如何在 apache poi 中为 DataBar 添加负值？
How to Add negative value for DataBar in apache poi?
我使用这段代码创建了一个数据栏：
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFDataBarFormatting;
import org.apache.poi.ss.util.CellRangeAddress;
import java.io.FileOutputStream;
import java.lang.reflect.Field;
public class ConditionalFormattingDataBars {
public static void applyDataBars(SheetConditionalFormatting sheetCF, String region, ExtendedColor color) throws Exception {
CellRangeAddress[] regions = { CellRangeAddress.valueOf(region) };
ConditionalFormattingRule rule = sheetCF.createConditionalFormattingRule(color);
DataBarFormatting dbf = rule.getDataBarFormatting();
dbf.getMinThreshold().setRangeType(ConditionalFormattingThreshold.RangeType.MIN);
dbf.getMaxThreshold().setRangeType(ConditionalFormattingThreshold.RangeType.MAX);
dbf.setWidthMin(0); //cannot work for XSSFDataBarFormatting, see https://svn.apache.org/viewvc/poi/tags/REL_4_0_1/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFDataBarFormatting.java?view=markup#l57
dbf.setWidthMax(100); //cannot work for XSSFDataBarFormatting, see https://svn.apache.org/viewvc/poi/tags/REL_4_0_1/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFDataBarFormatting.java?view=markup#l64
if (dbf instanceof XSSFDataBarFormatting) {
Field _databar = XSSFDataBarFormatting.class.getDeclaredField("_databar");
_databar.setAccessible(true);
org.openxmlformats.schemas.spreadsheetml.x2006.main.CTDataBar ctDataBar =
(org.openxmlformats.schemas.spreadsheetml.x2006.main.CTDataBar)_databar.get(dbf);
ctDataBar.setMinLength(0);
ctDataBar.setMaxLength(100);
}
sheetCF.addConditionalFormatting(regions, rule);
}
public static void main(String[] args) throws Exception {
Workbook workbook = new XSSFWorkbook();
Sheet sheet = workbook.createSheet("new sheet");
java.util.List<Double> list = java.util.Arrays.asList(0.279, 0.252, 0.187, 0.128, 0.078, 0.043, 0.022, 0.012, 0.011, 0.0, 0.0);
for (int i = 0; i < list.size(); i++) {
sheet.createRow(i+1).createCell(1).setCellValue(list.get(i));
}
SheetConditionalFormatting sheetCF = sheet.getSheetConditionalFormatting();
ExtendedColor color = workbook.getCreationHelper().createExtendedColor();
color.setARGBHex("FF80C279");
applyDataBars(sheetCF, "B2:B12", color);
sheet.setColumnWidth(1, 50*256);
FileOutputStream out = new FileOutputStream("ConditionalFormattingDataBars.xlsx");
workbook.write(out);
out.close();
workbook.close();
}
}
而且我喜欢提供的问题 Hear
它正在运行！
但是我尝试修改它以添加负值，如下所示：
但我不喜欢 Class 或反对这样做！
这可能吗？
这是一个与以下问题类似的问题：。
Office Open XML 发布时，数据条中的负值设置不可用。这是后来添加的功能。由于 apache poi 仅使用 Office Open XML 已发布的功能，因此无法直接使用此功能。此外，使用底层 org.openxmlformats.schemas.spreadsheetml.x2006.main.* 类 也不可用，因为它们也只能从已发布的 Office Open XML.
