[置顶] 利用openoffice+jodconverter-code-3.0-bate4 把ppt转图片

安装openoffice4  （用于把文档(ppt)转成pdf）根据系统的位数安装
使用jodconverter-core3.0-beta-4（要上传maven本地仓库）
安装ImageMagick：yum
install ImageMagick（用于pdf转图片）
安装pdftotext  用于提取文字大纲  yum install poppler-utils
perl脚本（用于提取pdf文档的文字大纲）

使用jodconverter调用OpenOffice 将office文档转换为PDF时。如果转换程序异常中止而OpenOffice并没有停止运行的话。

openoffice   

1、启动tomcat时，启动openoffice服务（个人感觉有风险问题）

2、手工用命令，启动openoffice服务，在使用链接服务（推荐）

package com.document.servers.impl;

import java.io.File;
import java.net.ConnectException;

import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;

import org.artofsolving.jodconverter.OfficeDocumentConverter;
import org.artofsolving.jodconverter.office.DefaultOfficeManagerConfiguration;
import org.artofsolving.jodconverter.office.ExternalOfficeManagerConfiguration;
import org.artofsolving.jodconverter.office.OfficeConnectionProtocol;
import org.artofsolving.jodconverter.office.OfficeManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;

//import com.artofsolving.jodconverter.DefaultDocumentFormatRegistry;
//import com.artofsolving.jodconverter.DocumentConverter;
//import com.artofsolving.jodconverter.DocumentFamily;
//import com.artofsolving.jodconverter.DocumentFormat;
//import com.artofsolving.jodconverter.openoffice.connection.OpenOfficeConnection;
//import com.artofsolving.jodconverter.openoffice.connection.SocketOpenOfficeConnection;
//import com.artofsolving.jodconverter.openoffice.converter.OpenOfficeDocumentConverter;
import com.document.servers.OfficeService;

/**
*  linux下：
*  cd  /opt/openoffice4/program
* ./soffice "-accept=socket,host=localhost,port=8100;urp;StarOffice.ServiceManager" -nologo -headless -nofirststartwizard &
*/
@Service("officeService")
public class OfficeServiceImpl implements OfficeService {

private static final Logger logger = LoggerFactory.getLogger(OfficeServiceImpl.class);

private OfficeManager officeManager;
private OfficeDocumentConverter documentConverter;

//    @PostConstruct
//    public void init() throws Exception {
//        // TODO Auto-generated method stub
//        officeManager = new DefaultOfficeManagerConfiguration().setOfficeHome("/opt/openoffice4").buildOfficeManager();
//
//        documentConverter = new OfficeDocumentConverter(officeManager);
//        // officeManager.stop();
//
//        logger.warn("openoffice starting....");
//        try {
//            officeManager.start();
//            logger.warn("openoffice started");
//        } catch (Exception e) {
//            logger.error("office start failed:{}", e);
//        }
//    }
//
//    @PreDestroy
//    public void destroy() throws Exception {
//        // TODO Auto-generated method stub
//        logger.info("shutdown office service....");
//        if (officeManager != null) {
//            try {
//
//                officeManager.stop();
//                logger.info("office closed");
//            } catch (Exception e) {
//                logger.error("office close failed:{}", e);
//            }
//        }
//    }

//    public void convert(String inputfilename, String outputfilename) {
//        logger.info("convert...." + inputfilename + " to " + outputfilename);
//        documentConverter.convert(new File(inputfilename), new File(outputfilename));
//    }

public void manualConvert(String inputfilename, String outputfilename) {
logger.info("convert...." + inputfilename + " to " + outputfilename);
// connect to an OpenOffice.org instance running on port 8100
ExternalOfficeManagerConfiguration externalProcessOfficeManager = new
ExternalOfficeManagerConfiguration();
externalProcessOfficeManager.setConnectOnStart(true);
externalProcessOfficeManager.setPortNumber(8100);
officeManager = externalProcessOfficeManager.buildOfficeManager();
officeManager.start();
logger.info("openoffice服务已链接");
documentConverter = new OfficeDocumentConverter(officeManager);
documentConverter.convert(new File(inputfilename), new File(outputfilename));
}

}

转换处理方法

package com.document.servers.impl;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.apache.pdfbox.pdmodel.PDDocument;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.document.defined.model.ImagePPT;
import com.document.servers.OfficeService;
import com.document.servers.PPTConvertServers;
import com.document.tool.ImageMagickUtils;
import com.document.tool.SystemConfig;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.ppt.util.Command;

