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java 常用工具类,作为 apache-commons的补充
package com.centit.support.algorithm;
import org.apache.commons.lang3.StringUtils;
import java.util.Calendar;
import java.util.regex.Pattern;
@SuppressWarnings("unused")
public abstract class StringRegularOpt {
private StringRegularOpt() {
throw new IllegalAccessError("Utility class");
}
public static String trimString(String szWord) {
if (szWord == null)
return "";
String strWord = szWord.trim();
int sl = strWord.length();
if (sl >= 2 && ((strWord.charAt(0) == '\"' && strWord.charAt(sl - 1) == '\"') ||
(strWord.charAt(0) == '\'' && strWord.charAt(sl - 1) == '\''))) {
if (sl > 2)
strWord = strWord.substring(1, sl - 1);
else
strWord = "";
}
return strWord;
}
public static String trimStringQuoted(String szWord) {
return trimString(szWord);
}
public static String quotedString(String szWord) {
if (szWord == null)
return "\"\"";
return "\"" + StringUtils.replace(szWord.trim(), "\"", "'") + "\"";
}
/**
* 判断 一个字符串是否为 双子节 字符，比如 中文、日语、韩文等等
*
* @param letter char
* @return true or false
*/
public static boolean isDoubleByteChar(char letter) {
return (letter / 0x80) != 0;
}
public static boolean isDigit(String pszNum) {
return StringUtils.isNumeric(pszNum);
}
public static boolean isNumber(String szNum) {
//String szNum = trimString(pszNum);
int sl = szNum.length();
if (sl < 1) return false;
int sp = 0;
while (sp < sl && (szNum.charAt(sp) == ' ' || szNum.charAt(sp) == 9)) sp++;
if (sp < sl && (szNum.charAt(sp) == '-' || szNum.charAt(sp) == '+')) sp++;
if (sp == sl || (sp + 1 == sl && szNum.charAt(sp) == '.')) return false;//
while (sp < sl) {
if (szNum.charAt(sp) >= '0' && szNum.charAt(sp) <= '9') {
sp++;
continue;
}
if (szNum.charAt(sp) == '.') {
sp++;
break;
}
return false;
}
//if ((sp==sl) && (sl>1) && (szNum.charAt(sp-1)!='.') && (szNum.charAt(0)=='0')) return false;;
while (sp < sl) {
if (szNum.charAt(sp) >= '0' && szNum.charAt(sp) <= '9') {
sp++;
} else
return false;
}
return true;
}
public static boolean isString(String szWord) {
if (szWord == null)
return false;
String strWord = szWord.trim();
int sl = strWord.length();
return (sl >= 2 && ((strWord.charAt(0) == '\"' && strWord.charAt(sl - 1) == '\"') ||
(strWord.charAt(0) == '\'' && strWord.charAt(sl - 1) == '\'')));
}
/**
* 判断字符串是否为空(null || ""),是：true,否：false
* 和StringUtils中的isBlank等价 建议使用 StringUtils.isBlank
*
* @param str str
* @return boolean 字符串是否为空
* @see org.apache.commons.lang3.StringUtils
*/
public static boolean isNvl(String str) {
return (str == null) || "".equals(str.trim());
}
public static boolean isTrue(String str) {
/**
* //SONAR 检查不通过，但是这个是对的，式作为常量的加速判断
*/
if (str == null) {
return false;
}
if (StringUtils.equalsAnyIgnoreCase(str, "y", "yes", "t", "true", "on")) {
return true;
}
if (!isNumber(str)) {
return false;
}
long bRes = Math.round(Double.valueOf(str));
return bRes != 0;
}
public static boolean isFalse(String str) {
/**
* //SONAR 检查不通过，但是这个是对的，式作为常量的加速判断
*/
if (str == null) {
return false;
}
if (StringUtils.equalsAnyIgnoreCase(str, "n", "no", "f", "false", "off")) {
return true;
}
if (!isNumber(str)) {
return false;
}
long bRes = Math.round(Double.valueOf(str));
return bRes == 0;
}
public static boolean isDatetime(String szTime, Calendar t_time) {
