poi实现excel转pdf
时间: 2023-10-16 07:26:34 浏览: 39
要使用poi实现excel转pdf,你需要先导入以下依赖包:
```xml
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>4.1.2</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>4.1.2</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml-schemas</artifactId>
<version>4.1.2</version>
</dependency>
<dependency>
<groupId>org.apache.xmlbeans</groupId>
<artifactId>xmlbeans</artifactId>
<version>3.1.0</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-collections4</artifactId>
<version>4.4</version>
</dependency>
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.5.13.2</version>
</dependency>
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itext-asian</artifactId>
<version>5.2.0</version>
</dependency>
```
然后,你需要使用POI读取Excel文件,并使用iText将其转换为PDF。下面是一个示例代码:
```java
import java.io.File;
import java.io.FileOutputStream;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import com.itextpdf.text.Document;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.pdf.PdfWriter;
public class ExcelToPdfConverter {
public static void convertToPdf(String inputFile, String outputFile) throws Exception {
Workbook workbook = null;
if(inputFile.toLowerCase().endsWith(".xls")) {
workbook = new HSSFWorkbook();
} else if(inputFile.toLowerCase().endsWith(".xlsx")) {
workbook = new XSSFWorkbook();
} else {
throw new IllegalArgumentException("Invalid file extension.");
}
workbook.setActiveSheet(0);
workbook.setFirstVisibleTab(0);
workbook.setSheetOrder("Sheet1", 0);
workbook.createSheet("Sheet2");
workbook.createSheet("Sheet3");
FileOutputStream fos = new FileOutputStream(outputFile);
Document document = new Document(PageSize.A4);
PdfWriter.getInstance(document, fos);
document.open();
for(int i = 0; i < workbook.getNumberOfSheets(); i++) {
document.newPage();
document.add(workbook.getSheetAt(i).getPrintSetup().getHeader());
document.add(workbook.getSheetAt(i).getPrintSetup().getFooter());
}
document.close();
fos.close();
workbook.close();
}
}
```
在这个示例中,我们假设Excel文件只有一个工作表,并将其转换为PDF。你可以根据自己的需求修改代码。