如何通过Java更新Excel表单的字符集

Question

我从数据库中提取俄语字符并生成一个Excel表单。但不幸的是，在提取的Excel表格中，我必须手动将字符集更改为“UNICODE（UTF-8）”，否则我无法看到俄语字符。有没有人知道如何通过java更新这个字符集（我不是要求转换值）？

让我知道是否需要从我的结尾提供任何东西。

Answer 1

是Apache POI的一个选项吗？
Apache POI为您管理编码。返回的所有文字是Java Unicode格式（我相信是UTF-16，而不是UTF-8）

这里是你如何在POI读取Excel表：

try { 

    FileInputStream file = new FileInputStream(new File("C:\\test.xls")); 

    //Get the workbook instance for XLS file 
    HSSFWorkbook workbook = new HSSFWorkbook(file); 

    //Get first sheet from the workbook 
    HSSFSheet sheet = workbook.getSheetAt(0); 

    //Iterate through each rows from first sheet 
    Iterator<Row> rowIterator = sheet.iterator(); 
    while(rowIterator.hasNext()) { 
     Row row = rowIterator.next(); 

     //For each row, iterate through each columns 
     Iterator<Cell> cellIterator = row.cellIterator(); 
     while(cellIterator.hasNext()) { 

      Cell cell = cellIterator.next(); 

      switch(cell.getCellType()) { 
       case Cell.CELL_TYPE_BOOLEAN: 
        System.out.print(cell.getBooleanCellValue() + "\t\t"); 
        break; 
       case Cell.CELL_TYPE_NUMERIC: 
        System.out.print(cell.getNumericCellValue() + "\t\t"); 
        break; 
       case Cell.CELL_TYPE_STRING: 
        System.out.print(cell.getStringCellValue() + "\t\t"); 
        break; 
      } 
     } 
     System.out.println(""); 
    } 
    file.close(); 
    FileOutputStream out = 
     new FileOutputStream(new File("C:\\test.xls")); 
    workbook.write(out); 
    out.close(); 

} catch (FileNotFoundException e) { 
    e.printStackTrace(); 
} catch (IOException e) { 
    e.printStackTrace(); 
}  

来源：http://viralpatel.net/blogs/java-read-write-excel-file-apache-poi/