wangliwen
/
share-platform
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

导出表头宽度自适应

This commit is contained in:
wangliwen 2022-10-18 14:38:41 +08:00
parent 094d27fddf
commit f1d3fea424
3 changed files with 169 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
renren-admin/src/main/java/io/renren/common/controller/CensusController.java
View File

@ -11,6 +11,8 @@ import io.renren.modules.processForm.service.TAbilityApplicationService;
import io.renren.modules.resource.dao.ResourceDao;
import io.renren.modules.resource.excel.census.SelectApplyDeptDetailTypeCountListExcel;
import io.renren.modules.resource.excel.census.SelectDeptDetailTypeCountListExcel;
import io.renren.modules.resource.excel.census.config.CustomCellWriteHeightConfig;
import io.renren.modules.resource.excel.census.config.CustomCellWriteWeightConfig;
import io.renren.modules.resource.service.ResourceService;
import io.renren.modules.resourceBrowse.service.ResourceBrowseService;
import io.renren.modules.sys.dto.SysDeptDTO;
@ -404,7 +406,10 @@ public class CensusController {
response.setCharacterEncoding("utf-8");
String fileName = URLEncoder.encode("按照部门_能力类型_组件类型统计能力使用情况_" + System.currentTimeMillis(), "UTF-8").replaceAll("\\+", "%20");
response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName + ".xlsx");
EasyExcel.write(response.getOutputStream(), SelectApplyDeptDetailTypeCountListExcel.class).sheet("使用情况").doWrite(date);
EasyExcel.write(response.getOutputStream(), SelectApplyDeptDetailTypeCountListExcel.class)
.registerWriteHandler(new CustomCellWriteWeightConfig())
.registerWriteHandler(new CustomCellWriteHeightConfig())
.sheet("使用情况").doWrite(date);
}
@GetMapping("/selectDeptDetailTypeCountList")
@ -446,7 +451,10 @@ public class CensusController {
response.setCharacterEncoding("utf-8");
String fileName = URLEncoder.encode("按照部门_能力类型_组件类型统计能力上架情况_" + System.currentTimeMillis(), "UTF-8").replaceAll("\\+", "%20");
response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName + ".xlsx");
EasyExcel.write(response.getOutputStream(), SelectDeptDetailTypeCountListExcel.class).sheet("上架情况").doWrite(date);
EasyExcel.write(response.getOutputStream(), SelectDeptDetailTypeCountListExcel.class)
.registerWriteHandler(new CustomCellWriteWeightConfig())
.registerWriteHandler(new CustomCellWriteHeightConfig())
.sheet("上架情况").doWrite(date);
}
@GetMapping("/selectCensusResourceTable")
@ -488,7 +496,10 @@ public class CensusController {
response.setCharacterEncoding("utf-8");
String fileName = URLEncoder.encode("部门上架资源及审批结果详细信息_" + System.currentTimeMillis(), "UTF-8").replaceAll("\\+", "%20");
response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName + ".xlsx");
EasyExcel.write(response.getOutputStream()).head(exportSelectCensusResourceTableHead()).sheet("上架情况").doWrite(date);
EasyExcel.write(response.getOutputStream()).head(exportSelectCensusResourceTableHead())
.registerWriteHandler(new CustomCellWriteWeightConfig())
.registerWriteHandler(new CustomCellWriteHeightConfig())
.sheet("上架情况").doWrite(date);
}
private List<List<String>> exportSelectCensusResourceTableHead() {
@ -551,7 +562,10 @@ public class CensusController {
response.setCharacterEncoding("utf-8");
String fileName = URLEncoder.encode("部门申请资源及审批结果详细信息_" + System.currentTimeMillis(), "UTF-8").replaceAll("\\+", "%20");
response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName + ".xlsx");
EasyExcel.write(response.getOutputStream()).head(exportSelectCensusApplyTableHead()).sheet("申请情况").doWrite(date);
EasyExcel.write(response.getOutputStream()).head(exportSelectCensusApplyTableHead())
.registerWriteHandler(new CustomCellWriteWeightConfig())
.registerWriteHandler(new CustomCellWriteHeightConfig())
.sheet("申请情况").doWrite(date);
}
private List<List<String>> exportSelectCensusApplyTableHead() {

58
renren-admin/src/main/java/io/renren/modules/resource/excel/census/config/CustomCellWriteHeightConfig.java Normal file
View File

