servlet导出文件名为中文的excel异常问题解决办法

 

项目中遇到将查询结果导出为一个excel文件，当动态生成的文件名为英文时成功生成，文件名为中文的再次导出浏览器就出一些莫名其妙的问题（导出文件不是一个excel），问题处理方法如下：

action中的代码片段：

                System.out.println("exportExcel");
		String ruleId = request.getParameter("ruleId");
		String ruleName = request.getParameter("ruleName");
		String ruleType = request.getParameter("ruleType");
		String statisticDate = request.getParameter("statisticDate");
		String smsCount = request.getParameter("smsCount");
		try{
		HSSFWorkbook workBook = new HSSFWorkbook();
		HSSFSheet sheet = workBook.createSheet();
		
		HSSFRow row0 = sheet.createRow(0);
		row0.createCell((short)0).setCellValue("规则编号");
		row0.createCell((short)1).setCellValue("规则名称");
		row0.createCell((short)2).setCellValue("规则类型");
		row0.createCell((short)3).setCellValue("发送日期");
		row0.createCell((short)4).setCellValue("发送数量");
		HSSFRow row1 = sheet.createRow(1);
		row1.createCell((short)0).setCellValue(ruleId);
		row1.createCell((short)1).setCellValue(ruleName);
		row1.createCell((short)2).setCellValue(ruleType);
		row1.createCell((short)3).setCellValue(statisticDate);
		row1.createCell((short)4).setCellValue(smsCount);
		
		response.reset(); //清空输出流
		//response.setHeader("Content-disposition", "attachment; filename=短信自动发送-"+ruleName+"-"+statisticDate+".xls");
		String fileName = "短信自动发送-"+ruleName+"-"+statisticDate;
		response.setHeader("Content-disposition", "attachment; filename="+StringtoUTF8.toUtf8String(fileName)+".xls");
		response.setContentType("application/ms-excel;charset=GBK");
		

		ServletOutputStream out = response.getOutputStream();
		workBook.write(out);
		out.flush();
		out.close();

 

处理中文的类：

 写道

 

public class StringtoUTF8 {
public static String toUtf8String(String s) {
StringBuffer sb = new StringBuffer();
for (int i=0;i<s.length();i++){
char c = s.charAt(i);
if (c >= 0 && c <= 255) {
sb.append(c);
} else {
byte[] b;
try {
b = Character.toString(c).getBytes("utf-8");
} catch (Exception ex) {
System.out.println(ex);
b = new byte[0];
}
for (int j = 0; j < b.length; j++) {
int k = b[j];
if (k < 0) k += 256;
sb.append("%" + Integer.toHexString(k).
toUpperCase());
}
}
}
return sb.toString();
}

 

经过上面 StringtoUTF8 处理过的中文字符串可以正常导出excel，问题解决。