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我需要一个简单的 HTML2RTF 转换器,我尝试运行以下代码....但我收到此代码示例的错误

代码:

import java.io.ByteArrayInputStream;
import java.io.StringWriter;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.swing.text.Document;
import javax.swing.text.html.HTMLEditorKit;
import javax.swing.text.rtf.RTFEditorKit;

public class converter {
    private static Pattern htmlTrimPattern = Pattern.compile(".*<body>(.*)</body>.*", Pattern.DOTALL);

    public static void main(String[] args)
    {


        toRtf("<!DOCTYPE html>\n" +
                "<html>\n" +
                "<body>\n" +
                "\n" +
                "<h1>My First Heading</h1>\n" +
                "\n" +
                "<p>My first paragraph.</p>\n" +
                "\n" +
                "</body>\n" +
                "</html>\n");

    }

    public static String toRtf(String html) {
        ByteArrayInputStream input= new ByteArrayInputStream(html.getBytes());
        StringWriter writer = new StringWriter();
        try {
            RTFEditorKit rtfEditorKit = new RTFEditorKit();
            HTMLEditorKit htmlEditorKit = new HTMLEditorKit();
            Document htmlDoc = htmlEditorKit.createDefaultDocument();
            htmlEditorKit.read(input, htmlDoc, 0);
            rtfEditorKit.write(writer, htmlDoc, 0, htmlDoc.getLength());
        } catch (Exception ex) {
            System.out.println("Error"+ex);
        }
        System.out.println(writer.toString());
        return writer.toString();
    }
}

错误:

Errorjava.io.IOException: RTF is an 8-bit format

我究竟做错了什么?在这种情况下,谷歌不是我的朋友,我希望你能帮助我:)

4

1 回答 1

7

RTF是一种 8 位格式,但您将内容发送到 a Writer,这是一个“用于写入字符流的类”。尝试使用 的变write()ByteArrayOutputStream

ByteArrayOutputStream baos = new ByteArrayOutputStream();
…
rtfEditorKit.write(baos, htmlDoc, 0, htmlDoc.getLength());
…
System.out.println(baos.toString());

安慰:

{\rtf1\ansi
{\fonttbl\f0\fnil 等宽;}

\par
我的第一个标题我的第一段。\par
}
于 2013-10-04T23:43:00.043 回答