HTML字符Java转义 |"|&|<|>等

        
            org.apache.commons
            commons-lang3
            
            x.x
        

import org.apache.commons.lang3.StringEscapeUtils;

public class HtmlTest {
    public static void main(String[] args) {
        String str = " "&<>";
        System.out.println(StringEscapeUtils.unescapeHtml3(str));
    }
}

结果：