StringUtil:字符串处理的工具类
2024-05-02 22:55:45
一个字符串处理的工具类(●’◡’●)
包含以下功能:
判断应用程序是否安装
字符拆分成数组
MD5 加密
拼接后的字符串
替换字符串
判断多个参数是否都为空
将字符串转换成HTML格式的字符串
将HTML格式的字符串转换成常规显示的字符串
获取加密的手机号
检查手机号
验证固定电话号码
检查密码有效
根据string.xml资源格式化字符串
验证身份证号码
将元单位数字转成int类型的元
格式化数字
数字转成以万、亿为单位，1.0–>1; 1.1–>1.1
将一字符串数组以某特定的字符串作为分隔来变成字符串
验证字符串合法性
将数值型字符串转换成Integer型
将数值型转换成字符串
比较两字符串大小(ASCII码顺序)
将阿拉伯数字的钱数转换成中文方式
将字符串的首字母改为大写
判断list中是否包含某一个字符串
list转String
String转list 去除null 空串
根据Resource ID获取字符串
将浮点数进行四舍五入
去除字符串前后的空格
去除转义
添加url参数
设置一段不同颜色的文字
字符拆分
截取指定size的String
转码中文字符串
用来比较手机号版本
截取指定长度 从0开始，包左不包右
是否有中文字符
public class StringUtil {public static int DEFAULT_INT = -100;/** 判断应用程序是否安装*/public static boolean isPkgInstalled(String pkgName, Context context) {PackageInfo packageInfo = null;try {packageInfo = context.getPackageManager().getPackageInfo(pkgName, 0);} catch (NameNotFoundException e) {packageInfo = null;e.printStackTrace();}return packageInfo != null;}/** 字符拆分成数组*/public static String getStrSplitByCondition(String str, String split, String condition) {String[] cookieArr = str.split(split);String result = "";for (int i = 0; i < cookieArr.length; i++) {Log.i("ss", "___________________________cookieArr[" + i + "]:" + cookieArr[i]);if (cookieArr[i].contains(condition)) {Log.i("ss", "________________________________cookieArr[" + i + "]:" + cookieArr[i]);return cookieArr[i];}}return result;}/** MD5 加密*/public static String getSign(String signStr) {StringBuffer buf = new StringBuffer("");try {MessageDigest md = MessageDigest.getInstance("MD5");md.update(signStr.getBytes());byte b[] = md.digest();int i;for (byte aB : b) {i = aB;if (i < 0) i += 256;if (i < 16)buf.append("0");buf.append(Integer.toHexString(i));}} catch (NoSuchAlgorithmException e) {// TODO Auto-generated catch blocke.printStackTrace();}String sign = buf.toString();return sign;}/*** @param obj* @return 拼接后的字符串*/public static String copy(Object... obj) {StringBuffer mStringBuffer = new StringBuffer();for (Object anObj : obj) {mStringBuffer.append(anObj);}return mStringBuffer.toString();}/*** 替换字符串** @param strSc 需要进行替换的字符串* @param oldStr 源字符串* @param newStr 替换后的字符串* @return 替换后对应的字符串* @since 1.1*/public static String replace(String strSc, String oldStr, String newStr) {String ret = strSc;if (ret != null && oldStr != null && newStr != null) {ret = strSc.replaceAll(oldStr, newStr);}return ret;}public static String getSplitString(String srcString, String split) {StringBuilder stringBuilder = new StringBuilder(srcString);for (int i = 4; i < stringBuilder.length(); i += 5) {stringBuilder.insert(i, split);}return stringBuilder.toString();}public static boolean isContain(String strSc, String str, String splitStr) {String split = ",";if (!isNull(splitStr)) {split = splitStr;}if (!isNull(strSc, str)) {String[] strs = strSc.split(split);for (String newStr : strs) {if (newStr.trim().equals(str)) {return true;}}}return false;}public static String subZeroAndDot(String s) {if (s.indexOf(".") > 0) {s = s.replaceAll("0+?$", "");//去掉多余的0s = s.replaceAll("[.]$", "");//如最后一位是.则去掉}return s;}/*** 判断多个参数是否都为空** @param strArray* @return*/public static boolean isNull(Object... strArray) {boolean result = false;for (Object str : strArray) {if (isEmpty(str)) {result = true;break;} else {result = false;}}return result;}/*** 判断多个参数是否为空** @param str* @return*/public static boolean isEmpty(Object str) {return ("").equals(str) || str == null;}/*** 替换字符串，修复java.lang.String类的replaceAll方法时第一参数是字符串常量正则时(如："address".