Linux Online preview PDF file Development ideas

Preparation: Swftools,flexpaper

Basic ideas:

1. Convert pdf file to swf file

2. Preview swf file using Flexpaper

Main code:

1, install Swftools in Linux. Download Swftools installation package, unzip

2,./configure--prefix= Installation path

Make Install

After execution, execute pdf2swf-help if displayed. Indicates successful installation

If the execution pdf2swf-help display Commond not find, you may need to configure Swftools environment variables, specific configuration please Baidu ^_^

3. Call Linux Shell in Java to convert PDF to SWF

String [] cmd={"/bin/sh", "-C", "pdf2swf" + file path/file name to convert. pdf+ "" +  converted file path/= runtime.getruntime (). exec (cmd);  Dealwith (PRO); Pro.waitfor (); // waiting for the end of the child process, the child process is the system called the file transformation of the new process

Dealwith () is a way to print the execution process

    Private voidDealwith (FinalProcess Pro) {            //here's how to handle the blockage.        Try {                NewThread () { Public voidrun () {BufferedReader BR1=NewBufferedReader (NewInputStreamReader (Pro.getinputstream ())); System.out.println ("********************"+BR1);                        String text; Try {                             while(Text = Br1.readline ())! =NULL) {System.out.println ("==================="+text); }                        } Catch(IOException e) {e.printstacktrace ();            }}}.start (); } Catch(Exception e) {e.printstacktrace (); }                        Try {                NewThread () { Public voidrun () {BufferedReader Br2=NewBufferedReader (NewInputStreamReader (Pro.geterrorstream ()));//This must not forget to deal with the information generated when the reason, or it will clog up theSystem.out.println ("#########################" +BR2);                        String text; Try {                             while(Text = Br2.readline ())! =NULL) {System.err.println ("------------------"+text); }                        } Catch(IOException e) {e.printstacktrace ();            }}}.start (); } Catch(Exception e) {e.printstacktrace (); }        } 

In 4.jsp,

Introduction of Flexpaper class and JS

<link rel= "stylesheet" type= "Text/css" href= "${ctx}/pages/flexpaper/css/flexpaper.css"/>

<script src= "${ctx}/pages/flexpaper/js/flexpaper.js" charset= "UTF-8" ></script>
<script src= "${ctx}/pages/flexpaper/js/flexpaper_handlers.js" charset= "UTF-8" ></script>

<div id= "DocumentViewer" class= "Flexpaper_viewer" style= "width:770px;height:500px;" ></div>

$ (' #documentViewer '). Flexpaperviewer ({config: {swffile:fileurl, 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 '                }}        );

The above is the main implementation code. The use of Flexpaper can be referred to the official download package, the official download package directly into Tomcat can be run.

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First write so much, again thanks to the great community of netizens and it peers, to provide a variety of information to me with the greatest help. Thank you!