如何使用 SXSSF 更改单元格颜色编辑包含大量数据的 excel 文件
How to edit excel file with large data using SXSSF change cell color
我已经阅读了所有以前提出的问题，但我找到了解决方案。
How to Edit existing large excel file with SXSSF Streaming api
我有一个现有文件，我需要更新某些内容的内容更改单元格颜色。
我需要修改超过 40,000 行的大数据的 excel 文件。
以下代码中完成的步骤。
- 为结果创建新文件，为结果复制文件 2 以不突出显示
相等的单元格
- 为 2 个比较 excel 个文件创建工作簿 Temp
- XSSFWorkbook XSSF cellStyleRed 作为 SXSSFWorkbook 不能有 cellstyle 颜色
- 在内存中保留 100 行，超过的行将被刷新到磁盘
- 来自两个 excel 文件的 compareTwoRows 不相等会将结果文件中的单元格样式颜色更改为红色。
问题出在下面的代码结果文件是空白的，没有内容。我了解我的代码
不正确，因为 SXSSFWorkbook 正在创建新的 sheet。
如何通过更改单元格颜色来更新结果文件？
package pageobjects;
import java.awt.Color;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardCopyOption;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.sl.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.DataFormatter;
import org.apache.poi.ss.usermodel.FillPatternType;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.util.CellReference;
import org.apache.poi.xssf.streaming.SXSSFCell;
import org.apache.poi.xssf.streaming.SXSSFRow;
import org.apache.poi.xssf.streaming.SXSSFSheet;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFColor;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.testng.Reporter;
import property.IHomePage;
import utility.SeleniumUtils;
public class Excelcom2try extends SeleniumUtils implements IHomePage {
public static FileOutputStream opstr = null;
XSSFCellStyle cellStyleRed = null;
SXSSFWorkbook sxssfWorkbook = null;
SXSSFSheet sheet = null;
SXSSFRow row3edit = null;
SXSSFCell Cell = null;
@SuppressWarnings("resource")
public void compare() {
try {
// Create new file for Result
XSSFWorkbook workbook = new XSSFWorkbook();
FileOutputStream fos = new FileOutputStream(new File("\\sd\comparisonfile\ResultFile.xlsx"));
workbook.write(fos);
workbook.close();
Thread.sleep(2000);
// get input for 2 compare excel files
FileInputStream excellFile1 = new FileInputStream(new File("new File("\\sd\comparisonfile\UAT_Relationship.xlsx"));
FileInputStream excellFile2 = new FileInputStream(new File(""\\sd\comparisonfile\Prod_Relationship.xlsx"));
// Copy file 2 for result to highlight not equal cell
FileSystem system = FileSystems.getDefault();
Path original = system.getPath(""\\sd\comparisonfile\Prod_Relationship.xlsx");
Path target = system.getPath(""\\sd\comparisonfile\ResultFile.xlsx");
try {
// Throws an exception if the original file is not found.
Files.copy(original, target, StandardCopyOption.REPLACE_EXISTING);
Reporter.log("Successfully Copy File 2 for result to highlight not equal cell");
Add_Log.info("Successfully Copy File 2 for result to highlight not equal cell");
} catch (IOException ex) {
Reporter.log("Unable to Copy File 2 ");
Add_Log.info("Unable to Copy File 2 ");
}
Thread.sleep(2000);
FileInputStream excelledit3 = new FileInputStream(new File("\\sd\comparisonfile\ResultFile.xlsx"));
// Create Workbook for 2 compare excel files
XSSFWorkbook workbook1 = new XSSFWorkbook(excellFile1);
XSSFWorkbook workbook2 = new XSSFWorkbook(excellFile2);
// Temp workbook
XSSFWorkbook workbook3new = new XSSFWorkbook();
//XSSF cellStyleRed as SXSSFWorkbook cannot have cellstyle color
cellStyleRed = workbook3new.createCellStyle();
cellStyleRed.setFillForegroundColor(IndexedColors.RED.getIndex());
cellStyleRed.setFillPattern(FillPatternType.SOLID_FOREGROUND);
// Get first/desired sheet from the workbook to compare both excel sheets
XSSFSheet sheet1 = workbook1.getSheetAt(0);
XSSFSheet sheet2 = workbook2.getSheetAt(0);
//XSSFWorkbook workbook3new temp convert to SXSSFWorkbook
