项目开发过程中,需求涉及到了各种文档转换为HTML或者网页易显示格式,现在将实现方式整理如下:
一、使用Jacob转换Word,Excel为HTML
“JACOB一个Java-COM中间件.通过这个组件你可以在Java应用程序中调用COM组件和Win32 libraries。”
首先下载Jacob包,JDK1.5以上需要使用Jacob1.9版本(JDK1.6尚未测试),与先前的Jacob1.7差别不大
1、将压缩包解压后,Jacob.jar添加到Libraries中;
2、将Jacob.dll放至“WINDOWS\SYSTEM32”下面。
需要注意的是:
【使用IDE启动Web服务器时,系统读取不到Jacob.dll,例如用MyEclipse启动Tomcat,就需要将dll文件copy到MyEclipse安装目录的“jre\bin”下面。
一般系统没有加载到Jacob.dll文件时,报错信息为:“java.lang.UnsatisfiedLinkError: no jacob in java.library.path”】
新建类:
- public class JacobUtil
- {
- public static final int WORD_HTML = 8;
-
- public static final int WORD_TXT = 7;
-
- public static final int EXCEL_HTML = 44;
-
-
-
-
-
-
- public static void wordToHtml(String docfile, String htmlfile)
- {
- ActiveXComponent app = new ActiveXComponent("Word.Application");
- try
- {
- app.setProperty("Visible", new Variant(false));
- Dispatch docs = app.getProperty("Documents").toDispatch();
- Dispatch doc = Dispatch.invoke(
- docs,
- "Open",
- Dispatch.Method,
- new Object[] { docfile, new Variant(false),
- new Variant(true) }, new int[1]).toDispatch();
- Dispatch.invoke(doc, "SaveAs", Dispatch.Method, new Object[] {
- htmlfile, new Variant(WORD_HTML) }, new int[1]);
- Variant f = new Variant(false);
- Dispatch.call(doc, "Close", f);
- }
- catch (Exception e)
- {
- e.printStackTrace();
- }
- finally
- {
- app.invoke("Quit", new Variant[] {});
- }
- }
-
-
-
-
-
-
- public static void excelToHtml(String xlsfile, String htmlfile)
- {
- ActiveXComponent app = new ActiveXComponent("Excel.Application");
- try
- {
- app.setProperty("Visible", new Variant(false));
- Dispatch excels = app.getProperty("Workbooks").toDispatch();
- Dispatch excel = Dispatch.invoke(
- excels,
- "Open",
- Dispatch.Method,
- new Object[] { xlsfile, new Variant(false),
- new Variant(true) }, new int[1]).toDispatch();
- Dispatch.invoke(excel, "SaveAs", Dispatch.Method, new Object[] {
- htmlfile, new Variant(EXCEL_HTML) }, new int[1]);
- Variant f = new Variant(false);
- Dispatch.call(excel, "Close", f);
- }
- catch (Exception e)
- {
- e.printStackTrace();
- }
- finally
- {
- app.invoke("Quit", new Variant[] {});
- }
- }
-
- }
public class JacobUtil
{
public static final int WORD_HTML = 8;
public static final int WORD_TXT = 7;
public static final int EXCEL_HTML = 44;
/**
* WORD转HTML
* @param docfile WORD文件全路径
* @param htmlfile 转换后HTML存放路径
*/
public static void wordToHtml(String docfile, String htmlfile)
{
ActiveXComponent app = new ActiveXComponent("Word.Application"); // 启动word
try
{
app.setProperty("Visible", new Variant(false));
Dispatch docs = app.getProperty("Documents").toDispatch();
Dispatch doc = Dispatch.invoke(
docs,
"Open",
Dispatch.Method,
new Object[] { docfile, new Variant(false),
new Variant(true) }, new int[1]).toDispatch();
Dispatch.invoke(doc, "SaveAs", Dispatch.Method, new Object[] {
htmlfile, new Variant(WORD_HTML) }, new int[1]);
Variant f = new Variant(false);
Dispatch.call(doc, "Close", f);
}
catch (Exception e)
{
e.printStackTrace();
}
finally
{
app.invoke("Quit", new Variant[] {});
}
}
/**
* EXCEL转HTML
* @param xlsfile EXCEL文件全路径
* @param htmlfile 转换后HTML存放路径
*/
public static void excelToHtml(String xlsfile, String htmlfile)
{
ActiveXComponent app = new ActiveXComponent("Excel.Application"); // 启动word
try
{
app.setProperty("Visible", new Variant(false));
Dispatch excels = app.getProperty("Workbooks").toDispatch();
Dispatch excel = Dispatch.invoke(
excels,
"Open",
Dispatch.Method,
new Object[] { xlsfile, new Variant(false),
new Variant(true) }, new int[1]).toDispatch();
Dispatch.invoke(excel, "SaveAs", Dispatch.Method, new Object[] {
htmlfile, new Variant(EXCEL_HTML) }, new int[1]);
Variant f = new Variant(false);
Dispatch.call(excel, "Close", f);
}
catch (Exception e)
{
e.printStackTrace();
}
finally
{
app.invoke("Quit", new Variant[] {});
}
}
}
当时我在找转换控件时,发现网易也转载了一偏关于Jacob使用帮助,但其中出现了比较严重的错误:String htmlfile = "C:\\AA";
