JAVA中使用openoffice将Excel转PDF再转图片功能的实现代码

需求

公司一个小项目要结尾了, 有非常多的表格, 而且非常复杂, 例如

例如：（这表格, 有想死的心…）

看到这样的表格，第一反应是n脸懵逼，这得做到啥时候啊，最后想到用一个方法，让客户自己玩！！
平台提供excel模版下载，客户下载填写完再提交excel，平台再将excel转pdf，顺便将pdf转成图片，给前端展示，想法简单，方案可行，开工！

方案:

• windows server下用 jacob, windows上可完美运行, 但是！！！linux上不支持jacob！！！（非常重要！！）
• poi + itext，貌似不错
• openoffice，跨平台

本文选用openoffice，各位看官可自选用itext + poi，自己判别！当然也可以用jacob，前提是你不需要在linux中运行项目。

安装软件：下载传送门

win：

下载完成后，一路next，最好默认路径安装，免得折腾
完成后 win + r 填入 dcomcnfg 打开组件服务

设置openoffice组件服务， 都设成system

再设置标识为：交互式用户

进入到安装目录，如果路径是默认的，则在 c:\program files (x86)\openoffice 4\program 下面，
进到这个路径下，按住 shift 再点击鼠标右键，在此处打开命令窗口，输入 soffice -headless-accept=“socket,host=127.0.0.1,port=8100;urp;”-nofirststartwizard， 查看是否启动成功， 黑窗口输入 netstat -ano

windows下安装完毕！

参考： https://blog.****.net/qq_30987095/article/details/78789103

linux：下载传送门

根据自己的linux系统选择rpm包或者deb，如果是ubuntu则选deb，其他就选rpm包，查看当前操作系统是ubuntu还是centos

[root@iz2zeg3etf08f6snef3lgrz ~]#  lsb_release -a
lsb version:	:(略)
distributor id:	centos
description:	centos linux release (略)
release:	(略)
codename:	core

下载完毕后，利用ssh工具上传到服务器上！

>  tar -zxvf apache_openoffice_4.1.3_linux_x86-64_install-rpm_zh-cn.tar.gz
(略)......

> ls 
zh-cn
> cd zh-cn/rpms
> ls
openoffice-core01-4.1.3-9783.x86_64.rpm             openoffice-impress-4.1.3-9783.x86_64.rpm        openoffice-zh-cn-4.1.3-9783.x86_64.rpm
openoffice-4.1.3-9783.x86_64.rpm                openoffice-core02-4.1.3-9783.x86_64.rpm             openoffice-javafilter-4.1.3-9783.x86_64.rpm     openoffice-zh-cn-base-4.1.3-9783.x86_64.rpm
openoffice-base-4.1.3-9783.x86_64.rpm           openoffice-core03-4.1.3-9783.x86_64.rpm             openoffice-math-4.1.3-9783.x86_64.rpm           openoffice-zh-cn-calc-4.1.3-9783.x86_64.rpm
openoffice-brand-base-4.1.3-9783.x86_64.rpm     openoffice-core04-4.1.3-9783.x86_64.rpm             openoffice-ogltrans-4.1.3-9783.x86_64.rpm       openoffice-zh-cn-draw-4.1.3-9783.x86_64.rpm
openoffice-brand-calc-4.1.3-9783.x86_64.rpm     openoffice-core05-4.1.3-9783.x86_64.rpm             openoffice-onlineupdate-4.1.3-9783.x86_64.rpm   openoffice-zh-cn-help-4.1.3-9783.x86_64.rpm
openoffice-brand-draw-4.1.3-9783.x86_64.rpm     openoffice-core06-4.1.3-9783.x86_64.rpm             openoffice-ooofonts-4.1.3-9783.x86_64.rpm       openoffice-zh-cn-impress-4.1.3-9783.x86_64.rpm
openoffice-brand-impress-4.1.3-9783.x86_64.rpm  openoffice-core07-4.1.3-9783.x86_64.rpm             openoffice-ooolinguistic-4.1.3-9783.x86_64.rpm  openoffice-zh-cn-math-4.1.3-9783.x86_64.rpm
openoffice-brand-math-4.1.3-9783.x86_64.rpm     openoffice-draw-4.1.3-9783.x86_64.rpm               openoffice-pyuno-4.1.3-9783.x86_64.rpm          openoffice-zh-cn-res-4.1.3-9783.x86_64.rpm
openoffice-brand-writer-4.1.3-9783.x86_64.rpm   openoffice-gnome-integration-4.1.3-9783.x86_64.rpm  openoffice-ure-4.1.3-9783.x86_64.rpm            openoffice-zh-cn-writer-4.1.3-9783.x86_64.rpm
openoffice-brand-zh-cn-4.1.3-9783.x86_64.rpm    openoffice-graphicfilter-4.1.3-9783.x86_64.rpm      openoffice-writer-4.1.3-9783.x86_64.rpm
openoffice-calc-4.1.3-9783.x86_64.rpm           openoffice-images-4.1.3-9783.x86_64.rpm             openoffice-xsltfilter-4.1.3-9783.x86_64.rpm

