修复头和数据对象不一致会覆盖的问题 [Issue #1870]

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

@@ -24,20 +24,11 @@ import com.alibaba.excel.write.metadata.RowData;
 import com.alibaba.excel.write.metadata.holder.WriteHolder;
 import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
 import com.alibaba.excel.write.metadata.holder.WriteWorkbookHolder;
+
 import net.sf.cglib.beans.BeanMap;
 import org.apache.commons.collections4.CollectionUtils;
 import org.apache.poi.ss.usermodel.Cell;
 import org.apache.poi.ss.usermodel.Row;
-import org.apache.poi.ss.usermodel.Cell;
-import org.apache.poi.ss.usermodel.Row;
-
-import java.lang.reflect.Field;
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.TreeMap;
 
 /**
  * Add the data into excel
@@ -70,7 +61,7 @@ public class ExcelWriteAddExecutor extends AbstractExcelWriteExecutor {
     }
 
     private void addOneRowOfDataToExcel(Object oneRowData, int n, int relativeRowIndex,
-                                        Map<Integer, Field> sortedAllFiledMap) {
+        Map<Integer, Field> sortedAllFiledMap) {
         if (oneRowData == null) {
             return;
         }
@@ -94,14 +85,15 @@ public class ExcelWriteAddExecutor extends AbstractExcelWriteExecutor {
         }
         Map<Integer, Head> headMap = writeContext.currentWriteHolder().excelWriteHeadProperty().getHeadMap();
         int dataIndex = 0;
-        int cellIndex = 0;
+        int maxCellIndex = -1;
         for (Map.Entry<Integer, Head> entry : headMap.entrySet()) {
             if (dataIndex >= oneRowData.size()) {
                 return;
             }
-            cellIndex = entry.getKey();
+            int cellIndex = entry.getKey();
             Head head = entry.getValue();
             doAddBasicTypeToExcel(oneRowData, head, row, relativeRowIndex, dataIndex++, cellIndex);
+            maxCellIndex = Math.max(maxCellIndex, cellIndex);
         }
         // Finish
         if (dataIndex >= oneRowData.size()) {
@@ -109,17 +101,16 @@ public class ExcelWriteAddExecutor extends AbstractExcelWriteExecutor {
         }
         // fix https://github.com/alibaba/easyexcel/issues/1702
         // If there is data, it is written to the next cell
-        if (dataIndex != 0) {
+        maxCellIndex++;
-            cellIndex++;
+
-        }
         int size = oneRowData.size() - dataIndex;
         for (int i = 0; i < size; i++) {
-            doAddBasicTypeToExcel(oneRowData, null, row, relativeRowIndex, dataIndex++, cellIndex++);
+            doAddBasicTypeToExcel(oneRowData, null, row, relativeRowIndex, dataIndex++, maxCellIndex++);
         }
     }
 
     private void doAddBasicTypeToExcel(RowData oneRowData, Head head, Row row, int relativeRowIndex, int dataIndex,
-                                       int cellIndex) {
+        int cellIndex) {
         WriteHandlerUtils.beforeCellCreate(writeContext, row, head, cellIndex, relativeRowIndex, Boolean.FALSE);
         Cell cell = WorkBookUtil.createCell(row, cellIndex);
         WriteHandlerUtils.afterCellCreate(writeContext, cell, head, relativeRowIndex, Boolean.FALSE);
@@ -130,18 +121,18 @@ public class ExcelWriteAddExecutor extends AbstractExcelWriteExecutor {
     }
 