* replaceAll("dd","$");)的抛出异常：java.lang.StringIndexOutOfBoundsException:* String index out of range: 1的问题。** @param strSc 需要进行替换的字符串* @param oldStr 源字符串* @param newStr 替换后的字符串* @return 替换后对应的字符串* @since 1.2*/public static String replaceAll(String strSc, String oldStr, String newStr) {int i = -1;while ((i = strSc.indexOf(oldStr)) != -1) {strSc = new StringBuffer(strSc.substring(0, i)).append(newStr).append(strSc.substring(i + oldStr.length())).toString();}return strSc;}/*** 将字符串转换成HTML格式的字符串** @param str 需要进行转换的字符串* @return 转换后的字符串* @since 1.1*/public static String toHtml(String str) {String html = str;if (str == null || str.length() == 0) {return "";} else {html = replace(html, "&", "&");html = replace(html, "<", "<");html = replace(html, ">", ">");html = replace(html, "\r\n", "\n");html = replace(html, "\n", "<br>\n");html = replace(html, "\"", """);html = replace(html, " ", " ");return html;}}/*** 将HTML格式的字符串转换成常规显示的字符串** @param str 需要进行转换的字符串* @return 转换后的字符串* @since 1.1*/public static String toText(String str) {String text = str;if (str == null || str.length() == 0) {return "";} else {text = replace(text, "&", "&");text = replace(text, "<", "<");text = replace(text, ">", ">");text = replace(text, "<br>\n", "\n");text = replace(text, "<br>", "\n");text = replace(text, """, "\"");text = replace(text, " ", " ");text = replace(text, "“", "“");text = replace(text, "”", "”");return text;}}/*** 获取加密的手机号** @param phoneNum* @return*/public static String getEncryptMobile(String phoneNum) {if (!checkMobile(phoneNum)) {return phoneNum;}StringBuilder stringBuilder = new StringBuilder(phoneNum.substring(0, 3));stringBuilder.append("****");stringBuilder.append(phoneNum.substring(7));return stringBuilder.toString();}/*** 检查手机号** @param phoneNum* @return*/public static boolean checkMobile(String phoneNum) {Pattern p = Pattern.compile("^1[3|4|5|7|8]\\d{9}$");Matcher m = p.matcher(phoneNum);return m.matches();}/*** 验证固定电话号码** @param phone 电话号码，格式：国家（地区）电话代码 + 区号（城市代码） + 电话号码，如：+8602085588447* <p><b>国家（地区） 代码 ：</b>标识电话号码的国家（地区）的标准国家（地区）代码。它包含从 0 到 9 的一位或多位数字，* 数字之后是空格分隔的国家（地区）代码。</p>* <p><b>区号（城市代码）：</b>这可能包含一个或多个从 0 到 9 的数字，地区或城市代码放在圆括号——* 对不使用地区或城市代码的国家（地区），则省略该组件。</p>* <p><b>电话号码：</b>这包含从 0 到 9 的一个或多个数字 </p>* @return 验证成功返回true，验证失败返回false*/public static boolean checkPhone(String phone) {if (phone.length() != 11 || (!TextUtils.isEmpty(phone) && !phone.startsWith("1"))) {return false;}String regex = "(\\+\\d+)?(\\d{3,4}\\-?)?\\d{7,8}$";return Pattern.matches(regex, phone);}/*** 检查密码有效* 大于6位包含数字小写字母和大写字母** @param pass* @return*/public static boolean checkPass(String pass) {boolean match = !TextUtils.isEmpty(pass) && pass.length() > 6; //检查位数if (match) {String[] patterns = new String[]{"[0-9]+", "[a-zA-Z]+"};for (String patternStr : patterns) {Pattern pattern = Pattern.compile(patternStr);Matcher matcher = pattern.matcher(pass);matcher.reset().usePattern(pattern);if (!matcher.find()) {match = false;break;}}}return match;}/*** 根据string.xml资源格式化字符串** @param context* @param resource* @param args* @return*/public static String formatResourceString(Context context, int resource, Object... args) {String str = context.getResources().getString(resource);if (TextUtils.isEmpty(str)) {return null;}return