// keep 100 rows in memory, exceeding rows will be flushed to disk
sxssfWorkbook = new SXSSFWorkbook(100);
sxssfWorkbook.setCompressTempFiles(true);
sheet = sxssfWorkbook.createSheet();
// Compare sheets
if (compareTwoSheets(sheet1, sheet2, sheet)) {
Reporter.log("\n\nThe two excel sheets are Equal");
Add_Log.info("\n\nThe two excel sheets are Equal");
} else {
Reporter.log("\n\nThe two excel sheets are Not Equal");
Add_Log.info("\n\nThe two excel sheets are Not Equal");
}
// close files
excellFile1.close();
excellFile2.close();
// excelledit3.close();
opstr.close();
// dispose of temporary files backing this workbook on disk
}catch (Exception e) {
e.printStackTrace();
}
Reporter.log("Successfully Close All files");
Add_Log.info("Successfully Close All files");
}
// Compare Two Sheets
public boolean compareTwoSheets(XSSFSheet sheet1, XSSFSheet sheet2, SXSSFSheet sheet) throws IOException {
int firstRow1 = sheet1.getFirstRowNum();
int lastRow1 = sheet1.getLastRowNum();
boolean equalSheets = true;
for (int i = firstRow1; i <= lastRow1; i++) {
Reporter.log("\n\nComparing Row " + i);
Add_Log.info("\n\nComparing Row " + i);
XSSFRow row1 = sheet1.getRow(i);
XSSFRow row2 = sheet2.getRow(i);
//row3edit = sheet.getRow(i);
for(int rownum = 0; rownum < 100; rownum++){
row3edit= sheet.createRow(rownum);
}
if (!compareTwoRows(row1, row2, row3edit)) {
equalSheets = false;
// Write if not equal
// Get error here java.lang.NullPointerException for row3edit.setRowStyle(cellStyleRed);
//if disable test is completed Successfully without writing result file
row3edit.setRowStyle(cellStyleRed);
Reporter.log("Row " + i + " - Not Equal");
Add_Log.info("Row " + i + " - Not Equal");
// break;
} else {
Reporter.log("Row " + i + " - Equal");
Add_Log.info("Row " + i + " - Equal");
}
}
// Write if not equal
opstr = new FileOutputStream(""\\sd\comparisonfile\ResultFile.xlsx");
sxssfWorkbook.write(opstr);
opstr.close();
return equalSheets;
}
// Compare Two Rows
public boolean compareTwoRows(XSSFRow row1, XSSFRow row2, SXSSFRow row3edit) throws IOException {
if ((row1 == null) && (row2 == null)) {
return true;
} else if ((row1 == null) || (row2 == null)) {
return false;
}
int firstCell1 = row1.getFirstCellNum();
int lastCell1 = row1.getLastCellNum();
boolean equalRows = true;
// Compare all cells in a row
for (int i = firstCell1; i <= lastCell1; i++) {
XSSFCell cell1 = row1.getCell(i);
XSSFCell cell2 = row2.getCell(i);
for(int cellnum = 0; cellnum < 10; cellnum++){
Cell = row3edit.createCell(cellnum);
String address = new CellReference(Cell).formatAsString();
Cell.setCellValue(address);
}
if (!compareTwoCells(cell1, cell2)) {
equalRows = false;
Reporter.log(" Cell " + i + " - NOt Equal " + cell1 + " === " + cell2);
Add_Log.info(" Cell " + i + " - NOt Equal " + cell1 + " === " + cell2);
break;
} else {
Reporter.log(" Cell " + i + " - Equal " + cell1 + " === " + cell2);
Add_Log.info(" Cell " + i + " - Equal " + cell1 + " === " + cell2);
}
}
return equalRows;
}
// Compare Two Cells
@SuppressWarnings("deprecation")
public static boolean compareTwoCells(XSSFCell cell1, XSSFCell cell2) {
if ((cell1 == null) && (cell2 == null)) {
return true;
} else if ((cell1 == null) || (cell2 == null)) {
return false;
}
boolean equalCells = false;
int type1 = cell1.getCellType();
int type2 = cell2.getCellType();
if (type2 == type1) {
if (cell1.getCellStyle().equals(cell2.getCellStyle())) {
// Compare cells based on its type
switch (cell1.getCellType()) {
case HSSFCell.CELL_TYPE_FORMULA:
if (cell1.getCellFormula().equals(cell2.getCellFormula())) {
equalCells = true;
} else {
}
break;
case HSSFCell.CELL_TYPE_NUMERIC:
if (cell1.getNumericCellValue() == cell2.getNumericCellValue()) {
equalCells = true;
} else {
}
break;
case HSSFCell.CELL_TYPE_STRING:
if (cell1.getStringCellValue().equals(cell2.getStringCellValue())) {
equalCells = true;
} else {
}
break;
case HSSFCell.CELL_TYPE_BLANK:
if (cell2.getCellType() == HSSFCell.CELL_TYPE_BLANK) {
equalCells = true;
} else {
}
break;
case HSSFCell.CELL_TYPE_BOOLEAN:
if (cell1.getBooleanCellValue() == cell2.getBooleanCellValue()) {
equalCells = true;
} else {
}
break;
case HSSFCell.CELL_TYPE_ERROR:
if (cell1.getErrorCellValue() == cell2.getErrorCellValue()) {
equalCells = true;
} else {
}
break;
default:
if (cell1.getStringCellValue().equals(cell2.getStringCellValue())) {
equalCells = true;
} else {
}
break;
}
} else {
return false;
}
} else {
return false;
}
return equalCells;
}
}
一般来说，40'000 行是非常小的数据量，我不会
喜欢建议在这种情况下使用 Streaming。
相反，您可以轻松地在 XSSF 工作簿中保存 40'000 行
提供足够的内存。使用 XSSF 工作簿，您可以修改
直接按照您尝试过的内容。
但是，如果您处理 1 Mill 的非常大的数据。行和许多
列，则以下方法将有所帮助：
1) 参与 Excel 流媒体 Reader
2) 同时读取文件 F1 和 F2 并逐行比较和
逐个细胞
3）根据发现的差异，用新单元格创建一个新行并
将其写入结果文件 F3
您不能修改 SXSSFWorkbook 中的现有单元格。
我已经阅读了所有以前提出的问题，但我找到了解决方案。
How to Edit existing large excel file with SXSSF Streaming api
我有一个现有文件，我需要更新某些内容的内容更改单元格颜色。
我需要修改超过 40,000 行的大数据的 excel 文件。
以下代码中完成的步骤。
- 为结果创建新文件，为结果复制文件 2 以不突出显示 相等的单元格
- 为 2 个比较 excel 个文件创建工作簿 Temp
- XSSFWorkbook XSSF cellStyleRed 作为 SXSSFWorkbook 不能有 cellstyle 颜色
- 在内存中保留 100 行，超过的行将被刷新到磁盘
- 来自两个 excel 文件的 compareTwoRows 不相等会将结果文件中的单元格样式颜色更改为红色。
问题出在下面的代码结果文件是空白的，没有内容。我了解我的代码 不正确，因为 SXSSFWorkbook 正在创建新的 sheet。
如何通过更改单元格颜色来更新结果文件？
package pageobjects;
import java.awt.Color;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardCopyOption;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.sl.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.DataFormatter;
import org.apache.poi.ss.usermodel.FillPatternType;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.util.CellReference;
import org.apache.poi.xssf.streaming.SXSSFCell;
import org.apache.poi.xssf.streaming.SXSSFRow;
import org.apache.poi.xssf.streaming.SXSSFSheet;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFColor;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.testng.Reporter;
import property.IHomePage;
import utility.SeleniumUtils;
public class Excelcom2try extends SeleniumUtils implements IHomePage {
public static FileOutputStream opstr = null;
XSSFCellStyle cellStyleRed = null;
SXSSFWorkbook sxssfWorkbook = null;
SXSSFSheet sheet = null;
SXSSFRow row3edit = null;
SXSSFCell Cell = null;
@SuppressWarnings("resource")
public void compare() {
try {
// Create new file for Result
XSSFWorkbook workbook = new XSSFWorkbook();
FileOutputStream fos = new FileOutputStream(new File("\\sd\comparisonfile\ResultFile.xlsx"));
workbook.write(fos);
workbook.close();
Thread.sleep(2000);
// get input for 2 compare excel files
FileInputStream excellFile1 = new FileInputStream(new File("new File("\\sd\comparisonfile\UAT_Relationship.xlsx"));
FileInputStream excellFile2 = new FileInputStream(new File(""\\sd\comparisonfile\Prod_Relationship.xlsx"));
// Copy file 2 for result to highlight not equal cell
FileSystem system = FileSystems.getDefault();
Path original = system.getPath(""\\sd\comparisonfile\Prod_Relationship.xlsx");
Path target = system.getPath(""\\sd\comparisonfile\ResultFile.xlsx");
try {
// Throws an exception if the original file is not found.