     private void addJavaObjectToExcel(Object oneRowData, Row row, int relativeRowIndex,
-                                      Map<Integer, Field> sortedAllFiledMap) {
+        Map<Integer, Field> sortedAllFiledMap) {
         WriteHolder currentWriteHolder = writeContext.currentWriteHolder();
         BeanMap beanMap = BeanMapUtils.create(oneRowData);
         Set<String> beanMapHandledSet = new HashSet<String>();
-        int cellIndex;
+        int maxCellIndex = -1;
         // If it's a class it needs to be cast by type
         if (HeadKindEnum.CLASS.equals(writeContext.currentWriteHolder().excelWriteHeadProperty().getHeadKind())) {
             Map<Integer, Head> headMap = writeContext.currentWriteHolder().excelWriteHeadProperty().getHeadMap();
             Map<Integer, ExcelContentProperty> contentPropertyMap =
                 writeContext.currentWriteHolder().excelWriteHeadProperty().getContentPropertyMap();
             for (Map.Entry<Integer, ExcelContentProperty> entry : contentPropertyMap.entrySet()) {
-                cellIndex = entry.getKey();
+                int cellIndex = entry.getKey();
                 ExcelContentProperty excelContentProperty = entry.getValue();
                 String name = FieldUtils.resolveCglibFieldName(excelContentProperty.getField());
                 if (!beanMap.containsKey(name)) {
@@ -157,13 +148,15 @@ public class ExcelWriteAddExecutor extends AbstractExcelWriteExecutor {
                     null, cell, value, excelContentProperty, head, relativeRowIndex);
                 WriteHandlerUtils.afterCellDispose(writeContext, cellData, cell, head, relativeRowIndex, Boolean.FALSE);
                 beanMapHandledSet.add(name);
+                maxCellIndex = Math.max(maxCellIndex, cellIndex);
             }
-            cellIndex++;
         }
         // Finish
         if (beanMapHandledSet.size() == beanMap.size()) {
             return;
         }
+        maxCellIndex++;
+
         Map<String, Field> ignoreMap = writeContext.currentWriteHolder().excelWriteHeadProperty().getIgnoreMap();
         initSortedAllFiledMapFieldList(oneRowData.getClass(), sortedAllFiledMap);
         for (Map.Entry<Integer, Field> entry : sortedAllFiledMap.entrySet()) {
@@ -175,8 +168,10 @@ public class ExcelWriteAddExecutor extends AbstractExcelWriteExecutor {
                 continue;
             }
             Object value = beanMap.get(filedName);
-            WriteHandlerUtils.beforeCellCreate(writeContext, row, null, cellIndex, relativeRowIndex, Boolean.FALSE);
+            WriteHandlerUtils.beforeCellCreate(writeContext, row, null, maxCellIndex, relativeRowIndex, Boolean.FALSE);
-            Cell cell = WorkBookUtil.createCell(row, cellIndex++);
+            // fix https://github.com/alibaba/easyexcel/issues/1870
+            // If there is data, it is written to the next cell
+            Cell cell = WorkBookUtil.createCell(row, maxCellIndex++);
             WriteHandlerUtils.afterCellCreate(writeContext, cell, null, relativeRowIndex, Boolean.FALSE);
             WriteCellData<?> cellData = converterAndSet(currentWriteHolder,
                 FieldUtils.getFieldClass(beanMap, filedName), null, cell, value, null, null, relativeRowIndex);

src/test/java/com/alibaba/easyexcel/test/temp/WriteV33Test.java

@@ -1,20 +1,23 @@
 package com.alibaba.easyexcel.test.temp;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 
-import org.junit.Ignore;
-import org.junit.Test;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import com.alibaba.easyexcel.test.demo.write.DemoData;
+import com.alibaba.easyexcel.test.temp.data.DataType;
+import com.alibaba.easyexcel.test.temp.data.HeadType;
 import com.alibaba.easyexcel.test.util.TestFileUtil;
 import com.alibaba.excel.EasyExcel;
 import com.alibaba.excel.ExcelWriter;
 import com.alibaba.excel.write.merge.OnceAbsoluteMergeStrategy;
 import com.alibaba.excel.write.metadata.WriteSheet;
 
+import org.junit.Ignore;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 /**
  * 临时测试
  *
@@ -32,7 +35,8 @@ public class WriteV33Test {
         OnceAbsoluteMergeStrategy onceAbsoluteMergeStrategy = new OnceAbsoluteMergeStrategy(2, 2, 0, 1);
 
