pubic InputStream excelFile; // 下载文件流

private String fileName; // 下载文件名称

public String download() throws Exception {

fileName = new String(fileName.getBytes("GBK"),"ISO8859-1") ;

} catch (UnsupportedEncodingException e) {

fileName = timestamp ;

}

return fileName;

}

private String errHandler(){

try {

excelFile = new ByteArrayInputStream("导出失败".getBytes("GBK"));

} catch (UnsupportedEncodingException e) {

e.printStackTrace();

}

return "error" ;

}