【JAVA】iTEXT將html文檔轉PDF，spire.doc包html轉word（包括樣式修改和添加圖片/頁碼等設置）
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項目需求使用velocity模板生成html內(nèi)容，將含有標題 / 段落 / 表格 / 圖片 的html文件轉化成PDF和word格式，并保留良好樣式。 iText起初只想實現(xiàn)word功能，但經(jīng)過嘗試和查詢一些例如poi等工具，都無法較好的保留原有的復雜樣式，后更換pdf需求進行嘗試，itext生成pdf已經(jīng)非常完美了。 spire.pdf / spire.doc / spire.office很好的第三方工具，能完美實現(xiàn)html轉pdf和word等格式文件，最關鍵的是有free版本，雖然有10頁的限制，結合需求頁可能夠用和付費版功能上無差別。 spire.pdf / spire.doc 冰藍科技 中文文檔 html轉pdf引入jar包引入itext倉庫<repository> <id>itext</id> <name>iText Repository - releases</name> <url>https://repo.itextsupport.com/releases</url> </repository> 在pom.xml引入maven（不包括spire.pdf）<!-- itextpdf --> <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>com.itextpdf</groupId> <artifactId>itext-asian</artifactId> <version>5.2.0</version> </dependency> <dependency> <groupId>com.itextpdf</groupId> <artifactId>itextpdf</artifactId> <version>5.5.10</version> </dependency> <!-- pdfHTML --> <dependency> <groupId>com.itextpdf</groupId> <artifactId>itext7-core</artifactId> <version>7.1.0</version> <type>pom</type> <exclusions><exclusion> <artifactId>slf4j-api</artifactId> <groupId>org.slf4j</groupId> </exclusion> </exclusions> </dependency> <dependency> <groupId>com.itextpdf</groupId> <artifactId>html2pdf</artifactId> <version>2.0.0</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-io</artifactId> <version>1.3.2</version> </dependency> <dependency> <groupId>org.xhtmlrenderer</groupId> <artifactId>flying-saucer-pdf</artifactId> <version>9.0.8</version> </dependency> </dependencies> 可以下載spire.pdf.free以及各種實用jar包的maven倉庫maven倉庫（內(nèi)含spire.pdf.free和spire.doc.free） 生成pdfpackage com.sy.util;import com.itextpdf.html2pdf.ConverterProperties;
import com.itextpdf.html2pdf.HtmlConverter;
import com.itextpdf.html2pdf.attach.impl.DefaultTagWorkerFactory;
import com.itextpdf.html2pdf.css.media.MediaDeviceDescription;
import com.itextpdf.html2pdf.css.media.MediaType;
import com.itextpdf.kernel.pdf.*;
import com.itextpdf.layout.font.FontProvider;
import org.apache.commons.io.FileUtils;
import org.apache.poi.util.IOUtils;
import java.io.*;
import static com.itextpdf.kernel.geom.PageSize.A4;
import static com.itextpdf.kernel.geom.PageSize.A3;public class PdfService {
//private static final Logger LOGGER = LoggerFactory.getLogger(PdffromHTML.class);
public static final String FONT_NAME = "simsun.ttf";
public void copyFont(String targetDir,String fontPath) {
FileOutputStream fout = null;
FileInputStream fileInputStream = null;
try {
//InputStream inputStream = this.getClass().getClassLoader().getResourceAsStream(FONT_CLASS_PATH);
fileInputStream = new FileInputStream(fontPath+"/WEB-INF/fonts/simsun.ttf");
File dir = new File(targetDir);FileUtils.forceMkdir(dir);fout = new FileOutputStream(targetDir + "simsun.ttf");
if (fileInputStream != null && fout != null) {
org.apache.commons.io.IOUtils.copy(fileInputStream, fout);
}
}
catch (Exception e)
{
//LOGGER.error("failed to copy font: ", e);
e.printStackTrace();
}
finally
{
if(null!=fileInputStream){
try {fileInputStream.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
if(null!=fout){
try
{
fout.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
}
public void createPdffromHtml(String pdfFileName, InputStream htmlInputStream, String resourcePrefix)
{
PdfDocument pdfDoc = null;
FileOutputStream outputStream = null;
PdfWriter pdfWriter = null;
try {
outputStream = new FileOutputStream(resourcePrefix + pdfFileName);
WriterProperties writerProperties = new WriterProperties();
writerProperties.addXmpMetadata();
pdfWriter = new PdfWriter(outputStream, writerProperties);
pdfDoc = createPdfDoc(pdfWriter);
