Bael 682 (#1124)
* upload, read excel files with mvc * formatting * add excel files * update excel files
This commit is contained in:
lor6
KevinGilmore
parent
935b815ad4
commit
8fe5a2ac72
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@ -161,26 +161,11 @@
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</dependency>
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<!-- excel -->
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<dependency>
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<groupId>org.apache.poi</groupId>
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<artifactId>poi</artifactId>
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<version>${poi.version}</version>
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</dependency>
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<dependency>
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<groupId>org.apache.poi</groupId>
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<artifactId>poi-ooxml</artifactId>
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<version>${poi.version}</version>
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</dependency>
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<dependency>
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<groupId>org.apache.poi</groupId>
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<artifactId>poi-ooxml-schemas</artifactId>
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<version>${poi.version}</version>
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</dependency>
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<dependency>
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<groupId>org.jxls</groupId>
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<artifactId>jxls-jexcel</artifactId>
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<version>${jexcel.version}</version>
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</dependency>
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</dependencies>
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@ -395,7 +380,6 @@
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<!-- excel -->
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<poi.version>3.16-beta1</poi.version>
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<jexcel.version>1.0.6</jexcel.version>
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</properties>
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</project>
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@ -1,140 +1,188 @@
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package com.baeldung.excel;
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import org.apache.poi.ss.usermodel.Cell;
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import org.apache.poi.ss.usermodel.CellType;
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import org.apache.poi.ss.usermodel.CellStyle;
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import org.apache.poi.ss.usermodel.IndexedColors;
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import org.apache.poi.ss.usermodel.Row;
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import org.apache.poi.ss.usermodel.Sheet;
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import org.apache.poi.ss.usermodel.Workbook;
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import org.apache.poi.xssf.usermodel.XSSFWorkbook;
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import org.apache.poi.xssf.usermodel.XSSFCell;
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import org.apache.poi.xssf.usermodel.XSSFCellStyle;
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import org.apache.poi.xssf.usermodel.XSSFColor;
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import org.apache.poi.xssf.usermodel.XSSFFont;
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import org.apache.poi.xssf.usermodel.XSSFRow;
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import org.apache.poi.xssf.usermodel.XSSFSheet;
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import org.apache.poi.xssf.usermodel.XSSFWorkbook;
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import org.apache.poi.hssf.usermodel.HSSFCell;
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import org.apache.poi.hssf.usermodel.HSSFCellStyle;
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import org.apache.poi.hssf.usermodel.HSSFFont;
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import org.apache.poi.hssf.usermodel.HSSFRow;
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import org.apache.poi.hssf.usermodel.HSSFSheet;
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import org.apache.poi.hssf.usermodel.HSSFWorkbook;
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import org.apache.poi.hssf.util.HSSFColor;
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import org.apache.poi.ss.usermodel.DateUtil;
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import org.apache.poi.ss.usermodel.FillPatternType;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Map;
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import java.util.HashMap;
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import java.util.ArrayList;
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import org.springframework.stereotype.Service;
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import java.util.List;
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@Service
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public class ExcelPOIHelper {
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public Map<Integer, ArrayList<String>> readExcel(String fileLocation) throws IOException {
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public Map<Integer, List<MyCell>> readExcel(String fileLocation) throws IOException {
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Map<Integer, ArrayList<String>> data = new HashMap<Integer, ArrayList<String>>();
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FileInputStream file = new FileInputStream(new File(fileLocation));
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Workbook workbook = new XSSFWorkbook(file);
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Sheet sheet = workbook.getSheetAt(0);
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int i = 0;
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for (Row row : sheet) {
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data.put(i, new ArrayList<String>());
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for (Cell cell : row) {
