cn.ipokerface.weixin.utils.RegexUtil Maven / Gradle / Ivy
package cn.ipokerface.weixin.utils;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Created by PokerFace
* Create Date 2019-12-27.
* Email: [email protected]
* Version 1.0.0
*
* Description:
*/
public class RegexUtil {
/**
* Content-disposition 中的 filename提取正则
*/
private static final Pattern FILENAME_RGX = Pattern
.compile("(?<=filename=\").*?(?=\")");
/**
* 从 Content-disposition提取文件名
*
* @param contentDisposition
* @return
*/
public static String regexFileNameFromContentDispositionHeader(
String contentDisposition) {
if (StringUtil.isBlank(contentDisposition)) {
return null;
}
Matcher filenameMatcher = FILENAME_RGX.matcher(contentDisposition);
return filenameMatcher.find() ? filenameMatcher.group() : null;
}
}