if (szTime == null)
return false;
//t_time.setTime(time)
int sl = szTime.length();
int sp = 0;
int s = 0;
String c = "";
int y, m, d, h, min, sec;
while (sp < sl && (szTime.charAt(sp) < '0' || szTime.charAt(sp) > '9')) sp++;
while (sp < sl) {
if (szTime.charAt(sp) >= '0' && szTime.charAt(sp) <= '9') {
if (s < 4)
c += szTime.charAt(sp);
sp++;
s++;
continue;
}
//if(szTime[sp] == '-')
sp++;
break;
}//check year
y = Integer.valueOf(c);
if (y < 1970 || y > 2038) return false;
while (sp < sl && (szTime.charAt(sp) < '0' || szTime.charAt(sp) > '9')) sp++;
s = 0;
c = "";
while (sp < sl) {
if (szTime.charAt(sp) >= '0' && szTime.charAt(sp) <= '9') {
if (s < 2)
c += szTime.charAt(sp);
sp++;
s++;
continue;
}
//if(szTime.charAt(sp) == '-')
sp++;
break;
}//check month
if (s > 2) return false;
m = Integer.valueOf(c);
if (m < 1 || m > 12) return false;
while (sp < sl && (szTime.charAt(sp) < '0' || szTime.charAt(sp) > '9')) sp++;
s = 0;
c = "";
while (sp < sl) {
if (szTime.charAt(sp) >= '0' && szTime.charAt(sp) <= '9') {
if (s < 2) c += szTime.charAt(sp);
sp++;
s++;
continue;
}
//if(szTime.charAt(sp) == '-')
sp++;
break;
}//check day
if (s > 2) return false;
d = Integer.valueOf(c);
if (d < 1 || d > 31) return false;
while (sp < sl && (szTime.charAt(sp) < '0' || szTime.charAt(sp) > '9')) sp++;
s = 0;
c = "";
while (sp < sl) {
if (szTime.charAt(sp) >= '0' && szTime.charAt(sp) <= '9') {
if (s < 2) c += szTime.charAt(sp);
sp++;
s++;
continue;
}
//if(szTime.charAt(sp) == ':')
sp++;
break;
}//check hour
if (s > 2) return false;
h = Integer.valueOf(c);
if (h < 0 || h > 24) return false;
while (sp < sl && (szTime.charAt(sp) < '0' || szTime.charAt(sp) > '9')) sp++;
s = 0;
c = "";
while (sp < sl) {
if (szTime.charAt(sp) >= '0' && szTime.charAt(sp) <= '9') {
if (s < 2) c += szTime.charAt(sp);
sp++;
s++;
continue;
}
//if(szTime.charAt(sp) == ':')
sp++;
break;
}//check minute
if (s > 2) return false;
min = Integer.valueOf(c);
if (min < 0 || min > 60) return false;
s = 0;
c = "";
while (sp < sl && (szTime.charAt(sp) < '0' || szTime.charAt(sp) > '9')) sp++;
while (sp < sl) {
if (szTime.charAt(sp) >= '0' && szTime.charAt(sp) <= '9') {
if (s < 2) c += szTime.charAt(sp);
sp++;
s++;
continue;
}
break;
}//check second
if (s > 2) return false;
sec = Integer.valueOf(c);
if (sec < 0 || sec > 60) return false;
t_time.set(y, m, d, h, min, sec);
return true;
}
public static boolean isDatetime(String szTime) {
Calendar t_time = Calendar.getInstance();
boolean b = isDatetime(szTime, t_time);
return b;
}
public static boolean isDate(String szTime, Calendar t_time) {
if (szTime == null)
return false;
//t_time.setTime(time)
int sl = szTime.length();
int sp = 0;
int s = 0;
String c = "";
int y, m, d;
while (sp < sl && (szTime.charAt(sp) < '0' || szTime.charAt(sp) > '9')) sp++;
while (sp < sl) {
if (szTime.charAt(sp) >= '0' && szTime.charAt(sp) <= '9') {
if (s < 4)
c += szTime.charAt(sp);
sp++;
s++;
continue;
}
//if(szTime[sp] == '-')
sp++;
break;
}//check year
y = Integer.valueOf(c);
if (y < 1970 || y > 2038) return false;
while (sp < sl && (szTime.charAt(sp) < '0' || szTime.charAt(sp) > '9')) sp++;
s = 0;
c = "";
while (sp < sl) {
if (szTime.charAt(sp) >= '0' && szTime.charAt(sp) <= '9') {
if (s < 2)
c += szTime.charAt(sp);
sp++;
s++;
continue;