String.format(str, args);}/*** 验证身份证号码** @param idCard 居民身份证号码15位或18位，最后一位可能是数字或字母* @return 验证成功返回true，验证失败返回false*/public static boolean checkIdCard(String idCard) {if (idCard.length() != 15 && idCard.length() != 18) {return false;}String regex = "[1-9]\\d{13,16}[a-zA-Z0-9]{1}";return Pattern.matches(regex, idCard);}/*** 将元单位数字转成int类型的元** @param numStr*/public static int numStrToInt(String numStr) {int num = 0;try {if (!TextUtils.isEmpty(numStr)) {num = Integer.valueOf(numStr);}} catch (Exception e) {e.printStackTrace();}return num;}/*** 格式化数字** @param num (int)*/public static String simpleFormat(int num) {DecimalFormat df = new DecimalFormat("#.#");StringBuilder numFormat = new StringBuilder();double numDouble;if (num > 1000 && num < 10000) {//1千以上numDouble = num / 1000d;numFormat.append(df.format(numDouble)).append("k");} else if (num > 10000) { // 万以上numDouble = num / 10000d;numFormat.append(df.format(numDouble)).append("w");} else {numFormat.append(num);}return numFormat.toString();}/*** 数字转成以万、亿为单位，1.0-->1; 1.1-->1.1** @param numStr (String)*/public static String newNumFormat(String numStr) {try {long num = Integer.valueOf(numStr);return newNumFormat(num);} catch (Exception e) {e.printStackTrace();return numStr;}}/*** 数字转成以万、亿为单位，1.0-->1; 1.1-->1.1** @param num (int)*/public static String newNumFormat(long num) {DecimalFormat df = new DecimalFormat("#.#");StringBuilder numFormat = new StringBuilder();double numDouble;if (num <= 1000000 && num > 10000) { // 万以上numDouble = num / 10000d;numFormat.append(df.format(numDouble)).append("万");} else if (num > 1000000) { // 百万以上numDouble = num / 1000000d;numFormat.append(df.format(numDouble)).append("百万");} else {numFormat.append(num);}return numFormat.toString();}/*** 将一字符串数组以某特定的字符串作为分隔来变成字符串** @param strs 字符串数组* @param token 分隔字符串* @return 以token为分隔的字符串* @since 1.0*/public static String join(String[] strs, String token) {if (strs == null)return null;StringBuffer sb = new StringBuffer();for (int i = 0; i < strs.length; i++) {if (i != 0)sb.append(token);sb.append(strs[i]);}return sb.toString();}/*** 将一字符串以某特定的字符串作为分隔来变成字符串数组** @param str 需要拆分的字符串("@12@34@56")* @param token 分隔字符串("@")* @return 以token为分隔的拆分开的字符串数组* @since 1.0*/public static String[] split(String str, String token) {String temp = str.substring(1, str.length());return temp.split(token);}/*** 验证字符串合法性** @param str 需要验证的字符串* @param test 非法字符串（如："~!#$%^&*()',;:?"）* @return true:非法;false:合法* @since 1.0*/public static boolean check(String str, String test) {if (str == null || str.equals(""))return true;boolean flag = false;for (int i = 0; i < test.length(); i++) {if (str.indexOf(test.charAt(i)) != -1) {flag = true;break;}}return flag;}/*** 将数值型字符串转换成Integer型** @param str 需要转换的字符型字符串* @param defaultValue 转换失败时返回的值* @return 成功则返回转换后的Integer型值；失败则返回ret* @since 1.0*/public static Integer String2Integer(String str, Integer defaultValue) {if (TextUtils.isEmpty(str)) {return defaultValue;}try {return Integer.parseInt(str);} catch (NumberFormatException e) {return defaultValue;}}/*** has already set default int value in the method body.