@Service("pPTConvertServers")
public class PPTConvertServersImpl implements PPTConvertServers {

private static final Logger logger = LoggerFactory.getLogger(PPTConvertServersImpl.class);

@Autowired
private OfficeService officeService;

/**
* (non-Javadoc)
* 利用openoffice把ppt转图片
*/
public Map<String, Object> deal_ppt(HttpServletRequest request, String filePath, String extension, String title, String filename)
throws Exception {

logger.info("ppt转pdf,{}");

// ppt文件地址
String ppt_target_file = filePath;

// pdf文件地址
String path = filePath.substring(0, filePath.lastIndexOf("."));
String pdf_target_file = path + ".pdf";
// 输出jpg文件地址
String images_target_file = path + "/jpg" + "-%d.jpg";

// if(exists(pdf_target_file)){
// unlink(pdf_target_file);//删除
// }
// copy(new File(ppt_target_file), ppt_target_file, true);

if (!extension.equals(".pdf")) {
officeService.manualConvert(ppt_target_file, pdf_target_file);// 转成pdf文件
}

StringWriter writer = new StringWriter();

// 提取文字大纲
String[] pdf_lines = extractOutLineFromPDF(pdf_target_file);

File filepath = new File(images_target_file);
File parentFile = filepath.getParentFile();
if (!parentFile.exists()) {
logger.info("创建图片目录");
parentFile.mkdirs();
}

Command.run("convert " + pdf_target_file + " " + images_target_file, writer);// 转成图片

String basePath = request.getScheme() + "://" + request.getServerName() + "/";
PDDocument document = PDDocument.load(new File(pdf_target_file));
int pageCount = document.getNumberOfPages();
document.close();

List<ImagePPT> list = new ArrayList<ImagePPT>();
String pathUrl = filename.substring(0, filename.lastIndexOf("."));
if (pageCount > 0) {
for (int i = 0; i < pageCount; i++) {
ImagePPT imagePPT = new ImagePPT();
imagePPT.setId(i + 1);
if (pdf_lines.length > 0) {
try {
imagePPT.setTitle(pdf_lines[i]);
} catch (Exception e) {
// TODO Auto-generated catch block
imagePPT.setTitle(title);
logger.info("title,数组越界");
//e.printStackTrace();
}
} else {
imagePPT.setTitle(title);
}
imagePPT.setUrl(basePath + "images/" + pathUrl + "/jpg-" + i + ".jpg");
imagePPT.setPreviewUrl(basePath + "preview/images/" + pathUrl + "/preview/pjpg-" + i + ".jpg");

//                String oimgDir = SystemConfig.getBlobDirectory() + pathUrl + "/jpg-" + i + ".jpg";
//                String pimgDir = SystemConfig.getBlobDirectory() + pathUrl + "/preview/pjpg-" + i + ".jpg";
//                File pfilepath = new File(pimgDir);
//                File pf = pfilepath.getParentFile();
//                if (!pf.exists()) {
//                    pf.mkdirs();
//                }
//ImageMagickUtils.scale(oimgDir, pimgDir, 240, 180);//预览图
list.add(imagePPT);
}
}
// 拼接json字符串

ObjectMapper objectMapper = new ObjectMapper();
String jsonlist = objectMapper.writeValueAsString(list);
// logger.info(jsonlist);
Map<String, Object> map=new HashMap<String, Object>();
map.put("json", jsonlist.toString());
map.put("totalPage", pageCount);
return map;

}

/**
* 文件已经上传过 ，进行替换性转换
*/
public Map<String, Object> replace_ppt(HttpServletRequest request, String filePath, String extension, String title,
String filename) throws Exception {

logger.info("替换，ppt转pdf,{}");

// ppt文件地址
String ppt_target_file = filePath;

// pdf文件地址
String path = filePath.substring(0, filePath.lastIndexOf("."));
String pdf_target_file = path + ".pdf";
// 输出jpg文件地址
String images_target_file = path + "/jpg" + "-%d.jpg";

if (!extension.equals(".pdf")) {
officeService.manualConvert(ppt_target_file, pdf_target_file);// 转成pdf文件
}

StringWriter writer = new StringWriter();

// 提取文字大纲
String[] pdf_lines = extractOutLineFromPDF(pdf_target_file);

File filepath = new File(images_target_file);
File parentFile = filepath.getParentFile();
if (!parentFile.exists()) {
logger.info("替换创建图片目录");
parentFile.mkdirs();
}
Command.run("convert " + pdf_target_file + " " + images_target_file, writer);// 转成图片

String basePath = request.getScheme() + "://" + request.getServerName() + "/";
PDDocument document = PDDocument.load(new File(pdf_target_file));
int pageCount = document.getNumberOfPages();
document.close();

List<ImagePPT> list = new ArrayList<ImagePPT>();
String pathUrl = filename.substring(0, filename.lastIndexOf("."));
if (pageCount > 0) {
for (int i = 0; i < pageCount; i++) {
ImagePPT imagePPT = new ImagePPT();
imagePPT.setId(i + 1);
if (pdf_lines.length > 0) {
try {
imagePPT.setTitle(pdf_lines[i]);
} catch (Exception e) {
// TODO Auto-generated catch block
imagePPT.setTitle(title);
logger.info("title,数组越界");
// e.printStackTrace();
}
} else {
imagePPT.setTitle(title);
}
imagePPT.setUrl(basePath + "images/" + pathUrl + "/jpg-" + i + ".jpg");
imagePPT.setPreviewUrl(basePath + "preview/images/" + pathUrl + "/preview/pjpg-" + i + ".jpg");

//                String oimgDir = SystemConfig.getBlobDirectory() + pathUrl + "/jpg-" + i + ".jpg";
//                String pimgDir = SystemConfig.getBlobDirectory() + pathUrl + "/preview/pjpg-" + i + ".jpg";
//                File pfilepath = new File(pimgDir);
//                File pf = pfilepath.getParentFile();
//                if (!pf.exists()) {
//                    pf.mkdirs();
//                }
//                ImageMagickUtils.scale(oimgDir, pimgDir, 240, 180);
list.add(imagePPT);
}
}
// 拼接json字符串

ObjectMapper objectMapper = new ObjectMapper();
String jsonlist = objectMapper.writeValueAsString(list);
// logger.info(jsonlist);
Map<String, Object> map=new HashMap<String, Object>();
map.put("json", jsonlist.toString());
map.put("totalPage", pageCount);
return map;

}

/**
* 提取pdf文字大纲
* @param pdf_file
* @return
* @throws UnsupportedEncodingException
* @throws Exception
*/
public static String[] extractOutLineFromPDF(String pdf_file) throws UnsupportedEncodingException {
String svndir = PPTConvertServersImpl.class.getResource("").getPath();
svndir = svndir.split("WEB-INF")[0];
svndir = svndir.replaceFirst("file:", "");
logger.info(svndir);

String command = "/usr/bin/perl " + svndir + "WEB-INF/sh/pdf_outline.pl " + pdf_file;
logger.info(command);

ByteArrayOutputStream writer = new ByteArrayOutputStream();

Command.run2(command, writer);
String outline = writer.toString("utf-8");
logger.info("title pdf,{}", outline);
String[] items = outline.split("///");

return items;
}

/**
* 文件是否存在
*
* @param filename
* @return @throws IOException
*/
public static boolean exists(String filename) {
try {
File file = new File(filename);
return file.exists();
} catch (Exception e) {
return false;
}
}

/**
* 删除文件
*
* @param filename
* @return
*/
public static boolean unlink(String filename) {
try {
File file = new File(filename);
if (file.isFile()) {
file.delete();
return true;
}
return false;
} catch (Exception e) {
return false;
}
}

/**
* 拷贝文件
*
* @param file
* @param newname
* @param overwrite
* @return
*/
public static boolean copy(File file, String newname, boolean overwrite) {
try {
if (!overwrite && new File(newname).exists()) {
return false;
}
FileInputStream input = new FileInputStream(file);
File dest = new File(newname);
if (!mkdir(dest.getParent())) {
return false;
}
FileOutputStream output = new FileOutputStream(newname);
byte[] b = new byte[1024 * 5];
int len;
while ((len = input.read(b)) != -1) {
output.write(b, 0, len);
}
output.flush();
output.close();
input.close();
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}

/**
* 创建目录
*
* @param dirname
* @return
*/
public static boolean mkdir(String dir) {
try {
File file = new File(dir);
if (!file.exists()) {
file.mkdirs();
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
}

上传ppt文件处理类：

package com.document.handle.controller;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.codec.digest.DigestUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.ModelAndView;

import com.document.servers.PPTConvertServers;
import com.document.tool.FilenameUtils;
import com.document.tool.SystemConfig;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectWriter;