[注释：运行下面命令， 生成  desktop-integration包]
>  yum localinstall *.rpm
> （略...）
> cd desktop-integration/
> ls
>  openoffice4.1.3-freedesktop-menus-4.1.3-9783.noarch.rpm  
   openoffice4.1.3-mandriva-menus-4.1.3-9783.noarch.rpm 
   openoffice4.1.3-redhat-menus-4.1.3-9783.noarch.rpm  
   openoffice4.1.3-suse-menus-4.1.3-9783.noarch.rpm

>  yum localinstall  openoffice4.1.3-redhat-menus-4.1.3-9783.noarch.rpm  

ok， 安装完毕了！ 启动服务
进入到默认安装目录下

> cd /opt/openoffice4/program/
[注释：临时启动]
> /opt/openoffice4/program/soffice -headless -accept="socket,host=127.0.0.1,port=8100;urp;" -nofirststartwizard
[注释：或后台启动]
> /opt/openoffice4/program/soffice -headless -accept="socket,host=127.0.0.1,port=8100;urp;" -nofirststartwizard &

[注释：永久启动]
> nohup /opt/openoffice4/program/soffice -headless -accept="socket,host=127.0.0.1,port=8100;urp;" -nofirststartwizard &

[注释：查看是否启动成功]
> ps -ef|grep openoffice
root      7541  7527  0 10:19 pts/0    00:00:12 /opt/openoffice4/program/soffice.bin -headless -accept=socket,host=127.0.0.1,port=8100;urp; -nofirststartwizard
root      8964  7066  0 18:18 pts/3    00:00:00 grep --color=auto openoffice

或者

> netstat -tunlp |grep 
tcp        0      0 127.0.0.1:8100          0.0.0.0:*               listen      7541/soffice.bin

linux下安装成功！

开始撸码：

pom.xml

		<!-- openoffice 相关依赖 -->
        <dependency>
            <groupid>commons-io</groupid>
            <artifactid>commons-io</artifactid>
            <version>1.4</version>
        </dependency>
        <dependency>
            <groupid>org.openoffice</groupid>
            <artifactid>juh</artifactid>
            <version>3.2.1</version>
        </dependency>
        <dependency>
            <groupid>org.openoffice</groupid>
            <artifactid>ridl</artifactid>
            <version>3.2.1</version>
        </dependency>
        <dependency>
            <groupid>org.openoffice</groupid>
            <artifactid>unoil</artifactid>
            <version>3.2.1</version>
        </dependency>

	    <!-- pdf2img -->
        <dependency>
            <groupid>org.apache.pdfbox</groupid>
            <artifactid>pdfbox</artifactid>
            <version>2.0.6</version>
        </dependency>
        <dependency>
            <groupid>org.apache.pdfbox</groupid>
            <artifactid>pdfbox-tools</artifactid>
            <version>2.0.6</version>
        </dependency>

openofficeutils

import java.awt.*;
import java.io.file;
import java.io.inputstream;
import java.io.outputstream;
import java.net.connectexception;

import org.apache.commons.lang.stringutils;

import com.artofsolving.jodconverter.defaultdocumentformatregistry;
import com.artofsolving.jodconverter.documentconverter;
import com.artofsolving.jodconverter.documentformatregistry;
import com.artofsolving.jodconverter.openoffice.connection.openofficeconnection;
import com.artofsolving.jodconverter.openoffice.connection.socketopenofficeconnection;
import com.artofsolving.jodconverter.openoffice.converter.openofficedocumentconverter;
import com.artofsolving.jodconverter.openoffice.converter.streamopenofficedocumentconverter;
import org.apache.pdfbox.pdmodel.pddocument;
import org.apache.pdfbox.pdmodel.pdpage;
import org.apache.pdfbox.pdmodel.pdpagetree;
import org.apache.pdfbox.rendering.imagetype;
import org.apache.pdfbox.rendering.pdfrenderer;
import org.apache.pdfbox.tools.imageio.imageioutil;

import java.awt.image.bufferedimage;
import java.awt.image.renderedimage;
import java.io.file;
import java.io.ioexception;
import java.util.arraylist;
import java.util.list;
import javax.imageio.imageio;

