com.xkcoding.http.util.StringUtil Maven / Gradle / Ivy
/*
* Copyright (c) 2019-2029, xkcoding & Yangkai.Shen & 沈扬凯 ([email protected] & xkcoding.com).
*
* Licensed under the GNU LESSER GENERAL PUBLIC LICENSE 3.0;
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.gnu.org/licenses/lgpl.html
*
* 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.xkcoding.http.util;
import lombok.experimental.UtilityClass;
/**
*
* 字符串工具类
*
*
* @author yangkai.shen
* @date Created in 2019/12/24 22:51
*/
@UtilityClass
public class StringUtil {
public boolean isEmpty(String str) {
return null == str || str.trim().isEmpty();
}
public boolean isNotEmpty(String str) {
return !isEmpty(str);
}
/**
* 如果给定字符串{@code str}中不包含{@code appendStr}，则在{@code str}后追加{@code appendStr}；
* 如果已包含{@code appendStr}，则在{@code str}后追加{@code otherwise}
*
* @param str 给定的字符串
* @param appendStr 需要追加的内容
* @param otherwise 当{@code appendStr}不满足时追加到{@code str}后的内容
* @return 追加后的字符串
*/
public String appendIfNotContain(String str, String appendStr, String otherwise) {
if (isEmpty(str) || isEmpty(appendStr)) {
return str;
}
if (str.contains(appendStr)) {
return str.concat(otherwise);
}
return str.concat(appendStr);
}
}