struts 导出csv

        private InputStream inputStream;

	private String fileName;
	@Action(results = { @Result(name = "success", type = "stream", params = { "contentType",
			"application/x-msdownload,charset=GBK", "inputName", "inputStream", "contentDisposition",
			"attachment;filename=\"${fileName}\"","contentCharSet","GBK" }) })
			
			
	try {
			fileName = new String(("订餐列表" + String.format("%tF", new Date()) + ".csv").getBytes("GBK"), "ISO8859-1");
			inputStream = new BufferedInputStream(new ByteArrayInputStream(res.getBytes("gbk")));
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
		
    public InputStream getInputStream() {
		return inputStream;
	}

	public void setInputStream(InputStream inputStream) {
		this.inputStream = inputStream;
	}

	public String getFileName() {
		return fileName;
	}

	public void setFileName(String fileName) {
		this.fileName = fileName;
	}
		
        

如果乱码，检查是否将编码格式转换为gbk。以上为代码片段