1、介绍
2、安装和配置
Jacob是一个开源软件,它的官方站点是: http://danadler.com/jacob/ 大家可以到上面下载源代码研究,也可以直接下载编译后的二进制文件。
下载包jacob_x.x.zip,解压后有几个文件:jacob.jar、jacob-x.x-M2-x86.dll
把jacob-x.x-M2-x86.dll拷贝到%JAVA_HOME% 下的 bin 目录下,其中,%JAVA_HOME%就是JDK的安装目录。接着直接在java IDE中引用jacob.jar就可以使用了。
下面这个图,本文章中就未列出代码了,在我的资源共享中,有全的源代码,在我之前的博客中也有调用gs转换的命令。
3、转换word为pdf、html、txt 的示例
package com.shanhy.demo.windowsoffice; import java.io.File; import com.jacob.activeX.ActiveXComponent; import com.jacob.com.ComThread; import com.jacob.com.Dispatch; import com.jacob.com.Variant; /** * * 将jacob.dll放入JDK的bin目录下 把jacob.jar放入项目的buildPath中(web项目放到WEB-INF\lib目录下) * * @author 单红宇 * */ public class ConvertToPdf { /*转PDF格式值*/ private static final int wdFormatPDF = 17; private static final int xlFormatPDF = 0; private static final int ppFormatPDF = 32; private static final int msoTrue = -1; private static final int msofalse = 0; /*转HTML格式值*/ private static final int wdFormatHTML = 8; private static final int ppFormatHTML = 12; private static final int xlFormatHTML = 44; /*转TXT格式值*/ private static final int wdFormatTXT = 2; public boolean convert2PDF(String inputFile, String pdfFile) { String suffix = getFileSufix(inputFile); File file = new File(inputFile); if (!file.exists()) { System.out.println("文件不存在!"); return false; } if (suffix.equals("pdf")) { System.out.println("PDF not need to convert!"); return false; } if (suffix.equals("doc") || suffix.equals("docx") || suffix.equals("txt")) { return word2PDF(inputFile, pdfFile); } else if (suffix.equals("ppt") || suffix.equals("pptx")) { return ppt2PDF(inputFile, pdfFile); } else if (suffix.equals("xls") || suffix.equals("xlsx")) { return excel2PDF(inputFile, pdfFile); } else { System.out.println("文件格式不支持转换!"); return false; } } /** * 获取文件后缀 * * @param fileName * @return * @author SHANHY */ private String getFileSufix(String fileName) { int splitIndex = fileName.lastIndexOf("."); return fileName.substring(splitIndex + 1); } /** * Word文档转换 * * @param inputFile * @param pdfFile * @author SHANHY */ private boolean word2PDF(String inputFile, String pdfFile) { ComThread.InitSTA(); long start = System.currentTimeMillis(); ActiveXComponent app = null; Dispatch doc = null; try { app = new ActiveXComponent("Word.Application");// 创建一个word对象 app.setProperty("Visible", new Variant(false)); // 不可见打开word app.setProperty("AutomationSecurity", new Variant(3)); // 禁用宏 Dispatch docs = app.getProperty("Documents").toDispatch();// 获取文挡属性 System.out.println("打开文档 >>> " + inputFile); // Object[]第三个参数是表示“是否只读方式打开” // 调用Documents对象中Open方法打开文档,并返回打开的文档对象Document doc = Dispatch.call(docs, "Open", inputFile, false, true).toDispatch(); // 调用Document对象的SaveAs方法,将文档保存为pdf格式 System.out.println("转换文档 [" + inputFile + "] >>> [" + pdfFile + "]"); Dispatch.call(doc, "SaveAs", pdfFile, wdFormatPDF);//word保存为pdf格式宏,值为17 // Dispatch.call(doc, "ExportAsFixedFormat", pdfFile, wdFormatPDF); // word保存为pdf格式宏,值为17 long end = System.currentTimeMillis(); System.out.println("用时:" + (end - start) + "ms."); return true; } catch (Exception