创建
这个怎么看？所有 Office Open XML 个文件都是 ZIP 个档案。可以解压缩它们并查看 XML。所以我们在Excel中根据需要进行数据栏设置，保存在*.xlsx文件中。然后我们解压缩 *.xlsx 文件并查看 /xl/worksheets/sheet1.xml。在那里我们找到了条件格式的设置。
所以我们只能按照上面链接答案中的方法解决这个问题。
完整示例：
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFDataBarFormatting;
import org.apache.poi.xssf.usermodel.XSSFConditionalFormattingRule;
import org.apache.poi.ss.util.CellRangeAddress;
import java.io.FileOutputStream;
import java.lang.reflect.Field;
public class ConditionalFormattingDataBars {
public static void applyDataBars(SheetConditionalFormatting sheetCF, String region, ExtendedColor colorPos, ExtendedColor colorNeg) throws Exception {
CellRangeAddress[] regions = { CellRangeAddress.valueOf(region) };
ConditionalFormattingRule rule = sheetCF.createConditionalFormattingRule(colorPos);
DataBarFormatting dbf = rule.getDataBarFormatting();
dbf.getMinThreshold().setRangeType(ConditionalFormattingThreshold.RangeType.MIN);
dbf.getMaxThreshold().setRangeType(ConditionalFormattingThreshold.RangeType.MAX);
dbf.setWidthMin(0); //cannot work for XSSFDataBarFormatting, see https://svn.apache.org/viewvc/poi/tags/REL_4_0_1/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFDataBarFormatting.java?view=markup#l57
dbf.setWidthMax(100); //cannot work for XSSFDataBarFormatting, see https://svn.apache.org/viewvc/poi/tags/REL_4_0_1/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFDataBarFormatting.java?view=markup#l64
if (dbf instanceof XSSFDataBarFormatting) {
Field _databar = XSSFDataBarFormatting.class.getDeclaredField("_databar");
_databar.setAccessible(true);
org.openxmlformats.schemas.spreadsheetml.x2006.main.CTDataBar ctDataBar =
(org.openxmlformats.schemas.spreadsheetml.x2006.main.CTDataBar)_databar.get(dbf);
ctDataBar.setMinLength(0);
ctDataBar.setMaxLength(100);
}
// use extension from x14 namespace to set data bars having setting for negative value
if (rule instanceof XSSFConditionalFormattingRule) {
Field _cfRule = XSSFConditionalFormattingRule.class.getDeclaredField("_cfRule");
_cfRule.setAccessible(true);
org.openxmlformats.schemas.spreadsheetml.x2006.main.CTCfRule ctRule =
(org.openxmlformats.schemas.spreadsheetml.x2006.main.CTCfRule)_cfRule.get(rule);
org.openxmlformats.schemas.spreadsheetml.x2006.main.CTExtensionList extList =
ctRule.addNewExtLst();
org.openxmlformats.schemas.spreadsheetml.x2006.main.CTExtension ext = extList.addNewExt();
String extXML =
"<x14:id"
+ " xmlns:x14=\"http://schemas.microsoft.com/office/spreadsheetml/2009/9/main\">"
+ "{00000000-000E-0000-0000-000001000000}"
+ "</x14:id>";
org.apache.xmlbeans.XmlObject xlmObject = org.apache.xmlbeans.XmlObject.Factory.parse(extXML);
ext.set(xlmObject);
ext.setUri("{B025F937-C7B1-47D3-B67F-A62EFF666E3E}");
Field _sh = XSSFConditionalFormattingRule.class.getDeclaredField("_sh");
_sh.setAccessible(true);
XSSFSheet sheet = (XSSFSheet)_sh.get(rule);
extList = sheet.getCTWorksheet().addNewExtLst();
ext = extList.addNewExt();
extXML =
"<x14:conditionalFormattings xmlns:x14=\"http://schemas.microsoft.com/office/spreadsheetml/2009/9/main\">"
+ "<x14:conditionalFormatting xmlns:xm=\"http://schemas.microsoft.com/office/excel/2006/main\">"