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switch (cell.getCellTypeEnum()) {
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case STRING:
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data.get(i)
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.add(cell.getRichStringCellValue()
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.getString());
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break;
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case NUMERIC:
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if (DateUtil.isCellDateFormatted(cell)) {
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data.get(i)
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.add(cell.getDateCellValue() + "");
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} else {
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data.get(i)
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.add(cell.getNumericCellValue() + "");
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}
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break;
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case BOOLEAN:
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data.get(i)
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.add(cell.getBooleanCellValue() + "");
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break;
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case FORMULA:
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data.get(i)
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.add(cell.getCellFormula() + "");
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break;
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default:
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data.get(i)
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.add(" ");
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Map<Integer, List<MyCell>> data = new HashMap<>();
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FileInputStream fis = new FileInputStream(new File(fileLocation));
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if (fileLocation.endsWith(".xls")) {
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data = readHSSFWorkbook(fis);
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} else if (fileLocation.endsWith(".xlsx")) {
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data = readXSSFWorkbook(fis);
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}
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int maxNrCols = 0;
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for (List<MyCell> ls : data.values()) {
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if (ls.size() > maxNrCols) {
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maxNrCols = ls.size();
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}
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}
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for (List<MyCell> ls : data.values()) {
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if (ls.size() < maxNrCols) {
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for (int i = ls.size(); i < maxNrCols; i++) {
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ls.add(new MyCell(""));
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}
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}
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i++;
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}
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if (workbook != null){
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workbook.close();
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return data;
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}
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private String readCellContent(Cell cell) {
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String content = "";
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switch (cell.getCellTypeEnum()) {
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case STRING:
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content = cell.getStringCellValue();
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break;
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case NUMERIC:
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if (DateUtil.isCellDateFormatted(cell)) {
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content = cell.getDateCellValue() + "";
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} else {
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content = cell.getNumericCellValue() + "";
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}
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break;
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case BOOLEAN:
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content = cell.getBooleanCellValue() + "";
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break;
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case FORMULA:
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content = cell.getCellFormula() + "";
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break;
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default:
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content = "";
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}
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return content;
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}
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private Map<Integer, List<MyCell>> readHSSFWorkbook(FileInputStream fis) throws IOException {
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Map<Integer, List<MyCell>> data = new HashMap<>();
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HSSFWorkbook workbook = null;
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try {
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workbook = new HSSFWorkbook(fis);
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HSSFSheet sheet = workbook.getSheetAt(0);
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for (int i = sheet.getFirstRowNum(); i <= sheet.getLastRowNum(); i++) {
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HSSFRow row = sheet.getRow(i);
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data.put(i, new ArrayList<MyCell>());
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if (row != null) {
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for (int j = 0; j < row.getLastCellNum(); j++) {
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HSSFCell cell = row.getCell(j);
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if (cell != null) {
