if (bookFilePaths != null && bookFilePaths.size() > 0) {
File[] files = new File[bookFilePaths.size()]
for(int i = 0 i < bookFilePaths.size() i++){
files[i] = new File(bookFilePaths.get(i))
}
if (files != null && files.length > 0) {
try {
ArrayList pages = new ArrayList(files.length - 1)
FileSeekableStream[] stream = new FileSeekableStream[files.length]
for (int i = 0 i < files.length i++) {
stream[i] = new FileSeekableStream(
files[i].getCanonicalPath())
}
ParameterBlock pb = (new ParameterBlock())
PlanarImage firstPage = JAI.create("stream", stream[0])
for (int i = 1 i < files.length i++) {
PlanarImage page = JAI.create("stream", stream[i])
pages.add(page)
}
TIFFEncodeParam param = new TIFFEncodeParam()
File f = new File(toPath)
if(!f.exists()){
f.mkdirs()
}
OutputStream os = new FileOutputStream(toPath + File.separator+ distFileName)
ImageEncoder enc = ImageCodec.createImageEncoder("tiff",
os, param)
param.setExtraImages(pages.iterator())
enc.encode(firstPage)
for (int i = 0 i < files.length i++) {
stream[i].close()
if(files[i].isFile()&&files[i].exists()){
files[i].delete()
}
}
os.close()
} catch (IOException e) {
e.printStackTrace()
}
}
}
}
#首先在D盘写一个文件"temp.html"，如下内容<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>图片转文本</title>
<meta http-equiv="content-type" content="text/htmlcharset=gbk">
<style type="text/css">
body {
font-family: 宋体line-height: 0.8emletter-spacing: 0pxfont-size: 8px
}
</style>
</head>
<body>
${content}
</body>
</html>
#在D盘放一个图片（放小一点的）"a.jpg"
#运行如下JAVA代码：
import java.awt.Color
import java.awt.image.BufferedImage
import java.io.File
import java.io.FileInputStream
import java.io.FileOutputStream
import java.io.IOException
import java.io.InputStreamReader
import javax.imageio.ImageIO
public class Test {
/** 此处设置灰度字符，此处只用十个字符，可以设置更多 */
private static char[] cs = new char[] { '.', ',', '*', '+', '=', '&', '$', '@', '#', ' ' }
public static void main(String[] args) throws IOException {
// 读取图片
BufferedImage bfedimage = ImageIO.read(new File("D:\\a.jpg"))
// 图片转字符串后的数组
char[][] css = new char[bfedimage.getWidth()][bfedimage.getHeight()]
for (int x = 0x <bfedimage.getWidth()x++) {
for (int y = 0y <bfedimage.getHeight()y++) {
int rgb = bfedimage.getRGB(x, y)
Color c = new Color(rgb)
// 得到灰度值
int cc = (c.getRed() + c.getGreen() + c.getBlue()) / 3
css[x][y] = cs[(int) ((cc * 10 - 1) / 255)]
}
}
// 取得模板HTML
String temp = readFile(new File("D:\\temp.html"),"gbk")
StringBuffer sb = new StringBuffer()
// 开始拼接内容
for (int y = 0y <css[0].lengthy++) {
for (int x = 0x <css.lengthx++) {
sb.append(css[x][y])
}
sb.append("\r\n")
}
System.out.println(sb.toString())
// 生成文件
String content = toHTML(sb.toString())
String filecontent = replaceStrAllNotBack(temp, "${content}", content)
writeFile(new File("D:\\content.html"), filecontent, "gbk")
}
public static String toHTML(String s) {
s = s.replaceAll("&", "&")
s = s.replaceAll(" ", " ")
s = s.replaceAll(">", ">")
s = s.replaceAll("<", "<")
s = s.replaceAll("\"", """)
s = s.replaceAll("\\\r\\\n", "<br/>")
s = s.replaceAll("\\\r", "<br/>")
s = s.replaceAll("\\\n", "<br/>")
return s
}
public static String replaceStrAllNotBack(String str, String strSrc, String strDes) {
StringBuffer sb = new StringBuffer(str)
int index = 0
while ((index = sb.indexOf(strSrc, index)) != -1) {
sb.replace(index, index + strSrc.length(), strDes)
index += strDes.length()
}
return sb.toString()
}
/**
* 读文件(使用默认编码)
*
* @param file
* @return 文件内容
* @throws IOException
*/
public static String readFile(File file, String charset) throws IOException {
InputStreamReader fr = new InputStreamReader(new FileInputStream(file), charset)
StringBuffer sb = new StringBuffer()
char[] bs = new char[1024]
int i = 0
while ((i = fr.read(bs)) != -1) {
sb.append(bs, 0, i)
}
fr.close()
return sb.toString()
}
/**
* 写文件
*
* @param file
* @param string
*字符串
* @param encoding
*编码
* @return 文件大小
* @throws IOException
*/
public static int writeFile(File file, String string, String encoding) throws IOException {
FileOutputStream fos = new FileOutputStream(file)
try {
byte[] bs = string.getBytes(encoding)
fos.write(bs)
return bs.length
} finally {
fos.close()
}
}
}
#打开"D:\content.html"文件看效果吧。
有什么问题可以联系我。