PdfDocument pdfDocument = new PdfDocument(pdfWriter);
pdfDocument.setDefaultPageSize(A3);
//轉換器
ConverterProperties props = createConverterProperties(resourcePrefix);
props.setBaseUri(resourcePrefix);
//設置媒體的描述方式
MediaDeviceDescription mediaDeviceDescription = new MediaDeviceDescription(MediaType.SCREEN);
props.setMediaDeviceDescription(mediaDeviceDescription);
HtmlConverter.convertToPdf(htmlInputStream,pdfDocument, props);
pdfDocument.close();
}
catch (Exception e)
{
//LOGGER.error("failed to create pdf from html exception: ", e);
e.printStackTrace();
}
finally
{
try
{
outputStream.close();
pdfWriter.close();
}
catch (IOException e)
{
e.printStackTrace();
}
finally
{
outputStream = null;
pdfWriter = null;
}
IOUtils.closeQuietly(pdfDoc);
}
}
private PdfDocument createPdfDoc(PdfWriter pdfWriter)
{
PdfDocument pdfDoc;
pdfDoc = new PdfDocument(pdfWriter);
pdfDoc.getCatalog().setLang(new PdfString("zh-CN"));
pdfDoc.setTagged();
pdfDoc.getCatalog().setViewerPreferences(new PdfViewerPreferences().setDisplayDocTitle(true));
return pdfDoc;
}
private ConverterProperties createConverterProperties(String resourcePrefix)
{
ConverterProperties props = new ConverterProperties();
props.setFontProvider(createFontProvider(resourcePrefix));
props.setBaseUri(resourcePrefix);
props.setCharset("UTF-8");
DefaultTagWorkerFactory tagWorkerFactory = new DefaultTagWorkerFactory();
props.setTagWorkerFactory(tagWorkerFactory);
return props;
}
private FontProvider createFontProvider(String resourcePrefix)
{
FontProvider fp = new FontProvider();
fp.addStandardPdfFonts();
fp.addDirectory(resourcePrefix);return fp;
}
}下面為main方法 //pdf文件加載和生成統(tǒng)一路徑String pdfPath = localFilePath + name + ".pdf";File temFile = new File(localFilePath);if (!temFile.exists()) {temFile.mkdirs();}// 添加字體,這一步很關鍵，否則中文會顯示不出來PdfService pdfService = new PdfService();File file = new File(localFilePath + PdfService.FONT_NAME);if (!file.exists()) {//加載字體庫pdfService.copyFont(localFilePath,realPath);}//---------------------FileInputStream inputStream = new FileInputStream(url);File pdfFile = new File(pdfPath);//TODO html To PDFpdfService.createPdffromHtml(pdfFile.getName(), inputStream, localFilePath);pdf布局設置（以下內(nèi)容通過spire.doc/pdf包處理）package com.sy.util;import com.spire.doc.FileFormat;
import com.spire.doc.documents.*;
import com.spire.doc.fields.DocPicture;
import com.spire.doc.fields.TextRange;
import com.spire.pdf.*;
import com.spire.doc.*;
import com.spire.pdf.annotations.PdfRubberStampAnnotation;
import com.spire.pdf.annotations.appearance.PdfAppearance;
import com.spire.pdf.automaticfields.PdfCompositeField;
import com.spire.pdf.automaticfields.PdfPageCountField;
import com.spire.pdf.automaticfields.PdfPageNumberField;
import com.spire.pdf.graphics.*;
import java.awt.*;
import java.awt.geom.Dimension2D;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import com.spire.doc.FileFormat.*;public class PdfPageSetting
{
public static final int FLAG = 2;
public void pdfPageSetting(String url,int flag)
{
//創(chuàng)建PdfDocument對象
PdfDocument originalDoc = new PdfDocument();
//加載PDF文件
originalDoc.loadfromFile(url);
//第一頁插入空白頁（目的是刪除spirefree的內(nèi)置紅色警告語，主要是為了生成word使用，pdf可以用添加圖片方法進行遮蓋）
originalDoc.getPages().insert(0);
//創(chuàng)建一個新的PdfDocument實例
PdfDocument newDoc = new PdfDocument();
//遍歷所有PDF 頁面
Dimension2D dimension2D = new Dimension();
for (int i = 0; i < originalDoc.getPages().getCount(); i++)
{
PdfPageBase page = originalDoc.getPages().get(i);
if (flag==1)
{
//設置新文檔頁面寬、高為原來的1倍
float scale = 1.0f;
float width = (float) page.getSize().getWidth() * scale;
float height = (float) page.getSize().getHeight() * scale;