只指定到了文件夹一级,正确写法是String htmlfile = "C:\\AA\\xxx.html";
到此WORD/EXCEL转换HTML就已经差不多了,相信大家应该很清楚了:)
二、使用XPDF将PDF转换为HTML
1、下载xpdf最新版本,地址:http://www.foolabs.com/xpdf/download.html
我下载的是xpdf-3.02pl2-win32.zip
2、下载中文支持包
我下载的是xpdf-chinese-simplified.tar.gz
3、下载pdftohtml支持包
地址:http://sourceforge.net/projects/pdftohtml/
我下载的是:pdftohtml-0.39-win32.tar.gz
4、解压调试
1) 先将xpdf-3.02pl2-win32.zip解压,解压后的内容可根据需要进行删减,如果只需要转换为txt格式,其他的exe文件可以删除,只保留pdftotext.exe,以此类推;
2) 然后将xpdf-chinese-simplified.tar.gz解压到刚才xpdf-3.02pl2-win32.zip的解压目录;
3) 将pdftohtml-0.39-win32.tar.gz解压,pdftohtml.exe解压到xpdf-3.02pl2-win32.zip的解压目录;
4) 目录结构:
+---[X:\xpdf]
|-------各种转换用到的exe文件
|
|-------xpdfrc
|
+------[X:\xpdf\xpdf-chinese-simplified]
|
|
+-------很多转换时需要用到的字符文件
xpdfrc:此文件是用来声明转换字符集对应路径的文件
5) 修改xpdfrc文件(文件原名为sample-xpdfrc)
修改文件内容为:
- #----- begin Chinese Simplified support package
- cidToUnicode Adobe-GB1 xpdf-chinese-simplified\Adobe-GB1.cidToUnicode
- unicodeMap ISO-2022-CN xpdf-chinese-simplified\ISO-2022-CN.unicodeMap
- unicodeMap EUC-CN xpdf-chinese-simplified\EUC-CN.unicodeMap
- unicodeMap GBK xpdf-chinese-simplified\GBK.unicodeMap
- cMapDir Adobe-GB1 xpdf-chinese-simplified\CMap
- toUnicodeDir xpdf-chinese-simplified\CMap
- fontDir C:\WINDOWS\Fonts
- displayCIDFontTT Adobe-GB1 C:\WINDOWS\Fonts\simhei.ttf
- #----- end Chinese Simplified support package
#----- begin Chinese Simplified support package
cidToUnicode Adobe-GB1 xpdf-chinese-simplified\Adobe-GB1.cidToUnicode
unicodeMap ISO-2022-CN xpdf-chinese-simplified\ISO-2022-CN.unicodeMap
unicodeMap EUC-CN xpdf-chinese-simplified\EUC-CN.unicodeMap
unicodeMap GBK xpdf-chinese-simplified\GBK.unicodeMap
cMapDir Adobe-GB1 xpdf-chinese-simplified\CMap
toUnicodeDir xpdf-chinese-simplified\CMap
fontDir C:\WINDOWS\Fonts
displayCIDFontTT Adobe-GB1 C:\WINDOWS\Fonts\simhei.ttf
#----- end Chinese Simplified support package
6) 创建bat文件pdftohtml.bat(放置的路径不能包含空格)
内容为:
- @echo off
- set folderPath=%1
- set filePath=%2
- cd /d %folderPath%
- pdftohtml -enc GBK %filePath%
- exit
@echo off
set folderPath=%1
set filePath=%2
cd /d %folderPath%
pdftohtml -enc GBK %filePath%
exit
7) 创建类
- public class ConvertPdf
- {
- private static String INPUT_PATH;
- private static String PROJECT_PATH;
-
- public static void convertToHtml(String file, String project)
- {
- INPUT_PATH = file;
- PROJECT_PATH = project;
- if(checkContentType()==0)
- {
- toHtml();
- }
- }
-
- private static int checkContentType()
- {
- String type = INPUT_PATH.substring(INPUT_PATH.lastIndexOf(".") + 1, INPUT_PATH.length())
- .toLowerCase();
- if (type.equals("pdf"))
- return 0;
- else
- return 9;
- }
-
- private static void toHtml()
- {
- if(new File(INPUT_PATH).isFile())
- {
- try
- {
- String cmd = "cmd /c start X:\\pdftohtml.bat \"" + PROJECT_PATH + "\" \"" + INPUT_PATH + "\"";
- Runtime.getRuntime().exec(cmd);
- }
- catch (IOException e)
- {
- e.printStackTrace();
- }
- }
- }
-
- }
public class ConvertPdf
{
private static String INPUT_PATH;
private static String PROJECT_PATH;
public static void convertToHtml(String file, String project)
{
INPUT_PATH = file;
PROJECT_PATH = project;
if(checkContentType()==0)
{
toHtml();
}
}
private static int checkContentType()
{
String type = INPUT_PATH.substring(INPUT_PATH.lastIndexOf(".") + 1, INPUT_PATH.length())
.toLowerCase();
if (type.equals("pdf"))
return 0;
else
return 9;
}
private static void toHtml()
{
if(new File(INPUT_PATH).isFile())
{
try
{
String cmd = "cmd /c start X:\\pdftohtml.bat \"" + PROJECT_PATH + "\" \"" + INPUT_PATH + "\"";
Runtime.getRuntime().exec(cmd);
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
}
String cmd = "....";此处代码是调用创建的bat文件进行转换
8) 测试转换
- public static void main(String[] args)
- {
- ConvertPdf.convertToHtml("C:\\test.pdf", "X:\\xpdf");
- }
public static void main(String[] args)
{
ConvertPdf.convertToHtml("C:\\test.pdf", "X:\\xpdf");
}
以上就是整理的内容,后续还会添加视频转换为FLV格式,如果需要的话:)
说的不是很详细,碰到问题的朋友可以自己努力解决一下:)