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HSSFCellStyle cellStyle = cell.getCellStyle();
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MyCell myCell = new MyCell();
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HSSFColor bgColor = cellStyle.getFillForegroundColorColor();
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if (bgColor != null) {
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short[] rgbColor = bgColor.getTriplet();
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myCell.setBgColor("rgb(" + rgbColor[0] + "," + rgbColor[1] + "," + rgbColor[2] + ")");
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}
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HSSFFont font = cell.getCellStyle()
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.getFont(workbook);
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myCell.setTextSize(font.getFontHeightInPoints() + "");
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if (font.getBold()) {
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myCell.setTextWeight("bold");
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}
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HSSFColor textColor = font.getHSSFColor(workbook);
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if (textColor != null) {
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short[] rgbColor = textColor.getTriplet();
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myCell.setTextColor("rgb(" + rgbColor[0] + "," + rgbColor[1] + "," + rgbColor[2] + ")");
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}
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myCell.setContent(readCellContent(cell));
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data.get(i)
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.add(myCell);
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} else {
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data.get(i)
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.add(new MyCell(""));
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}
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}
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}
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}
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} finally {
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if (workbook != null) {
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workbook.close();
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}
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}
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return data;
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}
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public void writeExcel() throws IOException {
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Workbook workbook = new XSSFWorkbook();
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private Map<Integer, List<MyCell>> readXSSFWorkbook(FileInputStream fis) throws IOException {
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XSSFWorkbook workbook = null;
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Map<Integer, List<MyCell>> data = new HashMap<>();
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try {
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Sheet sheet = workbook.createSheet("Persons");
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sheet.setColumnWidth(0, 6000);
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sheet.setColumnWidth(1, 4000);
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Row header = sheet.createRow(0);
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workbook = new XSSFWorkbook(fis);
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XSSFSheet sheet = workbook.getSheetAt(0);
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CellStyle headerStyle = workbook.createCellStyle();
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for (int i = sheet.getFirstRowNum(); i <= sheet.getLastRowNum(); i++) {
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XSSFRow row = sheet.getRow(i);
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data.put(i, new ArrayList<MyCell>());
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if (row != null) {
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for (int j = 0; j < row.getLastCellNum(); j++) {
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XSSFCell cell = row.getCell(j);
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if (cell != null) {
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XSSFCellStyle cellStyle = cell.getCellStyle();
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headerStyle.setFillForegroundColor(IndexedColors.LIGHT_BLUE.getIndex());
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headerStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);
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XSSFFont font = ((XSSFWorkbook) workbook).createFont();
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font.setFontName("Arial");
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font.setFontHeightInPoints((short) 16);
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font.setBold(true);
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headerStyle.setFont(font);
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Cell headerCell = header.createCell(0);
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headerCell.setCellValue("Name");
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headerCell.setCellStyle(headerStyle);
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headerCell = header.createCell(1);
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headerCell.setCellValue("Age");
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headerCell.setCellStyle(headerStyle);
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CellStyle style = workbook.createCellStyle();
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style.setWrapText(true);
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Row row = sheet.createRow(2);
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Cell cell = row.createCell(0);
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cell.setCellValue("John Smith");
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cell.setCellStyle(style);
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cell = row.createCell(1);
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cell.setCellValue(20);
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cell.setCellStyle(style);
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row = sheet.createRow(3);