@Controller
public class PptToImageController {

private static final Logger logger = LoggerFactory.getLogger(PptToImageController.class);

private static final String TYPE_BLOB = "BLOB";

private static final String CALLBACK = "callback"; // 回调函数的参数名

@Autowired
private PPTConvertServers pPTConvertServers;

@RequestMapping(value = "/convert/upload")
public ModelAndView updateFile(HttpServletRequest request, HttpServletResponse response) {
ModelAndView mav = new ModelAndView();
mav.addObject("name", "Hello Word");
mav.setViewName("/ppt/uploadFile");
logger.info("/convert/upload");
return mav;
}

/**
* 显示上传文件的页面表单。
*/
@SuppressWarnings("unchecked")
private ModelAndView showUploadForm(HttpServletRequest request, String type) {
// 所有请求参数
Map<String, String> params = new HashMap<String, String>();
Enumeration<String> paramNames = request.getParameterNames();
while (paramNames.hasMoreElements()) {
String name = paramNames.nextElement();
String value = request.getParameter(name);
if (null != value) {
params.put(name, value);
}
}

ModelAndView mav = new ModelAndView();
mav.setViewName("/upload/" + type.toLowerCase());
mav.addObject("parameters", params);
return mav;
}

/**
* 保存用户上传的文件。
* @throws UnsupportedEncodingException
*/
private Map<String, Object> saveUploadedFile(HttpServletRequest request, MultipartFile file, String type) {

// 文件内容MD5串，避免文件重复上传
String md5 = null;
try {
md5 = DigestUtils.md5Hex(file.getBytes());
logger.info("文件内容MD5串，{}", md5);
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}

String originalFilename = file.getOriginalFilename();

String extension = FilenameUtils.getExtension(originalFilename); // 文件扩展名

String filename = null;
if (md5 != null) {
filename = FilenameUtils.generateFileNameMd5(extension, md5);
} else {
filename = FilenameUtils.generateFileName(extension);
}

String filenameUrl = null; // 文件访问的URL
String absoluteFilename = null; // 文件存储的绝对路径

filenameUrl = SystemConfig.getBlobUrl() + filename;
absoluteFilename = SystemConfig.getBlobDirectory() + filename;

// 检查是否需要创建目录
File filepath = new File(absoluteFilename);
File parentFile = filepath.getParentFile();
if (!parentFile.exists()) {
parentFile.mkdirs();
}

Map<String, Object> params = new HashMap<String, Object>();
// 所有请求参数
Enumeration<String> paramNames = request.getParameterNames();
while (paramNames.hasMoreElements()) {
String name = paramNames.nextElement();
String value = request.getParameter(name);
if (null != value) {
params.put(name, value);
}
}

String pdftitle = originalFilename.substring(0, originalFilename.lastIndexOf("."));
params.put("title", pdftitle);
Map<String, Object> officeMap=new HashMap<String, Object>();
if (filepath.exists()) {
// 文件已上传过,文件进行替换
try {
officeMap = pPTConvertServers.replace_ppt(request, absoluteFilename, extension, pdftitle, filename);
params.put("totalPage", officeMap.get("totalPage"));
params.put("data", officeMap.get("json"));
params.put("status", "success");
} catch (Exception e) {
// TODO Auto-generated catch block
logger.info("把ppt文件转pdf失败，{}", e);
params.put("status", "fail");
params.put("data", "把ppt文件转pdf失败");
params.put("totalPage", 0);
e.printStackTrace();
}

return params;
}

// 保存文件
BufferedOutputStream bos = null;
try {
byte[] fileBytes = file.getBytes();
bos = new BufferedOutputStream(new FileOutputStream(filepath));
bos.write(fileBytes);
} catch (IOException e) {
logger.error("保存'" + originalFilename + "'时发生异常，Cause: ", e);
} finally {
if (null != bos) {
try {
bos.close();
} catch (IOException e) {
}
}
}

// params.put("url", filenameUrl);
// params.put("originalFilename", originalFilename);
// params.put("filesize", file.getSize());

// 把ppt文件转pdf,pdf转图片
try {
officeMap = pPTConvertServers.deal_ppt(request, absoluteFilename, extension, pdftitle, filename);
params.put("totalPage", officeMap.get("totalPage"));
params.put("data", officeMap.get("json"));
params.put("status", "success");
} catch (Exception e) {
// TODO Auto-generated catch block
logger.info("把ppt文件转pdf失败，{}", e);
params.put("status", "fail");
params.put("data", "把ppt文件转pdf失败");
params.put("totalPage", 0);
e.printStackTrace();
}

return params;
}

/**
* 处理文件上传。
* @throws IOException
*
*/
@RequestMapping(value = "/convert/upload", method = RequestMethod.POST,produces = "text/html;charset=UTF-8")
public @ResponseBody String uploadFilePost(HttpServletRequest request,
@RequestParam("file") MultipartFile file) throws IOException {

