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BAEL-5773 Code for the Replacing Variables in a Document Template with Java article

This commit is contained in:
thibault.faure 2023-05-22 23:49:35 +02:00
parent 0238c2b948
commit 4487183c83
10 changed files with 268 additions and 4 deletions
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13
apache-poi-2/pom.xml
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@ -1,7 +1,7 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>apache-poi-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
@ -19,10 +19,15 @@
<artifactId>poi-ooxml</artifactId>
<version>${poi.version}</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-scratchpad</artifactId>
<version>${poi.version}</version>
</dependency>
</dependencies>
<properties>
<poi.version>5.2.0</poi.version>
<poi.version>5.2.3</poi.version>
</properties>
</project>

38
apache-poi-2/src/main/java/com/baeldung/poi/replacevariables/DocTextReplacer.java Normal file
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package com.baeldung.poi.replacevariables;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.usermodel.Range;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
public class DocTextReplacer {
public void replaceText() throws IOException {
String filePath = getClass().getClassLoader()
.getResource("baeldung.doc")
.getPath();
try (InputStream inputStream = new FileInputStream(filePath); POIFSFileSystem fileSystem = new POIFSFileSystem(inputStream)) {
HWPFDocument doc = new HWPFDocument(fileSystem);
doc = replaceText(doc, "Baeldung", "Hello");
saveFile(filePath, doc);
doc.close();
}
}
private HWPFDocument replaceText(HWPFDocument doc, String originalText, String updatedText) {
Range range = doc.getRange();
range.replaceText(originalText, updatedText);
return doc;
}
private void saveFile(String filePath, HWPFDocument doc) throws IOException {
try (FileOutputStream out = new FileOutputStream(filePath)) {
doc.write(out);
}
}
}

63
apache-poi-2/src/main/java/com/baeldung/poi/replacevariables/DocxNaiveTextReplacer.java Normal file
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package com.baeldung.poi.replacevariables;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFRun;
import org.apache.poi.xwpf.usermodel.XWPFTable;
import org.apache.poi.xwpf.usermodel.XWPFTableCell;
import org.apache.poi.xwpf.usermodel.XWPFTableRow;
public class DocxNaiveTextReplacer {
public void replaceText() throws IOException {
String filePath = getClass().getClassLoader()
.getResource("baeldung-copy.docx")
.getPath();
try (InputStream inputStream = new FileInputStream(filePath)) {
XWPFDocument doc = new XWPFDocument(inputStream);
doc = replaceText(doc, "Baeldung", "Hello");
saveFile(filePath, doc);
doc.close();
}
}
private XWPFDocument replaceText(XWPFDocument doc, String originalText, String updatedText) {
replaceTextInParagraphs(doc.getParagraphs(), originalText, updatedText);
for (XWPFTable tbl : doc.getTables()) {
for (XWPFTableRow row : tbl.getRows()) {
for (XWPFTableCell cell : row.getTableCells()) {
replaceTextInParagraphs(cell.getParagraphs(), originalText, updatedText);
}
}
}
return doc;
}
private void replaceTextInParagraphs(List<XWPFParagraph> paragraphs, String originalText, String updatedText) {
paragraphs.forEach(paragraph -> replaceTextInParagraph(paragraph, originalText, updatedText));
}
private void replaceTextInParagraph(XWPFParagraph paragraph, String originalText, String updatedText) {
List<XWPFRun> runs = paragraph.getRuns();
for (XWPFRun run : runs) {
String text = run.getText(0);
if (text != null && text.contains(originalText)) {
String updatedRunText = text.replace(originalText, updatedText);
run.setText(updatedRunText, 0);
}
}
}
private void saveFile(String filePath, XWPFDocument doc) throws IOException {
try (FileOutputStream out = new FileOutputStream(filePath)) {
doc.write(out);
}
}
}

