用servlet将jsp文件内容转为html。代码如下：
  package examples;
  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);
  /**
  * 只有成功初始化后此方法才能被调用处理用户请求。前一个参数提供访问初始请求数据的方法和字段，
  * 后一个提供servlet构造响应的方法。
  */
  }
  // 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 {
  ServletContext sc = getServletContext();
  String url = "/index.jsp";
  String name = "index.htm"; // 这是生成的html文件名
  String pName = "e:Tomcat 5.5webappsjspTohtmlindex.htm"; // 生成html的完整路径
  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();
jsp和html哪个更好
  FileOutputStream fos = new FileOutputStream(pName); // 把jsp输出的内容写到指定路径的htm文件中
  os.writeTo(fos);
  fos.close();
  response.sendRedirect(name); // 书写完毕后转向htm页面
  }
  }
  在l文件中配置：
  < servlet> < servlet-name>Tohtml< /servlet-name> < servlet-class>examples.ToHtml< /servlet-class>< /servlet> < servlet-mapping> < servlet-name>Tohtml< /servlet-name> < url-pattern>/Tohtml< /url-pattern> < /servlet-mapping>
  下面是用来测试的index.jsp:
  < %@ page contentType="text/html; charset=gb2312" %>< html> < head> < title>Cache Filter Test< /title> < meta http-equiv="Content-Type" content="text/html; charset=gb2312"> < /head> < body>简单测试:s=< % int s=0; // mock time-consuming code for (int i=0;i< 1000;i++) { for (int j=0;j< 1000;j++) { s=s+j; } }out.print(s);%> < /body>< /html>
  更多信息请查看IT技术专栏                                                                                                                   
 

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