import java.net.URISyntaxException;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Date;import java.util.Enumeration;import java.util.List;import java.util.Vector;/** * * @author johennes * @version 1.0 */public class StringUtil {final static String[] SBC = { "，", "。", "；", "“", "”", "？", "！", "（", "）","：", "——", "、" };final static String[] DBC = { ",", ".", ";", "\"", "\"", "?", "!", "(",")", ":", "_", "," };/** * 去除字符串两端空格 如果字符串是空的返加null * * @Param String * @return String */public static String trim(String str) {if (str == null)return null;str = str.trim();if (str.length() == 0)return null;return str;}/** * 设置字符串首字母为大写 */public static String cap(String str) {if (str == null)return null;StringBuffer sb = new StringBuffer();sb.append(Character.toUpperCase(str.charAt(0)));sb.append(str.substring(1).toLowerCase());return sb.toString();}/** * 判断字符串是否是包含a-z, A-Z, 0-9, _(下划线) */public static boolean isWord(String str) {if (str == null)return false;char[] ch = str.toCharArray();int i;for (i = 0; i < str.length(); i++) {if ((!Character.isLetterOrDigit(ch[i])) && (ch[i] != '_'))return false;}return true;}/** * 判断字符串是否数字 */public static boolean isNum(String str) {if (str == null || str.length() <= 0)return false;char[] ch = str.toCharArray();for (int i = 0; i < str.length(); i++)if (!Character.isDigit(ch[i]))return false;return true;}/** * 判断字符串是否为实数 */public static boolean isNumEx(String str) {if (str == null || str.length() <= 0)return false;char[] ch = str.toCharArray();for (int i = 0, comcount = 0; i < str.length(); i++) {if (!Character.isDigit(ch[i])) {if (ch[i] != '.')return false;else if (i == 0 || i == str.length() - 1)return false; // .12122 or 423423. is not a real numberelse if (++comcount > 1)return false; // 12.322.23 is not a real number}}return true;}/** * examples: String str = (String)StringUtil.getStringStr("jfas12",1); */public static Object getStringStr(String str, int index) {Vector reStr = new Vector();Object obj = getStringNumber(str, 0);if (obj == null) {if (index > 1)return null;return str;} else {for (int i = 0; i < ((Vector) obj).size(); i++) {int indexOfString = str.indexOf((String) (((Vector) obj).elementAt(i)));if (indexOfString != 0)reStr.addElement(str.substring(0, indexOfString));str = str.substring(indexOfString+ ((String) (((Vector) obj).elementAt(i))).length());}if (str.length() != 0)reStr.addElement(str);}if (index <= 0)return reStr;if (index > reStr.size())return null;return reStr.elementAt(index - 1);}/** * 得到字符串中的第index个数字字符串 example: int i = * Integer.parseInt((String)StringUtil.getStringNumber("asjfdkla3.asfa4",1)); * return 1 */public static Object getStringNumber(String str, int index) {if (str == null)return null;char[] ch = str.toCharArray();int i;String tempStr = "";Vector returnNumber = new Vector();for (i = 0; i < str.length(); i++) {if (Character.isDigit(ch[i]))tempStr += ch[i];else {if (!tempStr.equals(""))returnNumber.addElement(tempStr);tempStr = "";}}if (!tempStr.equals(""))returnNumber.addElement(tempStr);if (returnNumber.isEmpty() || (index > returnNumber.size()))return null;else {if (index <= 0)return returnNumber;elsereturn returnNumber.elementAt(index - 1);}}/** * 替换字符串，sOld sNew的大小必须相同 */public static String replaceStrEq(String sReplace, String sOld, String sNew) {if (sReplace == null || sOld == null || sNew == null)return null;int iLen = sReplace.length();int iLenOldStr = sOld.length();int iLenNewStr = sNew.length();if (iLen <= 0 || iLenOldStr <= 0 || iLenNewStr <= 0)return sReplace;if (iLenOldStr != iLenNewStr)return sReplace;int[] iIndex = new int[iLen];iIndex[0] = sReplace.indexOf(sOld, 0);if (iIndex[0] == -1)return sReplace;int iIndexNum = 1;while (true) {iIndex[iIndexNum] = sReplace.indexOf(sOld,iIndex[iIndexNum - 1] + 1);if (iIndex[iIndexNum] == -1)break;iIndexNum++;}char[] caReplace = sReplace.toCharArray();char[] caNewStr = sNew.toCharArray();for (int i = 0; i < iIndexNum; i++) {for (int j = 0; j < iLenOldStr; j++) {caReplace[j + iIndex[i]] = caNewStr[j];}}return new String(caReplace);}/** * 替换字符串 */public static String replaceStrEx(String sReplace, String sOld, String sNew) {if (sReplace == null || sOld == null || sNew == null)return null;int iLen = sReplace.length();int iLenOldStr = sOld.length();int iLenNewStr = sNew.length();if (iLen <= 0 || iLenOldStr <= 0 || iLenNewStr < 0)return sReplace;int[] iIndex = new int[iLen];iIndex[0] = sReplace.indexOf(sOld, 0);if (iIndex[0] == -1)return sReplace;int iIndexNum = 1;while (true) {iIndex[iIndexNum] = sReplace.indexOf(sOld,iIndex[iIndexNum - 1] + 1);if (iIndex[iIndexNum] == -1)break;iIndexNum++;}Vector vStore = new Vector();String sub = sReplace.substring(0, iIndex[0]);if (sub != null)vStore.add(sub);int i = 1;for (i = 1; i < iIndexNum; i++) {vStore.add(sReplace.substring(iIndex[i - 1] + iLenOldStr, iIndex[i]));}vStore.add(sReplace.substring(iIndex[i - 1] + iLenOldStr, iLen));StringBuffer sbReplaced = new StringBuffer("");for (i = 0; i < iIndexNum; i++) {sbReplaced.append(vStore.get(i) + sNew);}sbReplaced.append(vStore.get(i));return sbReplaced.toString();}/** * 分隔字符串 */public static String[] splitStr(String sStr, String sSplitter) {if (sStr == null || sStr.length() <= 0 || sSplitter == null|| sSplitter.length() <= 0)return null;String[] saRet = null;int[] iIndex = new int[sStr.length()];iIndex[0] = sStr.indexOf(sSplitter, 0);if (iIndex[0] == -1) {saRet = new String[1];saRet[0] = sStr;return saRet;}int iIndexNum = 1;while (true) {iIndex[iIndexNum] = sStr.indexOf(sSplitter,iIndex[iIndexNum - 1] + 1);if (iIndex[iIndexNum] == -1)break;iIndexNum++;}Vector vStore = new Vector();int iLen = sSplitter.length();int i = 0;String sub = null;for (i = 0; i < iIndexNum + 1; i++) {if (i == 0)sub = sStr.substring(0, iIndex[0]);else if (i == iIndexNum)sub = sStr.substring(iIndex[i - 1] + iLen, sStr.length());elsesub = sStr.substring(iIndex[i - 1] + iLen, iIndex[i]);if (sub != null && sub.length() > 0)vStore.add(sub);}if (vStore.size() <= 0)return null;saRet = new String[vStore.size()];Enumeration e = vStore.elements();for (i = 0; e.hasMoreElements(); i++)saRet[i] = (String) e.nextElement();return saRet;}/** * 以sContacter为分隔符连接字符串数组saStr */public static String contactStr(String[] saStr, String sContacter) {if (saStr == null || saStr.length <= 0 || sContacter == null|| sContacter.length() <= 0)return null;StringBuffer sRet = new StringBuffer("");for (int i = 0; i < saStr.length; i++) {if (i == saStr.length - 1)sRet.append(saStr[i]);elsesRet.append(saStr[i] + sContacter);}return sRet.toString();}/** * 转换整型数组为字符串 */public static String contactStr(int[] saStr, String sContacter) {if (saStr == null || saStr.length <= 0 || sContacter == null|| sContacter.length() <= 0)return null;StringBuffer sRet = new StringBuffer("");for (int i = 0; i < saStr.length; i++) {if (i == saStr.length - 1)sRet.append(new Integer(saStr[i]));elsesRet.append(new Integer(saStr[i]) + sContacter);}return sRet.toString();}/** * 排序字符串数组 */public static String[] sortByLength(String[] saSource, boolean bAsc) {if (saSource == null || saSource.length <= 0)return null;int iLength = saSource.length;String[] saDest = new String[iLength];for (int i = 0; i < iLength; i++)saDest[i] = saSource[i];String sTemp = "";int j = 0, k = 0;for (j = 0; j < iLength; j++)for (k = 0; k < iLength - j - 1; k++) {if (saDest[k].length() > saDest[k + 1].length() && bAsc) {sTemp = saDest[k];saDest[k] = saDest[k + 1];saDest[k + 1] = sTemp;} else if (saDest[k].length() < saDest[k + 1].length() && !bAsc) {sTemp = saDest[k];saDest[k] = saDest[k + 1];saDest[k + 1] = sTemp;}}return saDest;}public static String compactStr(String str) {if (str == null)return null;if (str.length() <= 0)return "";String sDes = new String(str);int iBlanksAtStart = 0;int iLen = str.length();while (sDes.charAt(iBlanksAtStart) == ' ')if (++iBlanksAtStart >= iLen)break;String[] saDes = splitStr(sDes.trim(), " ");if (saDes == null)return null;int i = 0;for (i = 0; i < saDes.length; i++) {saDes[i] = saDes[i].trim();}sDes = contactStr(saDes, " ");StringBuffer sBlank = new StringBuffer("");for (i = 0; i < iBlanksAtStart; i++)sBlank.append(" ");return sBlank.toString() + sDes;}/** * 转换sbctodbc */public static String symbolSBCToDBC(String sSource) {if (sSource == null || sSource.length() <= 0)return sSource;int iLen = SBC.length < DBC.length ? SBC.length : DBC.length;for (int i = 0; i < iLen; i++)sSource = replaceStrEx(sSource, SBC[i], DBC[i]);return sSource;}/** * 转换dbctosbc */public static String symbolDBCToSBC(String sSource) {if (sSource == null || sSource.length() <= 0)return sSource;int iLen = SBC.length < DBC.length ? SBC.length : DBC.length;for (int i = 0; i < iLen; i++)sSource = replaceStrEx(sSource, DBC[i], SBC[i]);return sSource;}/** * 判断是否email地址 */public static boolean isEmailUrl(String str) {if ((str == null) || (str.length() == 0))return false;if ((str.indexOf('@') > 0)&& (str.indexOf('@') == str.lastIndexOf('@'))) {if ((str.indexOf('.') > 0)&& (str.lastIndexOf('.') > str.indexOf('@'))) {return true;}}return false;}/** * 判断是否email地址 */public static boolean isEmailAddress(String str) {if (str == null || str.length() <= 0)return false;int iCommonCount = 0;int iAltCount = 0;char[] chEmail = str.trim().toCharArray();for (int i = 0; i < chEmail.length; i++) {if (chEmail[i] == ' ')return false;else if (chEmail[i] == '.') {if (i == 0 || (i == chEmail.length - 1))return false;}else if (chEmail[i] == '@') {if (++iAltCount > 1 || i == 0 || i == chEmail.length - 1)return false;}}if (str.indexOf('.') < str.indexOf('@'))return false;return true;}/** * 格式化日期 * * @param java.util.Date * date * @param String * newFormat * @return String example formatDate(date, "MMMM dd, yyyy") = July 20, 2000 */public static String formatDate(Date date, String newFormat) {if (date == null || newFormat == null)return null;java.text.SimpleDateFormat formatter = new java.text.SimpleDateFormat(newFormat);return formatter.format(date);}/** * 去除字符串中的特殊字符和两端空格 如果字符串是空的返回null * * @Param String * @return String */public static String clean(String s) {String t;if (s == null)return null;elset = s;t.replace('/', '／');t.replace('<', '〈');t.replace('>', '〉');t.replace('"', '“');t.replace(';', '；');t.replace('\'', ' ');t = StringUtil.replaceStrEx(t, "&", "*");t = t.trim();return t;}/** * 将Null的String转换为空字符串 */public static String cEmpty(String s) {if (s == null)return "";return s;}/** * 将空字符串转换为Null */public static String cNull(String s) {if (s == null)return null;if (s.trim().length() == 0)return null;return s;}/** * 如果s为空或Null, 则返回"NUll", 否则给s两边加上单引号返回。用在写数据库的时候。 */public static String nullString(String s) {if (s == null)return "Null";if (s.trim().length() == 0)return "Null";return "'" + s.trim() + "'";}public static String filterString(String s, String t) {String a = s;int i, j;j = t.length();while ((i = a.indexOf(t)) != -1) {a = a.substring(0, i - 1) + a.substring(i + j);}return a;}public static String getClassPath(){String str ="";try {str = StringUtil.class.getResource("").toURI().getPath();} catch (URISyntaxException e) {// TODO Auto-generated catch blocke.printStackTrace();}return str;}public static String getClassPath(String dir){String str ="";try {str = StringUtil.class.getClassLoader().getResource(dir).toURI().getPath();} catch (URISyntaxException e) {// TODO Auto-generated catch blocke.printStackTrace();}return str;}/** * 把 字符串 转换为 list 对象 * @param str * @return */public static List getListFromString(String str ){return getListFromString(str,",");}public static List getListFromString(String str ,String sign){if(str==null || str.equals("")){return new ArrayList();}String arr[] = str.split(sign);return getList(arr);}public static List getList(Object[] objs){List list = new ArrayList();for(Object obj : objs){list.add(obj);}return list;}/** * 获得 字符串 * @param strList 字符串lisst * @return 返回 aa，bb，cc 这样的字符串 */public static String getListString(List strList){return getListString(strList,",");}public static String getListString(List strList,String sign){String returnStr = "";if(strList==null || strList.size()<1){return "";}StringBuffer sb = new StringBuffer();for(Object obj :strList){sb.append(obj).append(sign);}// 去掉最后一个字符sb.delete(sb.length()-1, sb.length());returnStr = sb.toString();return returnStr;}/** * 将一个字符串中的多个连一起的空格变成单个空格并返回根据空格区分的字符串数组 * @param s * @return */public String[] turnSpacerToOne(String s){if(!s.contains(" ")){return null;}String test = s.replaceAll("\\s{1,}", " "); s = test; String[] str = s.split(" "); return str;}/** * 根据传入的值和类型判断并返回最后形成的SQL语句部分 * 如果原数据是NULL或者空字符串则返回null * 如果原数据有内容就返回对应类型的SQL字符串 * @param o * @param dirtype * @return */public String returnStringForInsSql(Object o,String dirtype){String result = "";if(o != null){if(o instanceof Integer){result = String.valueOf(o);}else if(o instanceof String){result = o.toString();}else if(o instanceof Double){result = String.valueOf(o);}else if(o instanceof Float){result = String.valueOf(o);}else if(o instanceof Long){result = String.valueOf(o);}else if(o instanceof Boolean){result = o.toString();}else if(o instanceof Date){SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");result = df.format(o);}if(dirtype.equals("string")){result="'"+result+"'";}else if(dirtype.equals("date")){result = "to_date('"+result+"','yyyy-MM-dd HH24:mi:ss')";}}else{result = "null";}return result;}}
