Jacob 是Java-COM Bridge的縮寫，它在Java與微軟的COM元件之間構建一座橋樑。使用Jacob自帶的DLL動態連結庫，並通過JNI的方式實現了在Java平臺上對COM程式的呼叫。Jacob下載的地址為：

http://sourceforge.net/project/showfiles.php?group_id=109543&package_id=118368

配置：

(1)將解壓包中的jacob.dll（x86常用,x64)拷到jdk安裝目錄下的jre\bin資料夾或windows安裝路徑下的WINDOWS\system32資料夾下

(2)將jacob.jar檔案拷到classpath下即可

常見問題解決:

對於”java.lang.UnsatisfiedLinkError: C:\WINDOWS\system32\jacob-1.14.3-x86.dll: 由於應用程式配置不正確，應用程式未能啟動。重新安裝應用程式可能會糾正”這個問題,可以通過

重新下載Jacob的jar及dll檔案(最好版本比現在的低,如1.11)解決

例項製作（主要功能：標題製作，表格製作，合併表格，替換文字，頁首頁尾,書籤處理）:

import com.jacob.activeX.ActiveXComponent;
import com.jacob.com.Dispatch;
import com.jacob.com.Variant;

public class WordOperate {
 public static void main(String args[]) {
  ActiveXComponent wordApp = new ActiveXComponent("Word.Application"); // 啟動word
  // Set the visible property as required.
  Dispatch.put(wordApp, "Visible", new Variant(true));// //設定word可見
  Dispatch docs = wordApp.getProperty("Documents").toDispatch();
  // String inFile = "d:\\test.doc";
  // Dispatch doc = Dispatch.invoke(docs, "Open", Dispatch.Method,
  // new Object[] { inFile, new Variant(false), new Variant(false)},//引數3,false:可寫，true:只讀
  // new int[1]).toDispatch();//開啟文件
  Dispatch document = Dispatch.call(docs, "Add").toDispatch();// create new document

