在Java中轻松将HTML格式文本转换为纯文本(保留换行)

曾经终败给现在 2023-07-24 14:51 12阅读 0赞

### 第一步：引入Jsoup和lang和lang3的依赖： ###

Jsoup是HTML解析器  
lang和lang3这两个包里有转换所需的工具类

<dependency>
    	<groupId>org.jsoup</groupId>
    	<artifactId>jsoup</artifactId>
    	<version>1.11.3</version>
    </dependency>
    <dependency>
    	<groupId>commons-lang</groupId>
    	<artifactId>commons-lang</artifactId>
    	<version>2.6</version>
    </dependency>
    <dependency>
    	<groupId>org.apache.commons</groupId>
    	<artifactId>commons-lang3</artifactId>
    	<version>3.4</version>
    </dependency>

### 第二步：直接使用即可： ###

import org.apache.commons.lang.StringEscapeUtils;
    import org.apache.commons.lang3.StringUtils;
    import org.jsoup.Jsoup;
    import org.jsoup.nodes.Document;
    import org.jsoup.safety.Whitelist;
    
    /**
     * @author Piconjo
     */
    public class Html2PlainText {
        
        public static String convert(String html)
        {
        
            if (StringUtils.isEmpty(html))
            {
        
                return "";
            }
    
            Document document = Jsoup.parse(html);
            Document.OutputSettings outputSettings = new Document.OutputSettings().prettyPrint(false);
            document.outputSettings(outputSettings);
            document.select("br").append("\\n");
            document.select("p").prepend("\\n");
            document.select("p").append("\\n");
            String newHtml = document.html().replaceAll("\\\\n", "\n");
            String plainText = Jsoup.clean(newHtml, "", Whitelist.none(), outputSettings);
            String result = StringEscapeUtils.unescapeHtml(plainText.trim());
            return result;
        }
    }

#### 使用测试： ####

![在这里插入图片描述][20200412184108381.png]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1BpY29uam8_size_16_color_FFFFFF_t_70]

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[20200412184108381.png]: /images/20230528/2c9f4089dfca4c6f966b04374b70f408.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1BpY29uam8_size_16_color_FFFFFF_t_70]: /images/20230528/ef57f2219ef9412fb393874fc835f1e6.png