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243
fys-common/src/main/java/com/fuyuanshen/utils/StringUtils.java
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243
fys-common/src/main/java/com/fuyuanshen/utils/StringUtils.java
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/*
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* Copyright 2019-2025 Zheng Jie
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.fuyuanshen.utils;
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import cn.hutool.http.useragent.UserAgent;
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import cn.hutool.http.useragent.UserAgentUtil;
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import lombok.extern.slf4j.Slf4j;
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import net.dreamlu.mica.ip2region.core.Ip2regionSearcher;
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import net.dreamlu.mica.ip2region.core.IpInfo;
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import javax.servlet.http.HttpServletRequest;
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import java.lang.reflect.Field;
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import java.net.InetAddress;
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import java.net.NetworkInterface;
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import java.net.UnknownHostException;
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import java.util.*;
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/**
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* @author Zheng Jie
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* 字符串工具类, 继承org.apache.commons.lang3.StringUtils类
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*/
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@Slf4j
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public class StringUtils extends org.apache.commons.lang3.StringUtils {
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private static final char SEPARATOR = '_';
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private static final String UNKNOWN = "unknown";
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/**
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* 注入bean
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*/
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private final static Ip2regionSearcher IP_SEARCHER = SpringBeanHolder.getBean(Ip2regionSearcher.class);
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/**
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* 驼峰命名法工具
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*
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* @return toCamelCase(" hello_world ") == "helloWorld"
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* toCapitalizeCamelCase("hello_world") == "HelloWorld"
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* toUnderScoreCase("helloWorld") = "hello_world"
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*/
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public static String toCamelCase(String s) {
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if (s == null) {
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return null;
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}
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s = s.toLowerCase();
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StringBuilder sb = new StringBuilder(s.length());
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boolean upperCase = false;
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for (int i = 0; i < s.length(); i++) {
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char c = s.charAt(i);
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if (c == SEPARATOR) {
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upperCase = true;
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} else if (upperCase) {
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sb.append(Character.toUpperCase(c));
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upperCase = false;
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} else {
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sb.append(c);
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}
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}
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return sb.toString();
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}
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/**
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* 驼峰命名法工具
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*
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* @return toCamelCase(" hello_world ") == "helloWorld"
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* toCapitalizeCamelCase("hello_world") == "HelloWorld"
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* toUnderScoreCase("helloWorld") = "hello_world"
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*/
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public static String toCapitalizeCamelCase(String s) {
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if (s == null) {
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return null;
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}
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s = toCamelCase(s);
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return s.substring(0, 1).toUpperCase() + s.substring(1);
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}
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/**
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* 驼峰命名法工具
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*
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* @return toCamelCase(" hello_world ") == "helloWorld"
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* toCapitalizeCamelCase("hello_world") == "HelloWorld"
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* toUnderScoreCase("helloWorld") = "hello_world"
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*/
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static String toUnderScoreCase(String s) {
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if (s == null) {
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return null;
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}
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StringBuilder sb = new StringBuilder();
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boolean upperCase = false;
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for (int i = 0; i < s.length(); i++) {
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char c = s.charAt(i);
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boolean nextUpperCase = true;
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if (i < (s.length() - 1)) {
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nextUpperCase = Character.isUpperCase(s.charAt(i + 1));
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}
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if ((i > 0) && Character.isUpperCase(c)) {
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if (!upperCase || !nextUpperCase) {
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sb.append(SEPARATOR);
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}
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upperCase = true;
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} else {
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upperCase = false;
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}
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sb.append(Character.toLowerCase(c));
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}
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return sb.toString();
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}
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/**
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* 获取ip地址
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*/
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public static String getIp(HttpServletRequest request) {
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String ip = request.getHeader("x-forwarded-for");
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if (ip == null || ip.isEmpty() || UNKNOWN.equalsIgnoreCase(ip)) {
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ip = request.getHeader("Proxy-Client-IP");
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}
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if (ip == null || ip.isEmpty() || UNKNOWN.equalsIgnoreCase(ip)) {
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ip = request.getHeader("WL-Proxy-Client-IP");
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}
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if (ip == null || ip.isEmpty() || UNKNOWN.equalsIgnoreCase(ip)) {
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ip = request.getRemoteAddr();
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}
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String comma = ",";
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String localhost = "127.0.0.1";
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if (ip.contains(comma)) {
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ip = ip.split(",")[0];
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}
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if (localhost.equals(ip)) {
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// 获取本机真正的ip地址
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try {
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ip = InetAddress.getLocalHost().getHostAddress();
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} catch (UnknownHostException e) {
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log.error(e.getMessage(), e);
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}
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}
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return ip;
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}
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/**
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* 根据ip获取详细地址
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*/
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public static String getCityInfo(String ip) {
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IpInfo ipInfo = IP_SEARCHER.memorySearch(ip);
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if(ipInfo != null){
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return ipInfo.getAddress();
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}
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return null;
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}
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/**
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* 获取浏览器
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*/
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public static String getBrowser(HttpServletRequest request) {
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UserAgent ua = UserAgentUtil.parse(request.getHeader("User-Agent"));
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String browser = ua.getBrowser().toString() + " " + ua.getVersion();
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return browser.replace(".0.0.0","");
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}
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/**
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* 获得当天是周几
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*/
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public static String getWeekDay() {
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String[] weekDays = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
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Calendar cal = Calendar.getInstance();
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cal.setTime(new Date());
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int w = cal.get(Calendar.DAY_OF_WEEK) - 1;
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if (w < 0) {
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w = 0;
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}
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return weekDays[w];
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}
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/**
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* 获取当前机器的IP
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*
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* @return /
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*/
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public static String getLocalIp() {
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try {
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InetAddress candidateAddress = null;
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// 遍历所有的网络接口
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for (Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces(); interfaces.hasMoreElements();) {
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NetworkInterface anInterface = interfaces.nextElement();
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// 在所有的接口下再遍历IP
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for (Enumeration<InetAddress> inetAddresses = anInterface.getInetAddresses(); inetAddresses.hasMoreElements();) {
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InetAddress inetAddr = inetAddresses.nextElement();
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// 排除loopback类型地址
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if (!inetAddr.isLoopbackAddress()) {
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if (inetAddr.isSiteLocalAddress()) {
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// 如果是site-local地址，就是它了
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return inetAddr.getHostAddress();
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} else if (candidateAddress == null) {
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// site-local类型的地址未被发现，先记录候选地址
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candidateAddress = inetAddr;
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}
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}
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}
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}
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if (candidateAddress != null) {
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return candidateAddress.getHostAddress();
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}
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// 如果没有发现 non-loopback地址.只能用最次选的方案
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InetAddress jdkSuppliedAddress = InetAddress.getLocalHost();
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if (jdkSuppliedAddress == null) {
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return "";
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}
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return jdkSuppliedAddress.getHostAddress();
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} catch (Exception e) {
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return "";
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}
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}
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@SuppressWarnings({"unchecked","all"})
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public static List<Field> getAllFields(Class clazz, List<Field> fields) {
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if (clazz != null) {
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fields.addAll(Arrays.asList(clazz.getDeclaredFields()));
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getAllFields(clazz.getSuperclass(), fields);
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}
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return fields;
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}
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}
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