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引言:
最近公司在做一个教育培训学习及在线考试的项目,本人主要从事网络课程模块,主要做课程分类,课程,课件的创建及在线学习和统计的功能,因为课件涉及到多种类型,像视频,音频,图文,外部链接及文档类型.其中就涉及到一个问题,就是文档型课件课程在网页上的展示和学习问题,因为要在线统计学习的课程,学习的人员,学习的时长,所以不能像传统做法将文档下载到本地学习,那样就不受系统控制了,所以最终的方案是,在上传文档型课件的时候,将其文件对应的转换成html文件,以便在网页上能够浏览学习
下边主要针对word,pdf和txt文本文件进行转换
一:java实现将word转换为html
1:引入依赖
1 <dependency> 2 <groupid>fr.opensagres.xdocreport</groupid> 3 <artifactid>fr.opensagres.xdocreport.document</artifactid> 4 <version>1.0.5</version> 5 </dependency> 6 <dependency> 7 <groupid>fr.opensagres.xdocreport</groupid> 8 <artifactid>org.apache.poi.xwpf.converter.xhtml</artifactid> 9 <version>1.0.5</version> 10 </dependency> 11 <dependency> 12 <groupid>org.apache.poi</groupid> 13 <artifactid>poi</artifactid> 14 <version>3.12</version> 15 </dependency> 16 <dependency> 17 <groupid>org.apache.poi</groupid> 18 <artifactid>poi-scratchpad</artifactid> 19 <version>3.12</version> 20 </dependency>
2:代码demo
我要评论 1 package com.svse.controller;
2
3 import javax.xml.parsers.documentbuilderfactory;
4 import javax.xml.parsers.parserconfigurationexception;
5 import javax.xml.transform.outputkeys;
6 import javax.xml.transform.transformer;
7 import javax.xml.transform.transformerexception;
8 import javax.xml.transform.transformerfactory;
9 import javax.xml.transform.dom.domsource;
10 import javax.xml.transform.stream.streamresult;
11
12 import org.apache.poi.hwpf.hwpfdocument;
13 import org.apache.poi.hwpf.converter.picturesmanager;
14 import org.apache.poi.hwpf.converter.wordtohtmlconverter;
15 import org.apache.poi.hwpf.usermodel.picturetype;
16 import org.apache.poi.xwpf.converter.core.basicuriresolver;
17 import org.apache.poi.xwpf.converter.core.fileimageextractor;
18 import org.apache.poi.xwpf.converter.core.fileuriresolver;
19 import org.apache.poi.xwpf.converter.core.iuriresolver;
20 import org.apache.poi.xwpf.converter.core.ixwpfconverter;
21 import org.apache.poi.xwpf.converter.xhtml.xhtmlconverter;
22 import org.apache.poi.xwpf.converter.xhtml.xhtmloptions;
23 import org.apache.poi.xwpf.usermodel.xwpfdocument;
24 /**
25 * word 转换成html
26 */
27 public class testwordtohtml {
28
29 public static final string storagepath="c://works//files//";
30 public static final string ip="192.168.30.222";
31 public static final string port="8010";
32 public static void main(string[] args) throws ioexception, transformerexception, parserconfigurationexception {
33 testwordtohtml wt=new testwordtohtml();
34 //wt.word2003tohtml("甲骨文考证.doc");
35 wt.word2007tohtml("甲骨文考证.docx");
36
37 }
38
39 /**
40 * 2003版本word转换成html
41 * @throws ioexception
42 * @throws transformerexception
43 * @throws parserconfigurationexception
44 */
45 public void word2003tohtml(string filename) throws ioexception, transformerexception, parserconfigurationexception {
46
47 final string imagepath = storagepath+"fileimage/";//解析时候如果doc文件中有图片 图片会保存在此路径
48 final string strranstring=getrandomnum();
49 string filepath =storagepath;
50 string htmlname =filename.substring(0, filename.indexof("."))+ "2003.html";
