diff --git a/WebRoot/Excel/06856ad1-50e0-4078-af05-b9ac27f27f4f.pdf b/WebRoot/Excel/06856ad1-50e0-4078-af05-b9ac27f27f4f.pdf
index c56a17a0..cfa7ee91 100644
Binary files a/WebRoot/Excel/06856ad1-50e0-4078-af05-b9ac27f27f4f.pdf and b/WebRoot/Excel/06856ad1-50e0-4078-af05-b9ac27f27f4f.pdf differ
diff --git a/WebRoot/Excel/b712e11b-8449-4d2c-a4c2-c624b5a4810e.pdf b/WebRoot/Excel/b712e11b-8449-4d2c-a4c2-c624b5a4810e.pdf
index d2e18c05..dfa099de 100644
Binary files a/WebRoot/Excel/b712e11b-8449-4d2c-a4c2-c624b5a4810e.pdf and b/WebRoot/Excel/b712e11b-8449-4d2c-a4c2-c624b5a4810e.pdf differ
diff --git a/src/main/java/com/dsideal/QingLong/Collect/Controller/CollectController.java b/src/main/java/com/dsideal/QingLong/Collect/Controller/CollectController.java
index 7b80217b..1aa6a0eb 100644
--- a/src/main/java/com/dsideal/QingLong/Collect/Controller/CollectController.java
+++ b/src/main/java/com/dsideal/QingLong/Collect/Controller/CollectController.java
@@ -29,10 +29,7 @@ import org.apache.poi.xssf.usermodel.XSSFCell;
 import org.apache.poi.xssf.usermodel.XSSFSheet;
 import org.apache.poi.xssf.usermodel.XSSFWorkbook;
 
-import javax.servlet.http.HttpServletResponse;
 import java.io.*;
-import java.net.URISyntaxException;
-import java.net.URL;
 import java.text.ParseException;
 import java.util.*;
 
@@ -832,7 +829,7 @@ public class CollectController extends Controller {
             String pdfPath = excelPath.replace(".xlsx", ".pdf");
             AsposeUtil.xls2pdf(excelPath, pdfPath);
             OutputStream outputStream = getResponse().getOutputStream();
-            outputStream.write(CommonUtil.convertFileToByteArray(new File(pdfPath)));
+            outputStream.write(FileUtil.readBytes(pdfPath));
             outputStream.flush();
             renderNull();
         }
diff --git a/src/main/java/com/dsideal/QingLong/Util/CommonUtil.java b/src/main/java/com/dsideal/QingLong/Util/CommonUtil.java
index d48c7256..686f20ef 100644
--- a/src/main/java/com/dsideal/QingLong/Util/CommonUtil.java
+++ b/src/main/java/com/dsideal/QingLong/Util/CommonUtil.java
@@ -22,7 +22,6 @@ import java.net.URISyntaxException;
 import java.nio.charset.StandardCharsets;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
-import java.time.LocalDateTime;
 import java.util.*;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -33,17 +32,6 @@ public class CommonUtil {
 
     public static String WebRoot;
 
-    public static byte[] convertFileToByteArray(File file) {
-        byte[] fileBytes = null;
-        try (FileInputStream fis = new FileInputStream(file)) {
-            fileBytes = new byte[(int) file.length()];
-            fis.read(fileBytes);
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-        return fileBytes;
-    }
-
     //获取当前年份
     public static String getCurrentYear() {
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy");