Itext实现将Html代码转换为Doc

小鱼儿 2022-06-01 04:13 575阅读 0赞

最近一个项目中需要将页面的一些字段生成doc文档，而页面中部分字段是使用kindeeditor编辑器编辑的，存到数据库中是html代码，如：

<p class="20" style="text-indent:28.0000pt;">
        公司成立了项目部负责本项目的设计工作。项目部主要人员组成如下。
    </p>

就需要在导出doc的同时，把html转换成word中可以正常显示的内容。场景就是这样，废话就不多说了，直接上代码。

package com.spb.SpringBootDemo.rest;
    
    import java.awt.Color;
    import java.io.FileInputStream;
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream; 
    import java.io.IOException; 
    import java.io.InputStream; 
    import java.io.OutputStream; 
    
    import java.io.StringReader;
    import java.util.List;
    
    import org.apache.poi.poifs.filesystem.DirectoryEntry; 
    import org.apache.poi.poifs.filesystem.POIFSFileSystem; 
    
    import com.lowagie.text.Cell;
    import com.lowagie.text.Document;
    import com.lowagie.text.DocumentException;
    import com.lowagie.text.Font;
    import com.lowagie.text.PageSize;
    import com.lowagie.text.Paragraph;
    import com.lowagie.text.Table;
    import com.lowagie.text.html.simpleparser.HTMLWorker;
    import com.lowagie.text.html.simpleparser.StyleSheet;
    import com.lowagie.text.pdf.BaseFont;
    import com.lowagie.text.rtf.RtfWriter2;
    
    /** * HTML 转换 Word * @author Lsd 2018-01-19 * */  
    public class HTML2Word {  
        public static void main(String[] args) throws Exception { 
    
            String filepath = "C:/test/";
            //创建 POIFSFileSystem 对象  
            POIFSFileSystem poifs = new POIFSFileSystem(); 
            //获取DirectoryEntry  
            DirectoryEntry directory = poifs.getRoot(); 
            //创建输出流  
            OutputStream out = new FileOutputStream(filepath+"2003.doc"); 
            try {  
                //创建文档,1.格式,2.HTML文件输入流  
                InputStream is = new FileInputStream(filepath+"2003.html");
                directory.createDocument("WordDocument",is ); 
                //写入  
                poifs.writeFilesystem(out); 
                //释放资源  
                out.close(); 
                System.out.println("success"); 
                String htmlContent = "<table><tr><td colspan='2'>1222</td></tr><tr><td>First</td> <td>Row</td></tr>"
                        + "<tr><td>Second你好</td><td>Row</td></tr></table>"; 
                insertHtml2Doc(htmlContent);
            } catch (IOException e) {  
                e.printStackTrace(); 
            }    
        }  
    
        /** * 获取 class path 中的文件流 * @param name 名称 * @return InputStream */  
        public static InputStream getInputStream(String name){  
            return Thread.currentThread().getContextClassLoader().getResourceAsStream(name); 
        }  
        /** * 将html直接追加到doc文件中 * @param htmlContent * @throws IOException * @throws DocumentException */
        public static void insertHtml2Doc(String htmlContent) throws IOException, DocumentException{
    //      设置中文字体  
    
            OutputStream out = new FileOutputStream("c:/test/a.doc"); 
            Document document = new Document(PageSize.A4); 
            RtfWriter2.getInstance(document, out); 
            document.open(); 
            Paragraph context = new Paragraph(); 
            //String htmlContent = "<img src='http://localhost:8081/project/Image/a.jpg'/>"; 
            StyleSheet ss = new StyleSheet(); 
            ss.loadTagStyle("table", "border", "1000");
            List htmlList = com.lowagie.text.html.simpleparser.HTMLWorker.parseToList(new StringReader(htmlContent), ss); 
            for (int i = 0 ; i < htmlList.size(); i++)
            {  
                com.lowagie.text.Element e = (com.lowagie.text.Element) htmlList.get(i); 
    
                context.add(e); 
            }  
            Font font = new Font(Font.NORMAL, 16, Font.NORMAL, new Color(0, 0, 0));
            context.setFont(font);
    
            document.add(context);
            document.close(); 
            System.out.println("ok"); 
        }
        /** * 将html代码table的单元格中，对于表格加入单元格中样式有问题，待解决 * @param htmlContent * @return * @throws IOException * @throws DocumentException */
        public  Paragraph insertHtml2Cell(String htmlContent) throws IOException, DocumentException{
    
            Paragraph context = new Paragraph(); 
            StyleSheet ss = new StyleSheet(); 
    
            List htmlList = com.lowagie.text.html.simpleparser.HTMLWorker.parseToList(new StringReader(htmlContent), ss); 
            for (int i = 0 ; i < htmlList.size(); i++)
            {  
                com.lowagie.text.Element e = (com.lowagie.text.Element) htmlList.get(i); 
                context.add(e); 
            }  
    
             return context;
        }
    
    }

Maven依赖配置

<dependency>
            <groupId>fr.opensagres.xdocreport</groupId>
            <artifactId>fr.opensagres.xdocreport.document</artifactId>
            <version>1.0.5</version>
        </dependency>
        <dependency>  
            <groupId>fr.opensagres.xdocreport</groupId>  
            <artifactId>org.apache.poi.xwpf.converter.xhtml</artifactId>  
            <version>1.0.5</version>  
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi</artifactId>
            <version>3.12</version>
        </dependency>
        <dependency>
        <groupId>com.lowagie</groupId>
        <artifactId>itext</artifactId>
        <version>2.1.7</version>
        </dependency>
        <dependency>
        <groupId>com.lowagie</groupId>
        <artifactId>itext-rtf</artifactId>
        <version>2.1.7</version>
    </dependency>
    
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-scratchpad</artifactId>
            <version>3.12</version>
        </dependency>

以上是实现导出导出的demo,具体项目中，将insertHtml2Doc和insertHtml2Cell方法修改后放到相关的Util中即可。

源码：[http://download.csdn.net/download/u012343297/10214329][http_download.csdn.net_download_u012343297_10214329]

[http_download.csdn.net_download_u012343297_10214329]: http://download.csdn.net/download/u012343297/10214329