print2flash文档在线预览应用（java,.net）

一、背景　　

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　　前段时间，LZ的boss突然给了出了这样一个需求：将原项目中的所有文章关联的附件TXT、PDF、office相关文件全部以flash的形式在网页上进行展示，便于预览。看似简单的需求，整个研发小组都懵逼的。LZ也没办法只好Google一把，找了好几套解决方案，基本上是调第三方软件的API，像什么flashpaper、print2flash等等。LZ先试了flashpaper，反正是各种问题，不支持64位系统什么的；print2flash在版本4以前也是很多问题，dll调用失败，dll缺失。最终，LZ在官网下载了最新的版本（商业软件，收费的），用起来还是相对来说比较稳定，至今没出现问题。提供的API还是比较丰富的，本篇LZ主要介绍java和.NET的操作。

二、print2flash安装

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　　这里LZ为了简单实验主要介绍破解版的安装（费了好大的力才找到的），如果商用，还是给钱找别人买吧。

　　1）下载print2flash4.如果想使用服务器模式，大概需要600刀，也不是很贵。官网地址http://print2flash.com/

　　2）运行print2flashsetup.exe一直下一步就OK。

　　3）下载补丁文件。共3个文件p2fServer.exe，print2f4.exe，Print2FlashPrinter4.dll；如果之前已设置了windows服务方式启动，则先需要停止Print2Flash4服务；拷贝p2fServer.exe、print2f4.exe到安装目标文件夹替换原文件，拷贝Print2FlashPrinter4.dll到以下文件夹替换原始文件：C:\Windows\System32\spool\drivers\x64\以及C:\Windows\System32\spool\drivers\x64\3\

　　4）注册print2flash4服务。运行print2flash，options->print2flash service configuration,输入Windows密码，没有的话就不用输，勾选Grant access and launch pemmissions to Everyone给EveryOne用户授予权限。点击OK，如果提示successful，Current status显示Installed表示安装成功。

　　5）开启print2flash4服务。安装成功后，在windows服务中可以找到print2flash服务。启动该服务。

三、java操作API

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　　开始前我们需要将print2flash提供的SDK中的P2FConst.java引入：

 public class P2FConst
 {
     // 枚举常量
     public static final int MSEXCEL = 0x00000001;
     public static final int MSWORD = 0x00000002;
     public static final int MSPOWERPOINT = 0x00000004;
     public static final int ACROBAT = 0x00000008;

     public static final int JPEG = 1;
     public static final int PNG = 2;

     public static final int STRETCH = 1;
     public static final int TILE = 2;

     public static final int INTLOGO = 0x00000001;
     public static final int INTDRAG = 0x00000002;
     public static final int INTSELTEXT = 0x00000004;
     public static final int INTZOOMSLIDER = 0x00000008;
     public static final int INTZOOMBOX = 0x00000010;
     public static final int INTFITWIDTH = 0x00000020;
     public static final int INTFITPAGE = 0x00000040;
     public static final int INTPREVPAGE = 0x00000080;
     public static final int INTGOTOPAGE = 0x00000100;
     public static final int INTNEXTPAGE = 0x00000200;
     public static final int INTSEARCHBOX = 0x00000400;
     public static final int INTSEARCHBUT = 0x00000800;
     public static final int INTROTATE = 0x00001000;
     public static final int INTPRINT = 0x00002000;
     public static final int INTNEWWIND = 0x00004000;
     public static final int INTHELP = 0x00008000;
     public static final int INTBACKBUTTON = 0x00030000;
     public static final int INTBACKBUTTONAUTO = 0x00010000;
     public static final int INTFORWARDBUTTON = 0x000C0000;
     public static final int INTFORWARDBUTTONAUTO = 0x00040000;
     public static final int INTFULLSCREEN = 0x00300000;
     public static final int INTFULLSCREENAUTO = 0x00100000;

     // METADATAPORMAT enumeration constants
     public static final int XML = 1;
     public static final int TEXT = 2;

