如何使用POI解析Excel文件中的UTF-8字符

Question

我一直在使用POI成功解析XLS和XLSX文件.但是,我无法从Excel电子表格中正确提取特殊字符,如中文或日文等UTF-8编码字符.我已经想出如何从UTF-8编码的csv或制表符分隔文件中提取数据,但是Excel文件没有运气.有人可以帮忙吗？

(编辑: 评论中的代码段)

HSSFSheet sheet = workbook.getSheet(worksheet); 
HSSFEvaluationWorkbook ewb = HSSFEvaluationWorkbook.create(workbook); 
while (rowCtr <= lastRow && !rowBreakOut) 
{ 
    Row row = sheet.getRow(rowCtr);//rows.next(); 
    for (int col=firstCell; col<lastCell && !breakOut; col++) { 
      Cell cell; 
      cell = row.getCell(col,Row.RETURN_BLANK_AS_NULL); 
      if (ctype == Cell.CELL_TYPE_STRING) { 
         sValue = cell.getStringCellValue(); 
         log.warn("String value = "+sValue); 
         String encoded = URLEncoder.encode(sValue, "UTF-8"); 
         log.warn("URL-encoded with UTF-8: " + encoded); 
         ....

Answer 1

从Excel文件中提取波斯文本时遇到了同样的问题.我正在使用Eclipse,只需转到Project - > Properties并将"text files encoding"更改为UTF-8解决了这个问题.

Answer 2

在POI中，您可以这样使用：

Workbook wb = new HSSFWorkbook();
Sheet sheet = wb.createSheet("new sheet");

// Create a row and put some cells in it. Rows are 0 based.
Row row = sheet.createRow(1);

// Create a new font and alter it.
Font font = wb.createFont();
font.setCharSet(FontCharset.ARABIC.getValue());
font.setFontHeightInPoints((short)24);
font.setFontName("B Nazanin");
font.setItalic(true);
font.setStrikeout(true);

// Fonts are set into a style so create a new one to use.
CellStyle style = wb.createCellStyle();
style.setFont(font);

// Create a cell and put a value in it.
Cell cell = row.createCell(1);
cell.setCellValue("????");
cell.setCellStyle(style);

// Write the output to a file
FileOutputStream fileOut = new FileOutputStream("workbook.xls");
wb.write(fileOut);
fileOut.close();

并可以在FontCharset中使用另一个字符集