RequestStringUtils.java
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package com.canrd.webmagic.common.utils;
import cn.hutool.core.io.resource.ClassPathResource;
import com.canrd.webmagic.common.constant.ElAdminConstant;
import eu.bitwalker.useragentutils.Browser;
import eu.bitwalker.useragentutils.UserAgent;
import org.lionsoul.ip2region.DataBlock;
import org.lionsoul.ip2region.DbConfig;
import org.lionsoul.ip2region.DbSearcher;
import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Method;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Calendar;
import java.util.Date;
/**
* 字符串工具类, 继承org.apache.commons.lang3.StringUtils类
*/
public class RequestStringUtils extends org.apache.commons.lang3.StringUtils {
private static final char SEPARATOR = '_';
private static final String UNKNOWN = "unknown";
/**
* 驼峰命名法工具
*
* @return toCamelCase(" hello_world ") == "helloWorld"
* toCapitalizeCamelCase("hello_world") == "HelloWorld"
* toUnderScoreCase("helloWorld") = "hello_world"
*/
public static String toCamelCase(String s) {
if (s == null) {
return null;
}
s = s.toLowerCase();
StringBuilder sb = new StringBuilder(s.length());
boolean upperCase = false;
for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i);
if (c == SEPARATOR) {
upperCase = true;
} else if (upperCase) {
sb.append(Character.toUpperCase(c));
upperCase = false;
} else {
sb.append(c);
}
}
return sb.toString();
}
/**
* 驼峰命名法工具
*
* @return toCamelCase(" hello_world ") == "helloWorld"
* toCapitalizeCamelCase("hello_world") == "HelloWorld"
* toUnderScoreCase("helloWorld") = "hello_world"
*/
public static String toCapitalizeCamelCase(String s) {
if (s == null) {
return null;
}
s = toCamelCase(s);
return s.substring(0, 1).toUpperCase() + s.substring(1);
}
/**
* 驼峰命名法工具
*
* @return toCamelCase(" hello_world ") == "helloWorld"
* toCapitalizeCamelCase("hello_world") == "HelloWorld"
* toUnderScoreCase("helloWorld") = "hello_world"
*/
static String toUnderScoreCase(String s) {
if (s == null) {
return null;
}
StringBuilder sb = new StringBuilder();
boolean upperCase = false;
for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i);
boolean nextUpperCase = true;
if (i < (s.length() - 1)) {
nextUpperCase = Character.isUpperCase(s.charAt(i + 1));
}
if ((i > 0) && Character.isUpperCase(c)) {
if (!upperCase || !nextUpperCase) {
sb.append(SEPARATOR);
}
upperCase = true;
} else {
upperCase = false;
}
sb.append(Character.toLowerCase(c));
}
return sb.toString();
}
/**
* 获取ip地址
*/
public static String getIp(HttpServletRequest request) {
String ip = request.getHeader("x-forwarded-for");
if (ip == null || ip.length() == 0 || UNKNOWN.equalsIgnoreCase(ip)) {
ip = request.getHeader("Proxy-Client-IP");
}
if (ip == null || ip.length() == 0 || UNKNOWN.equalsIgnoreCase(ip)) {
ip = request.getHeader("WL-Proxy-Client-IP");
}
if (ip == null || ip.length() == 0 || UNKNOWN.equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
}
String comma = ",";
String localhost = "127.0.0.1";
if (ip.contains(comma)) {
ip = ip.split(",")[0];
}
if (localhost.equals(ip)) {
// 获取本机真正的ip地址
try {
ip = InetAddress.getLocalHost().getHostAddress();
} catch (UnknownHostException e) {
e.printStackTrace();
}
}
return ip;
}
/**
* 根据ip获取详细地址
*/
public static String getCityInfo(String ip) {
DbSearcher searcher = null;
try {
String path = "ip2region/ip2region.db";
String name = "ip2region.db";
DbConfig config = new DbConfig();
File file = FileUtil.inputStreamToFile(new ClassPathResource(path).getStream(), name);
searcher = new DbSearcher(config, file.getPath());
Method method;
method = searcher.getClass().getMethod("btreeSearch", String.class);
DataBlock dataBlock;
dataBlock = (DataBlock) method.invoke(searcher, ip);
String address = dataBlock.getRegion().replace("0|", "");
char symbol = '|';
if (address.charAt(address.length() - 1) == symbol) {
address = address.substring(0, address.length() - 1);
}
return address.equals(ElAdminConstant.REGION) ? "内网IP" : address;
} catch (Exception e) {
e.printStackTrace();
} finally {
if (searcher != null) {
try {
searcher.close();
} catch (IOException ignored) {
}
}
}
return "";
}
public static String getBrowser(HttpServletRequest request) {
UserAgent userAgent = UserAgent.parseUserAgentString(request.getHeader("User-Agent"));
Browser browser = userAgent.getBrowser();
return browser.getName();
}
/**
* 获得当天是周几
*/
public static String getWeekDay() {
String[] weekDays = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
int w = cal.get(Calendar.DAY_OF_WEEK) - 1;
if (w < 0) {
w = 0;
}
return weekDays[w];
}
}