/**
*
*/
package com.sign.utils;
import java.util.regex.Pattern;
/**
* @author Administrator
* create on 2015年6月3日
*
*/
public class StringUtil {
private static Pattern regidPattern = Pattern.compile("[\\w-]*"
);
public static boolean isDigital(String str){
Pattern p = Pattern.compile("(0|([1-9][0-9]*))(\\.[0-9]+)?"
);
return p.matcher(str).matches();
}
public static boolean isChinese(String scr) {
return !
regidPattern.matcher(scr).matches();
}
/**
*
* @param s
* @return
*/
public static boolean isAllChinese(String s) {
if (
null == s || "".equals(s.trim()))
return false;
for (
int i = 0; i < s.length(); i++
) {
if (!isChinese(s.charAt(i)))
return false;
}
return true;
}
/**
*
* @param s
* @return
*/
public static boolean isContainsChinese(String s){
if (
null == s || "".equals(s.trim()))
return false;
for (
int i = 0; i < s.length(); i++
) {
if (isChinese(s.charAt(i)))
return true;
}
return false;
}
/**
*
* @param a char
* @return boolean
*/
public static boolean isChinese(
char a) {
int v = (
int)a;
return (v >=19968 && v <= 171941)||v==183
;
}
/**
*
* @param input
* @return String
*/
public static final String escapeHTMLTag(String input) {
if (input ==
null) {
return ""
;
}
input = input.trim().replaceAll("&", "&"
);
input = input.trim().replaceAll("<", "<"
);
input = input.trim().replaceAll(">", ">"
);
input = input.trim().replaceAll("\t", " "
);
input = input.trim().replaceAll("\r\n", "\n"
);
input = input.trim().replaceAll("\n", "<br>"
);
input = input.trim().replaceAll(" ", " "
);
input = input.trim().replaceAll("'", "'"
);
input = input.trim().replaceAll("\\\\", "\"
);
return input;
}
public static String cleanHtmlTag(String htmlText) {
String reg = "</?[a-z][a-z0-9]*[^<>]*>?"
;
return htmlText.replaceAll(reg, ""
);
}
/**
*
*
*
* @param str
* @return
*/
public static String null2Trim(String str) {
return str ==
null ? ""
: str.trim();
}
public static String replaceXmlEntity(String xml){
xml = xml.replaceAll("&", "&"
);
xml = xml.replaceAll(""", "\""
);
xml = xml.replaceAll(">", ">"
);
xml = xml.replaceAll(" ", " "
);
xml = xml.replaceAll("'", "'"
);
return xml;
}
/**
*
*
* @param Str
* @return
*/
public static boolean isEmpty(String str) {
return !
notEmpty(str);
}
/**
*
*
* @param Str
* @return
*/
public static boolean notEmpty(String str) {
if (str !=
null && str.trim().length() > 0
)
return true;
return false;
}
public static void main(String[] argv)
{
boolean result = StringUtil.isDigital("0.1"
);
// int length = StringUtil.getStringLength("呵呵a");
int length = "呵呵"
.length();
System.out.println(result);
System.out.println(length);
}
}
转载于:https://www.cnblogs.com/shaozhiqi/p/4664387.html
