用Java语言读取doc或者docx类型的word文档,读取文档中的标题,标题级别,文本内容

可以使用Apache POI库来读取doc或者docx类型的word文档。

以下是一个示例代码：

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.usermodel.Paragraph;
import org.apache.poi.hwpf.usermodel.Range;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;

public class WordReader {

    public static void main(String[] args) {
        String filePath = "path/to/word/document";

        try (InputStream inputStream = new FileInputStream(filePath)) {
            if (filePath.endsWith(".doc")) {
                // Read .doc file
                HWPFDocument document = new HWPFDocument(inputStream);
                Range range = document.getRange();
                for (int i = 0; i < range.numParagraphs(); i++) {
                    Paragraph paragraph = range.getParagraph(i);
                    // get the text content of the paragraph
                    String text = paragraph.text();
                    // get the heading level of the paragraph
                    int level = paragraph.getLvl();
                    // do something with the text and level
                }
            } else if (filePath.endsWith(".docx")) {
                // Read .docx file
                XWPFDocument document = new XWPFDocument(inputStream);
                for (XWPFParagraph paragraph : document.getParagraphs()) {
                    // get the text content of the paragraph
                    String text = paragraph.getText();
                    // get the heading level of the paragraph
                    String style = paragraph.getStyle();
                    int level = 0;
                    if (style != null && style.startsWith("Heading")) {
                        level = Integer.parseInt(style.substring("Heading".length()));
                    }
                    // do something with the text and level
                }
            } else {
                throw new IllegalArgumentException("Unsupported file format: " + filePath);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}

在上面的代码中，我们首先判断文件类型是.doc还是.docx，然后使用HWPFDocument或XWPFDocument类来读取文档内容。对于每个段落，我们可以使用Paragraph或XWPFParagraph类来获取文本内容和标题级别。如果是.docx文件，我们需要使用getStyle()方法来获取段落的样式，然后从样式中提取标题级别。