如何使用java中的poi在excel中编写日语字符？

我正在使用POI编写excel工作表，但当我尝试在excel中编写日文字符时遇到了问题。将打印一些ascii字符而不是日文字符。我试过很多方法来解决这个问题，但我做不到。有人能帮我吗

这是我的密码

public void readExcel() throws IOException {

   workbook = new HSSFWorkbook();
   worksheet = workbook.createSheet("FieldCount");

   HSSFFont font = workbook.createFont();
   font.setColor(HSSFFont.COLOR_RED);
   font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);

   // Create the style
   HSSFCellStyle cellStyle = workbook.createCellStyle();
   cellStyle.setFont(font);

   HSSFRow row1 = worksheet.createRow(0);
   HSSFCell cellA1 = row1.createCell((short)0);
   cellA1.setCellStyle(cellStyle);
   cellA1.setCellValue("Object Type");

   HSSFCell cellA2 = row1.createCell((short)1);
   cellA2.setCellStyle(cellStyle);
   cellA2.setCellValue("Object Name");

   HSSFCell cellA3 = row1.createCell((short)2);
   cellA3.setCellStyle(cellStyle);

   cellA3.setCellValue("Script");
   HSSFCell cellA4 = row1.createCell((short)3);
   cellA4.setCellStyle(cellStyle);

   cellA4.setCellValue("Available Script");
   HSSFCell cellA5 = row1.createCell((short)4);
   cellA5.setCellStyle(cellStyle);

   cellA5.setCellValue("Caption");

   i = 1;
}

public void writexsl(Fields fields) {
   System.out.println("\n" + i + "\n");
   try {
      HSSFRow row1 = worksheet.createRow(i);

      HSSFCell cellA1 = row1.createCell((short)0);
      cellA1.setCellValue(fields.ObjectType);
      HSSFCell cellA2 = row1.createCell((short)1);
      cellA2.setCellValue(fields.ObjectName);
      HSSFCell cellA3 = row1.createCell((short)2);
      cellA3.setCellValue(fields.Script);
      HSSFCell cellA4 = row1.createCell((short)3);
      cellA4.setCellValue(fields.ScriptValue);
      HSSFCell cellA5 = row1.createCell((short)4);
      //fields.Cation = URLEncoder.encode(fields.Cation, "UTF-8");
      //fields.Cation = URLDecoder.decode(fields.Cation, "UTF-8"); 

      cellA5.setCellValue(fields.Cation);
      System.out.println("Caption Japanese" + cellA5.getStringCellValue());
      i++;
      System.out.println("write columns");
   }
   catch (Exception e) {
      System.out.println("error" + e);
   }
}

我用

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使用此技术创建的excel文件确实包含UTF-16字符。

是否确保使用最新版本的Apache POI？你确保日语字符正确地进入你的Java代码了吗？是的，我知道了。将poi版本升级到v3.9后，我在excel中获得了日文字符。谢谢你。。

HSSFRichTextString s = new HSSFRichTextString(str);
cell.setCellValue(s);