mirror of https://github.com/alibaba/easyexcel
Jiaju Zhuang
4 years ago
62 changed files with 746 additions and 540 deletions
@ -0,0 +1,13 @@ |
|||||||
|
package com.alibaba.excel.constant; |
||||||
|
|
||||||
|
/** |
||||||
|
* Order constant. |
||||||
|
* |
||||||
|
* @author Jiaju Zhuang |
||||||
|
*/ |
||||||
|
public class OrderConstant { |
||||||
|
/** |
||||||
|
* Sorting of styles written to cells. |
||||||
|
*/ |
||||||
|
public static final int FILL_DATA_FORMAT = 10000; |
||||||
|
} |
||||||
@ -0,0 +1,34 @@ |
|||||||
|
package com.alibaba.excel.converters.date; |
||||||
|
|
||||||
|
import java.util.Date; |
||||||
|
|
||||||
|
import com.alibaba.excel.converters.Converter; |
||||||
|
import com.alibaba.excel.metadata.CellData; |
||||||
|
import com.alibaba.excel.metadata.property.ExcelContentProperty; |
||||||
|
import com.alibaba.excel.util.WorkBookUtil; |
||||||
|
import com.alibaba.excel.write.metadata.holder.WriteHolder; |
||||||
|
|
||||||
|
/** |
||||||
|
* Date and date converter |
||||||
|
* |
||||||
|
* @author Jiaju Zhuang |
||||||
|
*/ |
||||||
|
public class DateDateConverter implements Converter<Date> { |
||||||
|
@Override |
||||||
|
public Class<Date> supportJavaTypeKey() { |
||||||
|
return Date.class; |
||||||
|
} |
||||||
|
|
||||||
|
@Override |
||||||
|
public CellData<?> convertToExcelData(Date value, ExcelContentProperty contentProperty, |
||||||
|
WriteHolder currentWriteHolder) throws Exception { |
||||||
|
CellData<?> cellData = new CellData<>(value); |
||||||
|
if (contentProperty == null || contentProperty.getDateTimeFormatProperty() == null |
||||||
|
|| contentProperty.getDateTimeFormatProperty().getFormat() == null) { |
||||||
|
return cellData; |
||||||
|
} |
||||||
|
WorkBookUtil.fillDataFormat(cellData, currentWriteHolder, |
||||||
|
contentProperty.getDateTimeFormatProperty().getFormat()); |
||||||
|
return cellData; |
||||||
|
} |
||||||
|
} |
||||||
@ -0,0 +1,63 @@ |
|||||||
|
package com.alibaba.excel.util; |
||||||
|
|
||||||
|
import java.util.ArrayList; |
||||||
|
import java.util.HashMap; |
||||||
|
import java.util.List; |
||||||
|
import java.util.Map; |
||||||
|
|
||||||
|
/** |
||||||
|
* Map utils |
||||||
|
* |
||||||
|
* @author Jiaju Zhuang |
||||||
|
**/ |
||||||
|
public class MapUtils { |
||||||
|
private MapUtils() {} |
||||||
|
/** |
||||||
|
* Creates a <i>mutable</i>, empty {@code HashMap} instance. |
||||||
|
* |
||||||
|
* <p><b>Note:</b> if mutability is not required, use {@link ImmutableMap#of()} instead. |
||||||
|
* |
||||||
|
* <p><b>Note:</b> if {@code K} is an {@code enum} type, use {@link #newEnumMap} instead. |
||||||
|
* |
||||||
|
* <p><b>Note for Java 7 and later:</b> this method is now unnecessary and should be treated as |
||||||
|
* deprecated. Instead, use the {@code HashMap} constructor directly, taking advantage of the new |
||||||
|
* <a href="http://goo.gl/iz2Wi">"diamond" syntax</a>. |
||||||
|
* |
||||||
|
* @return a new, empty {@code HashMap} |
||||||
|
*/ |
||||||
|
public static <K, V> HashMap<K, V> newHashMap() { |
||||||
|
return new HashMap<>(); |
||||||
|
} |
||||||
|
|
||||||
|
/** |
||||||
|
* Creates a {@code HashMap} instance, with a high enough "initial capacity" that it <i>should</i> |
||||||
|
* hold {@code expectedSize} elements without growth. This behavior cannot be broadly guaranteed, |
||||||
|
* but it is observed to be true for OpenJDK 1.7. It also can't be guaranteed that the method |
||||||
|
* isn't inadvertently <i>oversizing</i> the returned map. |
||||||
|
* |
||||||
|
* @param expectedSize the number of entries you expect to add to the returned map |
||||||
|
* @return a new, empty {@code HashMap} with enough capacity to hold {@code expectedSize} entries |
||||||
|
* without resizing |
||||||
|
* @throws IllegalArgumentException if {@code expectedSize} is negative |
||||||
|
*/ |
||||||
|
public static <K, V> HashMap<K, V> newHashMapWithExpectedSize(int expectedSize) { |
||||||
|
return new HashMap<>(capacity(expectedSize)); |
||||||
|
} |
||||||
|
|
||||||
|
/** |
||||||
|
* Returns a capacity that is sufficient to keep the map from being resized as long as it grows no |
||||||
|
* larger than expectedSize and the load factor is ≥ its default (0.75). |
||||||
|
*/ |
||||||
|
static int capacity(int expectedSize) { |
||||||
|
if (expectedSize < 3) { |
||||||
|
return expectedSize + 1; |
||||||
|
} |
||||||
|
if (expectedSize < IntUtils.MAX_POWER_OF_TWO) { |
||||||
|
// This is the calculation used in JDK8 to resize when a putAll
|
||||||
|
// happens; it seems to be the most conservative calculation we
|
||||||
|
// can make. 0.75 is the default load factor.
