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升级poi到最新版3.17

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master
RuoYi 7 years ago committed by Limy
parent f28c25e480
commit 490eaecb24
2 changed files with 167 additions and 133 deletions
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2
pom.xml
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@ -238,7 +238,7 @@
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.9</version>
<version>3.17</version>
</dependency>
</dependencies>

298
src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
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@ -13,6 +13,7 @@ import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import org.apache.poi.hssf.usermodel.DVConstraint;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
@ -21,17 +22,21 @@ import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.hssf.util.HSSFColor.HSSFColorPredefined;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.FillPatternType;
import org.apache.poi.ss.usermodel.HorizontalAlignment;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.VerticalAlignment;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.apache.poi.ss.util.CellRangeAddressList;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.ResourceUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.framework.aspectj.lang.annotation.Excel;
import com.ruoyi.framework.shiro.web.session.OnlineWebSessionManager;
@ -98,6 +103,8 @@ public class ExcelUtil<T>
if (rows > 0)
{
// 默认序号
int serialNum = 0;
// 有数据时才处理 得到类的所有field.
Field[] allFields = clazz.getDeclaredFields();
// 定义一个map用于存放列的序号和field.
@ -110,14 +117,14 @@ public class ExcelUtil<T>
{
// 设置类的私有字段属性可访问.
field.setAccessible(true);
fieldsMap.put(col, field);
fieldsMap.put(++serialNum, field);
}
}
for (int i = 1; i < rows; i++)
{
// 从第2行开始取数据,默认第一行是表头.
Row row = sheet.getRow(i);
int cellNum = sheet.getRow(0).getPhysicalNumberOfCells();
int cellNum = serialNum;
T entity = null;
for (int j = 0; j < cellNum; j++)
{
@ -129,7 +136,7 @@ public class ExcelUtil<T>
else
{
// 先设置Cell的类型，然后就可以把纯数字作为String类型读进来了
row.getCell(j).setCellType(Cell.CELL_TYPE_STRING);
row.getCell(j).setCellType(CellType.STRING);
cell = row.getCell(j);
}
@ -178,7 +185,7 @@ public class ExcelUtil<T>
}
else if (java.util.Date.class == fieldType)
{
if (cell.getCellType() == Cell.CELL_TYPE_NUMERIC)
if (cell.getCellTypeEnum() == CellType.NUMERIC)
{
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
cell.setCellValue(sdf.format(cell.getNumericCellValue()));
@ -211,168 +218,195 @@ public class ExcelUtil<T>
*/
public AjaxResult exportExcel(List<T> list, String sheetName)
{
// 得到所有定义字段
Field[] allFields = clazz.getDeclaredFields();
List<Field> fields = new ArrayList<Field>();
// 得到所有field并存放到一个list中.
for (Field field : allFields)
{
if (field.isAnnotationPresent(Excel.class))
{
fields.add(field);
}
}
OutputStream out = null;
HSSFWorkbook workbook = null;
// 产生工作薄对象
HSSFWorkbook workbook = new HSSFWorkbook();
// excel2003中每个sheet中最多有65536行
int sheetSize = 65536;
// 取出一共有多少个sheet.
double sheetNo = Math.ceil(list.size() / sheetSize);
for (int index = 0; index <= sheetNo; index++)
try
{
// 产生工作表对象
HSSFSheet sheet = workbook.createSheet();
if (sheetNo == 0)
{
workbook.setSheetName(index, sheetName);
}
else
// 得到所有定义字段
Field[] allFields = clazz.getDeclaredFields();
List<Field> fields = new ArrayList<Field>();
// 得到所有field并存放到一个list中.
for (Field field : allFields)
{
// 设置工作表的名称.
workbook.setSheetName(index, sheetName + index);
if (field.isAnnotationPresent(Excel.class))
{
fields.add(field);
}
}
HSSFRow row;
HSSFCell cell; // 产生单元格
// 产生一行
row = sheet.createRow(0);
// 写入各个字段的列头名称
for (int i = 0; i < fields.size(); i++)
// 产生工作薄对象
workbook = new HSSFWorkbook();
// excel2003中每个sheet中最多有65536行
int sheetSize = 65536;
// 取出一共有多少个sheet.
