SpringMVC+springSecurity+flexPaper 配置--类似百度文库在线预览

时间:2022-08-25 04:30:13

背景:现在项目需要做一个类似百度文库的在线预览功能,在网上找了下很多人推荐使用FlexPaper,所以今天尝试学习了FlexPaper顺便集成到现有的框架中

由于网上目前的说的都不是很详细,所以现在记录在此,希望对需要的人有所帮助

准备:1. FlexPaper_2.2.4.zip 下载地址:http://flexpaper.devaldi.com/download/

            2.swftools 下载地址:http://www.swftools.org/download.html

           3.openoffice4.1 下载地址http://www.openoffice.org/download/index.html

           4.OpenDocument文档转换器 JODConverter 下载地址:http://sourceforge.net/projects/jodconverter/files/

         备注:现在貌似sourceforge.net访问不是很稳定被高墙堵在外面了,需要爬墙,我这边由于使用的是maven工程所以直接就在仓库中下载了

现有系统架构:SpringMVC+springSecurity

步骤:1.安装swftools 首先我们要安装swftools作用是将pdf转换为swf文件以便flexpaper播放,这个windows环境下载下来的就是一个exe直接next就行了

            2.安装openOffice 是开源免费的文字处理软件,它可以将office文档转成pdf文件

             安装完openoffice后必须启动其server,以命令行方式启动openoffice server。进入cmd命令行提示符D:\Program Files\OpenOffice.org 3\program\

             键入如下命令:
           soffice -headless -accept="socket,host=127.0.0.1,port=8100;urp;" –nofirststartwizard

   备注:由于我本机环境是win8的今天在安装的时候都是默认安装在c盘后来在进行openoffice启动的时候服务一直无法启动后来发现可能由于win8对于c盘安全权限的问题后来重装后在d盘重新命令执行,ok服务启动

上述准备工作完成后我们来进行开发,首先我们写一个Controller ,主要是预览跳转链接用的

package com.cmcc.zysoft.web.controller;

import javax.servlet.http.HttpServletRequest;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping; import com.cmcc.zysoft.sysmanage.common.BaseController;
import com.cmcc.zysoft.web.util.DocConverter;
/**
*
* @ClassName: DocConverterController
* @Description: TODO文档转换跳转类
* @author cmzcheng@gmail.com
* @date 2014年6月28日 下午6:37:04
*
*/ @RequestMapping("pc/docConverterController")
@Controller
public class DocConverterController extends BaseController { @Value("${upload.file.path}")
private static String path;
private static Logger _logger = LoggerFactory
.getLogger(DocConverterController.class);
@RequestMapping("/docPrvew.htm")
public String docUplod(HttpServletRequest request,String fileName) {
String fileString =request.getServletContext().getRealPath("")+path+fileName;
//String fileString = request.getServletContext().getRealPath("")+"/resources/downLoad/11.doc"; //暂时路径是写死进行测试的,等后面上传后从上传路径进行查找
DocConverter d = new DocConverter(fileString);
d.conver();
// 调用getswfPath()方法,打印转换后的swf文件路径
_logger.info(d.getswfPath());
// 生成swf相对路径,以便传递给flexpaper播放器
String swfpath ="/resources/downLoad"
+ d.getswfPath().substring(d.getswfPath().lastIndexOf("/"));
_logger.info(swfpath);
request.getSession().setAttribute("swfpath", swfpath);
//model.addAttribute("swfpath", swfpath);
return "flexPaper/documentView";
}
}

在这个controller中我们可以看到调用了DocConverter 这个类,这个类主要是对pdf进行转换的类,所以比较重要也是成功与否的关键

在前面我们知道OpenOffice需要用命令行启动服务,但是上线后不能使用cmd来进行操作吧,所以在DocConverter,在网上找了JavaCallOpenoffice利用程序进行自启动

