执行JSP后生成HTML静态文件

import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServletResponseWrapper;

public class toHtml extends HttpServlet {
public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

String url="";
String name="";
ServletContext sc = getServletContext();

//你要访问的jsp文件,如index.jsp
//则你访问这个servlet时加参数.
//如http://localhost/toHtml?file_name=index
String file_name=request.getParameter("file_name");

//这是你要生成HTML的jsp文件,如
//http://localhost/index.jsp的执行结果.
url = "/"+file_name+".jsp";

//这是生成的html文件名,如index.htm.
name="/home/resin/resin-2.1.6/doc/"+file_name+".htm";

RequestDispatcher rd = sc.getRequestDispatcher(url);
final ByteArrayOutputStream os = 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() {