+ "<x14:cfRule type=\"dataBar\" id=\"{00000000-000E-0000-0000-000001000000}\">"
+ "<x14:dataBar minLength=\"" + 0 + "\" maxLength=\"" + 100 + "\" border=\"1\" negativeBarBorderColorSameAsPositive=\"0\">"
+ "<x14:cfvo type=\"min\"/>"
+ "<x14:cfvo type=\"max\"/>"
+ "<x14:borderColor rgb=\"" + colorPos.getARGBHex() + "\"/>"
+ "<x14:negativeFillColor rgb=\"" + colorNeg.getARGBHex() + "\"/>"
+ "<x14:negativeBorderColor rgb=\"" + colorNeg.getARGBHex() + "\"/>"
+ "<x14:axisColor theme=\"1\"/>"
+ "</x14:dataBar>"
+ "</x14:cfRule>"
+ "<xm:sqref>" + region + "</xm:sqref>"
+ "</x14:conditionalFormatting>"
+ "</x14:conditionalFormattings>";
xlmObject = org.apache.xmlbeans.XmlObject.Factory.parse(extXML);
ext.set(xlmObject);
ext.setUri("{78C0D931-6437-407d-A8EE-F0AAD7539E65}");
}
sheetCF.addConditionalFormatting(regions, rule);
}
public static void main(String[] args) throws Exception {
Workbook workbook = new XSSFWorkbook();
Sheet sheet = workbook.createSheet("new sheet");
java.util.List<Double> list = java.util.Arrays.asList(0.279, -0.252, 0.187, -0.128, 0.078, 0.043, -0.022, 0.012, 0.011, 0.0, 0.0);
for (int i = 0; i < list.size(); i++) {
sheet.createRow(i+1).createCell(1).setCellValue(list.get(i));
}
SheetConditionalFormatting sheetCF = sheet.getSheetConditionalFormatting();
ExtendedColor colorPos = workbook.getCreationHelper().createExtendedColor();
colorPos.setARGBHex("FF80C279");
ExtendedColor colorNeg = workbook.getCreationHelper().createExtendedColor();
colorNeg.setARGBHex("FFFF0000");
applyDataBars(sheetCF, "B2:B12", colorPos, colorNeg);
sheet.setColumnWidth(1, 50*256);
FileOutputStream out = new FileOutputStream("ConditionalFormattingDataBars.xlsx");
workbook.write(out);
out.close();
workbook.close();
}
}
此代码仅适用于新创建的 XSSFWorkbook。如果 XSSFWorkbook 是从现有工作簿创建的，则它可能已经包含 org.openxmlformats.schemas.spreadsheetml.x2006.main.CTExtensionList 用于 x14 扩展。如果是这样，则必须考虑这些因素。但这将是一个更加复杂和具有挑战性的项目。
我使用这段代码创建了一个数据栏：
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFDataBarFormatting;
import org.apache.poi.ss.util.CellRangeAddress;
import java.io.FileOutputStream;
import java.lang.reflect.Field;
public class ConditionalFormattingDataBars {
public static void applyDataBars(SheetConditionalFormatting sheetCF, String region, ExtendedColor color) throws Exception {
CellRangeAddress[] regions = { CellRangeAddress.valueOf(region) };
ConditionalFormattingRule rule = sheetCF.createConditionalFormattingRule(color);
DataBarFormatting dbf = rule.getDataBarFormatting();
dbf.getMinThreshold().setRangeType(ConditionalFormattingThreshold.RangeType.MIN);
dbf.getMaxThreshold().setRangeType(ConditionalFormattingThreshold.RangeType.MAX);
dbf.setWidthMin(0); //cannot work for XSSFDataBarFormatting, see https://svn.apache.org/viewvc/poi/tags/REL_4_0_1/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFDataBarFormatting.java?view=markup#l57
dbf.setWidthMax(100); //cannot work for XSSFDataBarFormatting, see https://svn.apache.org/viewvc/poi/tags/REL_4_0_1/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFDataBarFormatting.java?view=markup#l64
if (dbf instanceof XSSFDataBarFormatting) {
Field _databar = XSSFDataBarFormatting.class.getDeclaredField("_databar");
_databar.setAccessible(true);
