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使用FlexPaperView在线阅读PDF

2014-06-04 00:00 162 查看
摘要: 介绍在java项目中使用FlexPaperView在线阅读PDF

需要

FlexPaperViewer.swf

pdf2swf.exe

jsp部分

art.dialog.open(getRootPath() + '/contract/contract!lookContractPDF.xhtml?conid='+conid,{title: '合同PDF阅读窗', width: 750, height: "100%"});


显示PDF的JSP代码

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ page import="com.hwxx.utils.CConst"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
</head>
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/style/flexPaper/flexpaper.css" />
<script type="text/javascript" src="${pageContext.request.contextPath}/script/common/utils.js"></script>
<script type="text/javascript" src="${pageContext.request.contextPath}/script/flexPaper/jquery.min.js"></script>
<script type="text/javascript" src="${pageContext.request.contextPath}/script/flexPaper/flexpaper.js"></script>
<script type="text/javascript" src="${pageContext.request.contextPath}/script/flexPaper/flexpaper_handlers.js"></script>

<body>

<div id="documentViewer" class="flexpaper_viewer" style="width:100%;height:842px"></div>

<script type="text/javascript">
$('#documentViewer').FlexPaperViewer(
{ config : {
//下面为PDF文件的.swf文件的地址
SWFFile :'${pageContext.request.contextPath}'+'/images/swf/'+'${pdfname}.swf',
Scale :1,
ZoomTransition : 'easeOut',
ZoomTime : 0.5,
ZoomInterval : 0.2,
FitPageOnLoad : true,
FitWidthOnLoad : false,
FullScreenAsMaxWindow : false,
ProgressiveLoading : false,
MinZoomSize : 0.2,
MaxZoomSize : 5,
SearchMatchAll : false,
InitViewMode : 'Portrait',
RenderingOrder : 'flash',
StartAtPage : '',
ViewModeToolsVisible : true,
ZoomToolsVisible : true,
NavToolsVisible : true,
CursorToolsVisible : true,
SearchToolsVisible : true,
WMode : 'window',
localeChain: 'en_US'
}}
);

</script>

</body>
</html>

java后台

FlexPaperView阅读时是调取.swf文件，所以在上传pdf时最好转换一份成swf文件

上传并转换的代码

/**
* 上传合同PDF文件
* @return
* @throws IOException
*/
public void uploadPDF() throws IOException{

String contractid = reqParam("contractid");
String fileInputFileName = reqParam("fileInputFileName");
ActionContext ctx = ActionContext.getContext();
HttpServletResponse sd = ServletActionContext.getResponse();
sd.setContentType("UTF-8");
String path= request.getSession().getServletContext().getRealPath("images/uploadPDF");
File fd=new File(path);

if(!fd.exists()){
fd.mkdir();
}
try {
DateFormat formater = new SimpleDateFormat("yyyyMMddHHmmss");
String picname = formater.format(new Date());
String savefile = null;

Contract contract = contractService.findbyid(getInt(contractid));

//保存图片信息
if(file!=null){
savefile = picname + fileInputFileName.substring(fileInputFileName.lastIndexOf("."));
FileUtils.copyFile(file, new File(fd ,savefile));
//把pdf文件转为swf文件
Pdf2SwfUtil.pdf2swf(request, savefile);
contract.setPdfname(picname);
}

//根据conid找出对应合同，写入合同信息

contract.setModifier(getEmpNum());
contract.setModifiertime(DateUtil.getDateNow("yyyy-MM-dd"));
recordLog("上传合同PDF文件-[合同编号:"+contract.getContractlabel()+"]");
contractService.update(contract);

JsonObject jo = new JsonObject();
jo.addProperty("success",true);
jo.addProperty("msg","上传成功");
Gson gson = new Gson();
System.out.println(gson.toJson(jo));
response.setContentType("text/html;charset=utf-8");
response.getWriter().write(gson.toJson(jo));

} catch (IOException e) {
JsonObject jo = new JsonObject();
jo.addProperty("success",true);
jo.addProperty("msg","上传成功");
Gson gson = new Gson();
System.out.println(gson.toJson(jo));
response.setContentType("text/html;charset=utf-8");
response.getWriter().write(gson.toJson(jo));
e.printStackTrace();
}

}

Pdf2SwfUtil工具类

public class Pdf2SwfUtil {

/**
* 将pdf文件转换为swf文件
* @param name
* @return
* @throws IOException
*/
public static boolean pdf2swf(HttpServletRequest request, String name)
{
try
{
//获取 pdf文件夹的路径
String pdfPath = getDirectory(request, "images\\uploadPDF");
//获取pdf文件夹中的某个文件路径
String pdfFile = pdfPath.concat("\\" + name);
//获取swf文件夹的路径
String swfPath = getDirectory(request, "images\\swf");
//获取swf文件夹中的某个文件路径
String swfFile = swfPath.concat("\\" + name);
//调用tools文件夹中的pdf2swf工具
String toolsPath = getDirectory(request, "SWFTools");
Runtime run = Runtime.getRuntime();
Process process = run.exec(toolsPath+ "\\pdf2swf.exe  -t  " + pdfFile
+ "   -o   " + swfFile.replace(".pdf",".swf")+" -T 9 ".replace("Program Files","'Program Files'"));
process.waitFor();
return true;
} catch (Exception e)
{
return false;
}

}

/**
* 获取某个文件夹的路径
* @param request
* @param directoryName
* @return
*/
public static String getDirectory(HttpServletRequest request, String directoryName)
{
String directory = request.getSession().getServletContext()
.getRealPath(directoryName);
return directory;
}

}
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