|
||||||
|
return (int) ((float) expectedSize / 0.75F + 1.0F); |
||||||
|
} |
||||||
|
return Integer.MAX_VALUE; |
||||||
|
} |
||||||
|
} |
||||||
@ -0,0 +1,75 @@ |
|||||||
|
package com.alibaba.excel.write.handler.impl; |
||||||
|
|
||||||
|
import java.util.HashSet; |
||||||
|
import java.util.List; |
||||||
|
import java.util.Set; |
||||||
|
|
||||||
|
import com.alibaba.excel.constant.OrderConstant; |
||||||
|
import com.alibaba.excel.enums.CellDataTypeEnum; |
||||||
|
import com.alibaba.excel.event.Order; |
||||||
|
import com.alibaba.excel.metadata.CellData; |
||||||
|
import com.alibaba.excel.metadata.Head; |
||||||
|
import com.alibaba.excel.util.DateUtils; |
||||||
|
import com.alibaba.excel.write.handler.CellWriteHandler; |
||||||
|
import com.alibaba.excel.write.metadata.holder.WriteSheetHolder; |
||||||
|
import com.alibaba.excel.write.metadata.holder.WriteTableHolder; |
||||||
|
|
||||||
|
import lombok.extern.slf4j.Slf4j; |
||||||
|
import org.apache.commons.collections4.CollectionUtils; |
||||||
|
import org.apache.poi.ss.usermodel.Cell; |
||||||
|
import org.apache.poi.ss.usermodel.CellStyle; |
||||||
|
import org.apache.poi.ss.usermodel.DataFormat; |
||||||
|
import org.apache.poi.ss.usermodel.Workbook; |
||||||
|
|
||||||
|
/** |
||||||
|
* fill cell style. |
||||||
|
* |
||||||
|
* @author Jiaju Zhuang |
||||||
|
*/ |
||||||
|
@Slf4j |
||||||
|
public class FillDataFormatCellWriteHandler implements CellWriteHandler, Order { |
||||||
|
|
||||||
|
private final Set<CellStyle> cellStyleSet = new HashSet<>(); |
||||||
|
|
||||||
|
private CellStyle defaultDateCellStyle; |
||||||
|
|
||||||
|
@Override |
||||||
|
public int order() { |
||||||
|
return OrderConstant.FILL_DATA_FORMAT; |
||||||
|
} |
||||||
|
|
||||||
|
@Override |
||||||
|
public void afterCellDispose(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, |
||||||
|
List<CellData<?>> cellDataList, Cell cell, Head head, Integer relativeRowIndex, Boolean isHead) { |
||||||
|
if (CollectionUtils.isEmpty(cellDataList) || cellDataList.size() > 1) { |
||||||
|
return; |
||||||
|
} |
||||||
|
CellData<?> cellData = cellDataList.get(0); |
||||||
|
CellStyle cellStyle = cell.getCellStyle(); |
||||||
|
if (cellStyle == null) { |
||||||
|
if (cellData.getType() == CellDataTypeEnum.DATE) { |
||||||
|
cell.setCellStyle(getDefaultDateCellStyle(writeSheetHolder)); |
||||||
|
} |
||||||
|
return; |
||||||
|
} |
||||||
|
if (cellStyleSet.contains(cellStyle)) { |
||||||
|
return; |
||||||
|
} |
||||||
|
if (cellData.getDataFormat() != null && cellData.getDataFormat() >= 0) { |
||||||
|
cellStyle.setDataFormat(cellData.getDataFormat()); |
||||||
|
} |
||||||
|
cellStyleSet.add(cellStyle); |
||||||
|
} |
||||||
|
|
||||||
|
private CellStyle getDefaultDateCellStyle(WriteSheetHolder writeSheetHolder) { |
||||||
|
if (defaultDateCellStyle != null) { |
||||||
|
return defaultDateCellStyle; |
||||||
|
} |
||||||
|
Workbook workbook = writeSheetHolder.getParentWriteWorkbookHolder().getWorkbook(); |
||||||
|
defaultDateCellStyle = workbook.createCellStyle(); |
||||||
|
DataFormat dataFormat = workbook.createDataFormat(); |
||||||
|
defaultDateCellStyle.setDataFormat(dataFormat.getFormat(DateUtils.defaultDateFormat)); |
||||||
|
return defaultDateCellStyle; |
||||||
|
} |
||||||
|
|
||||||
|
} |
||||||
Loading…
Reference in new issue