使用docx4j在线word转换pdf及替换文本域

docx4j优势：
免费开源可商用，服务器无需安装office软件等
docx4j劣势：
性能效率相对于其他框架而言较差
复杂的word排版内容可能无法转换，对格式要求较高
适用场景：
对性能效率要求不高，word内容排版简单，后续无很强的应用需求

编码实现

项目框架环境：JDK1.8、SpringBoot2.3.1.RELEASE

maven

<docx4j.version>8.2.9</docx4j.version>
<dependency><groupId>org.docx4j</groupId><artifactId>docx4j-JAXB-Internal</artifactId><version>${docx4j.version}</version>
</dependency>
<dependency><groupId>org.docx4j</groupId><artifactId>docx4j-export-fo</artifactId><version>${docx4j.version}</version>
</dependency>

在word中插入${xxx}，即可替换xxx内容
对应传递的map的key-val：xxx:替换内容
注：${ } 符号不可省略


import lombok.extern.slf4j.Slf4j;
import org.docx4j.Docx4J;
import org.docx4j.XmlUtils;
import org.docx4j.convert.out.FOSettings;
import org.docx4j.fonts.IdentityPlusMapper;
import org.docx4j.fonts.Mapper;
import org.docx4j.fonts.PhysicalFonts;
import org.docx4j.jaxb.Context;
import org.docx4j.openpackaging.packages.WordprocessingMLPackage;
import org.docx4j.openpackaging.parts.WordprocessingML.MainDocumentPart;
import org.docx4j.wml.Document;
import org.springframework.util.CollectionUtils;import javax.servlet.http.HttpServletResponse;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URLEncoder;
import java.util.Map;
import java.util.regex.Pattern;@Slf4j
public final class Docx4jUtils {/*** 替换变量并输出word文档* @param inputStream* @param map* @param outputStream*/public static void replaceDocUseDoc4j(InputStream inputStream, Map<String, String> map, OutputStream outputStream) {try {WordprocessingMLPackage doc = WordprocessingMLPackage.load(inputStream);MainDocumentPart mainDocumentPart = doc.getMainDocumentPart();if (!CollectionUtils.isEmpty(map)) {Docx4jUtils.cleanDocumentPart(mainDocumentPart);mainDocumentPart.variableReplace(map);}// 输出word文件doc.save(outputStream);outputStream.flush();} catch (Exception e) {log.error(e.getMessage(), e);}}/*** 替换变量并输出PDF文档* @param inputStream* @param map* @param outputStream* */public static void replaceDocOutputPDF(InputStream inputStream, Map<String, String> map,OutputStream outputStream) {try {WordprocessingMLPackage doc = WordprocessingMLPackage.load(inputStream);MainDocumentPart mainDocumentPart = doc.getMainDocumentPart();if (!CollectionUtils.isEmpty(map)) {Docx4jUtils.cleanDocumentPart(mainDocumentPart);mainDocumentPart.variableReplace(map);}setFontMapper(doc);FOSettings foSettings = Docx4J.createFOSettings();foSettings.setWmlPackage(doc);Docx4J.toFO(foSettings, outputStream, Docx4J.FLAG_EXPORT_PREFER_XSL);outputStream.flush();} catch (Exception e) {log.error(e.getMessage(), e);}}private static void setFontMapper(WordprocessingMLPackage mlPackage) throws Exception {Mapper fontMapper = new IdentityPlusMapper();fontMapper.put("隶书", PhysicalFonts.get("LiSu"));fontMapper.put("宋体", PhysicalFonts.get("SimSun"));fontMapper.put("微软雅黑", PhysicalFonts.get("Microsoft Yahei"));fontMapper.put("黑体", PhysicalFonts.get("SimHei"));fontMapper.put("楷体", PhysicalFonts.get("KaiTi"));fontMapper.put("新宋体", PhysicalFonts.get("NSimSun"));fontMapper.put("华文行楷", PhysicalFonts.get("STXingkai"));fontMapper.put("华文仿宋", PhysicalFonts.get("STFangsong"));fontMapper.put("仿宋", PhysicalFonts.get("FangSong"));fontMapper.put("幼圆", PhysicalFonts.get("YouYuan"));fontMapper.put("华文宋体", PhysicalFonts.get("STSong"));fontMapper.put("华文中宋", PhysicalFonts.get("STZhongsong"));fontMapper.put("等线", PhysicalFonts.get("SimSun"));fontMapper.put("等线 