文件下载方法

实体类  字段名

"ID" IS 'ID',
	"EID" IS '事件编号',
	"WJMC" IS '名称',
	"WJKZM" IS '扩展名',
	"CCLJ" IS '存储路径',
	"WJDX" IS '文件大小',
	"YXXZ" IS '允许下载',
	"XZCS" IS '下载次数' );

public void downloadFj() {
		String id = request.getParameter("id");
		if (StringUtils.isNotEmpty(id)) {
			Sjfjb sjfjb = sjfjbService.get(Long.valueOf(id));
			HttpServletResponse response = ServletActionContext.getResponse();
			response.setContentType(sjfjb.getContenttype());
			String tempname = null;
			try {
				tempname = URLEncoder.encode(sjfjb.getWjmc(), "UTF-8");
				response.setHeader("Content-disposition",
						"attachment; filename=\"" + tempname);//filename是下载后文件的名字  filename是属性 不可变
				ServletOutputStream outStream = response.getOutputStream();
				BufferedOutputStream bos = null;
				bos = new BufferedOutputStream(outStream);
				File srcFile = new File(EaModelContent.uploadfilepath
						+ File.separator + sjfjb.getEid() + File.separator
						+ sjfjb.getCclj());
				FileInputStream stream = new FileInputStream(srcFile);
				int bytesRead = 0;
				byte[] buffer = new byte[1024];
				while ((bytesRead = stream.read(buffer, 0, 1024)) != -1) {
					bos.write(buffer, 0, bytesRead);
				}
				bos.close();
				outStream.close();
				stream.close();

				sjfjb.setXzcs(sjfjb.getXzcs()==null?1:sjfjb.getXzcs() + 1);
				sjfjbService.save(sjfjb);// 下载次数
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}

类1

public static final String OPERATE_INSERT="新建";
	public static final String OPERATE_UPDATE="更新";
	public static final String OPERATE_DELETE="删除";
	public static final String OPERATE_DELETE1="删除1";
	
    public static Map<String,Table> logTableMap;
	
	public static LinkedHashMap<String, String> operations;
	
	public static LinkedHashMap<String, String> usertags;
	
	public static String uploadfilepath;