java pdf 转 swf

Java Process.exitValue & Process.waitFor()

Process.exitValue() 采用非阻塞的方式返回，如果没有立即拿到返回值，则抛出异常

Process.waitFor() 当前线程等待，如有必要，一直要等到由该 Process 对象表示的进程已经终止。但是如果我们在调用此方法时，如果不注意的话，很容易出现主线程阻塞，Process也挂起的情况。在调用waitFor() 的时候，Process需要向主线程汇报运行状况，所以要注意清空缓存区，即InputStream和ErrorStream，在网上，很多只提到处理InputStream，忽略了ErrorStream。以下一段代码，贴出来，仅做参考。

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.List;

/*
* PDF转SWF工具
* @author tangs
*
*/
public class Converter {
    public static int convertPDF2SWF(String sourcePath, String destPath, String fileName) throws IOException {
////目标路径不存在则建立目标路径
        File dest = new File(destPath);
        if (!dest.exists()) dest.mkdirs();
        
        //源文件不存在则返回
        File source = new File(sourcePath);
        if (!source.exists()) return 0;
        
        //调用pdf2swf命令进行转换
//        String command = "D:\\swftools\\pdf2swf.exe" + " -o \"" + destPath  + fileName +"\"  <SPAN style='COLOR: #ff0000'>-s languagedir=D:\\xpdf\\xpdf-chinese-simplified</SPAN> -s flashversion=9 \"" + sourcePath + "\"";
//        String command = "D:\\swftools\\pdf2swf.exe" + " -o \"" + destPath  +  fileName +"\" -s flashversion=9 \"" + sourcePath + "\"";
        String command= "D:/SWFTools/pdf2swf.exe  -t \""+destPath+"\\Java.pdf\" -o  \""+destPath+"\\test.swf\" -s flashversion=9 -s languagedir=D:\\xpdf\\xpdf-chinese-simplified ";  
        System.out.println("cmd:"+command);
//        Process pro = Runtime.getRuntime().exec(command);
        Process process = Runtime.getRuntime().exec(command); // 调用外部程序   
        final InputStream is1 = process.getInputStream();   
        new Thread(new Runnable() {   
            public void run() {   
                BufferedReader br = new BufferedReader(new InputStreamReader(is1));    
                try {
                    while(br.readLine()!= null) ;
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }   
            }   
        }).start(); // 启动单独的线程来清空process.getInputStream()的缓冲区   
        InputStream is2 = process.getErrorStream();   
        BufferedReader br2 = new BufferedReader(new InputStreamReader(is2));    
        StringBuilder buf = new StringBuilder(); // 保存输出结果流   
        String line = null;   
        while((line = br2.readLine()) != null) buf.append(line); // 循环等待ffmpeg进程结束   
        System.out.println("输出结果为：" + buf);
        
//        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(pro.getInputStream()));
        while (br2.readLine() != null); 
        
        try {
            process.waitFor();
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
        return process.exitValue();

        
    }

    
    public static void main(String []args) throws IOException {
        String sourcePath = "D:\\Java.pdf";
        String destPath = "D:\\";
        String fileName = "Javssa.swf";
        try{
        Converter.convertPDF2SWF(sourcePath, destPath, fileName);
        
        }catch(Exception ex)
        {
            System.out.println("error");
        }
        System.out.println("success");
    
        
        
    }
}

工具准备
swftools.exe 下载
http://www.swftools.org/download.html
安装至D盘
SWFTools提供了一系列将各种文件转成swf的工具：
font2swf.exe
gif2swf.exe
jpeg2swf.exe
pdf2swf.exe
png2swf.exe
wav2swf.exe
这里我们只使用pdf2swf.exe

flexpaper下载
http://code.google.com/p/flexpaper/
这里我们使用已经编译好的FlexPaper的flash版本