bug fix

distributed-print-business/src/main/java/com/qmth/distributed/print/business/util/PdfUtil.java

@@ -6,10 +6,10 @@ import com.itextpdf.text.pdf.PdfImportedPage;
 import com.itextpdf.text.pdf.PdfReader;
 import com.itextpdf.text.pdf.PdfStamper;
 import com.qmth.distributed.print.business.bean.dto.PdfDto;
-import com.qmth.distributed.print.business.entity.BasicAttachment;
 import com.qmth.distributed.print.business.enums.PageSizeEnum;
 import com.qmth.distributed.print.business.enums.UploadFileEnum;
 import com.qmth.distributed.print.common.contant.SystemConstant;
+import com.qmth.distributed.print.common.util.JacksonUtil;
 import org.apache.commons.io.IOUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -39,6 +39,11 @@ public class PdfUtil {
      * @param outputPath
      */
     public static String mergePdf(String[] files, String outputPath) {
+        if (Objects.nonNull(files)) {
+            log.info("files:{},outputPath:{}", JacksonUtil.parseJson(files), outputPath);
+        } else {
+            log.info("files is null");
+        }
         Document document = null;
         PdfCopy copy = null;
         PdfReader reader = null;