修改填充数据空数据的bug #1274

pom.xml

@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.alibaba</groupId>
     <artifactId>easyexcel</artifactId>
-    <version>2.2.2</version>
+    <version>2.2.3</version>
     <packaging>jar</packaging>
     <name>easyexcel</name>
 

src/main/java/com/alibaba/excel/converters/NullableObjectConverter.java

-package com.alibaba.excel.converters;
-
-/**
- * When implementing <code>convertToExcelData</code> method, pay attention to the reference <code>value</code> may be
- * null
- *
- * @author JiaJu Zhuang
- **/
-public interface NullableObjectConverter<T> extends Converter<T> {
-
-}

src/main/java/com/alibaba/excel/write/executor/AbstractExcelWriteExecutor.java

@@ -10,7 +10,6 @@ import org.apache.poi.ss.usermodel.Sheet;
 import com.alibaba.excel.context.WriteContext;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.converters.ConverterKeyBuild;
-import com.alibaba.excel.converters.NullableObjectConverter;
 import com.alibaba.excel.enums.CellDataTypeEnum;
 import com.alibaba.excel.exception.ExcelDataConvertException;
 import com.alibaba.excel.metadata.CellData;
@@ -33,10 +32,11 @@ public abstract class AbstractExcelWriteExecutor implements ExcelWriteExecutor {
 
     protected CellData converterAndSet(WriteHolder currentWriteHolder, Class clazz, Cell cell, Object value,
         ExcelContentProperty excelContentProperty, Head head, Integer relativeRowIndex) {
-        boolean needTrim =
-            value != null && (value instanceof String && currentWriteHolder.globalConfiguration().getAutoTrim());
-        if (needTrim) {
-            value = ((String) value).trim();
+        if (value == null) {
+            return new CellData(CellDataTypeEnum.EMPTY);
+        }
+        if (value instanceof String && currentWriteHolder.globalConfiguration().getAutoTrim()) {
+            value = ((String)value).trim();
         }
         CellData cellData = convert(currentWriteHolder, clazz, cell, value, excelContentProperty);
         if (cellData.getFormula() != null && cellData.getFormula()) {
@@ -70,6 +70,9 @@ public abstract class AbstractExcelWriteExecutor implements ExcelWriteExecutor {
 
     protected CellData convert(WriteHolder currentWriteHolder, Class clazz, Cell cell, Object value,
         ExcelContentProperty excelContentProperty) {
+        if (value == null) {
+            return new CellData(CellDataTypeEnum.EMPTY);
+        }
         // This means that the user has defined the data.
         if (value instanceof CellData) {
             CellData cellDataValue = (CellData)value;
@@ -107,9 +110,6 @@ public abstract class AbstractExcelWriteExecutor implements ExcelWriteExecutor {
                 new CellData(CellDataTypeEnum.EMPTY), excelContentProperty,
                 "Can not find 'Converter' support class " + clazz.getSimpleName() + ".");
         }
-        if (value == null && !(converter instanceof NullableObjectConverter)) {
-            return new CellData(CellDataTypeEnum.EMPTY);
-        }
         CellData cellData;
         try {
             cellData =

src/test/java/com/alibaba/easyexcel/test/core/fill/FillDataTest.java

@@ -147,11 +147,11 @@ public class FillDataTest {
         excelWriter.finish();
 
         List<Object> list = EasyExcel.read(file).ignoreEmptyRow(false).sheet().headRowNumber(0).doReadSync();
-        Map<String, String> map0 = (Map<String, String>)list.get(0);
+        Map<String, String> map0 = (Map<String, String>) list.get(0);
         Assert.assertEquals("张三", map0.get(21));
-        Map<String, String> map27 = (Map<String, String>)list.get(27);
+        Map<String, String> map27 = (Map<String, String>) list.get(27);
         Assert.assertEquals("张三", map27.get(0));
-        Map<String, String> map29 = (Map<String, String>)list.get(29);
+        Map<String, String> map29 = (Map<String, String>) list.get(29);
         Assert.assertEquals("张三", map29.get(3));
     }
 
@@ -168,7 +168,7 @@ public class FillDataTest {
 
         List<Object> list = EasyExcel.read(file).sheet().headRowNumber(0).doReadSync();
         Assert.assertEquals(list.size(), 5L);
-        Map<String, String> map0 = (Map<String, String>)list.get(0);
+        Map<String, String> map0 = (Map<String, String>) list.get(0);
         Assert.assertEquals("张三", map0.get(2));
     }
 
@@ -185,7 +185,7 @@ public class FillDataTest {
         excelWriter.finish();
         List<Object> list = EasyExcel.read(file).sheet().headRowNumber(3).doReadSync();
         Assert.assertEquals(list.size(), 21L);
-        Map<String, String> map19 = (Map<String, String>)list.get(19);
+        Map<String, String> map19 = (Map<String, String>) list.get(19);
         Assert.assertEquals("张三", map19.get(0));
     }
 
@@ -203,6 +203,9 @@ public class FillDataTest {
             list.add(fillData);
             fillData.setName("张三");
             fillData.setNumber(5.2);
+            if (i == 5) {
+                fillData.setName(null);
+            }
         }
         return list;
     }

update.md

+# 2.2.3
+* 修改填充数据空数据的bug  [Issue #1274](https://github.com/alibaba/easyexcel/issues/1274)
+* 回退自定义转换器入参为空
+
 # 2.2.2
 * 修改`sheet`事件未调用的bug