简单地执行JSoup .parse(html).text()有两个潜在的问题(对于JSoup 1.7.3):

它从文本中删除换行符 它转换文本&lt;脚本&gt;>到<脚本

如果您使用它来防止XSS，这有点烦人。下面是我在一个改进的解决方案中最好的尝试，使用JSoup和Apache StringEscapeUtils:

// breaks multi-level of escaping, preventing &amp;lt;script&amp;gt; to be rendered as <script>
String replace = input.replace("&amp;", "");
// decode any encoded html, preventing &lt;script&gt; to be rendered as <script>
String html = StringEscapeUtils.unescapeHtml(replace);
// remove all html tags, but maintain line breaks
String clean = Jsoup.clean(html, "", Whitelist.none(), new Document.OutputSettings().prettyPrint(false));
// decode html again to convert character entities back into text
return StringEscapeUtils.unescapeHtml(clean);

注意，最后一步是因为我需要将输出作为纯文本使用。如果您只需要HTML输出，那么您应该能够删除它。

下面是一堆测试用例(从输入到输出):

{"regular string", "regular string"},
{"<a href=\"link\">A link</a>", "A link"},
{"<script src=\"http://evil.url.com\"/>", ""},
{"&lt;script&gt;", ""},
{"&amp;lt;script&amp;gt;", "lt;scriptgt;"}, // best effort
{"\" ' > < \n \\ é å à ü and & preserved", "\" ' > < \n \\ é å à ü and & preserved"}

如果你有办法让它变得更好，请告诉我。

这里有一个稍微更充实的更新，试图处理一些格式的休息和列表。我用Amaya的输出作为指导。

import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.util.Stack;
import java.util.logging.Logger;

import javax.swing.text.MutableAttributeSet;
import javax.swing.text.html.HTML;
import javax.swing.text.html.HTMLEditorKit;
import javax.swing.text.html.parser.ParserDelegator;

public class HTML2Text extends HTMLEditorKit.ParserCallback {
    private static final Logger log = Logger
            .getLogger(Logger.GLOBAL_LOGGER_NAME);

    private StringBuffer stringBuffer;

    private Stack<IndexType> indentStack;

    public static class IndexType {
        public String type;
        public int counter; // used for ordered lists

        public IndexType(String type) {
            this.type = type;
            counter = 0;
        }
    }

    public HTML2Text() {
        stringBuffer = new StringBuffer();
        indentStack = new Stack<IndexType>();
    }

    public static String convert(String html) {
        HTML2Text parser = new HTML2Text();
        Reader in = new StringReader(html);
        try {
            // the HTML to convert
            parser.parse(in);
        } catch (Exception e) {
            log.severe(e.getMessage());
        } finally {
            try {
                in.close();
            } catch (IOException ioe) {
                // this should never happen
            }
        }
        return parser.getText();
    }

    public void parse(Reader in) throws IOException {
        ParserDelegator delegator = new ParserDelegator();
        // the third parameter is TRUE to ignore charset directive
        delegator.parse(in, this, Boolean.TRUE);
    }

    public void handleStartTag(HTML.Tag t, MutableAttributeSet a, int pos) {
        log.info("StartTag:" + t.toString());
        if (t.toString().equals("p")) {
            if (stringBuffer.length() > 0
                    && !stringBuffer.substring(stringBuffer.length() - 1)
                            .equals("\n")) {
                newLine();
            }
            newLine();
        } else if (t.toString().equals("ol")) {
            indentStack.push(new IndexType("ol"));
            newLine();
        } else if (t.toString().equals("ul")) {
            indentStack.push(new IndexType("ul"));
            newLine();
        } else if (t.toString().equals("li")) {
            IndexType parent = indentStack.peek();
            if (parent.type.equals("ol")) {
                String numberString = "" + (++parent.counter) + ".";
                stringBuffer.append(numberString);
                for (int i = 0; i < (4 - numberString.length()); i++) {
                    stringBuffer.append(" ");
                }
            } else {
                stringBuffer.append("*   ");
            }
            indentStack.push(new IndexType("li"));
        } else if (t.toString().equals("dl")) {
            newLine();
        } else if (t.toString().equals("dt")) {
            newLine();
        } else if (t.toString().equals("dd")) {
            indentStack.push(new IndexType("dd"));
            newLine();
        }
    }

    private void newLine() {
        stringBuffer.append("\n");
        for (int i = 0; i < indentStack.size(); i++) {
            stringBuffer.append("    ");
        }
    }

