFile);
             for (File file : files) {
+                logger.info("merge file:{},fileSize:{}", file.getAbsolutePath(),FileUtil.size(file));
                 FileInputStream fis = new FileInputStream(file);
                 byte[] bytes = new byte[1024];
                 int len = 0;