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cell = row.createCell(0);
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cell.setCellValue("Ana Johnson");
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cell.setCellStyle(style);
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cell = row.createCell(1);
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cell.setCellValue(30);
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cell.setCellStyle(style);
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File currDir = new File(".");
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String path = currDir.getAbsolutePath();
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String fileLocation = path.substring(0, path.length() - 1) + "temp.xlsx";
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FileOutputStream outputStream = new FileOutputStream(fileLocation);
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workbook.write(outputStream);
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} finally {
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if (workbook != null) {
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try {
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workbook.close();
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} catch (IOException e) {
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e.printStackTrace();
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MyCell myCell = new MyCell();
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XSSFColor bgColor = cellStyle.getFillForegroundColorColor();
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if (bgColor != null) {
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byte[] rgbColor = bgColor.getRGB();
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myCell.setBgColor("rgb(" + (rgbColor[0] < 0 ? (rgbColor[0] + 0xff) : rgbColor[0]) + "," + (rgbColor[1] < 0 ? (rgbColor[1] + 0xff) : rgbColor[1]) + "," + (rgbColor[2] < 0 ? (rgbColor[2] + 0xff) : rgbColor[2]) + ")");
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}
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XSSFFont font = cellStyle.getFont();
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myCell.setTextSize(font.getFontHeightInPoints() + "");
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if (font.getBold()) {
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myCell.setTextWeight("bold");
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}
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XSSFColor textColor = font.getXSSFColor();
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if (textColor != null) {
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byte[] rgbColor = textColor.getRGB();
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myCell.setTextColor("rgb(" + (rgbColor[0] < 0 ? (rgbColor[0] + 0xff) : rgbColor[0]) + "," + (rgbColor[1] < 0 ? (rgbColor[1] + 0xff) : rgbColor[1]) + "," + (rgbColor[2] < 0 ? (rgbColor[2] + 0xff) : rgbColor[2]) + ")");
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}
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myCell.setContent(readCellContent(cell));
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data.get(i)
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.add(myCell);
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} else {
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data.get(i)
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.add(new MyCell(""));
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}
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}
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}
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}
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} finally {
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if (workbook != null) {
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workbook.close();
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}
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}
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return data;
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}
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}
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@ -1,82 +0,0 @@
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package com.baeldung.excel;
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import jxl.Sheet;
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import jxl.Workbook;
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import jxl.format.Colour;
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import jxl.read.biff.BiffException;
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import jxl.write.*;
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import jxl.write.Number;
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import org.springframework.stereotype.Service;
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import java.io.File;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.Map;
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@Service
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public class JExcelHelper {
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public Map<Integer, ArrayList<String>> readJExcel(String fileLocation) throws IOException, BiffException {
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Map<Integer, ArrayList<String>> data = new HashMap<>();
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Workbook workbook = Workbook.getWorkbook(new File(fileLocation));
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Sheet sheet = workbook.getSheet(0);
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int rows = sheet.getRows();
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int columns = sheet.getColumns();
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for (int i = 0; i < rows; i++) {
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data.put(i, new ArrayList<>());
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for (int j = 0; j < columns; j++) {
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data.get(i).add(sheet.getCell(j, i).getContents());
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}
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}
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return data;
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}
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public void writeJExcel() throws IOException, WriteException {
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WritableWorkbook workbook = null;