Files.copy(original, target, StandardCopyOption.REPLACE_EXISTING);
Reporter.log("Successfully Copy File 2 for result to highlight not equal cell");
Add_Log.info("Successfully Copy File 2 for result to highlight not equal cell");
} catch (IOException ex) {
Reporter.log("Unable to Copy File 2 ");
Add_Log.info("Unable to Copy File 2 ");
}
Thread.sleep(2000);
FileInputStream excelledit3 = new FileInputStream(new File("\\sd\comparisonfile\ResultFile.xlsx"));
// Create Workbook for 2 compare excel files
XSSFWorkbook workbook1 = new XSSFWorkbook(excellFile1);
XSSFWorkbook workbook2 = new XSSFWorkbook(excellFile2);
// Temp workbook
XSSFWorkbook workbook3new = new XSSFWorkbook();
//XSSF cellStyleRed as SXSSFWorkbook cannot have cellstyle color
cellStyleRed = workbook3new.createCellStyle();
cellStyleRed.setFillForegroundColor(IndexedColors.RED.getIndex());
cellStyleRed.setFillPattern(FillPatternType.SOLID_FOREGROUND);
// Get first/desired sheet from the workbook to compare both excel sheets
XSSFSheet sheet1 = workbook1.getSheetAt(0);
XSSFSheet sheet2 = workbook2.getSheetAt(0);
//XSSFWorkbook workbook3new temp convert to SXSSFWorkbook
// keep 100 rows in memory, exceeding rows will be flushed to disk
sxssfWorkbook = new SXSSFWorkbook(100);
sxssfWorkbook.setCompressTempFiles(true);
sheet = sxssfWorkbook.createSheet();
// Compare sheets
if (compareTwoSheets(sheet1, sheet2, sheet)) {
Reporter.log("\n\nThe two excel sheets are Equal");
Add_Log.info("\n\nThe two excel sheets are Equal");
} else {
Reporter.log("\n\nThe two excel sheets are Not Equal");
Add_Log.info("\n\nThe two excel sheets are Not Equal");
}
// close files
excellFile1.close();
excellFile2.close();
// excelledit3.close();
opstr.close();
// dispose of temporary files backing this workbook on disk
}catch (Exception e) {
e.printStackTrace();
}
Reporter.log("Successfully Close All files");
Add_Log.info("Successfully Close All files");
}
// Compare Two Sheets
public boolean compareTwoSheets(XSSFSheet sheet1, XSSFSheet sheet2, SXSSFSheet sheet) throws IOException {
int firstRow1 = sheet1.getFirstRowNum();
int lastRow1 = sheet1.getLastRowNum();
boolean equalSheets = true;
for (int i = firstRow1; i <= lastRow1; i++) {
Reporter.log("\n\nComparing Row " + i);
Add_Log.info("\n\nComparing Row " + i);
XSSFRow row1 = sheet1.getRow(i);
XSSFRow row2 = sheet2.getRow(i);
//row3edit = sheet.getRow(i);
for(int rownum = 0; rownum < 100; rownum++){
row3edit= sheet.createRow(rownum);
}
if (!compareTwoRows(row1, row2, row3edit)) {
equalSheets = false;
// Write if not equal
// Get error here java.lang.NullPointerException for row3edit.setRowStyle(cellStyleRed);
//if disable test is completed Successfully without writing result file
row3edit.setRowStyle(cellStyleRed);
Reporter.log("Row " + i + " - Not Equal");
Add_Log.info("Row " + i + " - Not Equal");
// break;
} else {
Reporter.log("Row " + i + " - Equal");
Add_Log.info("Row " + i + " - Equal");
}
}
