jhprjv2/ruoyi-common/src/main/java/com/ruoyi/common/utils/StringUtils.java

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2023-08-10 21:09:49 +08:00
package com.ruoyi.common.utils;
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import java.util.*;
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import org.springframework.util.AntPathMatcher;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.text.StrFormatter;
/**
*
*
* @author ruoyi
*/
public class StringUtils extends org.apache.commons.lang3.StringUtils
{
/** 空字符串 */
private static final String NULLSTR = "";
/** 下划线 */
private static final char SEPARATOR = '_';
/**
*
*
* @param value defaultValue value
* @return value
*/
public static <T> T nvl(T value, T defaultValue)
{
return value != null ? value : defaultValue;
}
/**
* * Collection ListSetQueue
*
* @param coll Collection
* @return true false
*/
public static boolean isEmpty(Collection<?> coll)
{
return isNull(coll) || coll.isEmpty();
}
/**
* * CollectionListSetQueue
*
* @param coll Collection
* @return true false
*/
public static boolean isNotEmpty(Collection<?> coll)
{
return !isEmpty(coll);
}
/**
* *
*
* @param objects
** @return true false
*/
public static boolean isEmpty(Object[] objects)
{
return isNull(objects) || (objects.length == 0);
}
/**
* *
*
* @param objects
* @return true false
*/
public static boolean isNotEmpty(Object[] objects)
{
return !isEmpty(objects);
}
/**
* * Map
*
* @param map Map
* @return true false
*/
public static boolean isEmpty(Map<?, ?> map)
{
return isNull(map) || map.isEmpty();
}
/**
* * Map
*
* @param map Map
* @return true false
*/
public static boolean isNotEmpty(Map<?, ?> map)
{
return !isEmpty(map);
}
/**
* *
*
* @param str String
* @return true false
*/
public static boolean isEmpty(String str)
{
return isNull(str) || NULLSTR.equals(str.trim());
}
/**
* *
*
* @param str String
* @return true false
*/
public static boolean isNotEmpty(String str)
{
return !isEmpty(str);
}
/**
* *
*
* @param object Object
* @return true false
*/
public static boolean isNull(Object object)
{
return object == null;
}
/**
* *
*
* @param object Object
* @return true false
*/
public static boolean isNotNull(Object object)
{
return !isNull(object);
}
/**
* * Java
*
* @param object
* @return true false
*/
public static boolean isArray(Object object)
{
return isNotNull(object) && object.getClass().isArray();
}
/**
*
*/
public static String trim(String str)
{
return (str == null ? "" : str.trim());
}
/**
*
*
* @param str
* @param start
* @return
*/
public static String substring(final String str, int start)
{
if (str == null)
{
return NULLSTR;
}
if (start < 0)
{
start = str.length() + start;
}
if (start < 0)
{
start = 0;
}
if (start > str.length())
{
return NULLSTR;
}
return str.substring(start);
}
/**
*
*
* @param str
* @param start
* @param end
* @return
*/
public static String substring(final String str, int start, int end)
{
if (str == null)
{
return NULLSTR;
}
if (end < 0)
{
end = str.length() + end;
}
if (start < 0)
{
start = str.length() + start;
}
if (end > str.length())
{
end = str.length();
}
if (start > end)
{
return NULLSTR;
}
if (start < 0)
{
start = 0;
}
if (end < 0)
{
end = 0;
}
return str.substring(start, end);
}
/**
* , {} <br>
* {} <br>
* {} 使 \\ { {} \ 使 \\\\ <br>
* <br>
* 使format("this is {} for {}", "a", "b") -> this is a for b<br>
* {} format("this is \\{} for {}", "a", "b") -> this is \{} for a<br>
* \ format("this is \\\\{} for {}", "a", "b") -> this is \a for b<br>
*
* @param template {}
* @param params
* @return
*/
public static String format(String template, Object... params)
{
if (isEmpty(params) || isEmpty(template))
{
return template;
}
return StrFormatter.format(template, params);
}
/**
* http(s)://开头
*
* @param link
* @return
*/
public static boolean ishttp(String link)
{
return StringUtils.startsWithAny(link, Constants.HTTP, Constants.HTTPS);
}
/**
* set
*
* @param str
* @param sep
* @return set
*/
public static final Set<String> str2Set(String str, String sep)
{
return new HashSet<String>(str2List(str, sep, true, false));
}
/**
* list
*
* @param str
* @param sep
* @param filterBlank
* @param trim
* @return list
*/
public static final List<String> str2List(String str, String sep, boolean filterBlank, boolean trim)
{
List<String> list = new ArrayList<String>();
if (StringUtils.isEmpty(str))
{
return list;
}
// 过滤空白字符串
if (filterBlank && StringUtils.isBlank(str))
{
return list;
}
String[] split = str.split(sep);
for (String string : split)
{
if (filterBlank && StringUtils.isBlank(string))
{
continue;