org.openxmlformats.schemas.spreadsheetml.x2006.main.CTDataBar ctDataBar =
(org.openxmlformats.schemas.spreadsheetml.x2006.main.CTDataBar)_databar.get(dbf);
ctDataBar.setMinLength(0);
ctDataBar.setMaxLength(100);
}
sheetCF.addConditionalFormatting(regions, rule);
}
public static void main(String[] args) throws Exception {
Workbook workbook = new XSSFWorkbook();
Sheet sheet = workbook.createSheet("new sheet");
java.util.List<Double> list = java.util.Arrays.asList(0.279, 0.252, 0.187, 0.128, 0.078, 0.043, 0.022, 0.012, 0.011, 0.0, 0.0);
for (int i = 0; i < list.size(); i++) {
sheet.createRow(i+1).createCell(1).setCellValue(list.get(i));
}
SheetConditionalFormatting sheetCF = sheet.getSheetConditionalFormatting();
ExtendedColor color = workbook.getCreationHelper().createExtendedColor();
color.setARGBHex("FF80C279");
applyDataBars(sheetCF, "B2:B12", color);
sheet.setColumnWidth(1, 50*256);
FileOutputStream out = new FileOutputStream("ConditionalFormattingDataBars.xlsx");
workbook.write(out);
out.close();
workbook.close();
}
}
而且我喜欢提供的问题 Hear
它正在运行！
但是我尝试修改它以添加负值，如下所示：
但我不喜欢 Class 或反对这样做！
这可能吗？
这是一个与以下问题类似的问题：
Office Open XML 发布时，数据条中的负值设置不可用。这是后来添加的功能。由于 apache poi 仅使用 Office Open XML 已发布的功能，因此无法直接使用此功能。此外，使用底层 org.openxmlformats.schemas.spreadsheetml.x2006.main.* 类 也不可用，因为它们也只能从已发布的 Office Open XML.
这个怎么看？所有 Office Open XML 个文件都是 ZIP 个档案。可以解压缩它们并查看 XML。所以我们在Excel中根据需要进行数据栏设置，保存在*.xlsx文件中。然后我们解压缩 *.xlsx 文件并查看 /xl/worksheets/sheet1.xml。在那里我们找到了条件格式的设置。
所以我们只能按照上面链接答案中的方法解决这个问题。
完整示例：
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFDataBarFormatting;
import org.apache.poi.xssf.usermodel.XSSFConditionalFormattingRule;
import org.apache.poi.ss.util.CellRangeAddress;
import java.io.FileOutputStream;
import java.lang.reflect.Field;
public class ConditionalFormattingDataBars {
public static void applyDataBars(SheetConditionalFormatting sheetCF, String region, ExtendedColor colorPos, ExtendedColor colorNeg) throws Exception {
CellRangeAddress[] regions = { CellRangeAddress.valueOf(region) };
ConditionalFormattingRule rule = sheetCF.createConditionalFormattingRule(colorPos);
DataBarFormatting dbf = rule.getDataBarFormatting();
dbf.getMinThreshold().setRangeType(ConditionalFormattingThreshold.RangeType.MIN);
dbf.getMaxThreshold().setRangeType(ConditionalFormattingThreshold.RangeType.MAX);
dbf.setWidthMin(0); //cannot work for XSSFDataBarFormatting, see https://svn.apache.org/viewvc/poi/tags/REL_4_0_1/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFDataBarFormatting.java?view=markup#l57
dbf.setWidthMax(100); //cannot work for XSSFDataBarFormatting, see https://svn.apache.org/viewvc/poi/tags/REL_4_0_1/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFDataBarFormatting.java?view=markup#l64
if (dbf instanceof XSSFDataBarFormatting) {
Field _databar = XSSFDataBarFormatting.class.getDeclaredField("_databar");
_databar.setAccessible(true);
org.openxmlformats.schemas.spreadsheetml.x2006.main.CTDataBar ctDataBar =
(org.openxmlformats.schemas.spreadsheetml.x2006.main.CTDataBar)_databar.get(dbf);
ctDataBar.setMinLength(0);
ctDataBar.setMaxLength(100);
}
// use extension from x14 namespace to set data bars having setting for negative value