e) { e.printStackTrace(); System.out.println("========Error:文档转换失败:" + e.getMessage()); } finally { Dispatch.call(doc, "Close", false); System.out.println("关闭文档"); if (app != null) app.invoke("Quit", new Variant[] {}); } // 如果没有这句话,winword.exe进程将不会关闭 ComThread.Release(); ComThread.quitMainSTA(); return false; } /** * PPT文档转换 * * @param inputFile * @param pdfFile * @author SHANHY */ private boolean ppt2PDF(String inputFile, String pdfFile) { ComThread.InitSTA(); long start = System.currentTimeMillis(); ActiveXComponent app = null; Dispatch ppt = null; try { app = new ActiveXComponent("PowerPoint.Application");// 创建一个PPT对象 // app.setProperty("Visible", new Variant(false)); // 不可见打开(PPT转换不运行隐藏,所以这里要注释掉) // app.setProperty("AutomationSecurity", new Variant(3)); // 禁用宏 Dispatch ppts = app.getProperty("Presentations").toDispatch();// 获取文挡属性 System.out.println("打开文档 >>> " + inputFile); // 调用Documents对象中Open方法打开文档,并返回打开的文档对象Document ppt = Dispatch.call(ppts, "Open", inputFile, true,// ReadOnly true,// Untitled指定文件是否有标题 false// WithWindow指定文件是否可见 ).toDispatch(); System.out.println("转换文档 [" + inputFile + "] >>> [" + pdfFile + "]"); Dispatch.call(ppt, "SaveAs", pdfFile, ppFormatPDF); long end = System.currentTimeMillis(); System.out.println("用时:" + (end - start) + "ms."); return true; } catch (Exception e) { e.printStackTrace(); System.out.println("========Error:文档转换失败:" + e.getMessage()); } finally { Dispatch.call(ppt, "Close"); System.out.println("关闭文档"); if (app != null) app.invoke("Quit", new Variant[] {}); } ComThread.Release(); ComThread.quitMainSTA(); return false; } /** * Excel文档转换 * * @param inputFile * @param pdfFile * @author SHANHY */ private boolean excel2PDF(String inputFile, String pdfFile) { ComThread.InitSTA(); long start = System.currentTimeMillis(); ActiveXComponent app = null; Dispatch excel = null; try { app = new ActiveXComponent("Excel.Application");// 创建一个PPT对象 app.setProperty("Visible", new Variant(false)); // 不可见打开 // app.setProperty("AutomationSecurity", new Variant(3)); // 禁用宏 Dispatch excels = app.getProperty("Workbooks").toDispatch();// 获取文挡属性 System.out.println("打开文档 >>> " + inputFile); // 调用Documents对象中Open方法打开文档,并返回打开的文档对象Document excel = Dispatch.call(excels, "Open", inputFile, false, true).toDispatch(); // 调用Document对象方法,将文档保存为pdf格式 System.out.println("转换文档 [" + inputFile + "] >>> [" + pdfFile + "]"); // Excel 不能调用SaveAs方法 Dispatch.call(excel, "ExportAsFixedFormat", xlFormatPDF, pdfFile); long end = System.currentTimeMillis(); System.out.println("用时:" + (end - start) + "ms."); return true; } catch (Exception e) { e.printStackTrace(); System.out.println("========Error:文档转换失败:" + e.getMessage()); } finally { Dispatch.call(excel, "Close", false); System.out.println("关闭文档"); if (app != null) app.invoke("Quit", new Variant[] {}); } ComThread.Release(); ComThread.quitMainSTA(); return false; } /** * 测试 * * @param args * @author SHANHY */ public static void main(String[] args) { ConvertToPdf d = new ConvertToPdf(); d.convert2PDF("g:\\test.docx", "g:\\test.pdf"); d.convert2PDF("g:\\testppt.pptx", "g:\\testppt.pdf"); d.convert2PDF("g:\\testexcel.xlsx", "g:\\testexcel.pdf"); } }