}
//if(szTime.charAt(sp) == '-')
sp++;
break;
}//check month
if (s > 2) return false;
m = Integer.valueOf(c);
if (m < 1 || m > 12) return false;
while (sp < sl && (szTime.charAt(sp) < '0' || szTime.charAt(sp) > '9')) sp++;
s = 0;
c = "";
while (sp < sl) {
if (szTime.charAt(sp) >= '0' && szTime.charAt(sp) <= '9') {
if (s < 2) c += szTime.charAt(sp);
sp++;
s++;
continue;
}
//if(szTime.charAt(sp) == '-')
sp++;
break;
}//check day
if (s > 2) return false;
d = Integer.valueOf(c);
if (d < 1 || d > 31) return false;
t_time.set(y, m, d, 0, 0, 0);
return true;
}
public static boolean isDate(String szTime) {
Calendar t_time = Calendar.getInstance();
boolean b = isDate(szTime, t_time);
return b;
}
public static boolean isTime(String szTime, Calendar t_time) {
if (szTime == null)
return false;
//t_time.setTime(time)
int sl = szTime.length();
int sp = 0;
int s = 0;
String c = "";
int h, min, sec;
while (sp < sl && (szTime.charAt(sp) < '0' || szTime.charAt(sp) > '9')) sp++;
s = 0;
c = "";
while (sp < sl) {
if (szTime.charAt(sp) >= '0' && szTime.charAt(sp) <= '9') {
if (s < 2) c += szTime.charAt(sp);
sp++;
s++;
continue;
}
//if(szTime.charAt(sp) == ':')
sp++;
break;
}//check hour
if (s > 2) return false;
h = Integer.valueOf(c);
if (h < 0 || h > 24) return false;
while (sp < sl && (szTime.charAt(sp) < '0' || szTime.charAt(sp) > '9')) sp++;
s = 0;
c = "";
while (sp < sl) {
if (szTime.charAt(sp) >= '0' && szTime.charAt(sp) <= '9') {
if (s < 2) c += szTime.charAt(sp);
sp++;
s++;
continue;
}
//if(szTime.charAt(sp) == ':')
sp++;
break;
}//check minute
if (s > 2) return false;
min = Integer.valueOf(c);
if (min < 0 || min > 60) return false;
s = 0;
c = "";
while (sp < sl && (szTime.charAt(sp) < '0' || szTime.charAt(sp) > '9')) sp++;
while (sp < sl) {
if (szTime.charAt(sp) >= '0' && szTime.charAt(sp) <= '9') {
if (s < 2) c += szTime.charAt(sp);
sp++;
s++;
continue;
}
break;
}//check second
if (s > 2) return false;
sec = Integer.valueOf(c);
if (sec < 0 || sec > 60) return false;
t_time.set(2010, 10, 10, h, min, sec);
return true;
}
public static boolean isTime(String szTime) {
Calendar t_time = Calendar.getInstance();
boolean b = isTime(szTime, t_time);
return b;
}
public static String trimDateString(String szDateStr) {
if (szDateStr == null)
return null;
int sl = szDateStr.length();
StringBuilder sB = new StringBuilder();
String sTmp2 = "";
int nPart = 0;
boolean bDot = false;
boolean hasYearPart = false;
for (int j = 0; j < sl; j++) {
if (szDateStr.charAt(j) >= '0' && szDateStr.charAt(j) <= '9') {
if (bDot) {
if (!"".equals(sTmp2)) {
if (nPart > 0 && nPart < 3)
sB.append('-');
else if (nPart == 3)
sB.append(' ');
else if (nPart > 3 && nPart < 6)
sB.append(':');
nPart++;
if (sTmp2.length() == 1) {
sB.append('0');
}
if (sTmp2.length() > 0)
sB.append(sTmp2);
sTmp2 = "";
}
bDot = false;
}
if (nPart >= 6)
break;
sTmp2 = sTmp2 + szDateStr.charAt(j);
if ((hasYearPart || nPart > 3) && (sTmp2.length() == 2 || sTmp2.charAt(0) > '5')) {
bDot = true;
} else if ((nPart < 3 && sTmp2.length() == 4)) {
hasYearPart = true;
bDot = true;
}
} else { //if(! sTmp2.equals(""))
bDot = true;
}
}
if (!"".equals(sTmp2)) {
if (nPart > 0 && nPart < 3)
sB.append('-');
else if (nPart == 3)
sB.append(' ');
else if (nPart > 3 && nPart < 6)
sB.append(':');