Light", PhysicalFonts.get("SimSun"));fontMapper.put("华文琥珀", PhysicalFonts.get("STHupo"));fontMapper.put("华文隶书", PhysicalFonts.get("STLiti"));fontMapper.put("华文新魏", PhysicalFonts.get("STXinwei"));fontMapper.put("华文彩云", PhysicalFonts.get("STCaiyun"));fontMapper.put("方正姚体", PhysicalFonts.get("FZYaoti"));fontMapper.put("方正舒体", PhysicalFonts.get("FZShuTi"));fontMapper.put("华文细黑", PhysicalFonts.get("STXihei"));fontMapper.put("宋体扩展",PhysicalFonts.get("simsun-extB"));fontMapper.put("仿宋_GB2312",PhysicalFonts.get("FangSong_GB2312"));fontMapper.put("新細明體",PhysicalFonts.get("SimSun"));//解决宋体（正文）和宋体（标题）的乱码问题PhysicalFonts.put("PMingLiU", PhysicalFonts.get("SimSun"));PhysicalFonts.put("新細明體", PhysicalFonts.get("SimSun"));mlPackage.setFontMapper(fontMapper);}public static boolean cleanDocumentPart(MainDocumentPart documentPart) throws Exception {if (documentPart == null) return false;Document document = documentPart.getContents();String wmlTemplate = XmlUtils.marshaltoString(document, true, false, Context.jc);document = (Document) XmlUtils.unwrap(DocxVariableClearUtils.doCleanDocumentPart(wmlTemplate, Context.jc));documentPart.setContents(document);return true;}private static class DocxVariableClearUtils {/*** 去任意XML标签*/private static final Pattern XML_PATTERN = Pattern.compile("<[^>]*>");private DocxVariableClearUtils() { }/*** start符号*/private static final char PREFIX = '$';/*** 中包含*/private static final char LEFT_BRACE = '{';/*** 结尾*/private static final char RIGHT_BRACE = '}';/*** 未开始*/private static final int NONE_START = -1;/*** 未开始*/private static final int NONE_START_INDEX = -1;/*** 开始*/private static final int PREFIX_STATUS = 1;/*** 左括号*/private static final int LEFT_BRACE_STATUS = 2;/*** 右括号*/private static final int RIGHT_BRACE_STATUS = 3;/*** doCleanDocumentPart** @param wmlTemplate* @param jc* @return* @throws JAXBException*/private static Object doCleanDocumentPart(String wmlTemplate, JAXBContext jc) throws JAXBException {// 进入变量块位置int curStatus = NONE_START;// 开始位置int keyStartIndex = NONE_START_INDEX;// 当前位置int curIndex = 0;char[] textCharacters = wmlTemplate.toCharArray();StringBuilder documentBuilder = new StringBuilder(textCharacters.length);documentBuilder.append(textCharacters);// 新文档StringBuilder newDocumentBuilder = new StringBuilder(textCharacters.length);// 最后一次写位置int lastWriteIndex = 0;for (char c : textCharacters) {switch (c) {case PREFIX:// TODO 不管其何状态直接修改指针,这也意味着变量名称里面不能有PREFIXkeyStartIndex = curIndex;curStatus = PREFIX_STATUS;break;case LEFT_BRACE:if (curStatus == PREFIX_STATUS) {curStatus = LEFT_BRACE_STATUS;}break;case RIGHT_BRACE:if (curStatus == LEFT_BRACE_STATUS) {// 接上之前的字符newDocumentBuilder.append(documentBuilder.substring(lastWriteIndex, keyStartIndex));// 结束位置int keyEndIndex = curIndex + 1;// 替换String rawKey = documentBuilder.substring(keyStartIndex, keyEndIndex);// 干掉多余标签String mappingKey = XML_PATTERN.matcher(rawKey).replaceAll("");if (!mappingKey.equals(rawKey)) {char[] rawKeyChars = rawKey.toCharArray();// 保留原格式StringBuilder rawStringBuilder = new StringBuilder(rawKey.length());// 去掉变量引用字符for (char rawChar : rawKeyChars) {if (rawChar == PREFIX || rawChar == LEFT_BRACE || rawChar == RIGHT_BRACE) {continue;}rawStringBuilder.append(rawChar);}// FIXME 要求变量连在一起String variable = mappingKey.substring(2, mappingKey.length() - 1);int variableStart = rawStringBuilder.indexOf(variable);if (variableStart > 0) {rawStringBuilder = rawStringBuilder.replace(variableStart, variableStart + variable.length(), mappingKey);}newDocumentBuilder.append(rawStringBuilder.toString());} else {newDocumentBuilder.append(mappingKey);}lastWriteIndex = keyEndIndex;curStatus = NONE_START;keyStartIndex = NONE_START_INDEX;}default: break;}curIndex++;}// 余部if (lastWriteIndex < documentBuilder.length())newDocumentBuilder.append(documentBuilder.substring(lastWriteIndex));return XmlUtils.unmarshalString(newDocumentBuilder.toString(), jc);}}
}

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使用docx4j在线word转换pdf及替换文本域

编码实现

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