使用java在Excel表格中创建数据透视表

Question

如何使用java在数据透视表中设置标题说明。 我必须在Excel表格中使用apache poi创建数据透视表。现在使用java更改行和列标题标签。

Answer 1

import java.io.FileOutputStream; 
import java.io.*; 
import org.apache.poi.ss.usermodel.*; 
import org.apache.poi.ss.util.*; 
import org.apache.poi.xssf.usermodel.*; 
public class readxlsx { 
     public static void main(String[] args) throws Exception{ 
       /* Read the input file that contains the data to pivot */ 
       FileInputStream input_document = new FileInputStream(new File("inputFile.xlsx"));  
       /* Create a POI XSSFWorkbook Object from the input file */ 
       XSSFWorkbook my_xlsx_workbook = new XSSFWorkbook(input_document); 
       /* Read Data to be Pivoted - we have only one worksheet */ 
       XSSFSheet sheet = my_xlsx_workbook.getSheetAt(0); 
       /* Get the reference for Pivot Data */ 
       AreaReference a=new AreaReference("A1:C51"); 
       /* Find out where the Pivot Table needs to be placed */ 
       CellReference b=new CellReference("I5"); 
       /* Create Pivot Table */ 
       XSSFPivotTable pivotTable = sheet.createPivotTable(a,b); 
       /* Add filters */ 
       pivotTable.addReportFilter(0); 
       pivotTable.addRowLabel(1); 
       pivotTable.addColumnLabel(DataConsolidateFunction.SUM, 2); 
       /* Write Pivot Table to File */ 
       FileOutputStream output_file = new FileOutputStream(new File("POI_XLS_Pivot_Example.xlsx")); 
       my_xlsx_workbook.write(output_file); 
       input_document.close(); 
     } 
} 

这可能会帮助您解决问题。