fix 修复升级合并错误

ruoyi-common/src/main/java/com/ruoyi/common/utils/StringUtils.java

@@ -0,0 +1,28 @@
+package com.ruoyi.common.utils;
+
+import cn.hutool.core.util.StrUtil;
+import com.ruoyi.common.constant.Constants;
+
+/**
+ * 字符串工具类
+ *
+ * @author ruoyi
+ */
+public class StringUtils extends org.apache.commons.lang3.StringUtils {
+	/** 空字符串 */
+	private static final String NULLSTR = "";
+
+	/** 下划线 */
+	private static final char SEPARATOR = '_';
+
+	/**
+	 * 是否为http(s)://开头
+	 *
+	 * @param link 链接
+	 * @return 结果
+	 */
+	public static boolean ishttp(String link) {
+		return StrUtil.startWithAny(link, Constants.HTTP, Constants.HTTPS);
+	}
+
+}