jsp生成html(方法简单,只用使用一个serlvet)

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本文转载自：http://www.builder.com.cn/2008/0701/960421.shtml

还可以参考：http://www.qudong.com/soft/program/jsp/jinghuawenzhai/20080509/11725.html

1   toHtml.java(不用修改,直接用)

    package com.jetsum.mystatic;

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 = request.getParameter("urls")!=null?request.getParameter("urls"):"";
                //url是要生成htm的jsp页面
                String name = "";

response.setContentType("text/html;charset=gb2312");

ServletContext sc = getServletContext();

System.out.println("request.getRealPath"+request.getRealPath(""));

name = request.getRealPath("") + "/index.htm";

/*生成htm页位置在%服务器的根目录%/工程名/index.htm 例如:d:/tomcat5.0/webapp/studyteach/index.htm ,注意这里是在根目录生成,你可以生成后放到你想放的文件夹里,保证其它东西如图片的路径正确这里就写成name = request.getRealPath("") + "/kszx/kszx.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("<p align=center><font size=3 color=red>首页已经成功生成！</font></p>");
            }
    }
    web.xml    中添加

       <servlet>
        <servlet-name>tohtm</servlet-name>
        <servlet-class>com.jetsum.mystatic.toHtml</servlet-class>
    </servlet>

      <servlet-mapping>
        <servlet-name>tohtm</servlet-name>
        <url-pattern>/web/tohtm</url-pattern>
      </servlet-mapping>

使用方法很简单 mytest.jsp(wwwroot下)

<a href="web/tohtm?urls=/kszx/kszx.jsp">生成静态页</a> kszx.jsp为要生成htm的动态页
如果不在wwwroot下,在wwwroot/pp下

就要写成
<a href="../web/tohtm?urls=/kszx/kszx.jsp">生成静态页</a>