@ -0,0 +1,58 @@
package io.renren.modules.resource.excel.census.config;
import com.alibaba.excel.write.style.row.AbstractRowHeightStyleStrategy;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import java.util.Iterator;
public class CustomCellWriteHeightConfig extends AbstractRowHeightStyleStrategy {
/**
* 默认高度
*/
private static final Integer DEFAULT_HEIGHT = 300;
/**
* Sets the height of header
*
* @param row
* @param relativeRowIndex
*/
@Override
protected void setHeadColumnHeight(Row row, int relativeRowIndex) {
}
/**
* Sets the height of content
*
* @param row
* @param relativeRowIndex
*/
@Override
protected void setContentColumnHeight(Row row, int relativeRowIndex) {
Iterator<Cell> cellIterator = row.cellIterator();
if (!cellIterator.hasNext()) {
return;
}
// 默认为 1行高度
Integer maxHeight = 1;
while (cellIterator.hasNext()) {
Cell cell = cellIterator.next();
switch (cell.getCellTypeEnum()) {
case STRING:
if (cell.getStringCellValue().indexOf("\n") != -1) {
int length = cell.getStringCellValue().split("\n").length;
maxHeight = Math.max(maxHeight, length);
}
break;
default:
break;
}
}
row.setHeight((short) (maxHeight * DEFAULT_HEIGHT));
}
}

93
renren-admin/src/main/java/io/renren/modules/resource/excel/census/config/CustomCellWriteWeightConfig.java Normal file
View File

@ -0,0 +1,93 @@
package io.renren.modules.resource.excel.census.config;
import com.alibaba.excel.enums.CellDataTypeEnum;
import com.alibaba.excel.metadata.CellData;
import com.alibaba.excel.metadata.Head;
import com.alibaba.excel.util.CollectionUtils;
import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
import com.alibaba.excel.write.style.column.AbstractColumnWidthStyleStrategy;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Sheet;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* 自适应行宽
*/
public class CustomCellWriteWeightConfig extends AbstractColumnWidthStyleStrategy {
private Map<Integer, Map<Integer, Integer>> CACHE = new HashMap<>();
/**
* Sets the column width when head create
*
* @param writeSheetHolder
* @param cellDataList
* @param cell
* @param head
* @param relativeRowIndex
* @param isHead
*/
@Override
protected void setColumnWidth(WriteSheetHolder writeSheetHolder, List<CellData> cellDataList, Cell cell, Head head, Integer relativeRowIndex, Boolean isHead) {
boolean needSetWidth = isHead || !CollectionUtils.isEmpty(cellDataList);
if (needSetWidth) {
Map<Integer, Integer> maxColumnWidthMap = CACHE.get(writeSheetHolder.getSheetNo());
if (maxColumnWidthMap == null) {
maxColumnWidthMap = new HashMap<>();
CACHE.put(writeSheetHolder.getSheetNo(), maxColumnWidthMap);
}
Integer columnWidth = this.dataLength(cellDataList, cell, isHead);
if (columnWidth >= 0) {
if (columnWidth > 254) {
columnWidth = 254;
}
Integer maxColumnWidth = maxColumnWidthMap.get(cell.getColumnIndex());
if (maxColumnWidth == null || columnWidth > maxColumnWidth) {
maxColumnWidthMap.put(cell.getColumnIndex(), columnWidth);
Sheet sheet = writeSheetHolder.getSheet();
sheet.setColumnWidth(cell.getColumnIndex(), columnWidth * 256);
}
}
}
}
/**
* 计算长度
*
* @param cellDataList
* @param cell
* @param isHead
* @return
*/
private Integer dataLength(List<CellData> cellDataList, Cell cell, Boolean isHead) {
if (isHead) {
return cell.getStringCellValue().getBytes().length;
} else {
CellData cellData = cellDataList.get(0);
CellDataTypeEnum type = cellData.getType();
if (type == null) {
return -1;
} else {
switch (type) {
case STRING:
// 换行符（数据需要提前解析好）
int index = cellData.getStringValue().indexOf("\n");
return index != -1 ?
cellData.getStringValue().substring(0, index).getBytes().length + 1 : cellData.getStringValue().getBytes().length + 1;
case BOOLEAN:
return cellData.getBooleanValue().toString().getBytes().length;
case NUMBER:
return cellData.getNumberValue().toString().getBytes().length;
default:
return -1;
}
}
}
}
}