  String userName = wordApp.getPropertyAsString("Username");// 顯示使用者資訊
  System.out.println("使用者名稱:" + userName);
  // 文件對齊，字型設定////////////////////////
  Dispatch selection = Dispatch.get(wordApp, "Selection").toDispatch();
  Dispatch align = Dispatch.get(selection, "ParagraphFormat")
    .toDispatch(); // 行列格式化需要的物件
  Dispatch font = Dispatch.get(selection, "Font").toDispatch(); // 字型格式化需要的物件
  // 標題處理////////////////////////
  Dispatch.put(align, "Alignment", "1"); // 1:置中 2:靠右 3:靠左
  Dispatch.put(font, "Bold", "1"); // 字型租體
  Dispatch.put(font, "Color", "1,0,0,0"); // 字型顏色紅色
  Dispatch.call(selection, "TypeText", "Word文件處理"); // 寫入標題內容
  Dispatch.call(selection, "TypeParagraph"); // 空一行段落
  Dispatch.put(align, "Alignment", "3"); // 1:置中 2:靠右 3:靠左
  Dispatch.put(selection, "Text", "        ");
  Dispatch.call(selection, "MoveDown"); // 游標標往下一行
  //表格處理////////////////////////
  Dispatch tables = Dispatch.get(document, "Tables").toDispatch();
  Dispatch range = Dispatch.get(selection, "Range").toDispatch();
  Dispatch table1 = Dispatch.call(tables, "Add", range, new Variant(3),
    new Variant(2), new Variant(1)).toDispatch(); // 設定行數,列數,表格外框寬度
  // 所有表格
  Variant tableAmount = Dispatch.get(tables, "count");
  System.out.println(tableAmount);
  // 要填充的表格
  Dispatch t1 = Dispatch.call(tables, "Item", new Variant(1))
    .toDispatch();
  Dispatch t1_row = Dispatch.get(t1, "rows").toDispatch();// 所有行
  int t1_rowNum = Dispatch.get(t1_row, "count").getInt();
  Dispatch.call(Dispatch.get(t1, "columns").toDispatch(), "AutoFit");// 自動調整
  int t1_colNum = Dispatch.get(Dispatch.get(t1, "columns").toDispatch(),
    "count").getInt();
  System.out.println(t1_rowNum + " " + t1_colNum);
  for (int i = 1; i <= t1_rowNum; i++) {
   for (int j = 1; j <= t1_colNum; j++) {
    Dispatch cell = Dispatch.call(t1, "Cell", new Variant(i),
      new Variant(j)).toDispatch();// 行，列
    Dispatch.call(cell, "Select");
    Dispatch.put(selection, "Text", "cell" + i + j); // 寫入word的內容
    Dispatch.put(font, "Bold", "0"); // 字型租體(1:租體 0:取消租體)
    Dispatch.put(font, "Color", "1,1,1,0"); // 字型顏色
    Dispatch.put(font, "Italic", "1"); // 斜體 1:斜體 0:取消斜體
    Dispatch.put(font, "Underline", "1"); // 下劃線
    Dispatch Range = Dispatch.get(cell, "Range").toDispatch();
    String cellContent = Dispatch.get(Range, "Text").toString();
    System.out.println((cellContent.substring(0, cellContent
      .length() - 1)).trim());
   }
   Dispatch.call(selection, "MoveDown"); // 游標往下一行(才不會輸入蓋過上一輸入位置)
  }
  //合併單元格////////////////////////
  Dispatch.put(selection, "Text", "        ");
  Dispatch.call(selection, "MoveDown"); // 游標標往下一行
  Dispatch range2 = Dispatch.get(selection, "Range").toDispatch();
  Dispatch table2 = Dispatch.call(tables, "Add", range2, new Variant(8),
    new Variant(4), new Variant(1)).toDispatch(); // 設定行數,列數,表格外框寬度
  Dispatch t2 = Dispatch.call(tables, "Item", new Variant(2))
    .toDispatch();
  Dispatch beginCell = Dispatch.call(t2, "Cell", new Variant(1),
    new Variant(1)).toDispatch();
  Dispatch endCell = Dispatch.call(t2, "Cell", new Variant(4),
    new Variant(4)).toDispatch();
  Dispatch.call(beginCell, "Merge", endCell);

  for (int row = 1; row <= Dispatch.get(
    Dispatch.get(t2, "rows").toDispatch(), "count").getInt(); row++) {
   for (int col = 1; col <= Dispatch.get(
     Dispatch.get(t2, "columns").toDispatch(), "count").getInt(); col++) {

