JSP生成WORD文档，EXCEL文档及PDF文档的方法

%
response.setHeader("Content-Disposition", "attachment;filename=filename.doc");
%>

%
response.setHeader("Content-Disposition", "attachment;filename=%=docName%>.doc");
%>

package yourpackage;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import oracle.sql.*;
import beans.yourbeanpackage. getBlobBean;
/**
 * p>Title: /p>
 * p>Description: /p>
 * p>Copyright: Copyright (c) 2004/p>
 * p>Company: /p>
 * @author not attributable
 * @version 1.0
 */
public class GetBlobServlet1 extends HttpServlet {
//设置输出内容类型，这个设置很重要,否则客户端浏览器不能识别输出内容,导致弹出下载的对话框。
 private static final String CONTENT_TYPE = "application/msword;charset=gb2312";
 //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);
  perform(request,response);
 }
 public void perform(HttpServletRequest request, HttpServletResponse response){
try{
//该类功能是从oracle哭中取出blob实体
   getBlobBean getBlob=new getBlobBean();
   OutputStream sos = response.getOutputStream();
   getBlob.connFunction();
oracle.sql.BLOB blob=getBlob.getBlob("cehui");
//输出word文档
if(blob!=null){
    InputStream pi = blob.getBinaryStream();
    int blobsize =(int)blob.length();
    byte[] blobbytes = new byte[blobsize];
    int bytesRead = 0;
    while ((bytesRead = pi.read(blobbytes)) != -1) {
     sos.write(blobbytes, 0, bytesRead);
    }
    pi.close();
    sos.flush();
    sos.close();
   }
   getBlob.dropConnFunction();
  }catch(Exception e){
   System.out.println(e.toString());
  }
 }
 //Clean up resources
 public void destroy() {
 }
} 

%@ page contentType="application/vnd.ms-excel; charset=gb2312" %>
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response.setHeader("Content-Disposition", "attachment;filename=20050304.xls");
%>
html>
head>
meta http-equiv="Content-Type" content="text/html; charset=gb2312">
title>生成/title>
/head>
body>
生成例子excel 。 用WORD排版面，倒出HTML 把代码拷贝到网页里，然后这个JSP页面打印你就随心所欲的控制了。 
/body>
/html>

%@ 
page import="java.io.*,java.awt.Color,com.lowagie.text.*,com.lowagie.text.pdf.*"%> 
% 
response.setContentType( "application/pdf" ); 
Document document = new Document(); 
ByteArrayOutputStream buffer = new ByteArrayOutputStream(); 
PdfWriter writer=PdfWriter.getInstance( document, buffer ); 
document.open(); 
document.add(new Paragraph("Hello World")); 
document.close(); 
DataOutput output = new DataOutputStream( response.getOutputStream() ); 
byte[] bytes = buffer.toByteArray(); 
response.setContentLength(bytes.length); 
for( int i = 0; i  bytes.length; i++ ) { output.writeByte( bytes[i] ); } 
%> 

%@ page import ="com.lowagie.text.*,com.lowagie.text.pdf.*, java.io.*"%> 
% 
String filename = "D://test//111111.pdf" ; 
Document document = new Document(PageSize.A4); 
ServletOutputStream out1 = response.getOutputStream(); 
try{ 
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(filename) ); 
document.open(); 
document.add(new Paragraph("Hello World中文支持")); 
document.close(); 
} 
catch(Exception e){} 
%>

BaseFont bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
Font FontChinese = new Font(bfChinese, 12, Font.NORMAL);

String title = "我爱喝咖啡";
Paragraph t = new Paragraph(title, FontChinese);
doc.add(t);