测试完成，删除部分控制台打印信息

src/main/java/com/wangxiaolu/promotion/common/excel/ReadExcelUtils.java

@@ -65,7 +65,6 @@ public class ReadExcelUtils {
         row = sheet.getRow(0);
         // 标题总列数
         int colNum = row.getPhysicalNumberOfCells();
-        System.out.println("colNum:" + colNum);
         String[] title = new String[colNum];
         for (int i = 0; i < colNum; i++) {
             // title[i] = getStringCellValue(row.getCell((short) i));

src/main/java/com/wangxiaolu/promotion/common/util/MD5Utils.java

@@ -36,7 +36,6 @@ public class MD5Utils {
                 return hex(digest);
             } catch (Exception e) {
                 e.printStackTrace();
-                System.out.println(e.toString());
                 return "";
             }
         }
@@ -95,7 +94,7 @@ public class MD5Utils {
 
         public static void main(String[] args) {
             // 原密码
-            String plaintext = "wxl000368";
+            String plaintext = "wxl000680";
 
             // 获取加盐后的MD5值
             String ciphertext = MD5Utils.getSaltMD5(plaintext);