按照本文操作即可使用 Java REST API 合并演示文稿。它将指导您使用基于 Java 的 Cloud SDK 开发使用 Java Low Code API 合并 PowerPoint 演示文稿。您还将学习如何显示输出 PPT/PPTX 文件属性，并在需要时从云存储下载输出演示文稿文件。
先决条件
下载 Aspose.Slides Cloud SDK for Java for merging presentations
使用上述 SDK 设置 Java 项目以在线整合 PPTX
将 PowerPoint 幻灯片与 Java RESTful 服务相结合的步骤
- 通过设置用于合并演示文稿的客户端 ID 和密钥来创建 SlidesApi 类的对象
- 通过设置唯一名称将目标和输入演示文稿上传到云存储
- 创建 PresentationsMergeRequest 对象并设置要合并的输入演示文稿的路径
- 调用 Merge 方法，提供目标演示文稿名称和请求对象
- 显示 Merge() API 调用返回的结果演示属性
- 合并输入演示文稿后下载并保存输出演示文稿
这些步骤描述了如何将 PPT 与基于 Java 的 API 相结合。主要步骤是将所有目标和输入演示文稿上传到云存储，并在请求对象中设置演示文稿的云路径列表。最后，通过提供目标演示文稿和请求对象来调用 Merge() 方法，并可选择将输出目标演示文稿下载到本地存储。
将 PowerPoint 与 Java Low Code API 合并的代码
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| import com.aspose.slides.ApiException; | |
| import com.aspose.slides.api.SlidesApi; | |
| import com.aspose.slides.model.ExportFormat; | |
| import com.aspose.slides.model.PresentationsMergeRequest; | |
| import java.io.File; | |
| import java.io.IOException; | |
| import java.nio.file.Files; | |
| import java.nio.file.Path; | |
| import java.nio.file.StandardCopyOption; | |
| import java.util.Arrays; | |
| public class Example_MergePresentation { | |
| protected static SlidesApi presentationApi; | |
| public Example_MergePresentation() { | |
| if (presentationApi == null) { | |
| presentationApi = new SlidesApi("appSid", "appKey"); | |
| } | |
| } | |
| public void mergePresentation() throws ApiException, IOException { | |
| String localPath = "/home/downloads/"; | |
| String fileName = "Merge.pptx"; | |
| String inputFile1 = "1-NewSales.pptx"; | |
| String inputFile2 = "2-NewSales.pptx"; | |
| String storageFolderName = "TempTests"; | |
| presentationApi.uploadFile(storageFolderName+"/"+inputFile1, readFileToByteArray(localPath + inputFile1),null); | |
| presentationApi.uploadFile(storageFolderName+"/"+inputFile2, readFileToByteArray(localPath + inputFile2),null); | |
| PresentationsMergeRequest request = new PresentationsMergeRequest(); | |
| request.setPresentationPaths(Arrays.asList(inputFile1, inputFile2)); | |
| // Merge the presentations. | |
| presentationApi.merge(fileName, request,null, storageFolderName,null); | |
| // Download the created presentation | |
| File createdPresentation = presentationApi.downloadPresentation(fileName, ExportFormat.PPTX, null, null, | |
| storageFolderName,null,null,null); | |
| // Copy the downloaded presentation to the local directory | |
| copyFile(createdPresentation, new File(localPath, fileName)); | |
| System.out.println("Presentation Merged and copied to: " + localPath + fileName); | |
| } | |
| public static byte[] readFileToByteArray(String filePath) throws IOException { | |
| Path path = new File(filePath).toPath(); | |
| return Files.readAllBytes(path); | |
| } | |
| private void copyFile(File sourceFile, File targetFile) throws IOException { | |
| if (sourceFile == null || !sourceFile.exists()) { | |
| throw new IOException("Source file does not exist: " + sourceFile); | |
| } | |
| // Ensure the target directory exists | |
| Path targetPath = targetFile.toPath(); | |
| Files.createDirectories(targetPath.getParent()); | |
| // Copy the file | |
| Files.copy(sourceFile.toPath(), targetPath, StandardCopyOption.REPLACE_EXISTING); | |
| } | |
| } |
此代码演示了使用 Java RESTful 服务开发 PPTX 合并器。请注意，您可以通过在请求对象中设置文件名的顺序来更改合并的顺序。在请求对象中添加输入文件时，您可以根据需要为所有或选定的演示文稿提供密码。
本文教我们如何使用 Web API 组合演示文稿。如果您想创建演示文稿，请参阅 使用 Java REST API 创建演示文稿 上的文章。