** @param str input string to convert to integer value* @return str's int value,if empty return default value*/public static Integer String2Integer(String str) {return String2Integer(str, DEFAULT_INT);}public static long getLongValue(Object o, long defaultValue) {if (!isNull(o)) {try {return Long.parseLong(String.valueOf(o));} catch (Exception e) {}}return defaultValue;}/*** 将数值型转换成字符串** @param it 需要转换的Integer型值* @param ret 转换失败的返回值* @return 成功则返回转换后的字符串；失败则返回ret* @since 1.0*/public static String Integer2String(Integer it, String ret) {try {return Integer.toString(it);} catch (NumberFormatException e) {return ret;}}/*** 比较两字符串大小(ASCII码顺序)** @param str1 参与比较的字符串1* @param str2 参与比较的字符串2* @return str1>str2:1;str1<str2:-1;str1=str2:0* @since 1.1*/public static int compare(String str1, String str2) {//if (str1.equals(str2)) {return 0;}int str1Length = str1.length();int str2Length = str2.length();int length = 0;if (str1Length > str2Length) {length = str2Length;} else {length = str1Length;}for (int i = 0; i < length; i++) {if (str1.charAt(i) > str2.charAt(i)) {return 1;}}return -1;}/*** 将阿拉伯数字的钱数转换成中文方式** @param num 需要转换的钱的阿拉伯数字形式* @return 转换后的中文形式* @since 1.1*/public static String num2Chinese(double num) {String result = "";String str = Double.toString(num);if (str.contains(".")) {String begin = str.substring(0, str.indexOf("."));String end = str.substring(str.indexOf(".") + 1, str.length());byte[] b = begin.getBytes();int j = b.length;for (int i = 0, k = j; i < j; i++, k--) {result += getConvert(begin.charAt(i));if (!"零".equals(result.charAt(result.length() - 1) + "")) {result += getWei(k);}System.out.println(result);}for (int i = 0; i < result.length(); i++) {result = result.replaceAll("零零", "零");}if ("零".equals(result.charAt(result.length() - 1) + "")) {result = result.substring(0, result.length() - 1);}result += "元";byte[] bb = end.getBytes();int jj = bb.length;for (int i = 0, k = jj; i < jj; i++, k--) {result += getConvert(end.charAt(i));if (bb.length == 1) {result += "角";} else if (bb.length == 2) {result += getFloat(k);}}} else {byte[] b = str.getBytes();int j = b.length;for (int i = 0, k = j; i < j; i++, k--) {result += getConvert(str.charAt(i));result += getWei(k);}}return result;}public static String getString(String str, int count) {if (!(str.charAt(count - 1) >= 'a' && str.charAt(count - 1) <= 'z' || str.charAt(count - 1) >= 'A' && str.charAt(count - 1) <= 'Z'))return str.substring(0, count - 1);elsereturn str.substring(0, count);}private static String getConvert(char num) {if (num == '0') {return "零";} else if (num == '1') {return "一";} else if (num == '2') {return "二";} else if (num == '3') {return "三";} else if (num == '4') {return "四";} else if (num == '5') {return "五";} else if (num == '6') {return "六";} else if (num == '7') {return "七";} else if (num == '8') {return "八";} else if (num == '9') {return "九";} else {return "";}}private static String getFloat(int num) {if (num == 2) {return "角";} else if (num == 1) {return "分";} else {return "";}}private static String getWei(int num) {if (num == 1) {return "";} else if (num == 2) {return "十";} else if (num == 3) {return "百";} else if (num == 4) {return "千";} else if (num == 5) {return "万";} else if (num == 6) {return "十";} else if (num == 7) {return "百";} else if (num == 8) {return "千";} else if (num == 9) {return "亿";} else if (num == 10) {return "十";} else if (num == 11) {return "百";} else if (num == 12) {return "千";} else if (num == 13) {return "兆";} else {return "";}}/*** 将字符串的首字母改为大写** @param str 需要改写的字符串* @return 改写后的字符串* @since 1.2*/public static String firstToUpper(String str) {return str.substring(0, 1).toUpperCase() + str.substring(1);}/*** 判断list中是否包含某一个字符串** @param str1* @return*/public static boolean listContain(List list, String str1) {return !