java实现doc转docx的几种方式

1. 使用Apache POI库进行转换：

import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.converter.WordToConverter;
import org.apache.poi.hwpf.usermodel.Range;

import java.io.*;

public class DocToDocxConverter {
    public static void main(String[] args) throws Exception {
        // 读取doc文件
        InputStream inputStream = new FileInputStream("test.doc");
        HWPFDocument document = new HWPFDocument(inputStream);

        // 转换为docx文件
        WordToConverter converter = new WordToConverter(DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument());
        converter.processDocument(document);

        // 写入docx文件
        OutputStream outputStream = new FileOutputStream("test.docx");
        converter.getDocument().write(outputStream);

        // 关闭流
        outputStream.close();
        inputStream.close();
    }
}

2. 使用Aspose.Words库进行转换：

import com.aspose.words.Document;
import com.aspose.words.SaveFormat;

import java.io.*;

public class DocToDocxConverter {
    public static void main(String[] args) throws Exception {
        // 读取doc文件
        InputStream inputStream = new FileInputStream("test.doc");
        Document document = new Document(inputStream);

        // 转换为docx文件
        document.save("test.docx", SaveFormat.DOCX);

        // 关闭流
        inputStream.close();
    }
}

3. 使用JodConverter库进行转换：

import com.documents4j.api.DocumentType;
import com.documents4j.api.IConverter;
import com.documents4j.job.LocalConverter;

import java.io.*;

public class DocToDocxConverter {
    public static void main(String[] args) throws Exception {
        // 创建IConverter对象
        IConverter converter = LocalConverter.builder().build();
        
        // 读取doc文件
        InputStream inputStream = new FileInputStream("test.doc");

        // 写入docx文件
        OutputStream outputStream = new FileOutputStream("test.docx");
        
        // 转换为docx文件
        converter.convert(inputStream).as(DocumentType.MS_WORD).to(outputStream).as(DocumentType.DOCX).execute();

        // 关闭流
        outputStream.close();
        inputStream.close();
        
        // 关闭IConverter对象
        converter.shutDown();
    }
}