使用POI的HWPF操作word(未解决中文乱码问题)

public class TestPoi extends HttpServlet
{

public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException
{
File file = new File("D:\\b.doc");
try
{
FileInputStream in = new FileInputStream("D:\\b.doc");
// HWPFFileSystem hwpfsys = new HWPFFileSystem();
// hwpfsys.getStream("d://b.doc");
POIFSFileSystem pfs = new POIFSFileSystem(in);
HWPFDocument hwpf = new HWPFDocument(pfs);
// hwpf.write(hwpfsys.getStream("D://e.doc"));
// Range range = new Range(0, (int) file.length(), hwpf);
Range range = hwpf.getRange();
StyleSheet styleSheet = hwpf.getStyleSheet();

TableIterator it = new TableIterator(range);
//遍历一个DOC中的所有表格
while (it.hasNext())
{
Table tb = (Table) it.next();

//遍历表格的行
for (int i = 0; i < tb.numRows(); i++)
{
TableRow tr = tb.getRow(i);
//遍历表格的列
for (int j = 0; j < tr.numCells(); j++)
{
//往表格中插入数据
TableCell td = tr.getCell(j);
String text = "第" + i + "行第" + j + "列";
int p = td.numParagraphs();
Paragraph para = td.getParagraph(p);
ParagraphProperties pp = new ParagraphProperties();
para.insertBefore(text);
}
}
}
//在表格外面插入内容
CharacterProperties cp = new CharacterProperties();
cp.setBold(true);
cp.setCharacterSpacing(10);
cp.setChse(cp.SPRM_CHARSCALE);
cp.setCapitalized(true);
int p = range.numParagraphs();
Paragraph para = range.getParagraph(p - 1);
para.insertAfter("test poi successful!", cp);
para.insertAfter("测试成功", cp);
response.setContentType("application/vnd.ms-word");
response.setHeader("Content-disposition", "attachment;filename=e.doc");
OutputStream out = response.getOutputStream();
hwpf.write(out);
out.close();
}
catch (Exception ex)
{
ex.printStackTrace();
}
}

public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException
{
doGet(request, response);
}

}