     // OUTPUTFORMAT enumeration constants
     public static final int SINGLEFILE = 1;
     public static final int SINGLEFILEPERPAGE = 2;
     public static final int EXTVIEWER = 4;

     // PAPER_ORIENTATION enumeration constants
     public static final int ORIENT_PORTRAIT = 1;
     public static final int ORIENT_LANDSCAPE = 2;

     // PROTECTION_OPTION enumeration constants
     public static final int PROTDISPRINT = 0x00000001;
     public static final int PROTDISTEXTCOPY = 0x00000002;
     public static final int PROTENAPI = 0x00000004;

     // ThreeStateFlag enumeration constants
     public static final int TSF_NO = 0;
     public static final int TSF_YES = 1;
     public static final int TSF_AUTO = 2;

     // TOOLBARIMAGE enumeration constants
     public static final int IMGLOGO = 1;
     public static final int IMGDRAG = 2;
     public static final int IMGSELTEXT = 3;
     public static final int IMGZOOMRULER = 4;
     public static final int IMGZOOMFOCUSNADLE = 5;
     public static final int IMGZOOMNADLE = 6;
     public static final int IMGFITWIDTH = 7;
     public static final int IMGFITPAGE = 8;
     public static final int IMGPREVPAGE = 9;
     public static final int IMGNEXTPAGE = 10;
     public static final int IMGSEARCHBUT = 11;
     public static final int IMGROTATE = 12;
     public static final int IMGPRINT = 13;
     public static final int IMGNEWWIND = 14;
     public static final int IMGHELP = 15;
     public static final int IMGMORE = 16;
     public static final int IMGTOOLBARBGR = 17;
     public static final int IMGBACK = 18;
     public static final int IMGFORWARD = 19;
     public static final int IMGFULLSCREEN = 20;
     public static final int IMGEXITFULLSCREEN = 21;

     // TEMPLATETYPE enumeration constants
     public static final int TEMPLATE_CUSTOM = 1;
     public static final int TEMPLATE_ACTIONSCRIPT2 = 2;
     public static final int TEMPLATE_ACTIONSCRIPT3 = 3;

     // WATERMARKANCHOR enumeration constants
     public static final int CENTER = 0;
     public static final int LEFTCENTER = 1;
     public static final int RIGHTCENTER = 2;
     public static final int TOPCENTER = 16;
     public static final int BOTTOMCENTER = 32;
     public static final int LEFTTOP = 17;
     public static final int RIGHTTOP = 18;
     public static final int LEFTBOTTOM = 33;
     public static final int RIGHTBOTTOM = 34;

     // COMPRESSION_METHOD enumeration constants
     public static final int COMPRESSION_METHOD_ZLIB = 0;
     public static final int COMPRESSION_METHOD_LZMA = 1;

     // DOCUMENT_TYPE Enumeration constants
     public static final int FLASH = 1;
     public static final int HTML5 = 2;

     // BROWSER_TYPE Enumeration public static final intants
     public static final int INTERNET_EXPLORER =   1;
     public static final int FIREFOX =             2;
     public static final int CHROME =              4;
     public static final int OPERA =               8;
     public static final int SAFARI =              16;

     // POWERPOINT_PRINTOUTPUT Enumeration constants
     public static final int POWERPOINT_PRINTOUTPUT_AUTO =            0;
     public static final int POWERPOINT_PRINTOUTPUT_Slides =            1;
     public static final int POWERPOINT_PRINTOUTPUT_TwoSlideHandouts =    2;
     public static final int POWERPOINT_PRINTOUTPUT_ThreeSlideHandouts =    3;
     public static final int POWERPOINT_PRINTOUTPUT_SixSlideHandouts    =    4;
     public static final int POWERPOINT_PRINTOUTPUT_NotesPages =         5;
     public static final int POWERPOINT_PRINTOUTPUT_Outline =        6;
     public static final int POWERPOINT_PRINTOUTPUT_BuildSlides =        7;
     public static final int POWERPOINT_PRINTOUTPUT_FourSlideHandouts =    8;
     public static final int POWERPOINT_PRINTOUTPUT_NineSlideHandouts =    9;
     public static final int POWERPOINT_PRINTOUTPUT_OneSlideHandouts    =    10;
 }

