java去掉html標(biāo)簽的方法：
1、通過純正則方法去掉html標(biāo)簽；
2、使用“javax.swing.text.html.HTMLEditorKit”去掉html標(biāo)簽；
3、通過使用Jsoup框架去掉html標(biāo)簽等等。

一.純正則方法

import java.util.regex.Matcher; 
import java.util.regex.Pattern; 
 
public class HTMLSpirit{ 
    public static String delHTMLTag(String htmlStr){ 
        String regEx_script="<script[^>]*?>[\\s\\S]*?<\\/script>"; //定義script的正則表達(dá)式 
        String regEx_style="<style[^>]*?>[\\s\\S]*?<\\/style>"; //定義style的正則表達(dá)式 
        String regEx_html="<[^>]+>"; //定義HTML標(biāo)簽的正則表達(dá)式 
          
        Pattern p_script=Pattern.compile(regEx_script,Pattern.CASE_INSENSITIVE); 
        Matcher m_script=p_script.matcher(htmlStr); 
        htmlStr=m_script.replaceAll(""); //過濾script標(biāo)簽 
          
        Pattern p_style=Pattern.compile(regEx_style,Pattern.CASE_INSENSITIVE); 
        Matcher m_style=p_style.matcher(htmlStr); 
        htmlStr=m_style.replaceAll(""); //過濾style標(biāo)簽 
          
        Pattern p_html=Pattern.compile(regEx_html,Pattern.CASE_INSENSITIVE); 
        Matcher m_html=p_html.matcher(htmlStr); 
        htmlStr=m_html.replaceAll(""); //過濾html標(biāo)簽 
 
        return htmlStr.trim(); //返回文本字符串 
    } 
}

二.使用 javax.swing.text.html.HTMLEditorKit

import java.io.IOException;
import java.io.FileReader;
import java.io.Reader;
import java.util.List;
import java.util.ArrayList;
 
import javax.swing.text.html.parser.ParserDelegator;
import javax.swing.text.html.HTMLEditorKit.ParserCallback;
import javax.swing.text.html.HTML.Tag;
import javax.swing.text.MutableAttributeSet;
 
public class HTMLUtils {
  private HTMLUtils() {}
 
  public static List<String> extractText(Reader reader) throws IOException {
    final ArrayList<String> list = new ArrayList<String>();
 
    ParserDelegator parserDelegator = new ParserDelegator();
    ParserCallback parserCallback = new ParserCallback() {
      public void handleText(final char[] data, final int pos) {
        list.add(new String(data));
      }
      public void handleStartTag(Tag tag, MutableAttributeSet attribute, int pos) { }
      public void handleEndTag(Tag t, final int pos) {  }
      public void handleSimpleTag(Tag t, MutableAttributeSet a, final int pos) { }
      public void handleComment(final char[] data, final int pos) { }
      public void handleError(final java.lang.String errMsg, final int pos) { }
    };
    parserDelegator.parse(reader, parserCallback, true);
    return list;
  }
 
  public final static void main(String[] args) throws Exception{
    FileReader reader = new FileReader("java-new.html");
    List<String> lines = HTMLUtils.extractText(reader);
    for (String line : lines) {
      System.out.println(line);
    }
  }
}

三.使用Jsoup框架

import java.io.IOException;
import java.io.FileReader;
import java.io.Reader;
import java.io.BufferedReader;
import org.jsoup.Jsoup;
 
public class HTMLUtils {
  private HTMLUtils() {}
 
  public static String extractText(Reader reader) throws IOException {
    StringBuilder sb = new StringBuilder();
    BufferedReader br = new BufferedReader(reader);
    String line;
    while ( (line=br.readLine()) != null) {
      sb.append(line);
    }
    String textOnly = Jsoup.parse(sb.toString()).text();
    return textOnly;
  }
 
  public final static void main(String[] args) throws Exception{
    FileReader reader = new FileReader
          ("C:/RealHowTo/topics/java-language.html");
    System.out.println(HTMLUtils.extractText(reader));
  }

四.使用Apache Tika

mport java.io.FileInputStream;
import java.io.InputStream;
 
import org.apache.tika.metadata.Metadata;
import org.apache.tika.parser.AutoDetectParser;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.parser.Parser;
import org.apache.tika.sax.BodyContentHandler;
import org.xml.sax.ContentHandler;
 
public class ParseHTMLWithTika {
  public static void main(String args[]) throws Exception {
 
    InputStream is = null;
    try {
 
         is = new FileInputStream("C:/Temp/java-x.html");
        WriteOutContentHandler contenthandler = new WriteOutContentHandler(100000000);
         Metadata metadata = new Metadata();
         Parser parser = new AutoDetectParser();
         parser.parse(is, contenthandler, metadata, new ParseContext());
         System.out.println(contenthandler.toString());
    }
    catch (Exception e) {
      e.printStackTrace();
    }
    finally {
        if (is != null) is.close();
    }
  }
}

注意這里經(jīng)過本人實驗有個小坑，WriteOutContentHandler參數(shù)是限制的字符數(shù)，這個如果不設(shè)置默認(rèn)是1萬，超過會報異常。

具體的jar包請自行到中央倉庫里搜索依賴配置

https://search.maven.org/ 和 https://mvnrepository.com/

工具類文章來源地址http://www.zghlxwxcb.cn/news/detail-646306.html

public class ResourceUtil {
    /**
     * 根據(jù)當(dāng)前類路徑，獲取資源文件夾對應(yīng)文件的所有字符串
     *
     * @param currentClass 如 this.class
     * @param resourcePath 如 /data/json/xxx.json （相對于resources文件夾）
     */
    public static String resource2String(Class currentClass, String resourcePath) throws IOException {
        return IOUtils.toString(new FileReader(new File(currentClass.getResource(resourcePath).getFile())));
    }
 
}

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