700字范文 > Java 验证密码复杂度的正则表达式

Java 验证密码复杂度的正则表达式

时间：2023-04-20 15:46:21

相关推荐

Java 验证密码复杂度的正则表达式

一正则表达式

复杂（同时包含数字，字母，特殊符号）"^^(?![a-zA-z]+$)(?!\\d+$)(?![!@#$%^&*_-]+$)(?![a-zA-z\\d]+$)(?![a-zA-z!@#$%^&*_-]+$)(?![\\d!@#$%^&*_-]+$)[a-zA-Z\\d!@#$%^&*_-]+$"简单（只包含数字或字母）"^(?:\\d+|[a-zA-Z]+|[!@#$%^&*]+)$"中级（包含字母和数字）"^(?![a-zA-z]+$)(?!\\d+$)(?![!@#$%^&*]+$)[a-zA-Z\\d!@#$%^&*]+$"

二弱密码校验

package com.mon.util;import mons.lang.StringUtils;/*** * @ClassName: PwdCheckUtil.java* @Description: 密码校验工具类*/public class PwdCheckUtil {public static String[] KEYBOARD_SLOPE_ARR = {"!qaz", "1qaz", "@wsx","2wsx", "#edc", "3edc", "$rfv", "4rfv", "%tgb", "5tgb","^yhn", "6yhn", "&ujm", "7ujm", "*ik,", "8ik,", "(ol.", "9ol.", ")p;/", "0p;/","+[;.", "=[;.", "_pl,", "-pl,", ")okm", "0okm", "(ijn", "9ijn", "*uhb", "8uhb","&ygv", "7ygv", "^tfc", "6tfc", "%rdx","5rdx", "$esz","4esz"};public static String[] KEYBOARD_HORIZONTAL_ARR = {"01234567890-=","!@#$%^&*()_+","qwertyuiop[]","QWERTYUIOP{}","asdfghjkl;'","ASDFGHJKL:","zxcvbnm,./","ZXCVBNM<>?",};public static String DEFAULT_SPECIAL_CHAR="!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~";public static String SPECIAL_CHAR = "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~";public static void main(String[] args) {//System.out.print(checkSequentialSameChars("AAAAA", 5));//System.out.print(checkSequentialChars("Abcks", 3, true));//System.out.print(checkKeyboardSlantSite("Qaz", 3, false));//System.out.print(checkLateralKeyboardSite("qwer", 3, false));}/*** @brief 检测密码中字符长度* @param[in] password 密码字符串* @return 符合长度要求返回true*/public static boolean checkPasswordLength(String password, String minNum, String maxNum) {boolean flag =false;if (StringUtils.isBlank(maxNum)) {minNum = StringUtils.isBlank(minNum) == true ? "0":minNum;if (password.length() >= Integer.parseInt(minNum)) {flag = true;}} else {minNum = StringUtils.isBlank(minNum) == true ? "0":minNum;if (password.length() >= Integer.parseInt(minNum) &&password.length() <= Integer.parseInt(maxNum)) {flag = true;}}return flag;}/*** @brief 检测密码中是否包含数字* @param[in] password 密码字符串* @return 包含数字返回true*/public static boolean checkContainDigit(String password) {char[] chPass = password.toCharArray();boolean flag = false;int num_count = 0;for (int i = 0; i < chPass.length; i++) {if (Character.isDigit(chPass[i])) {num_count++;}}if (num_count >= 1){flag = true;}return flag;}/*** @brief 检测密码中是否包含字母（不区分大小写）* @param[in] password 密码字符串* @return 包含字母返回true*/public static boolean checkContainCase(String password) {char[] chPass = password.toCharArray();boolean flag = false;int char_count = 0;for (int i = 0; i < chPass.length; i++) {if (Character.isLetter(chPass[i])) {char_count++;}}if (char_count >= 1) {flag = true;}return flag;}/*** @brief 检测密码中是否包含小写字母* @param[in] password 密码字符串* @return 包含小写字母返回true*/public static boolean checkContainLowerCase(String password) {char[] chPass = password.toCharArray();boolean flag = false;int char_count = 0;for (int i = 0; i < chPass.length; i++) {if (Character.isLowerCase(chPass[i])) {char_count++;}}if (char_count >= 1) {flag = true;}return flag;}/*** @brief 检测密码中是否包含大写字母* @param[in] password 密码字符串* @return 包含大写字母返回true*/public static boolean checkContainUpperCase(String password) {char[] chPass = password.toCharArray();boolean flag = false;int char_count = 0;for (int i = 0; i < chPass.length; i++) {if (Character.isUpperCase(chPass[i])) {char_count++;}}if (char_count >= 1) {flag = true;}return flag;}/*** @brief 检测密码中是否包含特殊符号* @param[in] password 密码字符串* @return 包含特殊符号返回true*/public static boolean checkContainSpecialChar(String password) {char[] chPass = password.toCharArray();boolean flag = false;int special_count = 0;for (int i = 0; i < chPass.length; i++) {if (SPECIAL_CHAR.indexOf(chPass[i]) != -1) {special_count++;}}if (special_count >= 1){flag = true;}return flag;}/*** @brief 键盘规则匹配器横向连续检测* @param[in] password 密码字符串* @return 含有横向连续字符串返回true*/public static boolean checkLateralKeyboardSite(String password, int repetitions, boolean isLower) {String t_password = new String(password);//将所有输入字符转为小写t_password = t_password.toLowerCase();int