（2.3.12.1）正则校验字符串是否为数字

来源：互联网发布：焦作淘宝线下实体店编辑：程序博客网时间：2024/05/29 04:08
package com.sangfor.pocket.expenses.util;import java.util.regex.Matcher;import java.util.regex.Pattern;/** * 类描述： * <p/> * Created by sf on 2016/5/5. */public class NumberValidationUtils {    private static boolean isMatch(String regex, String orginal){        if (orginal == null || orginal.trim().equals("")) {            return false;        }        Pattern pattern = Pattern.compile(regex);        Matcher isNum = pattern.matcher(orginal);        return isNum.matches();    }    public static boolean isPositiveInteger(String orginal) {        return isMatch("^\\+{0,1}[1-9]\\d*", orginal);    }    public static boolean isNegativeInteger(String orginal) {        return isMatch("^-[1-9]\\d*", orginal);    }    public static boolean isWholeNumber(String orginal) {        return isMatch("[+-]{0,1}0", orginal) || isPositiveInteger(orginal) || isNegativeInteger(orginal);    }    public static boolean isPositiveDecimal(String orginal){        return isMatch("\\+{0,1}[0]\\.[1-9]*|\\+{0,1}[1-9]\\d*\\.\\d*", orginal);    }    public static boolean isNegativeDecimal(String orginal){        return isMatch("^-[0]\\.[1-9]*|^-[1-9]\\d*\\.\\d*", orginal);    }    public static boolean isDecimal(String orginal){        return isMatch("[-+]{0,1}\\d+\\.\\d*|[-+]{0,1}\\d*\\.\\d+", orginal);    }    public static boolean isRealNumber(String orginal){        return isWholeNumber(orginal) || isDecimal(orginal);    }    //最高9位整数，最高2位小数    public static final String AMOUNT_ZERO_REGEX = "(0*)(\\.0{0,2})?"; //0正则    public static final String AMOUNT_DECIMAL_REGEX = "(\\d*)(\\.\\d{0,2})?"; //正小数正则    public static final String NUMBER_REGEX = "^[1-9]+\\d*$";// 必须是1-9开头的。    public static final String USER_NAME_REGEX = "^[\\w\\u4e00-\\u9fa5][\\s\\w\\u4e00-\\u9fa5]*(?!\\s)$"; //名字过滤正则    public static boolean isMax92Decimal(String orginal){        return isMatch("^([1-9]\\d{0,8})(\\.\\d{0,2})?$", orginal);    }}
0 0