在纯Java代码中输出HTML时，是否有一种推荐的方法来转义<，>，"和&字符?(除了手动执行以下操作之外)。
String source = "The less than sign (<) and ampersand (&) must be escaped before using them in HTML";
String escaped = source.replace("<", "<").replace("&", "&"); // ...
当前回答
对于使用谷歌番石榴的人:
import com.google.common.html.HtmlEscapers;
[...]
String source = "The less than sign (<) and ampersand (&) must be escaped before using them in HTML";
String escaped = HtmlEscapers.htmlEscaper().escape(source);
其他回答
StringEscapeUtils from Apache Commons Lang:
import static org.apache.commons.lang.StringEscapeUtils.escapeHtml;
// ...
String source = "The less than sign (<) and ampersand (&) must be escaped before using them in HTML";
String escaped = escapeHtml(source);
版本3:
import static org.apache.commons.lang3.StringEscapeUtils.escapeHtml4;
// ...
String escaped = escapeHtml4(source);
Apache Commons的替代方案:使用Spring的htmltils。htmlEscape(字符串输入)方法。
在android (API 16或更高版本)上，您可以:
Html.escapeHtml(textToScape);
或低空气污染指数:
TextUtils.htmlEncode(textToScape);
对于使用谷歌番石榴的人:
import com.google.common.html.HtmlEscapers;
[...]
String source = "The less than sign (<) and ampersand (&) must be escaped before using them in HTML";
String escaped = HtmlEscapers.htmlEscaper().escape(source);
出于某些目的，htmltils:
import org.springframework.web.util.HtmlUtils;
[...]
HtmlUtils.htmlEscapeDecimal("&"); //gives &
HtmlUtils.htmlEscape("&"); //gives &