(list == null || list.size() == 0) && list.contains(str1);}/*** list转String** @param list* @param sign 分隔符号* @return*/public static String List2String(List<String> list, String sign) {if (list == null || list.size() == 0)return null;StringBuffer sb = new StringBuffer();for (String string : list) {sb.append(string).append(sign);}return sb.substring(0, sb.length() - 1);}/*** String转list 去除null 空串** @param target* @param sign 分隔符号* @return*/public static List<String> String2List(String target, String sign) {List<String> usersList = new ArrayList<String>();if (!StringUtil.isEmpty(target)) {String[] vs = target.split(sign);for (String v : vs) {if (!StringUtil.isEmpty(v))usersList.add(v);}}return usersList;}public static String escapeHtmlSign(String value) {if (value == null)return null;if (value instanceof String) {String result = value;// "'<>&result = result.replaceAll("&", "&").replaceAll(">", ">").replaceAll("<", "<").replaceAll("\"", """).replaceAll("'", "'");return result;} else {return value;}}public static String unEscapeHtmlSign(String value) {if (value == null)return null;if (value instanceof String) {String result = value;// "'<>&result = result.replaceAll("&", "&").replaceAll(">", ">").replaceAll("<", "<").replaceAll(""", "\"").replaceAll("'", "'");return result;} else {return value;}}/*** 根据Resource ID获取字符串** @param resId* @return* @deprecated 直接用getString()或者getContext().getString()的系统方法*/public static String getStringFromId(Application app, int resId) {return app.getString(resId);}/*** 将浮点数进行四舍五入** @return 改写后的字符串*/public static String doubleToString(double str) {return doubleToString(str, 2);}public static String formatNum(float num) {DecimalFormat decimalFormat = new DecimalFormat("0.00");return decimalFormat.format(num);}public static String numToString(int str) {return doubleToString(str, 2);}public static String doubleToString(double str, int offset) {return new BigDecimal(str + "").setScale(offset,BigDecimal.ROUND_HALF_UP).toString();}public static Date stringDateTodate(String date) {String time = date.substring(6, date.length() - 7);return new Date(Long.parseLong(time));}/*** 去除字符串前后的空格** @param text* @return*/public static String trimString(String text) {if (!TextUtils.isEmpty(text)) {text = text.replaceAll("[ | ]", " ").trim(); //替换全角空格为半角，然后过滤}return text;}/*** 去除转义** @param text* @return*/public static String escapeString(String text) {try {if (!TextUtils.isEmpty(text)) {text = text.replaceAll("[\\n\\r]*", "");}} catch (Exception e) {e.printStackTrace();}if (TextUtils.isEmpty(text)) text = "";return text;}/*** 添加url参数** @param url* @param params* @return*/public static String appendUrlParams(String url, String params) {if (TextUtils.isEmpty(url)) {return url;}if (url.endsWith("/")) {url = url.substring(0, url.length() - 1);}Pattern pattern = Pattern.compile("\\?