/**
 * 
 * @author josnow
 * @date 2017年5月9日 下午12:38:39
 * @version 1.0.0
 * @desc openoffice转换工具
 */
public class openofficeutils {

    public static final string local_host = "localhost";
    public static final int local_port = 8100;

    // format
    public static documentformatregistry formatfactory = new defaultdocumentformatregistry();

    /**
     *
     * @desc
     * @auth josnow
     * @date 2017年6月9日 下午4:11:04
     * @param inputfilepath
     *            待转换的文件路径
     * @param outputfilepath
     *            输出文件路径
     */
    public static void convert(string inputfilepath, string outputfilepath) throws connectexception {
        convert(inputfilepath, outputfilepath, local_host, local_port);
    }

    /**
     *
     * @desc
     * @auth josnow
     * @date 2017年6月9日 下午4:12:29
     * @param inputfilepath
     *            待转换的文件路径
     * @param outputfilepath
     *            输出文件路径
     * @param connectip
     *            远程调用ip
     * @param connectport
     *            远程调用端口
     */
    public static void convert(string inputfilepath, string outputfilepath, string connectip, int connectport)
            throws connectexception {
        if (stringutils.isempty(inputfilepath) || stringutils.isempty(outputfilepath)
                || stringutils.isempty(connectip)) {
            throw new illegalargumentexception("参数异常！！");
        }
        openofficeconnection connection = new socketopenofficeconnection(connectip, connectport);
        connection.connect();
 
// 		  todo excel转成pdf默认是a4纸
//        documentconverter converter = getconverter(connectip, connection);
//        converter.convert(new file(inputfilepath), new file(outputfilepath));

// 		  todo excel转成pdf默认是a4纸， 如果现实折行，则自定义converterdocument，改变纸张大小
        converterdocument converterdocument = new converterdocument(connection);
        converterdocument.convert(new file(inputfilepath), new file(outputfilepath));

        connection.disconnect();
    }

    /**
     *
     * @desc
     * @auth josnow
     * @date 2017年6月9日 下午4:08:26
     * @param inputstream
     * @param inputfileextension
     *            待转换文件的扩展名，例如: xls，doc
     * @param outputstream
     * @param outputfileextension
     *            输出文件扩展名，例如：pdf
     */
    public static void convert(inputstream inputstream, string inputfileextension, outputstream outputstream,
            string outputfileextension) throws connectexception {
        convert(inputstream, inputfileextension, outputstream, outputfileextension, local_host, local_port);
    }

    /**
     *
     * @desc
     * @auth josnow
     * @date 2017年6月9日 下午4:10:21
     * @param inputstream
     * @param inputfileextension
     *            待转换文件的扩展名，例如: xls，doc
     * @param outputstream
     * @param outputfileextension
     *            输出文件扩展名，例如：pdf
     * @param connectip
     *            远程调用ip
     * @param connectport
     *            远程调用端口
     */
    public static void convert(inputstream inputstream, string inputfileextension, outputstream outputstream,
            string outputfileextension, string connectip, int connectport) throws connectexception {

        if (inputstream == null || stringutils.isempty(inputfileextension) || outputstream == null
                || stringutils.isempty(outputfileextension) || stringutils.isempty(connectip)) {
            throw new illegalargumentexception("参数异常！！");
        }

        openofficeconnection connection = new socketopenofficeconnection(connectip, connectport);
        connection.connect();
        documentconverter converter = getconverter(connectip, connection);

        converter.convert(inputstream, formatfactory.getformatbyfileextension(inputfileextension), outputstream,
                formatfactory.getformatbyfileextension(outputfileextension));
        connection.disconnect();
    }

    private static documentconverter getconverter(string connectip, openofficeconnection connection) {
        documentconverter converter = "localhost".equals(connectip) || "127.0.0.1".equals(connectip)
                || "0:0:0:0:0:0:0:1".equals(connectip) ? new openofficedocumentconverter(connection)
                        : new streamopenofficedocumentconverter(connection);
        return converter;
    }

    public static void main(string[] args) throws exception {
        openofficeutils.convert("d:\\test.xls", "d:\\test.pdf");
        pdf2image(new file("d:\\test.pdf"));
    }

