package kernel.util;
|
|
import java.math.BigDecimal;
|
import java.util.regex.Matcher;
|
import java.util.regex.Pattern;
|
|
|
public class Tools {
|
/**
|
* 验证手机号码
|
* @param phone true 是对的，false 是错误
|
* @return
|
*/
|
public static boolean isPhone(String phone){
|
|
Pattern p = Pattern.compile("^((13[0-9])|(14[0-9])|(15[0-9])||(17[0-9])||(18[0-9]))\\d{8}$");
|
|
Matcher m = p.matcher(phone);
|
|
return m.matches();
|
}
|
|
|
/**
|
* 验证邮箱地址
|
* @param phone true 是对的，false 是错误
|
* @return
|
*/
|
public static boolean isEmail(String email){
|
|
Pattern pattern = Pattern.compile("^([a-zA-Z0-9_\\-\\.]+)@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.)|(([a-zA-Z0-9\\-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$");
|
|
Matcher matcher = pattern.matcher(email);
|
|
return matcher.matches();
|
}
|
|
|
//保留两位小数点
|
public static double roundHalfUp(double f){
|
|
BigDecimal b = new BigDecimal(f);
|
return b.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
|
|
}
|
|
/**
|
* 美元转人民币
|
* @param dollar
|
* @return
|
*/
|
public static Double DollarToRMB(Double dollar){
|
|
// return roundHalfUp(dollar* Constants.RMB_DOLLAR_CONVERSION_RATE);
|
return 0.0;
|
}
|
|
public static boolean isEmpty(String string) {
|
if("null".equals(string))return true;
|
return string == null || string.trim().length() == 0;
|
}
|
/**
|
* 用来判断是否为数字
|
* @param str String
|
* @return true 匹配，false 不匹配
|
*/
|
public static boolean verifeNum(String str){
|
try{
|
Double.valueOf(str);
|
}catch(NumberFormatException nb){
|
return false;
|
|
}
|
return true;
|
}
|
}
|
