* 提高类型转换兼容性 [Issue #2443](https://github.com/alibaba/easyexcel/issues/2443)

easyexcel-core/src/main/java/com/alibaba/excel/util/NumberUtils.java

@@ -75,7 +75,7 @@ public class NumberUtils {
      */
     public static Short parseShort(String string, ExcelContentProperty contentProperty) throws ParseException {
         if (!hasFormat(contentProperty)) {
-            return Short.valueOf(string);
+            return new BigDecimal(string).shortValue();
         }
         return parse(string, contentProperty).shortValue();
     }
@@ -89,7 +89,7 @@ public class NumberUtils {
      */
     public static Long parseLong(String string, ExcelContentProperty contentProperty) throws ParseException {
         if (!hasFormat(contentProperty)) {
-            return Long.valueOf(string);
+            return new BigDecimal(string).longValue();
         }
         return parse(string, contentProperty).longValue();
     }
@@ -97,26 +97,13 @@ public class NumberUtils {
     /**
      * parse Integer from string
      *
-     * @param string An integer read in string format
+     * @param string          An integer read in string format
      * @param contentProperty Properties of the content read in
      * @return An integer converted from a string
      */
     public static Integer parseInteger(String string, ExcelContentProperty contentProperty) throws ParseException {
         if (!hasFormat(contentProperty)) {
-            // CS304 Issue link: https://github.com/alibaba/easyexcel/issues/2443
-            int stringLength = string.length();
-            if(stringLength>0){
-                int pointer = stringLength;
-                for(int i=0;i<stringLength;i++){
-                    if(string.charAt(i)=='.'){
-                        pointer = i;
-                        break;
-                    }
-                }
-                string = string.substring(0,pointer);
-            }
-
-            return Integer.valueOf(string);
+            return new BigDecimal(string).intValue();
         }
         return parse(string, contentProperty).intValue();
     }
@@ -130,7 +117,7 @@ public class NumberUtils {
      */
     public static Float parseFloat(String string, ExcelContentProperty contentProperty) throws ParseException {
         if (!hasFormat(contentProperty)) {
-            return Float.valueOf(string);
+            return new BigDecimal(string).floatValue();
         }
         return parse(string, contentProperty).floatValue();
     }
@@ -159,7 +146,7 @@ public class NumberUtils {
      */
     public static Byte parseByte(String string, ExcelContentProperty contentProperty) throws ParseException {
         if (!hasFormat(contentProperty)) {
-            return Byte.valueOf(string);
+            return new BigDecimal(string).byteValue();
         }
         return parse(string, contentProperty).byteValue();
     }
@@ -173,7 +160,7 @@ public class NumberUtils {
      */
     public static Double parseDouble(String string, ExcelContentProperty contentProperty) throws ParseException {
         if (!hasFormat(contentProperty)) {
-            return Double.valueOf(string);
+            return new BigDecimal(string).doubleValue();
         }
         return parse(string, contentProperty).doubleValue();
     }

update.md

@@ -6,6 +6,7 @@
 * 修复`filed`拼接错误 [Issue #2390](https://github.com/alibaba/easyexcel/issues/2390)
 * 修复`BigIntegerStringConverter`无效的bug [Issue #2325](https://github.com/alibaba/easyexcel/issues/2325)
 * 修复03版本无法读取到公式格式的bug [Issue #2444](https://github.com/alibaba/easyexcel/issues/2444)
+* 提高类型转换兼容性 [Issue #2443](https://github.com/alibaba/easyexcel/issues/2443)
 
 
 # 3.0.5