         // 这里 指定文件
-        ExcelWriter excelWriter = EasyExcel.write(fileName, DemoData.class).registerWriteHandler(onceAbsoluteMergeStrategy).build();
+        ExcelWriter excelWriter = EasyExcel.write(fileName, DemoData.class).registerWriteHandler(
+            onceAbsoluteMergeStrategy).build();
         WriteSheet writeSheet1 = EasyExcel.writerSheet(1, "模板1").build();
         WriteSheet writeSheet2 = EasyExcel.writerSheet(2, "模板2").build();
         WriteSheet writeSheet3 = EasyExcel.writerSheet(3, "模板3").build();
@@ -55,4 +59,25 @@ public class WriteV33Test {
         return list;
     }
 
+    @Test
+    public void test33() throws Exception {
+        List<DataType> data = getData();
+        String fileName = TestFileUtil.getPath() + "repeatedWrite" + System.currentTimeMillis() + ".xlsx";
+
+        ExcelWriter excelWriter = null;
+        excelWriter = EasyExcel.write(fileName).build();
+        WriteSheet writeSheet = EasyExcel.writerSheet(1, "test")
+            .head(HeadType.class)
+            .build();
+        excelWriter.write(data, writeSheet);
+        excelWriter.finish();
+    }
+
+    private List<DataType> getData() {
+        DataType vo = new DataType();
+        vo.setId(738);
+        vo.setFirstRemark("1222");
+        vo.setSecRemark("22222");
+        return Collections.singletonList(vo);
+    }
 }

src/test/java/com/alibaba/easyexcel/test/temp/data/DataType.java

@@ -0,0 +1,29 @@
+package com.alibaba.easyexcel.test.temp.data;
+
+import com.alibaba.excel.annotation.ExcelProperty;
+
+import lombok.Data;
+
+@Data
+public class DataType {
+    /**
+     * 任务id
+     */
+    @ExcelProperty("任务ID")
+    private Integer id;
+
+    @ExcelProperty("多余字段1")
+    private String firstSurplus;
+
+    @ExcelProperty("多余字段2")
+    private String secSurplus;
+
+    @ExcelProperty("多余字段3")
+    private String thirdSurplus;
+
+    @ExcelProperty(value = "备注1")
+    private String firstRemark;
+
+    @ExcelProperty(value = "备注2")
+    private String secRemark;
+}

src/test/java/com/alibaba/easyexcel/test/temp/data/HeadType.java

@@ -0,0 +1,24 @@
+package com.alibaba.easyexcel.test.temp.data;
+
+import com.alibaba.excel.annotation.ExcelProperty;
+
+import lombok.Data;
+
+@Data
+public class HeadType {
+
+
+    /**
+     * 任务id
+     */
+    @ExcelProperty("任务ID")
+    private Integer id;
+
+
+    @ExcelProperty(value = "备注1")
+    private String firstRemark;
+
+    @ExcelProperty(value = "备注2")
+    private String secRemark;
+
+}

update.md

@@ -1,4 +1,5 @@
 # 3.0.0-beta1
+
 * 升级jdk8 不再支持jdk6 jdk7
 * 升级poi 到 4.1.2
 * 升级cglib 到 3.3.0
@@ -24,28 +25,35 @@
 * 新增头的非空校验 [Issue #1765](https://github.com/alibaba/easyexcel/issues/1765)
 * 修复某些特殊的excel读取失败的问题 [Issue #1595](https://github.com/alibaba/easyexcel/issues/1595)
 * 修复不创建对象写入数据异常 [Issue #1702](https://github.com/alibaba/easyexcel/issues/1702)
-
+* 修复头和数据对象不一致会覆盖的问题 [Issue #1870](https://github.com/alibaba/easyexcel/issues/1870)
 