    public void handleEndTag(HTML.Tag t, int pos) {
        log.info("EndTag:" + t.toString());
        if (t.toString().equals("p")) {
            newLine();
        } else if (t.toString().equals("ol")) {
            indentStack.pop();
            ;
            newLine();
        } else if (t.toString().equals("ul")) {
            indentStack.pop();
            ;
            newLine();
        } else if (t.toString().equals("li")) {
            indentStack.pop();
            ;
            newLine();
        } else if (t.toString().equals("dd")) {
            indentStack.pop();
            ;
        }
    }

    public void handleSimpleTag(HTML.Tag t, MutableAttributeSet a, int pos) {
        log.info("SimpleTag:" + t.toString());
        if (t.toString().equals("br")) {
            newLine();
        }
    }

    public void handleText(char[] text, int pos) {
        log.info("Text:" + new String(text));
        stringBuffer.append(text);
    }

    public String getText() {
        return stringBuffer.toString();
    }

    public static void main(String args[]) {
        String html = "<html><body><p>paragraph at start</p>hello<br />What is happening?<p>this is a<br />mutiline paragraph</p><ol>  <li>This</li>  <li>is</li>  <li>an</li>  <li>ordered</li>  <li>list    <p>with</p>    <ul>      <li>another</li>      <li>list        <dl>          <dt>This</dt>          <dt>is</dt>            <dd>sdasd</dd>            <dd>sdasda</dd>            <dd>asda              <p>aasdas</p>            </dd>            <dd>sdada</dd>          <dt>fsdfsdfsd</dt>        </dl>        <dl>          <dt>vbcvcvbcvb</dt>          <dt>cvbcvbc</dt>            <dd>vbcbcvbcvb</dd>          <dt>cvbcv</dt>          <dt></dt>        </dl>        <dl>          <dt></dt>        </dl></li>      <li>cool</li>    </ul>    <p>stuff</p>  </li>  <li>cool</li></ol><p></p></body></html>";
        System.out.println(convert(html));
    }
}

使用Html.fromHtml

HTML标签是

<a href=”…”> <b>,  <big>, <blockquote>, <br>, <cite>, <dfn>
<div align=”…”>,  <em>, <font size=”…” color=”…” face=”…”>
<h1>,  <h2>, <h3>, <h4>,  <h5>, <h6>
<i>, <p>, <small>
<strike>,  <strong>, <sub>, <sup>, <tt>, <u>

根据Android的官方文档，HTML中的任何标签都将显示为一个通用的替换字符串，你的程序可以通过并替换为真正的字符串。

超文本标记语言formHtml方法接受一个Html。TagHandler和Html。ImageGetter作为参数以及要解析的文本。

例子

String Str_Html=" <p>This is about me text that the user can put into their profile</p> ";

Then

Your_TextView_Obj.setText(Html.fromHtml(Str_Html).toString());

输出

这是关于我的文本，用户可以放入他们的个人资料

听起来好像您想从HTML转换为纯文本。 如果是这样的话，请查看www.htmlparser.org。下面是一个示例，它从URL中找到的html文件中剥离所有标记。 它使用org.htmlparser.beans.StringBean。

static public String getUrlContentsAsText(String url) {
    String content = "";
    StringBean stringBean = new StringBean();
    stringBean.setURL(url);
    content = stringBean.getStrings();
    return content;
}

〇应该可以

使用这个

  text.replaceAll('<.*?>' , " ") -> This will replace all the html tags with a space.

这

  text.replaceAll('&.*?;' , "")-> this will replace all the tags which starts with "&" and ends with ";" like  , &, > etc.

另一种方法是使用javax.swing.text.html.HTMLEditorKit来提取文本。

import java.io.*;
import javax.swing.text.html.*;
import javax.swing.text.html.parser.*;

public class Html2Text extends HTMLEditorKit.ParserCallback {
    StringBuffer s;

    public Html2Text() {
    }

    public void parse(Reader in) throws IOException {
        s = new StringBuffer();
        ParserDelegator delegator = new ParserDelegator();
        // the third parameter is TRUE to ignore charset directive
        delegator.parse(in, this, Boolean.TRUE);
    }

    public void handleText(char[] text, int pos) {
        s.append(text);
    }

    public String getText() {
        return s.toString();
    }

    public static void main(String[] args) {
        try {
            // the HTML to convert
            FileReader in = new FileReader("java-new.html");
            Html2Text parser = new Html2Text();
            parser.parse(in);
            in.close();
            System.out.println(parser.getText());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

ref:从文件中删除HTML标记，只提取文本