    /**
     * pdf to big image
     * github: https://github.com/mmtou/pdf2img
     * @param pdffile pdf文件路径
     * @return big image file
     * @throws exception
     */
    public static file pdf2image(file pdffile) throws exception {
        // 拼成图片后的宽度和高度
        int w = 0;
        int h = 0;
        list<bufferedimage> images = new arraylist();
        // 生成图片后的路径
        string path = pdffile.getparent() + file.separator;
        string filename = pdffile.getname().replace(".pdf", "");

        file destinationfile = new file(path);
        if (!destinationfile.exists()) {
            destinationfile.mkdir();
        }
        pddocument document = pddocument.load(pdffile);
        pdpagetree list = document.getdocumentcatalog().getpages();
        int pagecounter = 0;
        for (pdpage page : list) {
            pdfrenderer pdfrenderer = new pdfrenderer(document);
            bufferedimage image = pdfrenderer.renderimagewithdpi(pagecounter, 100, imagetype.rgb);
            string target = path + filename + "-" + (pagecounter++) + ".png";
            imageioutil.writeimage(image, target, 100);

            w = image.getwidth();
            h += image.getheight();
            images.add(image);
            new file(target).delete();
        }
        document.close();

        bufferedimage combined = new bufferedimage(w, h, bufferedimage.type_int_argb);
        graphics g = combined.getgraphics();

        int y = 0;
        for (bufferedimage image : images) {
            g.drawimage(image, 0, y, null);
            y += image.getheight();
        }

        // save as new image
        file image = new file(path, filename + ".png");
        imageio.write(combined, "png", image);
        return image;
    }

} 

自定义 converterdocument

import com.artofsolving.jodconverter.openoffice.connection.openofficeconnection;
import com.artofsolving.jodconverter.openoffice.converter.openofficedocumentconverter;
import com.artofsolving.jodconverter.openoffice.converter.streamopenofficedocumentconverter;
import com.sun.star.awt.size;
import com.sun.star.beans.propertyvalue;
import com.sun.star.lang.xcomponent;
import com.sun.star.uno.unoruntime;
import com.sun.star.view.paperformat;
import com.sun.star.view.xprintable;

public class converterdocument extends streamopenofficedocumentconverter {


    public converterdocument(openofficeconnection connection) {
        super(connection);
    }


    public final static size a5, a4, a3;
    public final static size b4, b5, b6;
    public final static size kaoqinreport;

    static {
        a5 = new size(14800, 21000);
        a4 = new size(21000, 29700);
        a3 = new size(29700, 42000);

        b4 = new size(25000, 35300);
        b5 = new size(17600, 25000);
        b6 = new size(12500, 17600);

//        kaoqinreport = new size(29700, 27940);  //最大限度  宽 1600000
        kaoqinreport = new size(25000, 21000);;
    }


    @override
    protected void refreshdocument(xcomponent document) {
        super.refreshdocument(document);

        // the default paper format and orientation is a4 and portrait. to
        // change paper orientation
        // re set page size
        xprintable xprintable = (xprintable) unoruntime.queryinterface(xprintable.class, document);
        propertyvalue[] printerdesc = new propertyvalue[2];

        // paper orientation
//  printerdesc[0] = new propertyvalue();
//  printerdesc[0].name = "paperorientation";
//  printerdesc[0].value = paperorientation.portrait;

        // paper format
        printerdesc[0] = new propertyvalue();
        printerdesc[0].name = "paperformat";
        printerdesc[0].value = paperformat.user;

        // paper size
        printerdesc[1] = new propertyvalue();
        printerdesc[1].name = "papersize";
        printerdesc[1].value = kaoqinreport;

        try {
            xprintable.setprinter(printerdesc);
        } catch (exception e) {
            e.printstacktrace();
        }
    }
} 

使用：

	public static void main(string[] args) throws exception {
        openofficeutils.convert("d:\\test.xls", "d:\\test.pdf");
        pdf2image(new file("d:\\test.pdf"));
	}

参考： https://blog.****.net/liuhualiang/article/details/14094019?utm_source=blogxgwz6

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