　　开始转换Test.java类：

 package print2flash;

 import java.io.IOException;

 import com.jacob.activeX.*;
 import com.jacob.com.*;

 public class Test {

     public static void main(String[] args) throws IOException {
         try {
             ComThread.InitSTA();//com组件管理，用来初始化com线程，释放线程
             ActiveXComponent p2f = new ActiveXComponent("Print2Flash4.Server");//创建print2flash的一个应用，调用print2flash服务
             //设置属性值，可根据自己需求修改
             ActiveXComponent defProfile = new ActiveXComponent(p2f.getProperty("DefaultProfile").toDispatch());
             defProfile.setProperty("InterfaceOptions", P2FConst.INTLOGO | P2FConst.INTZOOMSLIDER | P2FConst.INTPREVPAGE
                     | P2FConst.INTGOTOPAGE | P2FConst.INTNEXTPAGE);
             defProfile.setProperty("ProtectionOptions", P2FConst.PROTDISPRINT | P2FConst.PROTENAPI);
             defProfile.setProperty("DocumentType", P2FConst.FLASH | P2FConst.HTML5);
             p2f.invoke("ConvertFile", "E:/print2flashTest/test.doc");//方法调用
             System.out.println("转换成功！");
         } catch (Exception e) {
             System.out.println("转换异常: " + e.toString());
         } finally {
             ComThread.Release();
         }
     }
 }

　　注意：这里涉及到java应用调用windows的COM组件，需要用到jacob，没有的同学，可以用LZ提供的链接地址下载（文章最后会一起附上）。

　　1）将jacob.jar build path。

　　2）将jacob-1.16-M1-x64.dll（根据自己系统情况选择）复制到jre/bin目录（如果没有该dll，会抛出找不到ComThread类异常）

　　接下来LZ准备一个test.doc，来进行测试:

　　

　　test.docx.swf即为生成的flash文件，可嵌入到你需要的网页中。

四、.NET操作API

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　　.NET的操作相对来说就简单得多了，LZ这里也是只做一个简单的win32控制台演示：

　　1）首先新建win32控制台应用程序，增加程序集Interop.Print2Flash4.dll。

　　2）在Proogram.cs中写具体业务逻辑：　　

 using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Text;

 namespace Test
 {
     class Program
     {
         static void Main(string[] args)
         {
             string fs_filename = System.AppDomain.CurrentDomain.BaseDirectory()+"/print2flashTest/test.docx";
             string fs_convertedfilename = System.AppDomain.CurrentDomain.BaseDirectory()+"/print2flashTest/swf/test.swf";
             Print2Flash4.Server2 p2fServer = new Print2Flash4.Server2();//创建print2flash对象
             //设置参数值，可以参考官网SDK文档
             p2fServer.ConvertFile(fs_filename, fs_convertedfilename, null, null, null);
         }
     }
 }

　　运行结果与java一样。官网SDK还提供了ASP、PHP等脚本语言的操作API，有情趣的同学可以自己尝试一下。

　　

五、总结

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　　print2flash这款软件还是不错的，转换后的效果比较清晰。运用范围差不多就是内容管理系统、文章管理等附件的预览，当然也可以用来控制游客用户不允许文字复制等等。最后附上本文LZ所用到的源代码，补丁，附件的下载地址：

　　源代码：https://github.com/LJunChina/JavaResource/tree/master/print2flash

　　print2flash4补丁：http://download.csdn.net/detail/qq503665965/9860438

　　jacob：http://download.csdn.net/detail/qq503665965/9860441

　　SDK:http://download.csdn.net/detail/qq503665965/9860435