 # 2.2.10
+
 * 修复读取的时候用string接收数字 可能四舍五入不一致的bug
 
 # 2.2.9
+
 * 修复读取的时候用string接收数字 可能四舍五入不一致的bug
 
 # 2.2.8
+
 * 兼容07在特殊的excel的情况下，读取数据异常
 
 # 2.2.7
+
 * 修改07在特殊情况下用`String`接收数字会丢小数位的bug
 
 # 2.2.6
+
 * 修改跳着读取03版本空指针bug
 
 # 2.2.5
+
 * `ExcelProperty`新增`order` 用于排序
-*  修复导出指定`index`会导致空行的bug
+* 修复导出指定`index`会导致空行的bug
 
 # 2.2.4
+
 * 撤销删除`AbstractMergeStrategy`
 * 修改默认用String读取数字不使用科学计数法 通过`useScientificFormat`修改
 * 修复07版仅有样式的空行 默认不忽略的bug
@@ -59,14 +67,17 @@
 * 修复`@NumberFormat`注解转换double时可能会丢失精度 [Issue #1306](https://github.com/alibaba/easyexcel/issues/1306)
 
 # 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
 * 修复复杂表头不是`index=0`开始 合并异常的bug [Issue #1322](https://github.com/alibaba/easyexcel/issues/1322)
 
 # 2.2.1
+
 * 发布正式版
 * 修复第一行为空不会调用`invokeHeadMap`的bug [Issue #993](https://github.com/alibaba/easyexcel/issues/993)
 * 当类的属性没有按照ExcelProperty的属性index顺序排序的时候，写数据出现错乱 [Issue #1046](https://github.com/alibaba/easyexcel/issues/1046)
@@ -76,11 +87,13 @@
 * 修复`table`、`sheet`中创建的拦截器不执行`workbook`事件的bug [Issue #1202](https://github.com/alibaba/easyexcel/issues/1202)
 
 # 2.2.0-beta2
+
 * 修复最长匹配策略不同表格会有影响的bug [Issue #1010](https://github.com/alibaba/easyexcel/issues/1010)
 * `LinkedList`写入的性能问题 #1121
 * 修复在某些情况下可能出现不必要的`warn`日志
 
 # 2.2.0-beta1
+
 * 重写主流程，代码更加优雅
 * 修复用String接收日期、数字和excel显示不一致的bug(不是完美修复，但是大部分情况已经兼容)
 * 降低Ehcache版本 3.7.1(jkd7) -> 3.4.0(jdk6)
@@ -98,19 +111,24 @@
 * 填充支持多个List对象
 
 # 2.1.7
+
 * 修复使用1+版本的写法，第1条开始读修改为第0条开始读
 
 # 2.1.6
+
 * 修复写入只有`sheetName`会抛异常
 
 # 2.1.5
+
 * 修复部分xlsx没有行号读取异常
 * 填充时候支持根据`sheetName`定位`sheet`
 
 # 2.1.4
+
 * 新增参数`useDefaultListener` 可以排除默认对象转换
 
 # 2.1.3
+
 * 每个java进程单独创建一个缓存目录 [Issue #813](https://github.com/alibaba/easyexcel/issues/813)
 * 统一修改合并为unsafe，提高大量数据导出的合并的效率
 * 修改merge返回参数`relativeRowIndex`为`Integer`
@@ -120,9 +138,11 @@
 * `SimpleColumnWidthStyleStrategy` 新增 参数`columnIndex`  [Issue #806](https://github.com/alibaba/easyexcel/issues/806)
 
 # 2.1.2
+
 * 修复强制创建新行填充，只有一行数据会未填充的bug
 
 # 2.1.1
+
 * 发布正式版
 * 修改map返回为LinkedHashMap
 * 修改同步读取返回对象支持泛型
@@ -138,11 +158,13 @@
 * 修复03版无法获取大概总行数的bug
 
 # 2.1.0-beta4
+
 * 修改最长匹配策略会空指针的bug [Issue #747](https://github.com/alibaba/easyexcel/issues/747)
 * 修改afterRowDispose错误 [Issue #751](https://github.com/alibaba/easyexcel/issues/751)
 * 修复多个头的情况下会读取数据为空
 
 # 2.1.0-beta3
+
 * 支持强行指定在内存处理，以支持备注、RichTextString等的写入
 * 修复关闭流失败，可能会不删除临时文件的问题
 * 支持根据参数自定义导出列
@@ -151,11 +173,13 @@
 * 修复填充的时候有数字会异常
 
