Java如何实现读取txt文件内容并生成Word文档

要实现Java读取txt文件内容并生成Word文档，你需要以下步骤：

步骤一：读取txt文件内容

1. 创建一个File对象，用于表示要读取的txt文件；
2. 创建一个BufferedReader对象，用于读取文件内容；
3. 使用BufferedReader的readLine()方法逐行读取文件内容，把每一行的文本保存到一个字符串变量中。

以下是示例代码：

File file = new File("example.txt");
BufferedReader bufferedReader = new BufferedReader(new FileReader(file));
String line;
StringBuilder stringBuilder = new StringBuilder();
while ((line = bufferedReader.readLine()) != null) {
    stringBuilder.append(line);
}
String content = stringBuilder.toString();

步骤二：生成Word文档

1. 创建一个XWPFDocument对象，用于表示Word文档；
2. 使用XWPFDocument的createParagraph()方法创建段落，使用createRun()方法创建文本；
3. 把txt文件中的文本加入到Word文档中；
4. 使用XWPFDocument的write()方法把文档保存到磁盘。

以下是示例代码：

XWPFDocument document = new XWPFDocument();
XWPFParagraph paragraph = document.createParagraph();
XWPFRun run = paragraph.createRun();
run.setText(content);
document.write(new FileOutputStream("example.docx"));

示例一：读取本地txt文件生成Word文档

import org.apache.poi.xwpf.usermodel.*;

import java.io.*;

public class FileToWord {

    public static void main(String[] args) throws IOException {
        File file = new File("example.txt");
        BufferedReader bufferedReader = new BufferedReader(new FileReader(file));
        String line;
        StringBuilder stringBuilder = new StringBuilder();
        while ((line = bufferedReader.readLine()) != null) {
            stringBuilder.append(line);
        }
        String content = stringBuilder.toString();

        XWPFDocument document = new XWPFDocument();
        XWPFParagraph paragraph = document.createParagraph();
        XWPFRun run = paragraph.createRun();
        run.setText(content);
        document.write(new FileOutputStream("example.docx"));

        bufferedReader.close();
    }
}

示例二：读取网络txt文件生成Word文档

import org.apache.poi.xwpf.usermodel.*;

import java.io.*;
import java.net.URL;

public class URLToWord {

    public static void main(String[] args) throws IOException {
        URL url = new URL("https://example.com/example.txt");
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(url.openStream()));
        String line;
        StringBuilder stringBuilder = new StringBuilder();
        while ((line = bufferedReader.readLine()) != null) {
            stringBuilder.append(line);
        }
        String content = stringBuilder.toString();

        XWPFDocument document = new XWPFDocument();
        XWPFParagraph paragraph = document.createParagraph();
        XWPFRun run = paragraph.createRun();
        run.setText(content);
        document.write(new FileOutputStream("example.docx"));

        bufferedReader.close();
    }
}