n = t_password.length();/*** 键盘横向规则检测*/boolean flag = false;int arrLen = KEYBOARD_HORIZONTAL_ARR.length;int limit_num = repetitions ;for(int i=0; i+limit_num<=n; i++) {String str = t_password.substring(i, i+limit_num);String distinguishStr = password.substring(i, i+limit_num);for(int j=0; j<arrLen; j++) {String configStr = KEYBOARD_HORIZONTAL_ARR[j];String revOrderStr = new StringBuffer(KEYBOARD_HORIZONTAL_ARR[j]).reverse().toString();//检测包含字母(区分大小写)if (isLower) {//考虑大写键盘匹配的情况String UpperStr = KEYBOARD_HORIZONTAL_ARR[j].toUpperCase();if((configStr.indexOf(distinguishStr) != -1) || (UpperStr.indexOf(distinguishStr) != -1)) {flag = true;return flag;}//考虑逆序输入情况下连续输入String revUpperStr = new StringBuffer(UpperStr).reverse().toString();if((revOrderStr.indexOf(distinguishStr) != -1) || (revUpperStr.indexOf(distinguishStr) != -1)) {flag = true;return flag;}}else {if(configStr.indexOf(str) != -1) {flag = true;return flag;}//考虑逆序输入情况下连续输入if(revOrderStr.indexOf(str) != -1) {flag = true;return flag;}}}}return flag;}/*** * @Title: checkKeyboardSlantSite * @Description: 物理键盘，斜向连接校验，如1qaz,4rfv, !qaz,@WDC,zaq1 返回true* @param password字符串* @param repetitions重复次数* @param isLower是否区分大小写 true:区分大小写， false:不区分大小写* @return boolean 如1qaz,4rfv, !qaz,@WDC,zaq1 返回true* @throws*/public static boolean checkKeyboardSlantSite(String password, int repetitions, boolean isLower) {String t_password = new String(password);t_password = t_password.toLowerCase();int n = t_password.length();/*** 键盘斜线方向规则检测*/boolean flag = false;int arrLen = KEYBOARD_SLOPE_ARR.length;int limit_num = repetitions;for(int i=0; i+limit_num<=n; i++) {String str = t_password.substring(i, i+limit_num);String distinguishStr = password.substring(i, i+limit_num);for(int j=0; j<arrLen; j++) {String configStr = KEYBOARD_SLOPE_ARR[j];String revOrderStr = new StringBuffer(KEYBOARD_SLOPE_ARR[j]).reverse().toString();//检测包含字母(区分大小写)if (isLower) {//考虑大写键盘匹配的情况String UpperStr = KEYBOARD_SLOPE_ARR[j].toUpperCase();if((configStr.indexOf(distinguishStr) != -1) || (UpperStr.indexOf(distinguishStr) != -1)) {flag = true;return flag;}//考虑逆序输入情况下连续输入String revUpperStr = new StringBuffer(UpperStr).reverse().toString();if((revOrderStr.indexOf(distinguishStr) != -1) || (revUpperStr.indexOf(distinguishStr) != -1)) {flag = true;return flag;}}else {if(configStr.indexOf(str) != -1) {flag = true;return flag;}//考虑逆序输入情况下连续输入if(revOrderStr.indexOf(str) != -1) {flag = true;return flag;}}}}return flag;}/*** @Title: checkSequentialChars * @Description: 评估a-z,z-a这样的连续字符, * @param password字符串* @param repetitions连续个数* @param isLower是否区分大小写 true:区分大小写， false:不区分大小写* @return boolean 含有a-z,z-a连续字符串返回true* @throws*/public static boolean checkSequentialChars(String password, int repetitions, boolean isLower) {String t_password = new String(password);boolean flag = false;int limit_num = repetitions;int normal_count = 0;int reversed_count = 0;//检测包含字母(区分大小写)if (!isLower) {t_password = t_password.toLowerCase();}int n = t_password.length();char[] pwdCharArr = t_password.toCharArray();for (int i=0; i+limit_num<=n; i++) {normal_count = 0;reversed_count = 0;for (int j=0; j<limit_num-1; j++) {if (pwdCharArr[i+j+1]-pwdCharArr[i+j]==1) {normal_count++;if(normal_count == limit_num -1){return true;}}if (pwdCharArr[i+j]-pwdCharArr[i+j+1]==1) {reversed_count++;if(reversed_count == limit_num -1){return true;}}}}return flag;}/*** * @Title: checkSequentialSameChars * @Description: 验证键盘上是否存在多个连续重复的字符，如！！！！, qqqq, 1111, ====, AAAA返回true* @param password字符串* @param repetitions重复次数* @return 参数 * @return boolean 返回类型 * @throws*/public static boolean checkSequentialSameChars(String password, int repetitions) {String t_password = new String(password);int n = t_password.length();char[] pwdCharArr = t_password.toCharArray();boolean flag = false;int limit_num = repetitions;int count = 0;for (int i=0; i+limit_num<=n; i++) {count=0;for (int j=0; j<limit_num-1; j++) {if(pwdCharArr[i+j] == pwdCharArr[i+j+1]) {count++;if (count == limit_num -1){return true;}}}}return flag;}}

本内容不代表本网观点和政治立场，如有侵犯你的权益请联系我们处理。

网友评论

网友评论仅供其表达个人看法，并不表明网站立场。