修改实体位置

yzg-util-base/src/main/java/com/yanzuoguang/util/helper/CalcHelper.java

@@ -38,6 +38,28 @@ public class CalcHelper {
     }
 
 
+    /**
+     * 获取excel列序号
+     *
+     * @param columnName
+     * @return
+     */
+    public static final int getExcelIndex(String columnName) {
+        columnName = columnName.toLowerCase();
+        if (!columnName.matches("^[a-z]+$")) {
+            throw new RuntimeException("变量名" + columnName + "不支持");
+        }
+        // 从名称转换列序号
+        int formulaColumnIndex = 0;
+        char[] chs = new char[columnName.length()];
+        columnName.getChars(0, columnName.length() , chs, 0);
+        for (int i = 0; i < chs.length; i++) {
+            formulaColumnIndex = formulaColumnIndex * 26 + (chs[i] - 'a' + 1);
+        }
+        formulaColumnIndex--;
+        return formulaColumnIndex;
+    }
+
     /**
      * 计算公式
      *

yzg-util-base/src/test/java/helper/TestCalcHelper.java

@@ -43,4 +43,12 @@ public class TestCalcHelper {
             }
         }));
     }
+
+    @Test
+    public void test2() {
+        System.out.println(CalcHelper.getExcelIndex("aa"));
+        System.out.println(CalcHelper.getExcelIndex("ba"));
+        System.out.println(CalcHelper.getExcelIndex("ab"));
+        System.out.println(CalcHelper.getExcelIndex("a"));
+    }
 }

yzg-util-base/src/test/java/helper/非法身份证.csv

+aa
+
 王蕾
 陈俊
 06151196