51 final string file = filepath + filename;
52 inputstream input = new fileinputstream(new file(file));
53 hwpfdocument worddocument = new hwpfdocument(input);
54 wordtohtmlconverter wordtohtmlconverter = new wordtohtmlconverter(documentbuilderfactory.newinstance().newdocumentbuilder().newdocument());
55 //设置图片存放的位置
56 wordtohtmlconverter.setpicturesmanager(new picturesmanager() {
57 public string savepicture(byte[] content, picturetype picturetype, string suggestedname, float widthinches, float heightinches) {
58 file imgpath = new file(imagepath);
59 if(!imgpath.exists()){//图片目录不存在则创建
60 imgpath.mkdirs();
61 }
62
63 file file = new file(imagepath +strranstring+suggestedname);
64 try {
65 outputstream os = new fileoutputstream(file);
66 os.write(content);
67 os.close();
68 } catch (filenotfoundexception e) {
69 e.printstacktrace();
70 } catch (ioexception e) {
71 e.printstacktrace();
72 }
73
74 return "http://"+ip+":"+port+"//uploadfile/fileimage/"+strranstring+suggestedname;
75 // return imagepath +strranstring+suggestedname;
76 }
77 });
78
79 //解析word文档
80 wordtohtmlconverter.processdocument(worddocument);
81 document htmldocument = wordtohtmlconverter.getdocument();
82
83 file htmlfile = new file(filepath +strranstring+htmlname);
84 outputstream outstream = new fileoutputstream(htmlfile);
85
86
87 domsource domsource = new domsource(htmldocument);
88 streamresult streamresult = new streamresult(outstream);
89
90 transformerfactory factory = transformerfactory.newinstance();
91 transformer serializer = factory.newtransformer();
92 serializer.setoutputproperty(outputkeys.encoding, "utf-8");
93 serializer.setoutputproperty(outputkeys.indent, "yes");
94 serializer.setoutputproperty(outputkeys.method, "html");
95
96 serializer.transform(domsource, streamresult);
97 outstream.close();
98
99 system.out.println("生成html文件路径:"+ "http://"+ip+":"+port+"//uploadfile/"+strranstring+htmlname);
100 }
101
102 /**
103 * 2007版本word转换成html
104 * @throws ioexception
105 */
106 public void word2007tohtml(string filename) throws ioexception {
107
108 final string strranstring=getrandomnum();
109
110 string filepath = storagepath+strranstring;
111 string htmlname =filename.substring(0, filename.indexof("."))+ "2007.html";
112 file f = new file(storagepath+filename);
113 if (!f.exists()) {
114 system.out.println("sorry file does not exists!");
115 } else {
116 if (f.getname().endswith(".docx") || f.getname().endswith(".docx")) {
117 try {
118 // 1) 加载word文档生成 xwpfdocument对象
119 inputstream in = new fileinputstream(f);
120 xwpfdocument document = new xwpfdocument(in);
121
122 // 2) 解析 xhtml配置 (这里设置iuriresolver来设置图片存放的目录)
123 file imagefolderfile = new file(filepath);
124 xhtmloptions options = xhtmloptions.create().uriresolver(new fileuriresolver(imagefolderfile));
125 options.setextractor(new fileimageextractor(imagefolderfile));
126 options.uriresolver(new iuriresolver() {
127 public string resolve(string uri) {
128 //http://192.168.30.222:8010//uploadfile/....