65
apache-poi-2/src/main/java/com/baeldung/poi/replacevariables/DocxTextReplacer.java Normal file
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package com.baeldung.poi.replacevariables;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.Objects;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFRun;
import org.apache.poi.xwpf.usermodel.XWPFTable;
import org.apache.poi.xwpf.usermodel.XWPFTableCell;
import org.apache.poi.xwpf.usermodel.XWPFTableRow;
public class DocxTextReplacer {
public void replaceText() throws IOException {
String filePath = getClass().getClassLoader()
.getResource("baeldung.docx")
.getPath();
try (InputStream inputStream = new FileInputStream(filePath)) {
XWPFDocument doc = new XWPFDocument(inputStream);
doc = replaceText(doc, "Baeldung", "Hello");
saveFile(filePath, doc);
doc.close();
}
}
private XWPFDocument replaceText(XWPFDocument doc, String originalText, String updatedText) {
replaceTextInParagraphs(doc.getParagraphs(), originalText, updatedText);
for (XWPFTable tbl : doc.getTables()) {
for (XWPFTableRow row : tbl.getRows()) {
for (XWPFTableCell cell : row.getTableCells()) {
replaceTextInParagraphs(cell.getParagraphs(), originalText, updatedText);
}
}
}
return doc;
}
private void replaceTextInParagraphs(List<XWPFParagraph> paragraphs, String originalText, String updatedText) {
paragraphs.forEach(paragraph -> replaceTextInParagraph(paragraph, originalText, updatedText));
}
private void replaceTextInParagraph(XWPFParagraph paragraph, String originalText, String updatedText) {
String paragraphText = paragraph.getParagraphText();
if (paragraphText.contains(originalText)) {
String updatedParagraphText = paragraphText.replace(originalText, updatedText);
while (paragraph.getRuns().size() > 0) {
paragraph.removeRun(0);
}
XWPFRun newRun = paragraph.createRun();
newRun.setText(updatedParagraphText);
}
}
private void saveFile(String filePath, XWPFDocument doc) throws IOException {
try (FileOutputStream out = new FileOutputStream(filePath)) {
doc.write(out);
}
}
}

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apache-poi-2/src/main/resources/baeldung-copy.docx Normal file
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apache-poi-2/src/main/resources/baeldung.doc Normal file
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apache-poi-2/src/main/resources/baeldung.docx Normal file
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31
apache-poi-2/src/test/java/com/baeldung/poi/replacevariables/DocTextReplacerUnitTest.java Normal file
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package com.baeldung.poi.replacevariables;
import static org.junit.jupiter.api.Assertions.assertEquals;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Arrays;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.extractor.WordExtractor;
import org.junit.jupiter.api.Test;
class DocTextReplacerUnitTest {
@Test
void whenReplaceText_ThenTextReplaced() throws IOException {
new DocTextReplacer().replaceText();
String filePath = getClass().getClassLoader()
.getResource("baeldung.doc")
.getPath();
try (FileInputStream fis = new FileInputStream(filePath); HWPFDocument document = new HWPFDocument(fis); WordExtractor extractor = new WordExtractor(document)) {
long occurrencesOfHello = Arrays.stream(extractor.getText()
.split("\\s+"))
.filter(s -> s.contains("Hello"))
.count();
assertEquals(5, occurrencesOfHello);
}
}
}

31
apache-poi-2/src/test/java/com/baeldung/poi/replacevariables/DocxNaiveTextReplacerUnitTest.java Normal file
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package com.baeldung.poi.replacevariables;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Arrays;
import org.apache.poi.xwpf.extractor.XWPFWordExtractor;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.junit.jupiter.api.Test;
class DocxNaiveTextReplacerUnitTest {
@Test
void whenReplaceText_ThenTextReplaced() throws IOException {
new DocxNaiveTextReplacer().replaceText();
String filePath = getClass().getClassLoader()
.getResource("baeldung-copy.docx")
.getPath();
try (FileInputStream fis = new FileInputStream(filePath); XWPFDocument document = new XWPFDocument(fis); XWPFWordExtractor extractor = new XWPFWordExtractor(document)) {
long occurrencesOfHello = Arrays.stream(extractor.getText()
.split("\\s+"))
.filter(s -> s.contains("Hello"))
.count();
assertTrue(occurrencesOfHello < 5);
}
}
}

31
apache-poi-2/src/test/java/com/baeldung/poi/replacevariables/DocxTestReplacerUnitTest.java Normal file
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package com.baeldung.poi.replacevariables;
import static org.junit.jupiter.api.Assertions.assertEquals;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Arrays;
import org.apache.poi.xwpf.extractor.XWPFWordExtractor;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.junit.jupiter.api.Test;
class DocxTestReplacerUnitTest {
@Test
void whenReplaceText_ThenTextReplaced() throws IOException {
new DocxTextReplacer().replaceText();
String filePath = getClass().getClassLoader()
.getResource("baeldung.docx")
.getPath();
try (FileInputStream fis = new FileInputStream(filePath); XWPFDocument document = new XWPFDocument(fis); XWPFWordExtractor extractor = new XWPFWordExtractor(document)) {
long occurrencesOfHello = Arrays.stream(extractor.getText()
.split("\\s+"))
.filter(s -> s.contains("Hello"))
.count();
assertEquals(5, occurrencesOfHello);
}
}
}