dimension2D.setSize(width, height);
//設置新文檔第一頁的頁邊距為左右
PdfMargins margins = new PdfMargins(0, 20);
PdfPageBase newPage = newDoc.getPages().add(dimension2D, margins);
//復制原文檔的內(nèi)容到新文檔
newPage.getCanvas().drawTemplate(page.createTemplate(), new Point2D.Float());
}
if (flag==2)
{
//設置新文檔頁邊距為左右0、上下20(不能隨意更改，會影響主標題位置)
PdfMargins margins = new PdfMargins(0,20,0,0);
//設置新文檔頁面大小為A3
PdfPageBase newPage = newDoc.getPages().add(PdfPageSize.A3, margins);
//調(diào)整畫布，設置內(nèi)容也根據(jù)頁面的大小進行縮放
double wScale = (PdfPageSize.A3.getWidth() - 10) / PdfPageSize.A3.getWidth();
double hScale = (PdfPageSize.A3.getHeight() - 10) / PdfPageSize.A3.getHeight();
newPage.getCanvas().translateTransform(wScale, hScale);
//復制原文檔的內(nèi)容到新文檔
newPage.getCanvas().drawTemplate(page.createTemplate(), new Point2D.Float());
}
if (flag==3)
{
//設置新文檔頁邊距
PdfMargins margins = new PdfMargins(0, 0);
//設置新文檔頁面大小為A3, 頁面旋轉角度為0，紙張方向為水平
PdfPageBase newPage = newDoc.getPages().add(PdfPageSize.A4, margins, PdfPageRotateAngle.Rotate_Angle_0, PdfPageOrientation.Landscape);
//調(diào)整畫布，設置內(nèi)容也根據(jù)頁面的大小進行縮放
double wScale = PdfPageSize.A4.getHeight() / page.getSize().getWidth();
double hScale = PdfPageSize.A4.getWidth() / page.getSize().getHeight();
newPage.getCanvas().translateTransform(wScale, hScale);
//復制原文檔的內(nèi)容到新文檔
newPage.getCanvas().drawTemplate(page.createTemplate(), new Point2D.Float());
}
}
//保存
PDFnewDoc.saveToFile(url);
newDoc.close();
originalDoc.close();
}pdf添加頁碼 /*** 添加頁碼* @param targetPath*/public void addPageNum(String targetPath) {//加載PDF文檔PdfDocument doc = new PdfDocument();doc.loadfromFile(targetPath);//刪除第一頁空白頁doc.getPages().removeAt(0);//創(chuàng)建字體PdfTrueTypeFont font = new PdfTrueTypeFont(new Font("Default", Font.PLAIN, 10),true);//獲取頁面尺寸Dimension2D pageSize = doc.getPages().get(0).getSize();//初始化y坐標float y = (float) pageSize.getHeight() - 20;//遍歷文檔中的頁for (int i = 0; i < doc.getPages().getCount(); i++) {//初始化頁碼域PdfPageNumberField number = new PdfPageNumberField();//初始化總頁數(shù)域//PdfPageCountField count = new PdfPageCountField();//創(chuàng)建復合域PdfCompositeField compositeField = new PdfCompositeField(font, PdfBrushes.getBlack(),"{0}", number);//設置復合域內(nèi)文字對齊方式compositeField.setStringFormat(new PdfStringFormat(PdfTextAlignment.Right, PdfVerticalAlignment.Top));//測量文字大小Dimension2D textSize = font.measureString(compositeField.getText());//設置復合域的在PDF頁面上的位置及大小compositeField.setBounds(new Rectangle2D.Float(((float) pageSize.getWidth() - (float) textSize.getWidth())/2, y, (float) textSize.getWidth(), (float) textSize.getHeight()));//將復合域添加到PDF頁面compositeField.draw(doc.getPages().get(i).getCanvas());}//保存為另外一個文檔doc.saveToFile(targetPath);doc.close();}pdf添加圖片 /*** 添加圖片到PDF* @param url pdf文件* @param baseUrl 項目路徑* @param savePath 文件保存路徑*/public static void addImgToPdf(String url,String baseUrl) {//創(chuàng)建PdfDocument對象PdfDocument doc = new PdfDocument();//加載PDF文檔doc.loadfromFile(url);//刪除第一頁空白頁//doc.getPages().removeAt(0);for (int i = 0; i < doc.getPages().getCount(); i++) {//獲取第i頁PdfPageBase page = doc.getPages().get(i);//加載圖片到PdfImage對象PdfImage image = PdfImage.fromFile(baseUrl + "img\\custom\\pdf.png");//獲取圖片高寬int width = image.getWidth();int height = image.getHeight();//創(chuàng)建PdfTemplate對象，大小跟圖片一致PdfTemplate template = new PdfTemplate(width, height);//在模板上繪制圖片template.getGraphics().drawImage(image, 0, 0, width, height);//創(chuàng)建PdfRubebrStampAnnotation對象，指定大小和位置Rectangle2D rect = new Rectangle2D.Float((float)(0), (float)(0), 835, 50);PdfRubberStampAnnotation stamp = new PdfRubberStampAnnotation(rect);//創(chuàng)建PdfAppearance對象PdfAppearance pdfAppearance = new