package com.cmcc.zysoft.web.util;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.util.Scanner; import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import com.artofsolving.jodconverter.DocumentConverter;
import com.artofsolving.jodconverter.openoffice.connection.OpenOfficeConnection;
import com.artofsolving.jodconverter.openoffice.connection.SocketOpenOfficeConnection;
import com.artofsolving.jodconverter.openoffice.converter.OpenOfficeDocumentConverter; /**
*
* @ClassName: DocConverter
* @Description: TODO felx生成方法
* @author cmzcheng@gmail.com
* @date 2014年6月28日 下午6:37:27
*
*/
public class DocConverter {
private static final int environment = 1;// 环境 1:windows 2:linux
private String fileString;// (只涉及pdf2swf路径问题)
private String outputPath = "";// 输入路径 ,如果不设置就输出在默认的位置
private String fileName;
private File pdfFile;
private File swfFile;
private File docFile;
private Process process = null;
private static Logger _logger = LoggerFactory.getLogger(DocConverter.class); public DocConverter(String fileString) {
ini(fileString);
JavaCallOpenoffice();// 启动openoffice
} /**
* 重新设置file
*
* @param fileString
*/
public void setFile(String fileString) {
ini(fileString);
} /**
* 初始化
*
* @param fileString
*/
private void ini(String fileString) {
this.fileString = fileString;
fileName = fileString.substring(0, fileString.lastIndexOf("."));
docFile = new File(fileString);
pdfFile = new File(fileName + ".pdf");
swfFile = new File(fileName + ".swf");
} /**
* 转为PDF
*
* @param file
*/
private void doc2pdf() throws Exception {
if (docFile.exists()) {
if (!pdfFile.exists()) {
OpenOfficeConnection connection = new SocketOpenOfficeConnection(
8100);
try {
connection.connect();
DocumentConverter converter = new OpenOfficeDocumentConverter(
connection);
converter.convert(docFile, pdfFile);
// close the connection
connection.disconnect();
_logger.info("****pdf转换成功,PDF输出:" + pdfFile.getPath()
+ "****");
} catch (java.net.ConnectException e) {
e.printStackTrace();
_logger.info("****swf转换器异常,openoffice服务未启动!****");
throw e;
} catch (com.artofsolving.jodconverter.openoffice.connection.OpenOfficeException e) {
e.printStackTrace();
_logger.info("****swf转换器异常,读取转换文件失败****");
throw e;
} catch (Exception e) {
e.printStackTrace();
throw e;
}
} else {
_logger.info("****已经转换为pdf,不需要再进行转化****");
}
} else {
_logger.info("****swf转换器异常,需要转换的文档不存在,无法转换****");
}
DistorySoffice();// 每次转换成功后都关闭下openoffice
} /**
* 自启动openoffice方法
*/
public void JavaCallOpenoffice() {
Runtime rn = Runtime.getRuntime();
Process p = null;
try {
File file = new File("d:\\openoprenoffice.bat");
if (false == file.exists()) {
_logger.info("。。。。。。。。。。");
FileWriter writer = new FileWriter("d:\\openoprenoffice.bat ");
writer.write("@echo off ");
writer.write("\r\n ");
writer.write("D:");
writer.write("\r\n ");
// D:\\Program Files\\OpenOffice 4\\program: openoffice的安装路径路径
writer.write("cd D:\\Program Files (x86)\\OpenOffice 4\\program");
writer.write("\r\n ");
writer.write("soffice -headless -accept="
+ "socket,host=127.0.0.1,port=8100;urp;"
+ " -nofirststartwizard");
writer.write("\r\n ");
writer.write("@echo on ");
writer.close();
}
p = rn.exec("cmd.exe /C d:\\openoprenoffice.bat");
} catch (Exception e1) {
e1.printStackTrace();
}
} /**
* 关闭office的方法
*/
public void DistorySoffice() {
try {
// 显示进程
process = Runtime.getRuntime().exec("tasklist");
Scanner in = new Scanner(process.getInputStream());
while (in.hasNextLine()) {
String processString = in.nextLine();
if (processString.contains("soffice.exe")) {
// 关闭soffice进程的命令
String cmd = "taskkill /f /im soffice.exe";
process = Runtime.getRuntime().exec(cmd);
_logger.info("openoffice正常关闭.......");
}
}
} catch (IOException e) {
e.printStackTrace(); }
} /**
* 转换成 swf
*/
@SuppressWarnings("unused")
private void pdf2swf() throws Exception {
Runtime r = Runtime.getRuntime();
if (!swfFile.exists()) {
if (pdfFile.exists()) {
if (environment == 1) {// windows环境处理
try {
Process p = r
.exec("C:/Program Files (x86)/SWFTools/pdf2swf.exe "
+ pdfFile.getPath()
+ " -o "
+ swfFile.getPath() + " -T 9");
_logger.info(loadStream(p.getInputStream()));
_logger.info(loadStream(p.getErrorStream()));
_logger.info(loadStream(p.getInputStream()));
_logger.info("****swf转换成功,文件输出:" + swfFile.getPath()
+ "****");
if (pdfFile.exists()) {
pdfFile.delete();
} } catch (IOException e) {
e.printStackTrace();
throw e;
}
} else if (environment == 2) {// linux环境处理
try {
Process p = r.exec("pdf2swf " + pdfFile.getPath()
+ " -o " + swfFile.getPath() + " -T 9");
_logger.info(loadStream(p.getInputStream()));
_logger.info(loadStream(p.getErrorStream()));
_logger.info("****swf转换成功,文件输出:" + swfFile.getPath()
+ "****");
if (pdfFile.exists()) {
pdfFile.delete();
}
} catch (Exception e) {
e.printStackTrace();
throw e;
}
}
} else {
_logger.info("****pdf不存在,无法转换****");
}
} else {
_logger.info("****swf已经存在不需要转换****");
}
} static String loadStream(InputStream in) throws IOException { int ptr = 0;
in = new BufferedInputStream(in);
StringBuffer buffer = new StringBuffer(); while ((ptr = in.read()) != -1) {
buffer.append((char) ptr);
} return buffer.toString();
} /**
* 转换主方法
*/
@SuppressWarnings("unused")
public boolean conver() { if (swfFile.exists()) {
_logger.info("****swf转换器开始工作,该文件已经转换为swf****");
return true;
} if (environment == 1) {
_logger.info("****swf转换器开始工作,当前设置运行环境windows****");
} else {
_logger.info("****swf转换器开始工作,当前设置运行环境linux****");
}
try {
doc2pdf();
pdf2swf();
} catch (Exception e) {
e.printStackTrace();
return false;
} if (swfFile.exists()) {
return true;
} else {
return false;
}
} /**
* 返回文件路径
*
* @param s
*/
public String getswfPath() {
if (swfFile.exists()) {
String tempString = swfFile.getPath();
tempString = tempString.replaceAll("\\\\", "/");
return tempString;
} else {
return "";
} } /**
* 设置输出路径
*/
public void setOutputPath(String outputPath) {
this.outputPath = outputPath;
if (!outputPath.equals("")) {
String realName = fileName.substring(fileName.lastIndexOf("/"),
fileName.lastIndexOf("."));
if (outputPath.charAt(outputPath.length()) == '/') {
swfFile = new File(outputPath + realName + ".swf");
} else {
swfFile = new File(outputPath + realName + ".swf");
}
}
} }