// Write if not equal
opstr = new FileOutputStream(""\\sd\comparisonfile\ResultFile.xlsx");
sxssfWorkbook.write(opstr);
opstr.close();
return equalSheets;
}
// Compare Two Rows
public boolean compareTwoRows(XSSFRow row1, XSSFRow row2, SXSSFRow row3edit) throws IOException {
if ((row1 == null) && (row2 == null)) {
return true;
} else if ((row1 == null) || (row2 == null)) {
return false;
}
int firstCell1 = row1.getFirstCellNum();
int lastCell1 = row1.getLastCellNum();
boolean equalRows = true;
// Compare all cells in a row
for (int i = firstCell1; i <= lastCell1; i++) {
XSSFCell cell1 = row1.getCell(i);
XSSFCell cell2 = row2.getCell(i);
for(int cellnum = 0; cellnum < 10; cellnum++){
Cell = row3edit.createCell(cellnum);
String address = new CellReference(Cell).formatAsString();
Cell.setCellValue(address);
}
if (!compareTwoCells(cell1, cell2)) {
equalRows = false;
Reporter.log(" Cell " + i + " - NOt Equal " + cell1 + " === " + cell2);
Add_Log.info(" Cell " + i + " - NOt Equal " + cell1 + " === " + cell2);
break;
} else {
Reporter.log(" Cell " + i + " - Equal " + cell1 + " === " + cell2);
Add_Log.info(" Cell " + i + " - Equal " + cell1 + " === " + cell2);
}
}
return equalRows;
}
// Compare Two Cells
@SuppressWarnings("deprecation")
public static boolean compareTwoCells(XSSFCell cell1, XSSFCell cell2) {
if ((cell1 == null) && (cell2 == null)) {
return true;
} else if ((cell1 == null) || (cell2 == null)) {
return false;
}
boolean equalCells = false;
int type1 = cell1.getCellType();
int type2 = cell2.getCellType();
if (type2 == type1) {
if (cell1.getCellStyle().equals(cell2.getCellStyle())) {
// Compare cells based on its type
switch (cell1.getCellType()) {
case HSSFCell.CELL_TYPE_FORMULA:
if (cell1.getCellFormula().equals(cell2.getCellFormula())) {
equalCells = true;
} else {
}
break;
case HSSFCell.CELL_TYPE_NUMERIC:
if (cell1.getNumericCellValue() == cell2.getNumericCellValue()) {
equalCells = true;
} else {
}
break;
case HSSFCell.CELL_TYPE_STRING:
if (cell1.getStringCellValue().equals(cell2.getStringCellValue())) {
equalCells = true;
} else {
}
break;
case HSSFCell.CELL_TYPE_BLANK:
if (cell2.getCellType() == HSSFCell.CELL_TYPE_BLANK) {
equalCells = true;
} else {
}
break;
case HSSFCell.CELL_TYPE_BOOLEAN:
if (cell1.getBooleanCellValue() == cell2.getBooleanCellValue()) {
equalCells = true;
} else {
}
break;
case HSSFCell.CELL_TYPE_ERROR:
if (cell1.getErrorCellValue() == cell2.getErrorCellValue()) {
equalCells = true;
} else {
}
break;
default:
if (cell1.getStringCellValue().equals(cell2.getStringCellValue())) {
equalCells = true;
} else {
}
break;
}
} else {
return false;
}
} else {
return false;
}
return equalCells;
}
}
一般来说，40'000 行是非常小的数据量，我不会 喜欢建议在这种情况下使用 Streaming。 相反，您可以轻松地在 XSSF 工作簿中保存 40'000 行 提供足够的内存。使用 XSSF 工作簿，您可以修改 直接按照您尝试过的内容。
但是，如果您处理 1 Mill 的非常大的数据。行和许多 列，则以下方法将有所帮助：
1) 参与 Excel 流媒体 Reader 2) 同时读取文件 F1 和 F2 并逐行比较和 逐个细胞 3）根据发现的差异，用新单元格创建一个新行并 将其写入结果文件 F3
您不能修改 SXSSFWorkbook 中的现有单元格。