String callback = request.getParameter(CALLBACK); // 回调函数的函数名
String json = "请上传文件";
Map<String, Object> params = new HashMap<String, Object>();

ObjectMapper mapper = new ObjectMapper();
mapper.setVisibility(PropertyAccessor.FIELD, Visibility.ANY);
ObjectWriter writer = mapper.writerWithType(Map.class);

if (!file.isEmpty()) {
params = saveUploadedFile(request, file, TYPE_BLOB);
if (params == null) {
params = new HashMap<String, Object>();
json = "文件已上传过";
params.put("status", "fail");
params.put("data", json);
json = writer.writeValueAsString(params);
return json.toString();
}

try {
json = writer.writeValueAsString(params);
// json = (String) params.get("data");
} catch (Exception e) {
logger.error("转换Blob上传参数为JSON时发生异常，Cause: ", e);
}

if (StringUtils.isBlank(callback)) {
return json.toString();
} else {
return callback + "(" + json.toString() + ");";
}

}

// 还没上传文件的
params.put("status", "fail");
params.put("data", json);
json = writer.writeValueAsString(params);
return json.toString();
}

}

预览图代理输出-----处理类：

package com.document.handle.controller;

import java.io.File;
import java.io.IOException;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;

import com.document.tool.ImageMagickUtils;
import com.document.tool.SystemConfig;

@Controller
public class ImageAgentController {

private static final Logger LOG = LoggerFactory.getLogger(ImageAgentController.class);

/**
* ppt预览图片代理输出
* @throws IOException
*/
@RequestMapping("/preview/images/{year}/{month}/{md5id}/{preview}/{filename}.{ext}")
public void cropImage(@PathVariable String year, @PathVariable String month, @PathVariable String md5id,@PathVariable String preview, @PathVariable String filename, @PathVariable String ext, HttpServletRequest request, HttpServletResponse response) throws IOException {
//String rootDir = "/data05/ovp/images/";
String rootDir = SystemConfig.getBlobDirectory();
String oname = filename.substring(1,filename.length());//原图文件名
String dirString = rootDir + year+"/" +month + "/" + md5id + "/"+oname+"." + ext;
String targetFileString = rootDir + year+"/" +month + "/" + md5id + "/preview/" + filename + "." + ext;

LOG.info("corpImage..." + dirString + " -> " +targetFileString );
File newfile = new File(targetFileString);
String pathString = newfile.getParent();
LOG.info("pathString...{} {}" , pathString);
File pathFile = new File(pathString);
if(!pathFile.exists()){
LOG.info("---create file---");
pathFile.mkdirs();
}
boolean status = ImageMagickUtils.scale(dirString, targetFileString, 240, 180);
if(status){
response.reset();
response.setContentType("image/" + ext);

java.io.InputStream in = new java.io.FileInputStream(targetFileString);
//FilenameUrlUtils.getImageFilename(targetFileString);

if ( in != null )
{
byte[] b = new byte[1024];
int len;
while( (len = in.read(b)) != -1 )
{
response.getOutputStream().write(b);
}

in.close();
}
}
}

}

提取文字大纲的perl脚本：

use strict;
use warnings;
use utf8;
use open ':encoding(utf8)';
binmode(STDOUT, ":utf8");
sub trim($)
{
my $string = shift;
$string =~ s/^\s+//;
$string =~ s/\s+$//;
return $string;
}
if(!$ARGV[0]){
die;
}
open my $fh, "pdftotext -layout -enc UTF-8 $ARGV[0] - |" or die $!;
my $firstline=<$fh>;
print trim($firstline);
my $pageNum = 1;

while ( my $line = <$fh> ) {
if ( $line =~ /\xC/ ) {
my $count = ($line =~ tr/\xC//);
for(my $i=0;$i<$count-1;$i++){
print "///".$pageNum;
$pageNum++;
}
if(trim($line)){
print "///".trim($line);
}
$pageNum++;
}

}

close $fh;

可能遇到的问题：

1、ppt转pdf时,遇到启动失败（不清楚是不是再次启动引起的）

2、转换后的pdf 表格里的中文会出现乱码

3、有时会出现关闭服务器的所用服务（尚不清楚什么原因引起的）

4、处理请求时，经常出现超时504