com.zyy.common.util.StringUtils Maven / Gradle / Ivy
package com.zyy.common.util;
import com.google.common.collect.Lists;
import org.apache.commons.lang3.StringEscapeUtils;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.servlet.LocaleResolver;
import javax.persistence.Column;
import javax.persistence.Id;
import javax.servlet.http.HttpServletRequest;
import java.io.UnsupportedEncodingException;
import java.lang.reflect.Field;
import java.util.List;
import java.util.Locale;
import java.util.StringTokenizer;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* 字符串工具类, 继承org.apache.commons.lang3.StringUtils类
*
* @author jia.song
* @version 2020-1-15
*/
public class StringUtils extends org.apache.commons.lang3.StringUtils {
private static final char SEPARATOR = '_';
private static final String CHARSET_NAME = "UTF-8";
/**
* 正则表达式：验证手机号
*/
public static final String REGEX_MOBILE = "^((17[0-9])|(14[0-9])|(13[0-9])|(15[0-9])|(16[0-9])|(19[0-9])|(18[0-9]))\\d{8}$";
/**
* 正则表达式：验证邮箱
*/
public static final String REGEX_EMAIL = "^([a-z0-9A-Z]+[-|\\.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?\\.)+[a-zA-Z]{2,}$";
/**
* 转换为字节数组
*
* @param str 字符串
* @return if null return null
*/
public static byte[] getBytes(String str) {
if (str != null) {
try {
return str.getBytes(CHARSET_NAME);
} catch (UnsupportedEncodingException e) {
return null;
}
} else {
return null;
}
}
/**
* 是否包含字符串
*
* @param str 验证字符串
* @param strs 字符串组
* @return 包含返回true
*/
public static boolean inString(String str, String... strs) {
if (str != null) {
for (String s : strs) {
if (str.equals(trim(s))) {
return true;
}
}
}
return false;
}
/**
* 转换为Double类型
*/
public static Double toDouble(Object val) {
if (val == null) {
return 0D;
}
try {
return Double.valueOf(trim(val.toString()));
} catch (Exception e) {
return 0D;
}
}
/**
* 转换为Float类型
*/
public static Float toFloat(Object val) {
return toDouble(val).floatValue();
}
/**
* 转换为Long类型
*/
public static Long toLong(Object val) {
return toDouble(val).longValue();
}
/**
* 转换为Integer类型
*/
public static Integer toInteger(Object val) {
return toLong(val).intValue();
}
/**
* 获得用户远程地址
*/
public static String getRemoteAddr(HttpServletRequest request) {
String remoteAddr = request.getHeader("X-Real-IP");
if (isNotBlank(remoteAddr)) {
remoteAddr = request.getHeader("X-Forwarded-For");
} else if (isNotBlank(remoteAddr)) {
remoteAddr = request.getHeader("Proxy-Client-IP");
} else if (isNotBlank(remoteAddr)) {
remoteAddr = request.getHeader("WL-Proxy-Client-IP");
}
return remoteAddr != null ? remoteAddr : request.getRemoteAddr();
}
/**
* 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"
*/
public 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();
}
/**
* 如果不为空，则设置值
*
* @param target 初始值
* @param source 目标值
*/
public static void setValueIfNotBlank(String target, String source) {
if (isNotBlank(source)) {
target = source;
}
}
/**
* 计算指定分隔符分隔后的字符串个数
*
* @param source 要分隔的字符串
* @param separator 分隔位字符串
* @return 分隔后的字符串个数
*/
public static int getSplitCount(String source, String separator) {
if (source == null || separator == null) {
return 0;
}
StringTokenizer stringTokenizer = new StringTokenizer(source, separator);
return stringTokenizer.countTokens();
}
/**
* 校验手机号
*
* @param mobile 手机号
* @return 校验通过返回true，否则返回false
*/
public static boolean isMobile(String mobile) {
return Pattern.matches(REGEX_MOBILE, mobile);
}
/**
* 校验邮箱
*
* @param email 邮箱
* @return 校验通过返回true，否则返回false
*/
public static boolean isEmail(String email) {
return Pattern.matches(REGEX_EMAIL, email);
}
/**
* 实体类转换
*
* @param clazz 反射
* @return 建表语句
*/
public static String beanToSql(Class clazz) {
StringBuilder builder = new StringBuilder("CREATE TABLE ");
builder.append("`").append(clazz.getSimpleName().toLowerCase()).append("` (\n");
for (Field field : clazz.getDeclaredFields()) {
field.setAccessible(true);
Id id = field.getAnnotation(Id.class);
Column column = field.getAnnotation(Column.class);
builder.append("`").append(StringUtils.toUnderScoreCase(field.getName())).append("` ");
String simpleName = field.getType().getSimpleName();
if (simpleName.equalsIgnoreCase("date")) {
builder.append("datetime ");
} else if (simpleName.equalsIgnoreCase("integer")) {
if (column.length() == 1) {
builder.append("tinyint(1) ");
} else {
builder.append("int(").append(column.length()).append(") ");
}
} else if (simpleName.equalsIgnoreCase("long")) {
builder.append("long(").append(column.length()).append(") ");
} else {
builder.append("varchar(").append(column.length()).append(") ");
}
if (id != null) {
builder.append("NOT NULL COMMENT '',\nPRIMARY KEY (`").append(StringUtils.toUnderScoreCase(field.getName())).append("`) USING BTREE,\n");
} else {
builder.append("DEFAULT NULL COMMENT '',\n");
}
}
builder.deleteCharAt(builder.length() - 2);
builder.append(")ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;");
return builder.toString();
}
/**
* Convert byte[] to hex string
*
* @param src byte[] data
* @return hex string
*/
public static String bytesToHexString(byte[] src) {
StringBuilder stringBuilder = new StringBuilder("");
if (src == null || src.length <= 0) {
return "";
}
for (byte b : src) {
int v = b & 0xFF;
String hv = Integer.toHexString(v);
if (hv.length() < 2) {
stringBuilder.append(0);
}
stringBuilder.append(hv);
}
return stringBuilder.toString();
}
/**
* Convert byte[] to hex string
*
* @param hexString String data
* @return hex string
*/
public static byte[] hexStringToBytes(String hexString) {
if (hexString == null || hexString.equals("")) {
return null;
}
hexString = hexString.toUpperCase();
int length = hexString.length() / 2;
char[] hexChars = hexString.toCharArray();
byte[] d = new byte[length];
for (int i = 0; i < length; i++) {
int pos = i * 2;
d[i] = (byte) (charToByte(hexChars[pos]) << 4 | charToByte(hexChars[pos + 1]));
}
return d;
}
private static byte charToByte(char c) {
return (byte) "0123456789ABCDEF".indexOf(c);
}
// 手机号码前三后四脱敏
public static String mobileEncrypt(String mobile) {
if (StringUtils.isEmpty(mobile) || (mobile.length() != 11)) {
return mobile;
}
return mobile.replaceAll("(\\d{3})\\d{4}(\\d{4})", "$1****$2");
}
//身份证前三后四脱敏
public static String idEncrypt(String id) {
if (StringUtils.isEmpty(id) || (id.length() < 8)) {
return id;
}
return id.replaceAll("(?<=\\w{3})\\w(?=\\w{4})", "*");
}
//护照前2后3位脱敏，护照一般为8或9位
public static String idPassport(String id) {
if (StringUtils.isEmpty(id) || (id.length() < 8)) {
return id;
}
return id.substring(0, 2) + new String(new char[id.length() - 5]).replace("\0", "*") + id.substring(id.length() - 3);
}
}