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try {
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File currDir = new File(".");
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String path = currDir.getAbsolutePath();
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String fileLocation = path.substring(0, path.length() - 1) + "temp.xls";
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workbook = Workbook.createWorkbook(new File(fileLocation));
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WritableSheet sheet = workbook.createSheet("Sheet 1", 0);
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WritableCellFormat headerFormat = new WritableCellFormat();
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WritableFont font = new WritableFont(WritableFont.ARIAL, 16, WritableFont.BOLD);
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headerFormat.setFont(font);
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headerFormat.setBackground(Colour.LIGHT_BLUE);
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headerFormat.setWrap(true);
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Label headerLabel = new Label(0, 0, "Name", headerFormat);
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sheet.setColumnView(0, 60);
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sheet.addCell(headerLabel);
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headerLabel = new Label(1, 0, "Age", headerFormat);
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sheet.setColumnView(0, 40);
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sheet.addCell(headerLabel);
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WritableCellFormat cellFormat = new WritableCellFormat();
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cellFormat.setWrap(true);
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Label cellLabel = new Label(0, 2, "John Smith", cellFormat);
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sheet.addCell(cellLabel);
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Number cellNumber = new Number(1, 2, 20, cellFormat);
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sheet.addCell(cellNumber);
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cellLabel = new Label(0, 3, "Ana Johnson", cellFormat);
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sheet.addCell(cellLabel);
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cellNumber = new Number(1, 3, 30, cellFormat);
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sheet.addCell(cellNumber);
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workbook.write();
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} finally {
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if (workbook != null) {
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workbook.close();
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}
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}
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}
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}
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@ -0,0 +1,57 @@
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package com.baeldung.excel;
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public class MyCell {
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private String content;
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private String textColor;
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private String bgColor;
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private String textSize;
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private String textWeight;
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public MyCell() {
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}
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public MyCell(String content) {
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this.content = content;
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}
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public String getContent() {
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return content;
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}
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public void setContent(String content) {
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this.content = content;
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}
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public String getTextColor() {
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return textColor;
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}
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public void setTextColor(String textColor) {
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this.textColor = textColor;
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}
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public String getBgColor() {
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return bgColor;
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}
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public void setBgColor(String bgColor) {
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this.bgColor = bgColor;
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}
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public String getTextSize() {
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return textSize;
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}
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public void setTextSize(String textSize) {
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this.textSize = textSize;
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}
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public String getTextWeight() {
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return textWeight;
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}
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public void setTextWeight(String textWeight) {
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this.textWeight = textWeight;
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}
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}
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@ -108,11 +108,6 @@ public class WebConfig extends WebMvcConfigurerAdapter {
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configurer.setUrlPathHelper(urlPathHelper);
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}
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@Bean
