<feat>：修改

1、工具类

code/base/nckd-jimin-base-helper/src/main/java/nckd/base/helper/CommonHelperUtils.java

@@ -72,7 +72,7 @@ public class CommonHelperUtils {
     }
 
     /**
-     *
+     * 返回日期字符格式
      * @param date
      * @param pattern
      * @return
@@ -82,6 +82,21 @@ public class CommonHelperUtils {
         return sdf.format(date);
     }
 
+    /**
+     *
+     * @param dateString
+     * @param pattern
+     * @return
+     */
+    public static Date getDateStringFormat(String dateString, String pattern){
+        SimpleDateFormat sdf = new SimpleDateFormat(pattern);
+        try {
+            return sdf.parse(dateString);
+        } catch (ParseException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
     /**
      * 格式化BigDecimal对象
      * @param objValue