JAVA中使用openoffice将Excel转PDF再转图片功能的实现代码
作者：小漆同学
这篇文章主要介绍了JAVA中使用openoffice将Excel转PDF再转图片功能实现,本文通过实例代码给大家介绍的非常详细，对大家的学习或工作具有一定的参考借鉴价值，需要的朋友可以参考下
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://www.jb51.net/article/142512.htm
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.csdn.net/liuhualiang/article/details/14094019?utm_source=blogxgwz6
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