文档转换文件格式

Word 转 PDF

/**
    * word 转 pdf
    *
    * @param word
    * @param pdf
    * @return
    */
public static boolean word2pdf(String word, String pdf) {
    ActiveXComponent wps = null;
    Dispatch doc = null;
    // word 保存为 pdf 格式宏，值为 17
    int fmt = 17;
    long start = System.currentTimeMillis();
    try {
        /**
            * 参数为 Word.Application：需要安装 Office
            * 参数为 kwps.application：需要安装 WPS
            * doc 转 pdf 时，用 Word.Application 报错
            */
        wps = new ActiveXComponent("kwps.application");
        wps.setProperty("visible", new Variant(false));
        Dispatch docs = wps.getProperty("Documents").toDispatch();

//                doc = Dispatch.invoke(docs, "Open", Dispatch.Method,
//                		new Object[]{word, new Variant(false),new Variant(true)},
//                		new int[1]).toDispatch();
        Variant foo = Dispatch.call(docs, "Open", word, false, true);
        if (foo.getvt() == 0) {
            return false;
        }
        doc = foo.toDispatch();
//                Dispatch.invoke(doc, "SaveAs", Dispatch.Method, new Object[]{pdf,new Variant(fmt)}, new int[1]);
        Dispatch.call(doc, "SaveAs", pdf, fmt);
        long end = System.currentTimeMillis();
        System.out.println("耗时：" + (end - start) + "ms.");
        return true;
    } catch (Exception ex) {
        ex.printStackTrace();
        System.out.println("转化出错：" + ex.getMessage());
        return false;
    } finally {
        Dispatch.call(doc, "Close", false);
        System.out.println("关闭WPS");
        if (wps != null) {
            wps.invoke("Quit", new Variant[]{});
        }
    }
}

参考：

Java 使用jacob实现doc转pdf（附带其他方法分析）

通过jacob实现office在线预览

Doc 与 Docx 格式互相转换

public static void convertWordFmt(String srcPath, String descPath, int fmt) {
    long startTime = System.currentTimeMillis();

    // 实例化 ComThread 线程与 ActiveXComponent
    ComThread.InitSTA();

    /**
        * 参数为 Word.Application：需要安装 Office
        * 参数为 kwps.application：需要安装 WPS
        * doc 转 docx 时，用 Word.Application 报错
        */
    ActiveXComponent app = new ActiveXComponent("kwps.Application");

    try {
        // 文档隐藏时进行应用操作
        app.setProperty("Visible", new Variant(false));
        // 实例化模板 Document 对象
        Dispatch document = app.getProperty("Documents").toDispatch();
        // 打开 Document 进行另存为操作
        Dispatch doc = Dispatch.invoke(document, "Open", Dispatch.Method,
                new Object[]{srcPath, new Variant(true), new Variant(true)}, new int[1]).toDispatch();
        Dispatch.invoke(doc, "SaveAs", Dispatch.Method, new Object[]{descPath, new Variant(fmt)}, new int[1]);
        Dispatch.call(doc, "Close", new Variant(false));
    } finally {
        // 释放线程与 ActiveXComponent
        app.invoke("Quit", new Variant[]{});
        ComThread.Release();
    }

    System.out.println("convert word format successfully, " +
            "take " + (System.currentTimeMillis() - startTime) / 1000 + " seconds.");
}

参考：JAVA实现Doc与Docx互转