    if (row == 1) {
     Dispatch cell = Dispatch.call(t2, "Cell", new Variant(1),
       new Variant(1)).toDispatch();// 行，列
     Dispatch.call(cell, "Select");
     Dispatch.put(font, "Color", "1,1,1,0"); // 字型顏色
     Dispatch.put(selection, "Text", "merge Cell!");
    } else {
     Dispatch cell = Dispatch.call(t2, "Cell", new Variant(row),
       new Variant(col)).toDispatch();// 行，列
     Dispatch.call(cell, "Select");
     Dispatch.put(font, "Color", "1,1,1,0"); // 字型顏色
     Dispatch.put(selection, "Text", "cell" + row + col);
    }
   }
   Dispatch.call(selection, "MoveDown");
  }
  //Dispatch.call(selection, "MoveRight", new Variant(1), new Variant(1));// 取消選擇
  // Object content = Dispatch.get(doc,"Content").toDispatch();
  // Word文件內容查詢及替換////////////////////////
  Dispatch.call(selection, "TypeParagraph"); // 空一行段落
  Dispatch.put(align, "Alignment", "3"); // 1:置中 2:靠右 3:靠左
  Dispatch.put(font, "Color", 0);
  Dispatch.put(selection, "Text", "歡迎，Hello，world!");
  Dispatch.call(selection, "HomeKey", new Variant(6));// 移到開頭
  Dispatch find = Dispatch.call(selection, "Find").toDispatch();// 獲得Find元件
  Dispatch.put(find, "Text", "hello"); // 查詢字串"hello"
  Dispatch.put(find, "Forward", "True");// 向前查詢
  // Dispatch.put(find, "Format", "True");// 設定格式
  Dispatch.put(find, "MatchCase", "false");// 大小寫匹配
  Dispatch.put(find, "MatchWholeWord", "True"); // 全字匹配
  Dispatch.call(find, "Execute"); // 執行查詢
  Dispatch.put(selection, "Text", "你好");// 替換為"你好"
  //使用方法傳入的引數parameter呼叫word文件中的MyWordMacro巨集//
  //Dispatch.call(document,macroName,parameter);
  //Dispatch.invoke(document,macroName,Dispatch.Method,parameter,new int[1]);
  //頁首，頁尾處理////////////////////////
  Dispatch ActiveWindow = wordApp.getProperty("ActiveWindow")
    .toDispatch();
  Dispatch ActivePane = Dispatch.get(ActiveWindow, "ActivePane")
    .toDispatch();
  Dispatch View = Dispatch.get(ActivePane, "View").toDispatch();
  Dispatch.put(View, "SeekView", "9"); //9是設定頁首
  Dispatch.put(align, "Alignment", "1"); // 置中
  Dispatch.put(selection, "Text", "這裡是頁首"); // 初始化時間
  Dispatch.put(View, "SeekView", "10"); // 10是設定頁尾
  Dispatch.put(align, "Alignment", "2"); // 靠右
  Dispatch.put(selection, "Text", "這裡是頁尾"); // 初始化從1開始
  //書籤處理(開啟文件時處理)////////////////////////
  //Dispatch activeDocument = wordApp.getProperty("ActiveDocument").toDispatch();
  Dispatch bookMarks = Dispatch.call(document, "Bookmarks").toDispatch();
  boolean isExist = Dispatch.call(bookMarks, "Exists", "bookMark1")
    .getBoolean();
  if (isExist == true) {
   Dispatch rangeItem1 = Dispatch.call(bookMarks, "Item", "bookMark1")
     .toDispatch();
   Dispatch range1 = Dispatch.call(rangeItem1, "Range").toDispatch();
   Dispatch.put(range1, "Text", new Variant("當前是書籤1的文字資訊!"));
   String bookMark1Value = Dispatch.get(range1, "Text").toString();
   System.out.println(bookMark1Value);
  } else {
   System.out.println("當前書籤不存在,重新建立!");
   Dispatch.call(bookMarks, "Add", "bookMark1", selection);
   Dispatch rangeItem1 = Dispatch.call(bookMarks, "Item", "bookMark1")
   .toDispatch();
   Dispatch range1 = Dispatch.call(rangeItem1, "Range").toDispatch();
   Dispatch.put(range1, "Text", new Variant("當前是書籤1的文字資訊!"));
   String bookMark1Value = Dispatch.get(range1, "Text").toString();
   System.out.println(bookMark1Value); 

  }

  //儲存操作////////////////////////
  Dispatch.call(document, "SaveAs", "D:/wordOperate.doc");
  //Dispatch.invoke((Dispatch) doc, "SaveAs", Dispatch.Method, new Object[]{htmlPath, new Variant(8)}, new int[1]);   //生成html檔案
  // 0 = wdDoNotSaveChanges
  // -1 = wdSaveChanges
  // -2 = wdPromptToSaveChanges
  //Dispatch.call(document, "Close", new Variant(0));
  // // worddoc.olefunction("protect",2,true,"");
  // // Dispatch bookMarks = wordApp.call(docs,"Bookmarks").toDispatch();
  // // System.out.println("bookmarks"+bookMarks.getProgramId());
  // //Dispatch.call(doc, "Save"); //儲存
  // // Dispatch.call(doc, "Close", new Variant(true));
  // //wordApp.invoke("Quit",new Variant[]{});
  // wordApp.safeRelease();//Finalizers call this method
 }
}