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

时间:2014-06-30 14:11:13      阅读:532      评论:0      收藏:0      [点我收藏+]

标签:des   style   blog   http   java   color   

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

bubuko.com,布布扣

ok,不足之处,希望多喷!

 

SpringMVC+springSecurity+flexPaper 配置--类似百度文库在线预览,布布扣,bubuko.com

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

标签:des   style   blog   http   java   color   

原文地址:http://www.cnblogs.com/cmzcheng/p/3813785.html

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