129 return "http://"+ip+":"+port+"//uploadfile/"+strranstring +"/"+ uri;
130 }
131 });
132
133 options.setignorestylesifunused(false);
134 options.setfragment(true);
135
136 // 3) 将 xwpfdocument转换成xhtml
137 outputstream out = new fileoutputstream(new file(filepath + htmlname));
138 ixwpfconverter<xhtmloptions> converter = xhtmlconverter.getinstance();
139 converter.convert(document,out, options);
140 //xhtmlconverter.getinstance().convert(document, out, options);
141 system.out.println("html路径:"+"http://"+ip+":"+port+"//uploadfile/"+strranstring+htmlname);
142 } catch (exception e) {
143 e.printstacktrace();
144 }
145
146 } else {
147 system.out.println("enter only ms office 2007+ files");
148 }
149 }
150 }
151
152 /**
153 *功能说明:生成时间戳
154 *创建人:zsq
155 *创建时间:2019年12月7日 下午2:37:09
156 *
157 */
158 public static string getrandomnum(){
159 date dt = new date();
160 simpledateformat sdf = new simpledateformat("yyyymmddhhmmss");
161 string str=sdf.format(dt);
162 return str;
163 }
164
165 }
二:java实现将pdf转换为html
1: 引入依赖
1 <dependency> 2 <groupid>net.sf.cssbox</groupid> 3 <artifactid>pdf2dom</artifactid> 4 <version>1.7</version> 5 </dependency> 6 <dependency> 7 <groupid>org.apache.pdfbox</groupid> 8 <artifactid>pdfbox</artifactid> 9 <version>2.0.12</version> 10 </dependency> 11 <dependency> 12 <groupid>org.apache.pdfbox</groupid> 13 <artifactid>pdfbox-tools</artifactid> 14 <version>2.0.12</version> 15 </dependency> 16
2:代码demo
1 public class pdftohtml {
2
3 /*
4 pdf转换html
5 */
6 public void pdftohtmltest(string inpdfpath,string outputhtmlpath) {
7 // string outputpath = "c:\\works\\files\\zsq保密知识测试题库.html";
8 9 //try() 写在()里面会自动关闭流
10 try{
11 bufferedwriter out = new bufferedwriter(new outputstreamwriter(new fileoutputstream(new file(outputhtmlpath)),"utf-8"));
12 //加载pdf文档
13 //pddocument document = pddocument.load(bytes);
14 pddocument document = pddocument.load(new file(inpdfpath));
15 pdfdomtree pdfdomtree = new pdfdomtree();
16 pdfdomtree.writetext(document,out);
17 } catch (exception e) {
18 e.printstacktrace();
19 }
20 }
21
22 public static void main(string[] args) throws ioexception {
23 pdftohtml ph=new pdftohtml();
24 string pdfpath="c:\\works\\files\\武研中心行政考勤制度.pdf";
25 string outputpath="c:\\works\\files\\武研中心行政考勤制度.html";
26 ph.pdftohtmltest(pdfpath,outputpath);
27 }
28
29 }
三:java实现将txt转换为html
1 /*
2 * txt文档转html
3 filepath:txt原文件路径
4 htmlposition:转化后生成的html路径
5 */
6 public static void txttohtml(string filepath, string htmlposition) {
7 try {
8 //string encoding = "gbk";
9 file file = new file(filepath);
10 if (file.isfile() && file.exists()) { // 判断文件是否存在
11 inputstreamreader read = new inputstreamreader(new fileinputstream(file), "gbk");
12 // 考虑到编码格式
13 bufferedreader bufferedreader = new bufferedreader(read);
14 // 写文件
15 fileoutputstream fos = new fileoutputstream(new file(htmlposition));
16 outputstreamwriter osw = new outputstreamwriter(fos, "gbk");
17 bufferedwriter bw = new bufferedwriter(osw);
18 string linetxt = null;
19 while ((linetxt = bufferedreader.readline()) != null) {
20 bw.write("   "+linetxt + "</br>");
21 }
22 bw.close();
23 osw.close();
24 fos.close();
25 read.close();
26 } else {
27 system.out.println("找不到指定的文件");
28 }
29 } catch (exception e) {
30 system.out.println("读取文件内容出错");
31 e.printstacktrace();
32 }
33 }
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