double sheetNo = Math.ceil(list.size() / sheetSize);
for (int index = 0; index <= sheetNo; index++)
{
Field field = fields.get(i);
Excel attr = field.getAnnotation(Excel.class);
// 创建列
cell = row.createCell(i);
// 设置列中写入内容为String类型
cell.setCellType(HSSFCell.CELL_TYPE_STRING);
HSSFCellStyle cellStyle = workbook.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
cellStyle.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
if (attr.name().indexOf("注：") >= 0)
// 产生工作表对象
HSSFSheet sheet = workbook.createSheet();
if (sheetNo == 0)
{
HSSFFont font = workbook.createFont();
font.setColor(HSSFFont.COLOR_RED);
cellStyle.setFont(font);
cellStyle.setFillForegroundColor(HSSFColor.LIGHT_YELLOW.index);
sheet.setColumnWidth(i, 6000);
workbook.setSheetName(index, sheetName);
}
else
{
HSSFFont font = workbook.createFont();
// 粗体显示
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
// 选择需要用到的字体格式
cellStyle.setFont(font);
cellStyle.setFillForegroundColor(HSSFColor.LIGHT_YELLOW.index);
// 设置列宽
sheet.setColumnWidth(i, 3766);
// 设置工作表的名称.
workbook.setSheetName(index, sheetName + index);
}
cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
cellStyle.setWrapText(true);
cell.setCellStyle(cellStyle);
// 写入列名
cell.setCellValue(attr.name());
HSSFRow row;
HSSFCell cell; // 产生单元格
// 如果设置了提示信息则鼠标放上去提示.
if (StringUtils.isNotEmpty(attr.prompt()))
{
// 这里默认设了2-101列提示.
setHSSFPrompt(sheet, "", attr.prompt(), 1, 100, i, i);
}
// 如果设置了combo属性则本列只能选择不能输入
if (attr.combo().length > 0)
// 产生一行
row = sheet.createRow(0);
// 写入各个字段的列头名称
for (int i = 0; i < fields.size(); i++)
{
// 这里默认设了2-101列只能选择不能输入.
setHSSFValidation(sheet, attr.combo(), 1, 100, i, i);
Field field = fields.get(i);
Excel attr = field.getAnnotation(Excel.class);
// 创建列
cell = row.createCell(i);
// 设置列中写入内容为String类型
cell.setCellType(CellType.STRING);
HSSFCellStyle cellStyle = workbook.createCellStyle();
cellStyle.setAlignment(HorizontalAlignment.CENTER);
cellStyle.setVerticalAlignment(VerticalAlignment.CENTER);
if (attr.name().indexOf("注：") >= 0)
{
HSSFFont font = workbook.createFont();
font.setColor(HSSFFont.COLOR_RED);
cellStyle.setFont(font);
cellStyle.setFillForegroundColor(HSSFColorPredefined.YELLOW.getIndex());
sheet.setColumnWidth(i, 6000);
}
else
{
HSSFFont font = workbook.createFont();
// 粗体显示
font.setBold(true);
// 选择需要用到的字体格式
cellStyle.setFont(font);
cellStyle.setFillForegroundColor(HSSFColorPredefined.LIGHT_YELLOW.getIndex());
// 设置列宽
sheet.setColumnWidth(i, 3766);
}
cellStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);
cellStyle.setWrapText(true);
cell.setCellStyle(cellStyle);
// 写入列名
cell.setCellValue(attr.name());
// 如果设置了提示信息则鼠标放上去提示.
if (StringUtils.isNotEmpty(attr.prompt()))
{
// 这里默认设了2-101列提示.
setHSSFPrompt(sheet, "", attr.prompt(), 1, 100, i, i);
}
// 如果设置了combo属性则本列只能选择不能输入
if (attr.combo().length > 0)
{
// 这里默认设了2-101列只能选择不能输入.
setHSSFValidation(sheet, attr.combo(), 1, 100, i, i);
}
}
}
int startNo = index * sheetSize;
int endNo = Math.min(startNo + sheetSize, list.size());
// 写入各条记录,每条记录对应excel表中的一行
HSSFCellStyle cs = workbook.createCellStyle();
cs.setAlignment(HSSFCellStyle.ALIGN_CENTER);
cs.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
for (int i = startNo; i < endNo; i++)
{
row = sheet.createRow(i + 1 - startNo);
// 得到导出对象.
