将jsp页面生成word、excel、pdf文档

      开发过程中，有时要求将显示查询结果的jsp页面生成word、excel、pdf等类型的文档，甚至可能要求将那些格式的文档下载下来，因为这样更符合客户的需求，也更利于他们的办公使用。

       基于此，上网查阅了一些资料，现简单整理一下，以供自己和大家学习。

 

1、在client端直接生成word文档

        在jsp页面上生成word文档非常简单，只需把contentType=”text/html”改为contentType="application/msword; charset=gb2312"即可，代码如下： 

[html] view
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<%@ page contentType="application/msword; charset=gb2312" %>  

        通过这样的设置可以使原来页面的内容在word中表现出来。如果需要把word文档下载下来，只需在jsp页面上面加上如下代码：

[html] view
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<% response.setHeader("Content-Disposition", "attachment;filename=filename.doc"); %>  

        其中filename.doc中filename是要下载的word文档的文件名，可以通过<%=docName%>来自行定制，如下：

[html] view
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<% response.setHeader("Content-Disposition", "attachment;filename=<%=docName%>.doc"); %>  

注：如果需要在生成word文档的时候按照自己预先在word上设计好的格式，可以复制word格式然后粘贴到frontpage中，取html代码贴到jsp页面即可。

2、在client端直接生成excel文档

       与word类似，改变contentType，如下：

[html] view
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<%@ page contentType="application/vnd.ms-excel; charset=gb2312" %>  

 

3、在client端直接生成pdf文档

      需要下载JAR包:以下代码在JDK1.4  RESIN2.16  下测试通过。

                    ITEXT包 http://mesh.dl.sourceforge.net/sourceforge/itext/itext-1.3.5.jar

                    字体包http://itext.sourceforge.net/downloads/iTextAsian.jar

      JSP生成到客户IE端直接打开：

[html] view
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<%@ 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] ); }   

%>  

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