PdfAppearance(stamp);//將模板應用為PdfAppearance的一般狀態(tài)pdfAppearance.setNormal(template);//將PdfAppearance 應用為圖章的樣式stamp.setAppearance(pdfAppearance);//添加圖章到PDFpage.getAnnotationsWidget().add(stamp);}//保存文檔doc.saveToFile(url);doc.close();}pdf轉word（windows/linux和tomcat下測試可用）//創(chuàng)建PdfDocument對象PdfDocument doc = new PdfDocument();//加載PDF文檔doc.loadfromFile(url);//保存文檔doc.saveToFile(url); html轉word//TODO html To DOCXDocument word = new Document();//html文件地址word.loadfromFile(url);word.saveToFile(wordPath, FileFormat.Docx);word.close();//TODO 添加頁眉和頁腳，設置word頁邊距(realPath為頁眉圖片地址)setUpPageOfWord(wordPath,realPath)； word添加頁眉頁腳和頁碼 /*** word添加頁眉* @param url* @param baseUrl* @param*/public static void setUpPageOfWord(String url,String baseUrl) {//創(chuàng)建Document對象Document doc = new Document();doc.loadfromFile(url);//獲取第一頁Section section = doc.getSections().get(0);Dimension2D dimension2D = new Dimension();dimension2D.setSize(800,1200);section.getPageSetup().setPageSize(dimension2D);//設置頁邊距section.getPageSetup().getMargins().setTop(40f);section.getPageSetup().getMargins().setBottom(40f);section.getPageSetup().getMargins().setLeft(60f);section.getPageSetup().getMargins().setRight(60f);//調(diào)用insertHeaderAndFooter方法插入頁眉頁腳到第一個sectioninsertHeaderAndFooter(section,baseUrl);//保存doc.saveToFile(url);doc.close();}private static void insertHeaderAndFooter(Section section,String baseUrl) {//分別獲取section的頁眉頁腳HeaderFooter header = section.getHeadersFooters().getHeader();HeaderFooter footer = section.getHeadersFooters().getFooter();//添加段落到頁眉Paragraph headerParagraph = header.addParagraph();//插入圖片到頁眉的段落DocPicture headerPicture = headerParagraph.appendPicture(baseUrl + "img/custom/word.png");headerPicture.setHorizontalAlignment(ShapeHorizontalAlignment.Left);headerPicture.setVerticalOrigin(VerticalOrigin.Top_Margin_Area);headerPicture.setVerticalAlignment(ShapeVerticalAlignment.Bottom);//添加文字到頁眉的段落TextRange text = headerParagraph.appendText("上海煙草集團");//text.getCharacterFormat().setFontName("default");text.getCharacterFormat().setFontSize(10);text.getCharacterFormat().setItalic(true);headerParagraph.getFormat().setHorizontalAlignment(HorizontalAlignment.Right);//設置文字環(huán)繞方式headerPicture.setTextWrappingStyle(TextWrappingStyle.Behind);//設置頁眉段落的底部邊線樣式headerParagraph.getFormat().getBorders().getBottom().setBorderType(BorderStyle.Single);headerParagraph.getFormat().getBorders().getBottom().setLineWidth(1f);//添加段落到頁腳Paragraph footerParagraph = footer.addParagraph();//添加Field_Page和Field_Num_Pages域到頁腳段落，用于顯示當前頁碼和總頁數(shù)footerParagraph.appendField("page number", FieldType.Field_Page);footerParagraph.appendText(" of ");footerParagraph.appendField("number of pages", FieldType.Field_Num_Pages);footerParagraph.getFormat().setHorizontalAlignment(HorizontalAlignment.Right);//設置頁腳段落的頂部邊線樣式footerParagraph.getFormat().getBorders().getTop().setBorderType(BorderStyle.Single);footerParagraph.getFormat().getBorders().getTop().setLineWidth(1f);}highcharts轉svg插入html模板 /**將highcharts生成<img>的src標簽插入html中方便pdf轉化**/function img() {$(".highchartImg").css("display","none");$.each($(".highchartImg"),function (idx,c) {var charData = $(this).highcharts().getSVG();var canvas = document.getElementById("canvas");canvg(canvas,charData);var image = new Image();image.src = canvas.toDataURL("image/png");$(this).next().attr("src",image.src);})}設置highcharts原始和導出圖片大小 chart: {zoomType: 'xy', //圖片可拉伸type: 'column',width: 1200}，exporting: {sourceWidth: 650,sourceHeight: 360,enabled: false, //屏蔽下載圖片選擇框}總結：html的元素標簽一定要注意規(guī)范性，否則樣式會有偏差，不過慢慢調(diào)試也能弄出來，比如一些表頭的格式偏差，rowspan=“0” 這種就不要顯示在標簽里了，默認就好。 該文章在 2023/5/15 12:22:22 編輯過 |
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