我正在尝试使用此代码使用 pdfbox jar 在 java 中合并多个 pdf 文件。当它试图将第二个 pdf 合并到第一个时......它会出现 Stream closed 错误。有人可以帮我吗？
public static string PDFMergingForForeignModule String(folder_name) {
//Creating a File object for directory
String path = "E:\Code";
File directoryPath = new File(path);
File[] files = directoryPath.list();
String mergedFileName = "Merged_"+folder_name+".pdf";
path = path + "\\"+ mergedFileName;
mergePDFFiles(files, path);
File mergedFile = new File(mergedFileName);
}
public void mergePDFFiles(File[] files, String filepath) throws COSVisitorException{
try {
PDFMergerUtility pdfmerger = new PDFMergerUtility();
for (File file : files) {
PDDocument document = PDDocument.load(file);
pdfmerger.setDestinationFileName(filepath);
pdfmerger.addSource(file);
pdfmerger.mergeDocuments();
document.close();
}
} catch (IOException e) {
logger.error("Error to merge files. Error: " + e.getMessage());
}
}