获取http的pdf文件并存到本地转为img

package com.fx.wms.common.util;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;

import javax.imageio.ImageIO;

import org.apache.commons.codec.binary.Base64;
import org.apache.commons.io.FileUtils;
import org.jpedal.PdfDecoder;
import org.jpedal.exception.PdfException;
import org.jpedal.fonts.FontMappings;

public class JPedal {
public static void main(String[] args) throws IOException, PdfException,InterruptedException {
/**instance of PdfDecoder to convert PDF into image*/
PdfDecoder decode_pdf = new PdfDecoder(true);

/**set mappings for non-embedded fonts to use*/
FontMappings.setFontReplacements();

/**open the PDF file - can also be a URL or a byte array*/
try {
decode_pdf.openPdfFile("C:/Users/oftoo/pdf/EV930739775CN.pdf"); //file
//decode_pdf.openPdfFile("C:/myPDF.pdf", "password"); //encrypted file
//decode_pdf.openPdfArray(bytes); //bytes is byte[] array with PDF
//decode_pdf.openPdfFileFromURL("http://www.mysite.com/myPDF.pdf",false);

/**get page 1 as an image*/
//page range if you want to extract all pages with a loop
int start = 1, end = decode_pdf.getPageCount();
for(int i=start;i<end+1;i++){
BufferedImage img=decode_pdf.getPageAsImage(i);
ImageIO.write(img, "png", new File("C:/Users/oftoo/pdf/"+i+"123.png"));
}
/**close the pdf file*/
decode_pdf.closePdfFile();

} catch (PdfException e) {
e.printStackTrace();
}
System.out.println("22222222222");
}

/**
*
* @Title: PdftoImage
* @Description: TODO(本地的pdf文件转img)
* @param @param urlPath
* @param @param savePath
* @param @return
* @param @throws IOException
* @param @throws PdfException
* @param @throws InterruptedException 设定文件
* @return boolean 返回类型
* @throws
* @author:oftoo
*/
public boolean PdftoImage(String urlPath, String savePath)throws IOException, PdfException, InterruptedException{
/**instance of PdfDecoder to convert PDF into image*/
PdfDecoder decode_pdf = new PdfDecoder(true);
/**set mappings for non-embedded fonts to use*/
FontMappings.setFontReplacements();
/**open the PDF file - can also be a URL or a byte array*/
try {
decode_pdf.openPdfFile(urlPath); //file
//decode_pdf.openPdfFile("C:/myPDF.pdf", "password"); //encrypted file
//decode_pdf.openPdfArray(bytes); //bytes is byte[] array with PDF
//decode_pdf.openPdfFileFromURL("http://www.mysite.com/myPDF.pdf",false);

/**get page 1 as an image*/
//page range if you want to extract all pages with a loop
int start = 1, end = decode_pdf.getPageCount();
for(int i=start;i<end+1;i++){
BufferedImage img=decode_pdf.getPageAsImage(i);
ImageIO.write(img, "png", new File(savePath+"_i"+".png"));
}
/**close the pdf file*/
decode_pdf.closePdfFile();

} catch (PdfException e) {
e.printStackTrace();
return false;
}
return true;
}

/**
*
* @Title: savePdf
* @Description: TODO(获取http的pdf文件保存到本地路径)
* @param @param url
* @param @param savePath
* @param @return 设定文件
* @return boolean 返回类型
* @throws
* @author:oftoo
*/
public boolean savePdf(String url,String savePath){
boolean res = downloadFromUrl("http://baidu.com/xxx.pdf","d:/");
return res;
}

public static String getFileNameFromUrl(String url){
String name = new Long(System.currentTimeMillis()).toString() + ".X";
int index = url.lastIndexOf("/");
if(index > 0){
name = url.substring(index + 1);
if(name.trim().length()>0){
return name;
}
}
return name;
}

public boolean  downloadFromUrl(String url,String dir) {
try {
URL httpurl = new URL(url);
String fileName = getFileNameFromUrl(url);
System.out.println(fileName);
File f = new File(dir + fileName);
FileUtils.copyURLToFile(httpurl, f);
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}

/**
*
* @Title: GetImageStr
* @Description: TODO(将图片文件转化为字节数组字符串，并对其进行Base64编码处理  )
* @param @param imgFilePath
* @param @return 设定文件
* @return String 返回类型
* @throws
* @author:oftoo
*/
public static String GetImageStr(String imgFilePath) {// 将图片文件转化为字节数组字符串，并对其进行Base64编码处理
byte[] data = null;

// 读取图片字节数组
try {
InputStream in = new FileInputStream(imgFilePath);
data = new byte[in.available()];
in.read(data);
in.close();
} catch (IOException e) {
e.printStackTrace();
}

// 对字节数组Base64编码
//BASE64Encoder encoder = new BASE64Encoder();
return new String(Base64.encodeBase64(data));// 返回Base64编码过的字节数组字符串

}

/**
*
* @Title: GenerateImage
* @Description: TODO(对字节数组字符串进行Base64解码并生成图片  )
* @param @param imgStr
* @param @param imgFilePath
* @param @return 设定文件
* @return boolean 返回类型
* @throws
* @author:oftoo
*/
public static boolean GenerateImage(String imgStr, String imgFilePath) {// 对字节数组字符串进行Base64解码并生成图片
if (imgStr == null) // 图像数据为空
return false;
try {
// Base64解码
byte[] bytes = Base64.decodeBase64(imgStr);
for (int i = 0; i < bytes.length; ++i) {
if (bytes[i] < 0) {// 调整异常数据
bytes[i] += 256;
}
}
// 生成jpeg图片
OutputStream out = new FileOutputStream(imgFilePath);
out.write(bytes);
out.flush();
out.close();
return true;
} catch (Exception e) {
return false;
}
}
}