 # 2.1.0-beta2
+
 * 修改模板通过流创建报错的bug
 * 修复空数据未替换掉的bug
 * 修复空模板会空一行的bug
 
 # 2.1.0-beta1
+
 * 新增支持导入、导出支持公式
 * 新增支持读取单元格类型、写入指定单元格类型
 * 支持通过模板填充数据
@@ -168,53 +192,65 @@
 * 支持导入加密 [Issue #295](https://github.com/alibaba/easyexcel/issues/295)
 
 # 2.0.5
+
 * 优化07版超大文件读取方案
 * 支持自己设置超大文件读取参数
 * 读取xlsx会改变修改时间的bug [Issue #574](https://github.com/alibaba/easyexcel/issues/574)
 * 默认读取忽略空行 根据参数ignoreEmptyRow参数设置
 
 # 2.0.4
+
 * 修复07版整个excel仅存在数字时会出现的NPE
 * 修复03版 用String接收电话会出现科学计数法的问题
 
 # 2.0.3
+
 * 修复重大bug 在07版读取文件的时候 小概率导致数字部分丢失
 
 # 2.0.2
+
 * 修复xls无法获取sheetList的bug [Issue #621](https://github.com/alibaba/easyexcel/issues/621)
 * 修复监听器转换异常会重复提示的bug
 
 # 2.0.1
+
 * 降级poi为3.17 兼容jdk6
 
 # 2.0.0
+
 * 修复当cell为空可能会抛出空指针的bug
 * 修复电话等长数字可能出现科学计数法的问题 [Issue #583](https://github.com/alibaba/easyexcel/issues/583)
 * 升级为正式版
 
 # 2.0.0-beta6
+
 * 修复空行读取空指针异常
 * 修复写入指定头为List<List<String>>,但是数据用List<Class>导致的空指针
 
 # 2.0.0-beta5
+
 * 修复在读取值的时候读取了额外值导致数据转换异常
 
 # 2.0.0-beta4
+
 * 修改在传入List<List<Object>>判断行数错误 [Issue #526](https://github.com/alibaba/easyexcel/issues/526)
 * 修复在mac 2016 2017导出的excel 可能存在多余字段的问题
 * 修复03版 读取无法指定sheet的问题 [Issue #533](https://github.com/alibaba/easyexcel/issues/533)
 
 # 2.0.0-beta3
+
 * 导出完成移除临时目录 [Issue #386](https://github.com/alibaba/easyexcel/issues/386)
 * 新增读取返回头数据
 
 # 2.0.0-beta2
+
 * 加速gc回收 [Issue #511](https://github.com/alibaba/easyexcel/issues/511)
 * 修改空字符串读取可能读取上个字段的数据的bug
 * 修改换行数据无法读取的bug [Issue #521](https://github.com/alibaba/easyexcel/issues/521)
 * 修复在空字符串的时候 格式转换异常 [Issue #520](https://github.com/alibaba/easyexcel/issues/520)
 
 # 2.0.0-beta1
+
 * 优化读写逻辑
 * 优化读写对外接口
 * 加入转换器，方便格式转换
@@ -224,31 +260,41 @@
 * 升级poi 到4.0.1
 
 # 1.2.4
+
 修复read()方法存在的bug
 
 # 1.2.1
+
 修复POI在大并发情况下创建临时目录失败的bug
 
 # 1.0.9
+
 修复excel超过16列被覆盖的问题，修复数据只有一行时候无法透传的bug。
 
 # 1.0.8
+
 如果整行excel数据全部为空，则不解析返回。完善多sheet的解析。
 
 # 1.0.6
+
 增加@ExcelColumnNum,修复字符串前后空白，增加过滤功能。
 
 # 1.0.5
+
 优化类型转换的性能。
 
 # 1.0.4
+
 修复日期类型转换时候数字问题。基础模型支持字段类型int,long,double,boolean,date,string
 
 # 1.0.3
+
 修复无@ExcelProperty标注的多余字段时候报错。
 
 # 1.0.2
+
 修复拿到一行数据后，存到list中，但最后处理时候变为空的bug。
 
 # 1.0.1
+
 完善测试用例，防止歧义，模型字段映射不上时候有抛异常，改为提醒。