需要引用一个maven
<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.5</version>
</dependency>
方法为:
StringEscapeUtils.unescapeHtml3(URLDecoder.decode(data,"utf-8"))