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commonutil是一个功能丰富的Java工具类库,通过封装静态方法,降低学习成本,提升工作效率。
package com.gitee.yongzhuzl.commonutil.util.regex;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* description: 正则表达式工具类
* @author 朱正磊
* @date 2018-06-01 18:20:51
*/
@SuppressWarnings("ALL")
public class RegexUtil {
/**
* 正则表达式字符串
*/
private String regex;
/**
* 待验证字符串
*/
private String toBeVerify;
private final static RegexUtil INSTANCE = new RegexUtil();
private RegexUtil() {}
public static RegexUtil getInstance() {
return INSTANCE;
}
/**
* description: 由正则表达式自定义构造函数
* @author 朱正磊
* @date 2018-06-01 19:01:58
* @param regex
*/
public RegexUtil(String regex) {
this.regex = regex;
}
/**
* description: 由正则表达式和待验证字符串自定义构造函数
* @author 朱正磊
* @date 2018-06-01 19:05:56
* @param regex
* @param toBeVerify
*/
public RegexUtil(String regex, String toBeVerify) {
this.regex = regex;
this.toBeVerify = toBeVerify;
}
/**
* description: 根据正则表达式验证字符串,RegexUtil(String regex)
* @author 朱正磊
* @date 2018-06-01 19:12:22
* @param toBeVerify 待验证字符串
* @return 返回验证结果,如果验证通过返回true,否则返回false
*/
public Boolean regex(String toBeVerify) {
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(toBeVerify);
return matcher.matches();
}
/**
* description: 根据正则表达式验证字符串,RegexUtil(String regex, String toBeVerify)
* @author 朱正磊
* @date 2018-06-01 19:20:51
* @return 返回验证结果,如果验证通过返回true,否则返回false
*/
public Boolean regex() {
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(toBeVerify);
return matcher.matches();
}
/**
* description: 静态方法,可类名调用
* @author 朱正磊
* @date 2018-06-01 19:23:57
* @param regex 正则表达式字符串
* @param toBeVerify 待验证字符串
* @return 返回验证结果,如果验证通过返回true,否则返回false
*/
public static Boolean regex(String regex, String toBeVerify) {
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(toBeVerify);
return matcher.matches();
}
public String getRegex() {
return regex;
}
public void setRegex(String regex) {
this.regex = regex;
}
public String getToBeVerify() {
return toBeVerify;
}
public void setToBeVerify(String toBeVerify) {
this.toBeVerify = toBeVerify;
}
/**
* description: 数字校验(可以匹配正负、整数、小数,比较全面)
* @author 朱正磊
* @date 2022-05-26 15:45:30
* @param str 待校验字符串
* @return 返回验证结果,如果验证通过返回true,否则返回false
*/
public static Boolean isNumeric(String str) {
return regex("^[+-]?([0-9]+(.[0-9]+)?)$", str);
}
/**
* description: 金额校验(匹配字符串,要求是数字,大于0,并且最多含有2位小数)
* @author 朱正磊
* @date 2022-05-26 13:31:34
* @param str 待校验字符串
* @return 返回验证结果,如果验证通过返回true,否则返回false
*/
public static Boolean isMoney(String str) {
return regex("^[+]?([0-9]+(.[0-9]{1,2})?)$", str);
}
/**
* description: 根据正则表达式获取指定内容中的匹配部分
* @author 朱正磊
* @date 2024-08-31 11:28:26
* @param regex 正则表达式
* @param input 指定内容
* @return 返回匹配内容
*/
public static String getMatcherGroup(String regex, String input) {
Matcher matcher = Pattern.compile(regex).matcher(input);
if (matcher.find()) {
return matcher.group();
}
return null;
}
}
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