JSP生成静态html网页

/**
 * jsp生成静态html网页
 */
public class ToHtml extends HttpServlet {
    public void service(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String url = "";
        String name = "";
        ServletContext sc = getServletContext();
        String file_name = request.getParameter("file_name");// 你要访问的jsp文件名,如index，不包括扩展名
        // 则你访问这个servlet时加参数.如[url]http://localhost/test/toHtml?file_name=index[/url]
        url = "/" + file_name + ".jsf";// 你要生成的页面的文件名。我的扩展名为jsf .
        name = ConfConstants.CONTEXT_PATH + "\\" + file_name + ".htm";// 这是生成的html文件名,如index.htm.文件名字与源文件名相同。扩展名为htm
        // ConfConstants.CONTEXT_PATH为你的应用的上下文路径。
        RequestDispatcher rd = sc.getRequestDispatcher(url);
        final ByteArrayOutputStream ōs = new ByteArrayOutputStream();
        final ServletOutputStream stream = new ServletOutputStream() {
            public void write(byte[] data, int offset, int length) {
                os.write(data, offset, length);
            }
 
            public void write(int b) throws IOException {
                os.write(b);
            }
        };
        final PrintWriter pw = new PrintWriter(new OutputStreamWriter(os));
        HttpServletResponse rep = new HttpServletResponseWrapper(response) {
            public ServletOutputStream getOutputStream() {
                return stream;
            }
 
            public PrintWriter getWriter() {
                return pw;
            }
        };
        rd.include(request, rep);
        pw.flush();
        FileOutputStream fos = new FileOutputStream(name); // 把jsp输出的内容写到xxx.htm
        os.writeTo(fos);
        fos.close();
        PrintWriter ōut = response.getWriter();
        out.print("<p align=center><font size=3 color=red>页面已经成功生成！single<br>[url]http://www.xxxx.org/space/?[/url] 233</font></p>");
    }
}