if (rule instanceof XSSFConditionalFormattingRule) {
Field _cfRule = XSSFConditionalFormattingRule.class.getDeclaredField("_cfRule");
_cfRule.setAccessible(true);
org.openxmlformats.schemas.spreadsheetml.x2006.main.CTCfRule ctRule =
(org.openxmlformats.schemas.spreadsheetml.x2006.main.CTCfRule)_cfRule.get(rule);
org.openxmlformats.schemas.spreadsheetml.x2006.main.CTExtensionList extList =
ctRule.addNewExtLst();
org.openxmlformats.schemas.spreadsheetml.x2006.main.CTExtension ext = extList.addNewExt();
String extXML =
"<x14:id"
+ " xmlns:x14=\"http://schemas.microsoft.com/office/spreadsheetml/2009/9/main\">"
+ "{00000000-000E-0000-0000-000001000000}"
+ "</x14:id>";
org.apache.xmlbeans.XmlObject xlmObject = org.apache.xmlbeans.XmlObject.Factory.parse(extXML);
ext.set(xlmObject);
ext.setUri("{B025F937-C7B1-47D3-B67F-A62EFF666E3E}");
Field _sh = XSSFConditionalFormattingRule.class.getDeclaredField("_sh");
_sh.setAccessible(true);
XSSFSheet sheet = (XSSFSheet)_sh.get(rule);
extList = sheet.getCTWorksheet().addNewExtLst();
ext = extList.addNewExt();
extXML =
"<x14:conditionalFormattings xmlns:x14=\"http://schemas.microsoft.com/office/spreadsheetml/2009/9/main\">"
+ "<x14:conditionalFormatting xmlns:xm=\"http://schemas.microsoft.com/office/excel/2006/main\">"
+ "<x14:cfRule type=\"dataBar\" id=\"{00000000-000E-0000-0000-000001000000}\">"
+ "<x14:dataBar minLength=\"" + 0 + "\" maxLength=\"" + 100 + "\" border=\"1\" negativeBarBorderColorSameAsPositive=\"0\">"
+ "<x14:cfvo type=\"min\"/>"
+ "<x14:cfvo type=\"max\"/>"
+ "<x14:borderColor rgb=\"" + colorPos.getARGBHex() + "\"/>"
+ "<x14:negativeFillColor rgb=\"" + colorNeg.getARGBHex() + "\"/>"
+ "<x14:negativeBorderColor rgb=\"" + colorNeg.getARGBHex() + "\"/>"
+ "<x14:axisColor theme=\"1\"/>"
+ "</x14:dataBar>"
+ "</x14:cfRule>"
+ "<xm:sqref>" + region + "</xm:sqref>"
+ "</x14:conditionalFormatting>"
+ "</x14:conditionalFormattings>";
xlmObject = org.apache.xmlbeans.XmlObject.Factory.parse(extXML);
ext.set(xlmObject);
ext.setUri("{78C0D931-6437-407d-A8EE-F0AAD7539E65}");
}
sheetCF.addConditionalFormatting(regions, rule);
}
public static void main(String[] args) throws Exception {
Workbook workbook = new XSSFWorkbook();
Sheet sheet = workbook.createSheet("new sheet");
java.util.List<Double> list = java.util.Arrays.asList(0.279, -0.252, 0.187, -0.128, 0.078, 0.043, -0.022, 0.012, 0.011, 0.0, 0.0);
for (int i = 0; i < list.size(); i++) {
sheet.createRow(i+1).createCell(1).setCellValue(list.get(i));
}
SheetConditionalFormatting sheetCF = sheet.getSheetConditionalFormatting();
ExtendedColor colorPos = workbook.getCreationHelper().createExtendedColor();
colorPos.setARGBHex("FF80C279");
ExtendedColor colorNeg = workbook.getCreationHelper().createExtendedColor();
colorNeg.setARGBHex("FFFF0000");
applyDataBars(sheetCF, "B2:B12", colorPos, colorNeg);
sheet.setColumnWidth(1, 50*256);
FileOutputStream out = new FileOutputStream("ConditionalFormattingDataBars.xlsx");
workbook.write(out);
out.close();
workbook.close();
}
}
此代码仅适用于新创建的 XSSFWorkbook。如果 XSSFWorkbook 是从现有工作簿创建的，则它可能已经包含 org.openxmlformats.schemas.spreadsheetml.x2006.main.CTExtensionList 用于 x14 扩展。如果是这样，则必须考虑这些因素。但这将是一个更加复杂和具有挑战性的项目。