Apache POI和XDOCREPORT NullPointerException
Apache POI和XDOCREPORT NullPointerException
提问于 2019-02-27 23:28:09
我正在做一个占位符替换在docx文件，之后我需要转换成PDF文件。我所有的努力都结束于
fr.opensagres.poi.xwpf.converter.core.XWPFConverterException: java.lang.NullPointerException
at fr.opensagres.poi.xwpf.converter.pdf.PdfConverter.doConvert(PdfConverter.java:71)
at fr.opensagres.poi.xwpf.converter.pdf.PdfConverter.doConvert(PdfConverter.java:39)
at fr.opensagres.poi.xwpf.converter.core.AbstractXWPFConverter.convert(AbstractXWPFConverter.java:46).我正在使用这些依赖项：
implementation("org.apache.poi:poi-ooxml:3.17")
implementation("fr.opensagres.xdocreport:fr.opensagres.xdocreport.converter.docx.xwpf:2.0.1")如果我尝试转换源(未更改的) docx文件，一切正常，但当我替换占位符并保存文档时，一切都崩溃了。我的一段代码：
FileInputStream fis = new FileInputStream(COPIED);
XWPFDocument doc = new XWPFDocument(fis);
doc.createStyles();
for (XWPFParagraph p : doc.getParagraphs()) {
List<XWPFRun> runs = p.getRuns();
if (runs != null) {
for (XWPFRun r : runs) {
String text = r.getText(0);
StringSubstitutor substitutor = new StringSubstitutor(fieldsForReport);
String replacedText = substitutor.replace(text);
r.setText(replacedText, 0);
}
}
}
for (XWPFTable tbl : doc.getTables()) {
for (XWPFTableRow row : tbl.getRows()) {
for (XWPFTableCell cell : row.getTableCells()) {
for (XWPFParagraph p : cell.getParagraphs()) {
for (XWPFRun r : p.getRuns()) {
String text = r.getText(0);
StringSubstitutor substitutor = new StringSubstitutor(fieldsForReport);
String replacedText = substitutor.replace(text);
r.setText(replacedText, 0);
}
}
}
}
}
FileOutputStream fos = new FileOutputStream(COPIED);
doc.write(fos);
doc.close();
FileInputStream fis = new FileInputStream(COPIED);
XWPFDocument document = new XWPFDocument(fis);
PdfOptions options = PdfOptions.create();
PdfConverter converter = (PdfConverter) PdfConverter.getInstance();
converter.convert(document, new FileOutputStream(DEST), options);
document.close();回答 1
Stack Overflow用户
回答已采纳
发布于 2019-03-01 02:18:05
使用最新的apache poi版本4.0.1和fr.opensagres.poi.xwpf.converter.core和consorts的最新版本的2.0.2，我可以使用下面的代码。
import java.io.InputStream;
import java.io.OutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.File;
//needed jars: fr.opensagres.poi.xwpf.converter.core-2.0.2.jar,
// fr.opensagres.poi.xwpf.converter.pdf-2.0.2.jar,
// fr.opensagres.xdocreport.itext.extension-2.0.2.jar,
// itext-4.2.1.jar
import fr.opensagres.poi.xwpf.converter.pdf.PdfOptions;
import fr.opensagres.poi.xwpf.converter.pdf.PdfConverter;
//needed jars: apache poi and it's dependencies
//inclusive ooxml-schemas-1.4.jar
import org.apache.poi.xwpf.usermodel.*;
public class DOCXToPDFConverterSampleMin {
public static void main(String[] args) throws Exception {
String docPath = "./WordDocument.docx";
String pdfPath = "./WordDocument.pdf";
InputStream in = new FileInputStream(new File(docPath));
XWPFDocument document = new XWPFDocument(in);
for (XWPFParagraph paragraph : document.getParagraphs()) {
for (XWPFRun run : paragraph.getRuns()) {
String text = run.getText(0);
if (text != null && text.contains("$name$")) {
text = text.replace("$name$", "Axel Richter");
run.setText(text, 0);
} else if (text != null && text.contains("$date$")) {
text = text.replace("$date$", "2019-02-28");
run.setText(text, 0);
}
}
}
for (XWPFTable table : document.getTables()) {
for (XWPFTableRow row : table.getRows()) {
for (XWPFTableCell cell : row.getTableCells()) {
for (XWPFParagraph paragraph : cell.getParagraphs()) {
for (XWPFRun run : paragraph.getRuns()) {
String text = run.getText(0);
if (text != null && text.contains("$name$")) {
text = text.replace("$name$", "Axel Richter");
run.setText(text,0);
} else if (text != null && text.contains("$date$")) {
text = text.replace("$date$", "2019-02-28");
run.setText(text, 0);
}
}
}
}
}
}
XWPFParagraph paragraph = document.createParagraph();
XWPFRun run = paragraph.createRun();
run.setText("This is new Text in this document.");
PdfOptions options = PdfOptions.create();
OutputStream out = new FileOutputStream(new File(pdfPath));
PdfConverter.getInstance().convert(document, out, options);
document.close();
out.close();
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/54908930
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