com.wl4g.component.common.web.UrlUtils Maven / Gradle / Ivy
/*
* Copyright 2017 ~ 2025 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.wl4g.component.common.web;
import java.util.regex.Pattern;
/**
* Provides static methods for composing URLs.
*
* Placed into a separate class for visibility, so that changes to URL
* formatting conventions will affect all users.
*
* @author Wangl.sir
* @author Ben Alex
* @version v1.0 2020年4月27日
* @since
*/
public abstract class UrlUtils extends WebUtils2 {
/**
* Decides if a URL is absolute based on whether it contains a valid scheme
* name, as defined in RFC 1738.
*/
public static boolean isAbsoluteUrl(String url) {
if (url == null) {
return false;
}
return ABSOLUTE_URL.matcher(url).matches();
}
private static final Pattern ABSOLUTE_URL = Pattern.compile("\\A[a-z0-9.+-]+://.*", Pattern.CASE_INSENSITIVE);
}