PoiWordToTextConverter — minimal POI-based word to text converter (DOC, DOCX)

make.sh

# build the executable
mvn clean compile assembly:single

# the jar will be created in the `target` folder and can be run with 
# java -jar text.doc text.txt

pom.xml

<?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">
    <modelVersion>4.0.0</modelVersion>
    <groupId>xh.wordconv</groupId>
    <artifactId>wordconv</artifactId>
    <version>1.0-SNAPSHOT</version>
    <properties>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi</artifactId>
            <version>3.17</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>3.17</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-scratchpad</artifactId>
            <version>3.17</version>
        </dependency>
    </dependencies>
    <build>
        <sourceDirectory>src</sourceDirectory>
        <plugins>
            <plugin>
                <artifactId>maven-assembly-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <archive>
                        <manifest>
                            <mainClass>WordToTextConverter</mainClass>
                        </manifest>
                    </archive>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

WordToTextConverter.java

// should go into the `src` folder relative to the `pom.xml` file

import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;

import org.apache.poi.POITextExtractor;
import org.apache.poi.extractor.ExtractorFactory;
import org.apache.poi.openxml4j.exceptions.OpenXML4JException;
import org.apache.xmlbeans.XmlException;

public class WordToTextConverter {
    public static void main(String[] args) {
        try {
            convertWordToText(args[0], args[1]);
        } catch (ArrayIndexOutOfBoundsException aiobe) {
            System.out.println("Usage: java WordToTextConverter <word_file> <text_file>");
        }
    }

    public static void convertWordToText(String src, String desc) {
        try {
            FileInputStream fs = new FileInputStream(src);
            final POITextExtractor extractor = ExtractorFactory.createExtractor(fs);
            FileWriter fw = new FileWriter(desc);
            fw.write(extractor.getText());
            fw.flush();
            fs.close();
            fw.close();

        } catch (IOException | OpenXML4JException | XmlException e) {
            e.printStackTrace();
        }
    }
}