[\\w]*=");Matcher matcher = pattern.matcher(url);if (matcher.find()) {return url + "&" + params;} else {return url + "?" + params;}}public static void main(String[] args) {}/*** 设置一段不同颜色的文字** @param colors：颜色数组，按顺序取，getColor所得的值* @param index：切换颜色对应的位置（第几个内容需要变色）* @param s：文字数组*/public static SpannableStringBuilder getColorSpan(Integer[] index, int[] colors, CharSequence... s) {List<Integer> indexList = Arrays.asList(index);SpannableStringBuilder stringBuilder = new SpannableStringBuilder();int colorIndex = 0;for (int i = 0; i < s.length; i++) {if (indexList.contains(Integer.valueOf(i))) {SpannableString spanString = new SpannableString(s[i]);if (colorIndex >= colors.length) {colorIndex = colors.length - 1;}ForegroundColorSpan span = new ForegroundColorSpan(colors[colorIndex]);colorIndex++;spanString.setSpan(span, 0, s[i].length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);stringBuilder.append(spanString);} else {stringBuilder.append(s[i]);}}return stringBuilder;}/*** 字符拆分** @param str 原字符* @param split 分隔符* @return*/public static String getSubStrSplit(String str, String split) {if (!TextUtils.isEmpty(split) && !TextUtils.isEmpty(str) && str.contains(split)) {str = str.substring(0, str.indexOf(split));}return str;}/*** 截取指定size的String*/public static String resizeContent(String content, int size) {StringBuilder resizeContent = new StringBuilder();if (!TextUtils.isEmpty(content) && content.length() > size) {resizeContent.append(content.substring(0, size));resizeContent.append("...");} else {resizeContent.append(content);}return resizeContent.toString();}/*** 转码中文字符串** @param srcStr* @return*/public static String encodeChineseStr(String srcStr) {String dstStr = srcStr;if (!TextUtils.isEmpty(dstStr)) {if (srcStr.length() < srcStr.getBytes().length) {try {dstStr = URLEncoder.encode(dstStr, "utf-8");} catch (UnsupportedEncodingException e) {e.printStackTrace();}}}return dstStr;}/*** 用来比较手机号版本** @param s1* @param s2* @return s1<s2*/public static boolean compareToMin(String s1, String s2) {if (TextUtils.isEmpty(s1) || TextUtils.isEmpty(s2)) {return false;}s1 = s1.replaceAll("[a-zA-Z]", "");s2 = s2.replaceAll("[a-zA-Z]", "");int rt = s1.compareTo(s2);if (rt < 0) {return true;} else if (rt > 0) {return false;} else {return false;}}/*** 截取指定长度 从0开始，包左不包右*/public static String spliteTime(String dateStr, int start, int end) {CharSequence sequence = dateStr.subSequence(start, end);return sequence.toString();}/*** 是否有中文字符** @param str* @return*/public static boolean hasChineseChar(String str) {boolean temp = false;Pattern p = Pattern.compile("[\u4e00-\u9fa5]");Matcher m = p.matcher(str);if (m.find()) {temp = true;}return temp;}/*** 字符是否是中文字符* <p/>* 不包括““”号，“。”号，“，”号* <p/>* GENERAL_PUNCTUATION 判断中文的“号* <p/>* CJK_SYMBOLS_AND_PUNCTUATION 判断中文的。号* <p/>* HALFWIDTH_AND_FULLWIDTH_FORMS 判断中文的，号*/private static final boolean isChinese(char c) {Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);return ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS|| ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS|| ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A;}/*** 判断字符串是否含有中文字符*/public static final boolean isContainChinese(String strName) {char[] ch = strName.toCharArray();for (char c : ch) {if (isChinese(c)) {return true;}}return false;}final static int BUFFER_SIZE = 4096;public static byte[] InputStreamTOByte(InputStream in) {ByteArrayOutputStream outStream = new ByteArrayOutputStream();try {byte[] data = new byte[BUFFER_SIZE];int count = -1;while ((count = in.read(data, 0, BUFFER_SIZE)) != -1)outStream.write(data, 0, count);data = null;}catch (Exception e){e.printStackTrace();}return outStream.toByteArray();}
}
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