后端写好后,那么我们来写前端,前端只有一个预览界面documentView.jsp,对应的几个flexPaper js文件是在下载的flexpaper包中直接copy过来的

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<%@ include file="/WEB-INF/views/common/homecommoncss.jsp"%>
<base href="<%=basePath%>" />
<%
String swfFilePath=basePath+session.getAttribute("swfpath").toString();
%>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<jsp:include page="/WEB-INF/views/common/commonjs.jsp" />
<script type="text/javascript" src="/resources/js/flexPaper/flexpaper_handlers_debug.js"></script>
<script type="text/javascript" src="/resources/js/flexPaper/flexpaper_handlers.js"></script>
<script type="text/javascript" src="/resources/js/flexPaper/flexpaper.js"></script>
<style type="text/css" media="screen">
html, body { height:100%; }
body { margin:0; padding:0; overflow:auto; }
#flashContent { display:none; }
</style> <title>文档在线预览系统</title>
</head>
<body>
<div style="position:absolute;left:50px;top:10px;">
<div id="documentViewer" class="flexpaper_viewer" style="width:870px;height:500px"></div>
<script type="text/javascript">
$('#documentViewer').FlexPaperViewer(
{ config : {
SWFFile : '<%=swfFilePath%>',
Scale : 0.6,
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>
</div>
</body>
</html>

其它:在操作过程由于我这个框架是采用了springSecurity 进行签权,所以我们在启动后出现了FlexPaperViewer.swf被拦截无法加载的错误,之后修改了file-security.xml中进行了一个不拦截的设置

代码如下

<security:filter-chain pattern="/security/**" filters="none" />
<security:filter-chain pattern="/**/*.swf" filters="none" />

最后我这边改造了下flexpaper.js文件的默认路径,改造后的代码如下,其中_jsDirectory 以及expressInstall 所指发路径为本人代码所在的flexpaper文件夹中的相关文件

if (_uDoc != null) {
_SWFFile = FLEXPAPER.translateUrlByFormat(_uDoc,"swf");
} _SWFFile = (config.SwfFile!=null?config.SwfFile:_SWFFile);
_SWFFile = (config.SWFFile!=null?config.SWFFile:_SWFFile);
_PDFFile = (config.PDFFile!=null?config.PDFFile:_PDFFile);
_IMGFiles = (config.IMGFiles!=null?config.IMGFiles:_IMGFiles);
_IMGFiles = (config.PageImagePattern!=null?config.PageImagePattern:_IMGFiles);
_JSONFile = (config.JSONFile!=null?config.JSONFile:_JSONFile);
_jsDirectory = (config.jsDirectory!=null?config.jsDirectory:"resources/js/flexPaper/");
_cssDirectory = (config.cssDirectory!=null?config.cssDirectory:"css/");
_localeDirectory = (config.localeDirectory!=null?config.localeDirectory:"locale/");
if(_SWFFile!=null && _SWFFile.indexOf("{" )==0 && _SWFFile.indexOf("[*," ) > 0 && _SWFFile.indexOf("]" ) > 0){_SWFFile = escape(_SWFFile);} // split file fix window[instance] = flashembed(id, {
src : _jsDirectory+"FlexPaperViewer.swf",
version : [10, 0],
expressInstall : _jsDirectory+"expressinstall.swf",
wmode : _WMode
},{

最后我们来看下效果怎样

SpringMVC+springSecurity+flexPaper 配置--类似百度文库在线预览

ok,不足之处,希望多喷!