有人能指导我如何在Java中写入Excel文件吗？我不理解我在网上找到的链接。你能给我发送一个链接或者任何可以让我跟进的东西吗？
谢谢， J
使用Java向Excel写入数据
9
- JJunior
3
你在说哪些链接？有很多不同的方法可以从Java写入Excel文件。你是否遇到了特定的API或库的问题？ - FloppyDisk
可能是JSP生成可下载的Excel电子表格（XLS）的重复问题。 - Matt Ball
GemBox.Spreadsheet for Java非常快速，API易于使用，这里有一个写作示例。 - bellpatricia
7个回答
13
除了Apache POI之外，另一种选择是JExcelAPI，它（在我看来）具有更易于使用的API。这里有一些示例：
WritableWorkbook workbook = Workbook.createWorkbook(new File("output.xls"));
WritableSheet sheet = workbook.createSheet("First Sheet", 0);
Label label = new Label(0, 2, "A label record");
sheet.addCell(label);
Number number = new Number(3, 4, 3.1459);
sheet.addCell(number);
- matt b
1
非常棒的API。比Apache POI容易得多。谢谢！ - FAtBalloon
2
我将为您提供一个示例，展示如何编写Excel；在pom.xml中使用此示例。
<dependency>
<groupId>net.sf.jxls</groupId>
<artifactId>jxls-core</artifactId>
<version>0.9</version>
</dependency>
模型类：
public class Products {
private String productCode1;
private String productCode2;
private String productCode3;
constructors,setters and getters
}
主类：
public class WriteExcel {
public void writeExcel() {
Collection staff = new HashSet();
staff.add(new Products("101R15ss0100", "PALss Kids 1.5 A360 ", "321"));
staff.add(new Products("101R1ss50100", "PAL sKids 1.5 A360 ", "236"));
Map beans = new HashMap();
beans.put("products", staff);
XLSTransformer transformer = new XLSTransformer();
try {
transformer.transformXLS(templateFileName, beans, destFileName);
System.out.println("Completed!!");
} catch (ParsePropertyException e) {
System.out.println("In ParsePropertyException");
e.printStackTrace();
} catch (IOException e) {
System.out.println("In IOException");
e.printStackTrace();
}
}
public static void main(String[] args) {
WriteExcel writeexcel = new WriteExcel();
writeexcel.writeExcel();
}
}
- user2663609
1
public class ExcelUtils {
private static XSSFSheet ExcelWSheet;
private static XSSFWorkbook ExcelWBook;
private static XSSFCell Cell;
private static XSSFRow Row;
File fileName = new File("C:\\Users\\satekuma\\Pro\\Fund.xlsx");
public void setExcelFile(File Path, String SheetName) throws Exception {
try {
FileInputStream ExcelFile = new FileInputStream(Path);
ExcelWBook = new XSSFWorkbook(ExcelFile);
ExcelWSheet = ExcelWBook.getSheet(SheetName);
} catch (Exception e) {
throw (e);
}
}
public static String getCellData(int RowNum, int ColNum) throws Exception {
try {
Cell = ExcelWSheet.getRow(RowNum).getCell(ColNum);
String CellData = Cell.getStringCellValue();
return CellData;
} catch (Exception e) {
return "";
}
}
public static void setCellData(String Result, int RowNum, int ColNum, File Path) throws Exception {
try {
Row = ExcelWSheet.createRow(RowNum - 1);
Cell = Row.createCell(ColNum - 1);
Cell.setCellValue(Result);
FileOutputStream fileOut = new FileOutputStream(Path);
ExcelWBook.write(fileOut);
fileOut.flush();
fileOut.close();
} catch (Exception e) {
throw (e);
}
}
}
- satender
1
这里是编写在Excel文件(.xls)中写入数据的基本代码。
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Date;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFDataFormat;
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;
public class Export2Excel {
public static void main(String[] args) {
try {
//create .xls and create a worksheet.
FileOutputStream fos = new FileOutputStream("D:\\data2excel.xls");
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet worksheet = workbook.createSheet("My Worksheet");
//Create ROW-1
HSSFRow row1 = worksheet.createRow((short) 0);
//Create COL-A from ROW-1 and set data
HSSFCell cellA1 = row1.createCell((short) 0);
cellA1.setCellValue("Sno");
HSSFCellStyle cellStyle = workbook.createCellStyle();
cellStyle.setFillForegroundColor(HSSFColor.GOLD.index);
cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
cellA1.setCellStyle(cellStyle);
//Create COL-B from row-1 and set data
HSSFCell cellB1 = row1.createCell((short) 1);
cellB1.setCellValue("Name");
cellStyle = workbook.createCellStyle();
cellStyle.setFillForegroundColor(HSSFColor.LIGHT_CORNFLOWER_BLUE.index);
cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
cellB1.setCellStyle(cellStyle);
//Create COL-C from row-1 and set data
HSSFCell cellC1 = row1.createCell((short) 2);
cellC1.setCellValue(true);
//Create COL-D from row-1 and set data
HSSFCell cellD1 = row1.createCell((short) 3);
cellD1.setCellValue(new Date());
cellStyle = workbook.createCellStyle();
cellStyle.setDataFormat(HSSFDataFormat
.getBuiltinFormat("m/d/yy h:mm"));
cellD1.setCellStyle(cellStyle);
//Save the workbook in .xls file
workbook.write(fos);
fos.flush();
fos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
注意：您需要从以下链接下载jar库：http://www.java2s.com/Code/JarDownload/poi/poi-3.9.jar.zip
- Rahul Raina
0
在Java中写入Excel文件时，我使用Apache的POI库。一旦你掌握了它，我发现它相当简单易懂。Java World有一个很好的教程，介绍如何使用POI入门，我觉得非常有帮助。
- FloppyDisk
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