diff --git a/spring-mvc-java/persons.xls b/spring-mvc-java/persons.xls new file mode 100644 index 0000000000..ea270f69cc Binary files /dev/null and b/spring-mvc-java/persons.xls differ diff --git a/spring-mvc-java/persons.xlsx b/spring-mvc-java/persons.xlsx new file mode 100644 index 0000000000..1f58606532 Binary files /dev/null and b/spring-mvc-java/persons.xlsx differ diff --git a/spring-mvc-java/pom.xml b/spring-mvc-java/pom.xml index 9513c81064..ef18cef3e0 100644 --- a/spring-mvc-java/pom.xml +++ b/spring-mvc-java/pom.xml @@ -161,26 +161,11 @@ - - org.apache.poi - poi - ${poi.version} - org.apache.poi poi-ooxml ${poi.version} - - org.apache.poi - poi-ooxml-schemas - ${poi.version} - - - org.jxls - jxls-jexcel - ${jexcel.version} - @@ -395,7 +380,6 @@ 3.16-beta1 - 1.0.6 diff --git a/spring-mvc-java/src/main/java/com/baeldung/excel/ExcelPOIHelper.java b/spring-mvc-java/src/main/java/com/baeldung/excel/ExcelPOIHelper.java index 5cf74aff63..e3658e8f89 100644 --- a/spring-mvc-java/src/main/java/com/baeldung/excel/ExcelPOIHelper.java +++ b/spring-mvc-java/src/main/java/com/baeldung/excel/ExcelPOIHelper.java @@ -1,140 +1,188 @@ package com.baeldung.excel; import org.apache.poi.ss.usermodel.Cell; -import org.apache.poi.ss.usermodel.CellType; -import org.apache.poi.ss.usermodel.CellStyle; -import org.apache.poi.ss.usermodel.IndexedColors; -import org.apache.poi.ss.usermodel.Row; -import org.apache.poi.ss.usermodel.Sheet; -import org.apache.poi.ss.usermodel.Workbook; -import org.apache.poi.xssf.usermodel.XSSFWorkbook; +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.XSSFFont; +import org.apache.poi.xssf.usermodel.XSSFRow; +import org.apache.poi.xssf.usermodel.XSSFSheet; +import org.apache.poi.xssf.usermodel.XSSFWorkbook; +import org.apache.poi.hssf.usermodel.HSSFCell; +import org.apache.poi.hssf.usermodel.HSSFCellStyle; +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.ss.usermodel.DateUtil; -import org.apache.poi.ss.usermodel.FillPatternType; + import java.io.File; -import java.io.FileOutputStream; import java.io.FileInputStream; import java.io.IOException; -import java.io.InputStream; import java.util.Map; import java.util.HashMap; import java.util.ArrayList; -import org.springframework.stereotype.Service; +import java.util.List; -@Service public class ExcelPOIHelper { - public Map> readExcel(String fileLocation) throws IOException { + public Map> readExcel(String fileLocation) throws IOException { - Map> data = new HashMap>(); - FileInputStream file = new FileInputStream(new File(fileLocation)); - Workbook workbook = new XSSFWorkbook(file); - Sheet sheet = workbook.getSheetAt(0); - int i = 0; - for (Row row : sheet) { - data.put(i, new ArrayList()); - for (Cell cell : row) { - switch (cell.getCellTypeEnum()) { - case STRING: - data.get(i) - .add(cell.getRichStringCellValue() - .getString()); - break; - case NUMERIC: - if (DateUtil.isCellDateFormatted(cell)) { - data.get(i) - .add(cell.getDateCellValue() + ""); - } else { - data.get(i) - .add(cell.getNumericCellValue() + ""); - } - break; - case BOOLEAN: - data.get(i) - .add(cell.getBooleanCellValue() + ""); - break; - case FORMULA: - data.get(i) - .add(cell.getCellFormula() + ""); - break; - default: - data.get(i) - .add(" "); + Map> data = new HashMap<>(); + FileInputStream fis = new FileInputStream(new File(fileLocation)); + + if (fileLocation.endsWith(".xls")) { + data = readHSSFWorkbook(fis); + } else if (fileLocation.endsWith(".xlsx")) { + data = readXSSFWorkbook(fis); + } + + int maxNrCols = 0; + + for (List ls : data.values()) { + if (ls.size() > maxNrCols) { + maxNrCols = ls.size(); + } + } + + for (List ls : data.values()) { + if (ls.size() < maxNrCols) { + for (int i = ls.size(); i < maxNrCols; i++) { + ls.add(new MyCell("")); } } - i++; } - if (workbook != null){ - workbook.close(); + + return data; + } + + private String readCellContent(Cell cell) { + String content = ""; + switch (cell.getCellTypeEnum()) { + case STRING: + content = cell.getStringCellValue(); + break; + case NUMERIC: + if (DateUtil.isCellDateFormatted(cell)) { + content = cell.getDateCellValue() + ""; + } else { + content = cell.getNumericCellValue() + ""; + } + break; + case BOOLEAN: + content = cell.getBooleanCellValue() + ""; + break; + case FORMULA: + content = cell.getCellFormula() + ""; + break; + default: + content = ""; + } + return content; + } + + private Map> readHSSFWorkbook(FileInputStream fis) throws IOException { + Map> data = new HashMap<>(); + HSSFWorkbook workbook = null; + try { + workbook = new HSSFWorkbook(fis); + + HSSFSheet sheet = workbook.getSheetAt(0); + for (int i = sheet.getFirstRowNum(); i <= sheet.getLastRowNum(); i++) { + HSSFRow row = sheet.getRow(i); + data.put(i, new ArrayList()); + if (row != null) { + for (int j = 0; j < row.getLastCellNum(); j++) { + HSSFCell cell = row.getCell(j); + if (cell != null) { + HSSFCellStyle cellStyle = cell.getCellStyle(); + + MyCell myCell = new MyCell(); + + HSSFColor bgColor = cellStyle.getFillForegroundColorColor(); + if (bgColor != null) { + short[] rgbColor = bgColor.getTriplet(); + myCell.setBgColor("rgb(" + rgbColor[0] + "," + rgbColor[1] + "," + rgbColor[2] + ")"); + } + HSSFFont font = cell.getCellStyle() + .getFont(workbook); + myCell.setTextSize(font.getFontHeightInPoints() + ""); + if (font.getBold()) { + myCell.setTextWeight("bold"); + } + HSSFColor textColor = font.getHSSFColor(workbook); + if (textColor != null) { + short[] rgbColor = textColor.getTriplet(); + myCell.setTextColor("rgb(" + rgbColor[0] + "," + rgbColor[1] + "," + rgbColor[2] + ")"); + } + myCell.setContent(readCellContent(cell)); + data.get(i) + .add(myCell); + } else { + data.get(i) + .add(new MyCell("")); + } + } + } + } + } finally { + if (workbook != null) { + workbook.close(); + } } return data; } - public void writeExcel() throws IOException { - Workbook workbook = new XSSFWorkbook(); - + private Map> readXSSFWorkbook(FileInputStream fis) throws IOException { + XSSFWorkbook workbook = null; + Map> data = new HashMap<>(); try { - Sheet sheet = workbook.createSheet("Persons"); - sheet.setColumnWidth(0, 6000); - sheet.setColumnWidth(1, 4000); - Row header = sheet.createRow(0); + workbook = new XSSFWorkbook(fis); + XSSFSheet sheet = workbook.getSheetAt(0); - CellStyle headerStyle = workbook.createCellStyle(); + for (int i = sheet.getFirstRowNum(); i <= sheet.getLastRowNum(); i++) { + XSSFRow row = sheet.getRow(i); + data.put(i, new ArrayList()); + if (row != null) { + for (int j = 0; j < row.getLastCellNum(); j++) { + XSSFCell cell = row.getCell(j); + if (cell != null) { + XSSFCellStyle cellStyle = cell.getCellStyle(); - headerStyle.setFillForegroundColor(IndexedColors.LIGHT_BLUE.getIndex()); - headerStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND); - - XSSFFont font = ((XSSFWorkbook) workbook).createFont(); - font.setFontName("Arial"); - font.setFontHeightInPoints((short) 16); - font.setBold(true); - headerStyle.setFont(font); - - Cell headerCell = header.createCell(0); - headerCell.setCellValue("Name"); - headerCell.setCellStyle(headerStyle); - - headerCell = header.createCell(1); - headerCell.setCellValue("Age"); - headerCell.setCellStyle(headerStyle); - - CellStyle style = workbook.createCellStyle(); - style.setWrapText(true); - - Row row = sheet.createRow(2); - Cell cell = row.createCell(0); - cell.setCellValue("John Smith"); - cell.setCellStyle(style); - - cell = row.createCell(1); - cell.setCellValue(20); - cell.setCellStyle(style); - - row = sheet.createRow(3); - cell = row.createCell(0); - cell.setCellValue("Ana Johnson"); - cell.setCellStyle(style); - - cell = row.createCell(1); - cell.setCellValue(30); - cell.setCellStyle(style); - - File currDir = new File("."); - String path = currDir.getAbsolutePath(); - String fileLocation = path.substring(0, path.length() - 1) + "temp.xlsx"; - - FileOutputStream outputStream = new FileOutputStream(fileLocation); - workbook.write(outputStream); - } finally { - if (workbook != null) { - try { - workbook.close(); - } catch (IOException e) { - e.printStackTrace(); + MyCell myCell = new MyCell(); + XSSFColor bgColor = cellStyle.getFillForegroundColorColor(); + if (bgColor != null) { + byte[] rgbColor = bgColor.getRGB(); + 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]) + ")"); + } + XSSFFont font = cellStyle.getFont(); + myCell.setTextSize(font.getFontHeightInPoints() + ""); + if (font.getBold()) { + myCell.setTextWeight("bold"); + } + XSSFColor textColor = font.getXSSFColor(); + if (textColor != null) { + byte[] rgbColor = textColor.getRGB(); + 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]) + ")"); + } + myCell.setContent(readCellContent(cell)); + data.get(i) + .add(myCell); + } else { + data.get(i) + .add(new MyCell("")); + } + } } } + } finally { + if (workbook != null) { + workbook.close(); + } } + return data; } } \ No newline at end of file diff --git a/spring-mvc-java/src/main/java/com/baeldung/excel/JExcelHelper.java b/spring-mvc-java/src/main/java/com/baeldung/excel/JExcelHelper.java deleted file mode 100644 index d0e33bf471..0000000000 --- a/spring-mvc-java/src/main/java/com/baeldung/excel/JExcelHelper.java +++ /dev/null @@ -1,82 +0,0 @@ -package com.baeldung.excel; - -import jxl.Sheet; -import jxl.Workbook; -import jxl.format.Colour; -import jxl.read.biff.BiffException; -import jxl.write.*; -import jxl.write.Number; -import org.springframework.stereotype.Service; - -import java.io.File; -import java.io.IOException; -import java.util.ArrayList; -import java.util.HashMap; -import java.util.Map; - -@Service -public class JExcelHelper { - - public Map> readJExcel(String fileLocation) throws IOException, BiffException { - Map> data = new HashMap<>(); - - Workbook workbook = Workbook.getWorkbook(new File(fileLocation)); - Sheet sheet = workbook.getSheet(0); - int rows = sheet.getRows(); - int columns = sheet.getColumns(); - - for (int i = 0; i < rows; i++) { - data.put(i, new ArrayList<>()); - for (int j = 0; j < columns; j++) { - data.get(i).add(sheet.getCell(j, i).getContents()); - } - } - return data; - } - - public void writeJExcel() throws IOException, WriteException { - WritableWorkbook workbook = null; - try { - File currDir = new File("."); - String path = currDir.getAbsolutePath(); - String fileLocation = path.substring(0, path.length() - 1) + "temp.xls"; - - workbook = Workbook.createWorkbook(new File(fileLocation)); - - WritableSheet sheet = workbook.createSheet("Sheet 1", 0); - - WritableCellFormat headerFormat = new WritableCellFormat(); - WritableFont font = new WritableFont(WritableFont.ARIAL, 16, WritableFont.BOLD); - headerFormat.setFont(font); - headerFormat.setBackground(Colour.LIGHT_BLUE); - headerFormat.setWrap(true); - Label headerLabel = new Label(0, 0, "Name", headerFormat); - sheet.setColumnView(0, 60); - sheet.addCell(headerLabel); - - headerLabel = new Label(1, 0, "Age", headerFormat); - sheet.setColumnView(0, 40); - sheet.addCell(headerLabel); - - WritableCellFormat cellFormat = new WritableCellFormat(); - cellFormat.setWrap(true); - - Label cellLabel = new Label(0, 2, "John Smith", cellFormat); - sheet.addCell(cellLabel); - Number