T vo = (T) list.get(i);
for (int j = 0; j < fields.size(); j++)
int startNo = index * sheetSize;
int endNo = Math.min(startNo + sheetSize, list.size());
// 写入各条记录,每条记录对应excel表中的一行
HSSFCellStyle cs = workbook.createCellStyle();
cs.setAlignment(HorizontalAlignment.CENTER);
cs.setVerticalAlignment(VerticalAlignment.CENTER);
for (int i = startNo; i < endNo; i++)
{
// 获得field.
Field field = fields.get(j);
// 设置实体类私有属性可访问
field.setAccessible(true);
Excel attr = field.getAnnotation(Excel.class);
try
row = sheet.createRow(i + 1 - startNo);
// 得到导出对象.
T vo = (T) list.get(i);
for (int j = 0; j < fields.size(); j++)
{
// 根据Excel中设置情况决定是否导出,有些情况需要保持为空,希望用户填写这一列.
if (attr.isExport())
// 获得field.
Field field = fields.get(j);
// 设置实体类私有属性可访问
field.setAccessible(true);
Excel attr = field.getAnnotation(Excel.class);
try
{
// 创建cell
cell = row.createCell(j);
cell.setCellStyle(cs);
try
{
if (String.valueOf(field.get(vo)).length() > 10)
{
throw new Exception("长度超过10位就不用转数字了");
}
// 如果可以转成数字则导出为数字类型
BigDecimal bc = new BigDecimal(String.valueOf(field.get(vo)));
cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
cell.setCellValue(bc.doubleValue());
}
catch (Exception e)
// 根据Excel中设置情况决定是否导出,有些情况需要保持为空,希望用户填写这一列.
if (attr.isExport())
{
cell.setCellType(HSSFCell.CELL_TYPE_STRING);
if (vo == null)
// 创建cell
cell = row.createCell(j);
cell.setCellStyle(cs);
try
{
// 如果数据存在就填入,不存在填入空格.
cell.setCellValue("");
if (String.valueOf(field.get(vo)).length() > 10)
{
throw new Exception("长度超过10位就不用转数字了");
}
// 如果可以转成数字则导出为数字类型
BigDecimal bc = new BigDecimal(String.valueOf(field.get(vo)));
cell.setCellType(CellType.NUMERIC);
cell.setCellValue(bc.doubleValue());
}
else
catch (Exception e)
{
// 如果数据存在就填入,不存在填入空格.
cell.setCellValue(field.get(vo) == null ? "" : String.valueOf(field.get(vo)));
}
cell.setCellType(CellType.STRING);
if (vo == null)
{
// 如果数据存在就填入,不存在填入空格.
cell.setCellValue("");
}
else
{
// 如果数据存在就填入,不存在填入空格.
cell.setCellValue(field.get(vo) == null ? "" : String.valueOf(field.get(vo)));
}
}
}
}
}
catch (Exception e)
{
log.error("导出Excel失败{}", e.getMessage());
catch (Exception e)
{
log.error("导出Excel失败{}", e.getMessage());
}
}
}
}
}
try
{
String filename = encodingFilename(sheetName);
OutputStream out = new FileOutputStream(getfile() + filename);
out = new FileOutputStream(getfile() + filename);
workbook.write(out);
out.close();
return AjaxResult.success(filename);
}
catch (Exception e)
{
log.error("关闭flush失败{}", e.getMessage());
log.error("导出Excel异常{}", e.getMessage());
return AjaxResult.error("导出Excel失败，请联系网站管理员！");
}
finally
{
if (workbook != null)
{
try
{
workbook.close();
}
catch (IOException e1)
{
e1.printStackTrace();
}
}
if (out != null)
{
try
{
out.close();
}
catch (IOException e1)
{
e1.printStackTrace();
}
}
}
}
/**

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