wordpress 手机写文重庆seo网络优化咨询热线
项目场景：
在java服务中使用了apache.poi后生成的pptx在wps中打开是没有问题，但在office中打开显示如下XXX内容问题，修复（R）等问题
我是用的依赖版本如下
<dependency><groupId>org.apache.poi</groupId><artifactId>poi</artifactId><version>5.2.3</version> </dependency> <dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml</artifactId><version>5.2.3</version> </dependency>
原因分析：
提示：可以把适配的解压看里面的slide，有部分格式是不同的，为此直接用下面的服务层即可，我使用的纯流方式，没有文件夹，输入输出都是可以让AI帮你修改下的，主流程逻辑不要动
解决方案：
package com.project.zcustom.service.converter;import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.apache.commons.lang3.StringUtils;
import org.w3c.dom.*;
import javax.xml.XMLConstants;
import javax.xml.namespace.NamespaceContext;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathFactory;
import java.io.*;
import java.util.*;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.Executor;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;@Slf4j
@Service
public class PptXmlFormateService {@Autowiredprivate Executor threadPoolTaskExecutor;public byte[] xmlFormate(byte[] pptxBytes, String useFont) {useFont = StringUtils.isBlank(useFont) ? "宋体" : useFont;ByteArrayOutputStream resultStream = new ByteArrayOutputStream();try (ByteArrayInputStream bis = new ByteArrayInputStream(pptxBytes);ZipInputStream zis = new ZipInputStream(bis);ZipOutputStream zos = new ZipOutputStream(resultStream)) {Map<String, ByteArrayOutputStream> updatedFiles = new HashMap<>();// 遍历PPTX文件中的每个条目ZipEntry entry;while ((entry = zis.getNextEntry()) != null) {String entryName = entry.getName();ByteArrayOutputStream entryData = new ByteArrayOutputStream();// 读取条目内容byte[] buffer = new byte[1024];int len;while ((len = zis.read(buffer)) > 0) {entryData.write(buffer, 0, len);}// 仅处理幻灯片XML文件if (entryName.startsWith("ppt/slides/slide") && entryName.endsWith(".xml")) {try (ByteArrayInputStream xmlBais = new ByteArrayInputStream(entryData.toByteArray());ByteArrayOutputStream updatedXml = new ByteArrayOutputStream()) {// 解析XMLDocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();factory.setNamespaceAware(true);DocumentBuilder builder = factory.newDocumentBuilder();Document document = builder.parse(xmlBais);// 异步任务处理XMLCompletableFuture<Void> future = CompletableFuture.runAsync(() -> {// 删除标签String custDataLstXpath = "//*[local-name()='custDataLst']";removeNodesUsingXPath(document, custDataLstXpath);}, threadPoolTaskExecutor);// 等待任务完成并处理异常future.exceptionally(ex -> {log.error("处理XML异步任务时发生错误: {}", ex.getMessage(), ex);return null;}).join();// 写入修改后的XML内容TransformerFactory transformerFactory = TransformerFactory.newInstance();Transformer transformer = transformerFactory.newTransformer();transformer.setOutputProperty(OutputKeys.INDENT, "yes");DOMSource source = new DOMSource(document);StreamResult result = new StreamResult(updatedXml);transformer.transform(source, result);updatedFiles.put(entryName, updatedXml);} catch (Exception e) {log.error("处理XML文件时发生错误: {}", e.getMessage(), e);// 发生错误时保留原文件内容updatedFiles.put(entryName, entryData);}} else {// 对于其他条目，保持原样updatedFiles.put(entryName, entryData);}}// 写入更新后的PPTX文件for (Map.Entry<String, ByteArrayOutputStream> fileEntry : updatedFiles.entrySet()) {String entryName = fileEntry.getKey();ByteArrayOutputStream fileData = fileEntry.getValue();zos.putNextEntry(new ZipEntry(entryName));fileData.writeTo(zos);zos.closeEntry();}} catch (Exception e) {log.error("处理PPTX字节数组时发生错误: {}", e.getMessage(), e);throw new RuntimeException("PPTX处理失败", e);}return resultStream.toByteArray();}// 保持原有的XML节点移除方法不变public void removeNodesUsingXPath(Document document, String xpathExpression) {// 方法实现与原代码相同...XPath xPath = XPathFactory.newInstance().newXPath();// 设置命名空间前缀和 URINamespaceContext nsContext = new NamespaceContext() {public String getNamespaceURI(String prefix) {switch (prefix) {case "a":return "http://schemas.openxmlformats.org/drawingml/2006/main";case "p":return "http://schemas.openxmlformats.org/presentationml/2006/main";default:return XMLConstants.NULL_NS_URI;}}public String getPrefix(String namespaceURI) {return null;}public Iterator getPrefixes(String namespaceURI) {return null;}};xPath.setNamespaceContext(nsContext);try {NodeList nodes = (NodeList) xPath.evaluate(xpathExpression, document, XPathConstants.NODESET);for (int i = nodes.getLength() - 1; i >= 0; i--) { // 从后向前遍历Node node = nodes.item(i);Node parentNode = node.getParentNode();if (parentNode != null) {parentNode.removeChild(node);}}} catch (Exception e) {log.error("Error removing nodes using XPath: {}", e.getMessage());}}
}
这里换上你自己的项目的Executor或者默认的即可，调用xmlFormate方法即可