cellNumber = new Number(1, 2, 20, cellFormat); - sheet.addCell(cellNumber); - - cellLabel = new Label(0, 3, "Ana Johnson", cellFormat); - sheet.addCell(cellLabel); - cellNumber = new Number(1, 3, 30, cellFormat); - sheet.addCell(cellNumber); - - workbook.write(); - } finally { - if (workbook != null) { - workbook.close(); - } - } - - } -} \ No newline at end of file diff --git a/spring-mvc-java/src/main/java/com/baeldung/excel/MyCell.java b/spring-mvc-java/src/main/java/com/baeldung/excel/MyCell.java new file mode 100644 index 0000000000..409829bc35 --- /dev/null +++ b/spring-mvc-java/src/main/java/com/baeldung/excel/MyCell.java @@ -0,0 +1,57 @@ +package com.baeldung.excel; + +public class MyCell { + private String content; + private String textColor; + private String bgColor; + private String textSize; + private String textWeight; + + public MyCell() { + } + + public MyCell(String content) { + this.content = content; + } + + public String getContent() { + return content; + } + + public void setContent(String content) { + this.content = content; + } + + public String getTextColor() { + return textColor; + } + + public void setTextColor(String textColor) { + this.textColor = textColor; + } + + public String getBgColor() { + return bgColor; + } + + public void setBgColor(String bgColor) { + this.bgColor = bgColor; + } + + public String getTextSize() { + return textSize; + } + + public void setTextSize(String textSize) { + this.textSize = textSize; + } + + public String getTextWeight() { + return textWeight; + } + + public void setTextWeight(String textWeight) { + this.textWeight = textWeight; + } + +} \ No newline at end of file diff --git a/spring-mvc-java/src/main/java/com/baeldung/spring/web/config/WebConfig.java b/spring-mvc-java/src/main/java/com/baeldung/spring/web/config/WebConfig.java index 9578303554..11be08a79d 100644 --- a/spring-mvc-java/src/main/java/com/baeldung/spring/web/config/WebConfig.java +++ b/spring-mvc-java/src/main/java/com/baeldung/spring/web/config/WebConfig.java @@ -108,11 +108,6 @@ public class WebConfig extends WebMvcConfigurerAdapter { configurer.setUrlPathHelper(urlPathHelper); } - @Bean - public JExcelHelper jExcelHelper() { - return new JExcelHelper(); - } - @Bean public ExcelPOIHelper excelPOIHelper() { return new ExcelPOIHelper(); diff --git a/spring-mvc-java/src/main/java/com/baeldung/web/controller/ExcelController.java b/spring-mvc-java/src/main/java/com/baeldung/web/controller/ExcelController.java index 810282dd65..f76f7441a5 100644 --- a/spring-mvc-java/src/main/java/com/baeldung/web/controller/ExcelController.java +++ b/spring-mvc-java/src/main/java/com/baeldung/web/controller/ExcelController.java @@ -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> 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> data = excelPOIHelper.readExcel(fileLocation); + if (fileLocation.endsWith(".xlsx") || fileLocation.endsWith(".xls")) { + Map> 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"; - } - } \ No newline at end of file diff --git a/spring-mvc-java/src/main/webapp/WEB-INF/view/excel.jsp b/spring-mvc-java/src/main/webapp/WEB-INF/view/excel.jsp index b50687df15..bcb5a31371 100644 --- a/spring-mvc-java/src/main/webapp/WEB-INF/view/excel.jsp +++ b/spring-mvc-java/src/main/webapp/WEB-INF/view/excel.jsp @@ -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"%> @@ -8,49 +8,43 @@ Excel Processing - - - - - - + + + -
- - -
-
-${message } -

-
- -
-

-Read file using JExcel     -Read file using Apache POI -

+
+ + +
+
+
+ +
+
${message } +
+
-File content: - - - - - - - - - -
${cell}
- -

-
- -
-
-
- -
+
+ +
+
+
+ + + + + + + + + + +
+ ${cell.content} +
+ - \ No newline at end of file