读、写Word的简单示例
import com.jacob.activeX.ActiveXComponent; import com.jacob.com.Variant; import com.jacob.com.Dispatch; public class Word { String strDir = "c:jacob_1.9"; String strInputDoc = strDir + "file_in.doc"; String strOutputDoc = strDir + "file_out.doc"; String strOldText = "[label:import:1]"; String strNewText = "I am some horribly long sentence, so long that [insert anything]"; boolean isVisible = true; boolean isSaveOnExit = true; public Word() { ActiveXComponent oWord = new ActiveXComponent("Word.Application"); oWord.setProperty("Visible", new Variant(isVisible)); Dispatch oDocuments = oWord.getProperty("Documents").toDispatch(); Dispatch oDocument = Dispatch.call(oDocuments, "Open", strInputDoc). toDispatch(); Dispatch oSelection = oWord.getProperty("Selection").toDispatch(); Dispatch oFind = oWord.call(oSelection, "Find").toDispatch(); Dispatch.put(oFind, "Text", strOldText); Dispatch.call(oFind, "Execute"); Dispatch.put(oSelection, "Text", strNewText); Dispatch.call(oSelection, "MoveDown"); Dispatch.put(oSelection, "Text", "nSo we got the next line including BR.n"); Dispatch oFont = Dispatch.get(oSelection, "Font").toDispatch(); Dispatch.put(oFont, "Bold", "1"); Dispatch.put(oFont, "Italic", "1"); Dispatch.put(oFont, "Underline", "0"); Dispatch oAlign = Dispatch.get(oSelection, "ParagraphFormat"). toDispatch(); Dispatch.put(oAlign, "Alignment", "3"); Dispatch oWordBasic = (Dispatch) Dispatch.call(oWord, "WordBasic"). getDispatch(); Dispatch.call(oWordBasic, "FileSaveAs", strOutputDoc); Dispatch.call(oDocument, "Close", new Variant(isSaveOnExit)); oWord.invoke("Quit", new Variant[0]); } public static void main(String[] args) { Word word = new Word(); } }
4、jacob.jar的结构
jacob包括两个部分:
com.jacob.activeX: ActiveXComponent类
com.jacob.com: 其它类和元素
5、Jacob类
Jacob的结构很简单,包含以下几个类:
ActiveXComponent Class:封装了Dispatch对象,用于创建一个封装了COM组件对象的Java Object
Dispatch Class:用于指向封装后的MS数据结构。常用的方法有call,subcall,get,invoke…后面会介绍使用方法。
Variant Class:用于映射COM的Variant数据类型。提供Java和COM的数据交换。
ComException Class:异常类
6、Jacob方法
用于访问COM/DLL对象的方法,读取、修改COM/DLL对象的属性。
call method:属于Dispatch类。用于访问COM/DLL对象的方法。方法进行了重载,方便不同场合调用。返回一个Variant类型的值。
callSub method:使用方法和call一样,不过它不返回值。
get method:读取COM对象的属性值,返回一个Variant类型值。
put method:设置COM对象的属性值。
invoke method:call的另一种用法,更复杂一些。
invokesub method:subcall的另一种用法
getProperty method:属于ActiveXComponent类,读取属性值,返回一个Variant类型值。
setProperty method:属于ActiveXComponent类,设置属性值。
要注意一点:在使用Jacob时,很重要的一点是,用户必须安装有Office的应用程序。否则也就无法建立Java-COM桥,进而无法解析了。
7、最后列一下ActiveX 控件名称
MS控件名 |
a1的值 |
InternetExplorer |
InternetExplorer.Application |
Excel |
Excel.Application |
Word |
Word.Application |
Powerpoint |
Powerpoint.Application |
vb/java Script |
ScriptControl |
windows media Player |
WMPlayer.OCX |
Outlook |
Outlook.Application |
Visio |
Visio.Application |
DAO |
DAO.PrivateDBEngine.35 |
MultiFace |
MultiFace.Face |
部分内容参考: http://www.cnblogs.com/vulcans/archive/2009/09/08/1562588.html