}
if (trim)
{
string = string.trim();
}
list.add(string);
}
return list;
}
/**
* collectionarray arrayvalue
*
* @param collection
* @param array
* @return boolean
*/
public static boolean containsAny(Collection<String> collection, String... array)
{
if (isEmpty(collection) || isEmpty(array))
{
return false;
}
else
{
for (String str : array)
{
if (collection.contains(str))
{
return true;
}
}
return false;
}
}
/**
*
*
* @param cs
* @param searchCharSequences
* @return
*/
public static boolean containsAnyIgnoreCase(CharSequence cs, CharSequence... searchCharSequences)
{
if (isEmpty(cs) || isEmpty(searchCharSequences))
{
return false;
}
for (CharSequence testStr : searchCharSequences)
{
if (containsIgnoreCase(cs, testStr))
{
return true;
}
}
return false;
}
/**
* 线
*/
public static String toUnderScoreCase(String str)
{
if (str == null)
{
return null;
}
StringBuilder sb = new StringBuilder();
// 前置字符是否大写
boolean preCharIsUpperCase = true;
// 当前字符是否大写
boolean curreCharIsUpperCase = true;
// 下一字符是否大写
boolean nexteCharIsUpperCase = true;
for (int i = 0; i < str.length(); i++)
{
char c = str.charAt(i);
if (i > 0)
{
preCharIsUpperCase = Character.isUpperCase(str.charAt(i - 1));
}
else
{
preCharIsUpperCase = false;
}
curreCharIsUpperCase = Character.isUpperCase(c);
if (i < (str.length() - 1))
{
nexteCharIsUpperCase = Character.isUpperCase(str.charAt(i + 1));
}
if (preCharIsUpperCase && curreCharIsUpperCase && !nexteCharIsUpperCase)
{
sb.append(SEPARATOR);
}
else if ((i != 0 && !preCharIsUpperCase) && curreCharIsUpperCase)
{
sb.append(SEPARATOR);
}
sb.append(Character.toLowerCase(c));
}
return sb.toString();
}
/**
*
*
* @param str
* @param strs
* @return true
*/
public static boolean inStringIgnoreCase(String str, String... strs)
{
if (str != null && strs != null)
{
for (String s : strs)
{
if (str.equalsIgnoreCase(trim(s)))
{
return true;
}
}
}
return false;
}
/**
* 线线 HELLO_WORLD->HelloWorld
*
* @param name 线
* @return
*/
public static String convertToCamelCase(String name)
{
StringBuilder result = new StringBuilder();
// 快速检查
if (name == null || name.isEmpty())
{
// 没必要转换
return "";
}
else if (!name.contains("_"))
{
// 不含下划线,仅将首字母大写
return name.substring(0, 1).toUpperCase() + name.substring(1);
}
// 用下划线将原始字符串分割
String[] camels = name.split("_");
for (String camel : camels)
{
// 跳过原始字符串中开头、结尾的下换线或双重下划线
if (camel.isEmpty())
{
continue;
}
// 首字母大写
result.append(camel.substring(0, 1).toUpperCase());
result.append(camel.substring(1).toLowerCase());
}
return result.toString();
}
/**
*
* user_name->userName
*/
public static String toCamelCase(String s)
{
if (s == null)
{
return null;
}
if (s.indexOf(SEPARATOR) == -1)
{
return s;
}
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();
}
/**
*
*
* @param str
* @param strs
* @return
*/
public static boolean matches(String str, List<String> strs)
{
if (isEmpty(str) || isEmpty(strs))
{
return false;
}
for (String pattern : strs)
{
if (isMatch(pattern, str))
{
return true;
}
}
return false;
}
/**
* url:
* ? ;
* * ;
* ** ;
*
* @param pattern
* @param url url
* @return
*/
public static boolean isMatch(String pattern, String url)
{
AntPathMatcher matcher = new AntPathMatcher();
return matcher.match(pattern, url);
}
@SuppressWarnings("unchecked")
public static <T> T cast(Object obj)
{
return (T) obj;
}
/**
* 0使size size
*
* @param num
* @param size
* @return
*/
public static final String padl(final Number num, final int size)
{
return padl(num.toString(), size, '0');
}
/**
* ssizesize
*
* @param s
* @param size
* @param c
* @return
*/
public static final String padl(final String s, final int size, final char c)
{
final StringBuilder sb = new StringBuilder(size);
if (s != null)
{
final int len = s.length();
if (s.length() <= size)
{
for (int i = size - len; i > 0; i--)
{
sb.append(c);
}
sb.append(s);
}
else
{
return s.substring(len - size, len);
}
}
else
{
for (int i = size; i > 0; i--)
{
sb.append(c);
}
}
return sb.toString();
}
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private static final String CHARACTERS = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890";
/**
*
*
* @param length
* @return
*/
public static String randomString(int length) {
if (length < 1) {
length = 1;
}
StringBuilder sb = new StringBuilder();
Random random = new Random();
for (int i = 0; i < length; i++) {
int randomIndex = random.nextInt(CHARACTERS.length());
char randomChar = CHARACTERS.charAt(randomIndex);
sb.append(randomChar);
}
String randomString = sb.toString();
return randomString;
}
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}