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public JExcelHelper jExcelHelper() {
|
||||
return new JExcelHelper();
|
||||
}
|
||||
|
||||
@Bean
|
||||
public ExcelPOIHelper excelPOIHelper() {
|
||||
return new ExcelPOIHelper();
|
||||
|
|
|
|||
|
|
@ -10,20 +10,15 @@ import java.io.FileOutputStream;
|
|||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import com.baeldung.excel.*;
|
||||
import jxl.read.biff.BiffException;
|
||||
import java.util.Map;
|
||||
import java.util.ArrayList;
|
||||
import java.util.List;
|
||||
import javax.annotation.Resource;
|
||||
import jxl.write.WriteException;
|
||||
|
||||
@Controller
|
||||
public class ExcelController {
|
||||
|
||||
private String fileLocation;
|
||||
|
||||
@Resource(name = "jExcelHelper")
|
||||
private JExcelHelper jExcelHelper;
|
||||
|
||||
@Resource(name = "excelPOIHelper")
|
||||
private ExcelPOIHelper excelPOIHelper;
|
||||
|
||||
|
|
@ -45,36 +40,19 @@ public class ExcelController {
|
|||
}
|
||||
f.flush();
|
||||
f.close();
|
||||
System.out.println(fileLocation);
|
||||
model.addAttribute("message", "File: " + file.getOriginalFilename() + " has been uploaded successfully!");
|
||||
return "excel";
|
||||
}
|
||||
|
||||
@RequestMapping(method = RequestMethod.GET, value = "/readJExcel")
|
||||
public String readJExcel(Model model) throws IOException, BiffException {
|
||||
|
||||
if (fileLocation != null) {
|
||||
if (fileLocation.endsWith(".xls")) {
|
||||
Map<Integer, ArrayList<String>> data = jExcelHelper.readJExcel(fileLocation);
|
||||
model.addAttribute("data", data);
|
||||
} else {
|
||||
model.addAttribute("message", "Not a valid .xls file!");
|
||||
}
|
||||
} else {
|
||||
model.addAttribute("message", "File missing! Please upload an excel file.");
|
||||
}
|
||||
return "excel";
|
||||
}
|
||||
|
||||
@RequestMapping(method = RequestMethod.GET, value = "/readPOI")
|
||||
public String readPOI(Model model) throws IOException {
|
||||
|
||||
if (fileLocation != null) {
|
||||
if (fileLocation.endsWith(".xlsx")) {
|
||||
Map<Integer, ArrayList<String>> data = excelPOIHelper.readExcel(fileLocation);
|
||||
if (fileLocation.endsWith(".xlsx") || fileLocation.endsWith(".xls")) {
|
||||
Map<Integer, List<MyCell>> data = excelPOIHelper.readExcel(fileLocation);
|
||||
model.addAttribute("data", data);
|
||||
} else {
|
||||
model.addAttribute("message", "Not a valid .xlsx file!");
|
||||
model.addAttribute("message", "Not a valid excel file!");
|
||||
}
|
||||
} else {
|
||||
model.addAttribute("message", "File missing! Please upload an excel file.");
|
||||
|
|
@ -82,24 +60,4 @@ public class ExcelController {
|
|||
return "excel";
|
||||
}
|
||||
|
||||
@RequestMapping(method = RequestMethod.POST, value = "/writeJExcel")
|
||||
public String writeJExcel(Model model) throws IOException, BiffException, WriteException {
|
||||
|
||||
jExcelHelper.writeJExcel();
|
||||
|
||||
model.addAttribute("message", "Write successful!");
|
||||
|
||||
return "excel";
|
||||
}
|
||||
|
||||
@RequestMapping(method = RequestMethod.POST, value = "/writePOI")
|
||||
public String writePOI(Model model) throws IOException {
|
||||
|
||||
excelPOIHelper.writeExcel();
|
||||
|
||||
model.addAttribute("message", "Write successful!");
|
||||
|
||||
return "excel";
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -1,6 +1,6 @@
|
|||
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
|
||||
pageEncoding="ISO-8859-1"%>
|
||||
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
|
||||
pageEncoding="ISO-8859-1"%>
|
||||
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
|
||||
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
||||
<html>
|
||||
<head>
|
||||
|
|
@ -8,49 +8,43 @@
|
|||
<title>Excel Processing</title>
|
||||
</head>
|
||||
<body>
|
||||
<c:url value="/uploadExcelFile" var="uploadFileUrl" />
|
||||
<c:url value="/excelProcessing" var="resetUrl" />
|
||||
<c:url value="/readJExcel" var="readJExcelUrl" />
|
||||
<c:url value="/writeJExcel" var="writeJExcelUrl" />
|
||||
<c:url value="/readPOI" var="readPOIUrl" />
|
||||
<c:url value="/writePOI" var="writePOIUrl" />
|
||||
<c:url value="/uploadExcelFile" var="uploadFileUrl" />
|
||||
<c:url value="/excelProcessing" var="resetUrl" />
|
||||
<c:url value="/readPOI" var="readPOIUrl" />
|
||||
|
||||
<form method="post" enctype="multipart/form-data" action="${uploadFileUrl}" >
|
||||
<input type="file" name="file" accept=".xls,.xlsx"/>
|
||||
<input type="submit" value="Upload file"/>
|
||||
</form>
|
||||
<br />
|
||||
${message }
|
||||
<br /> <br />
|
||||
<form method="GET" action="${resetUrl}" >
|
||||
<input type="submit" value="Reset" />
|
||||
</form>
|
||||
<br /> <br />
|
||||
<a href="${readJExcelUrl}">Read file using JExcel</a>
|
||||
<a href="${readPOIUrl}">Read file using Apache POI</a>
|
||||
<br /> <br />
|
||||
<form method="post" enctype="multipart/form-data" action="${uploadFileUrl}">
|
||||
<input type="file" name="file" accept=".xls,.xlsx" />
|
||||
<input type="submit" value="Upload file" />
|
||||
</form>
|
||||
<br />
|
||||
<form method="GET" action="${resetUrl}">
|
||||
<input type="submit" value="Reset" />
|
||||
</form>
|
||||
<br /> ${message }
|
||||
<br />
|
||||
<br />
|
||||
|
||||
File content:
|
||||
<c:if test="${not empty data}">
|
||||
<table style="border:1px solid black;border-collapse:collapse;">
|
||||
<c:forEach items="${data}" var="row">
|
||||
<tr>
|
||||
<c:forEach items="${row.value}" var="cell">
|
||||
<td style="border:1px solid black">${cell}</td>
|
||||
</c:forEach>
|
||||
</tr>
|
||||
</c:forEach>
|
||||
</table>
|
||||
</c:if>
|
||||
<br /> <br />
|
||||
<form action="${writeJExcelUrl}" method="POST">
|
||||
<input type="submit" value="Write to file using JExcel" />
|
||||
</form>
|
||||
<br />
|
||||
<form action="${writePOIUrl}" method="POST">
|
||||
<input type="submit" value="Write to file using Apache POI" />
|
||||
</form>
|
||||
<form action="${readPOIUrl }">
|
||||
<input type="submit" value="Display file content" />
|
||||
</form>
|
||||
<br />
|
||||
<br />
|
||||
|
||||
<c:if test="${not empty data}">
|
||||
<table style="border: 1px solid black; border-collapse: collapse;">
|
||||
<c:forEach items="${data}" var="row">
|
||||
<tr>
|
||||
<c:forEach items="${row.value}" var="cell">
|
||||
<td style="border:1px solid black;height:20px;width:100px;
|
||||
background-color:${cell.bgColor};color:${cell.textColor};
|
||||
font-weight:${cell.textWeight};font-size:${cell.textSize}pt;">
|
||||
${cell.content}
|
||||
</td>
|
||||
</c:forEach>
|
||||
</tr>
|
||||
</c:forEach>
|
||||
</table>
|
||||
</c:if>
|
||||
|
||||
|
||||
</body>
|
||||
</html>
|
||||
Loading…
Reference in New Issue