您是在问如何重写中的方法吗 Java ? 这似乎是一个非常基本的问题。
你可以有你自己的 SXSSFWorkbook 扩展默认值的类 SXSSFWorkbook 和覆盖 protected SheetDataWriter createSheetDataWriter() . 在那里，如果是压缩的临时文件，您可以返回一个扩展的 GZIPSheetDataWriter 哪些覆盖 protected InputStream decorateInputStream(FileInputStream fis) .
完整的工作示例：

import java.io.*;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.streaming.*;

import java.util.zip.GZIPInputStream;

class OverrideSXSSFWorkbook {

 public static void main(String[] args) throws Exception {

  try (
   SXSSFWorkbook workbook = new MySXSSFWorkbook(); FileOutputStream fileout = new FileOutputStream("Excel.xlsx") ) {

   workbook.setCompressTempFiles(true);

   Sheet sheet = workbook.createSheet();
   Row row;
   Cell cell;

   row = sheet.createRow(0);
   cell = row.createCell(0);
   cell.setCellValue("CellValue");

   workbook.write(fileout);
   workbook.close();
   workbook.dispose();

  }
 }
}

class MySXSSFWorkbook extends SXSSFWorkbook {

 @Override
 protected SheetDataWriter createSheetDataWriter() throws IOException {

  if(isCompressTempFiles()) {
   System.out.println("GZIPSheetDataWriter");
   //return new GZIPSheetDataWriter(getSharedStringSource());

   return new GZIPSheetDataWriter(getSharedStringSource()) {

    @Override
    protected InputStream decorateInputStream(FileInputStream fis) throws IOException {
     System.out.println("overridden decorateInputStream");
     return new GZIPInputStream(fis);
    }
   };

  }
  System.out.println("default SheetDataWriter");
  return new SheetDataWriter(getSharedStringSource());

 }
}