JSP生成静态页面

xiaobian

/**
*
*/
package com.mogoko.xiaobian.html;
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
{
    private static final String CONTENT_TYPE = "text/html; charset=GBK";
//    Initialize global variables
    public void init() throws ServletException {
    }
//    Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
    ServletException, IOException {
    response.setContentType(CONTENT_TYPE);
    service(request,response);
    }
//    Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws
    ServletException, IOException {
    doGet(request, response);
    }
    public void destroy() {
    }
    public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
    {
        response.setContentType(this.CONTENT_TYPE);
        String url="";
        String name="";
        ServletContext sc = getServletContext();
        String file_name=request.getParameter("file_name");
        //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
        url = "/"+file_name+".jsp";
        //这是你要生成HTML的jsp文件,如
        //http://localhost/index.jsp的执行结果.
     
        name="D:\\eclipse\\workspace\\Boo\\WebRoot\\"+file_name+".htm";
        System.out.println("file_name=="+file_name);
        System.out.println("name=="+name);
        System.out.println("url=="+url);
        //这是生成的html文件名,如index.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()
            {
                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 out=response.getWriter();
        out.print("首页已经成功生成！Andrew");
    }
}  


本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u/23783/showart_261523.html