if (sTmp2.length() == 1) {
sB.append('0');
}
if (sTmp2.length() > 0)
sB.append(sTmp2);
}
return sB.toString();
}
public static String trimDigits(String szDigits) {
if (szDigits == null)
return null;
int sl = szDigits.length();
StringBuilder sTmp2 = new StringBuilder("");
for (int j = 0; j < sl; j++) {
if (szDigits.charAt(j) >= '0' && szDigits.charAt(j) <= '9')
sTmp2.append(szDigits.charAt(j));
}
return sTmp2.toString();
}
public static String trimNumber(String szNumber) {
if (szNumber == null)
return null;
int sp = 0;
int sl = szNumber.length();
boolean canBeSign = true;
StringBuilder sTmp2 = new StringBuilder();
for (int j = 0; j < sl; j++) {
if (canBeSign && (szNumber.charAt(j) == '-' || szNumber.charAt(j) == '+')) {
sTmp2.append(szNumber.charAt(j));
canBeSign = false;
}
if (szNumber.charAt(j) >= '0' && szNumber.charAt(j) <= '9') {
sTmp2.append(szNumber.charAt(j));
canBeSign = false;
} else if (sp == 0 && szNumber.charAt(j) == '.') {
sTmp2.append(szNumber.charAt(j));
canBeSign = false;
sp = 1;
}
}
return sTmp2.toString();
}
public static String sqlMatchToRegex(String sTempl) {
return "^" + sTempl.replaceAll("%", "\\\\S*")
.replaceAll("_", "\\\\S") + "$";
}
// ?_ *% 是通配符
public static boolean isMatch(String szValue, String szTempl) {
if (szValue == null || szTempl == null) return false;
if (szValue.equals(szTempl)) return true;
int nLV = szValue.length();
int nLT = szTempl.length();
if (nLV == 0 && nLT == 0) return true;
szValue = trimString(szValue);
szTempl = trimString(szTempl);
//return Pattern.matches(sqlMatchToRegex(szTempl), szValue);//
//Pattern.compile(sqlMatchToRegex(szTempl)).matcher(szValue).find()
return Pattern.matches(sqlMatchToRegex(szTempl), szValue);
}
/**
* 判断是否为中文
*
* @param c 中文
* @return 判断是否为中文
*/
public static boolean isChinese(char c) {
Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS || ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
|| ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B
|| ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION || ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS
|| ub == Character.UnicodeBlock.GENERAL_PUNCTUATION) {
return true;
}
return false;
}
/**
* 判断是否为中文，剔除标点符号
*
* @param c 中文
* @return 判断是否为中文
*/
public static boolean isChineseEscapeSymbol(char c) {
Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS
|| ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
|| ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
|| ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B
//|| ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION
//|| ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS
//|| ub == Character.UnicodeBlock.GENERAL_PUNCTUATION
) {
return true;
}
return false;
}
/**
* 获得首个中文位置
*
* @param strName strName
* @return -1 没有中文
*/
public static int getFirstChinesePos(String strName) {
char[] ch = strName.toCharArray();
for (int i = 0; i < ch.length; i++) {
char c = ch[i];
if (isChinese(c)) {
return i;
}
}
return -1;
}
/**
* 获得首个中文位置 ，标点符号不算
*
* @param strName strName
* @return -1 没有中文
*/
public static int getFirstChinesePosEscapeSymbol(String strName) {
char[] ch = strName.toCharArray();
for (int i = 0; i < ch.length; i++) {
char c = ch[i];
if (isChineseEscapeSymbol(c)) {
return i;
}
}
return -1;
}
}