课程设计-基于Java web的健身房管理系统(源码+数据库).zip

package com.kzw.core.util; // jcommon.java // // ------------------------------------------------------------------------- // This class is a container of common functions // Usage: // 1. Call the class methods: jcommon.pad(telcolsize, '0' -4) // ------------------------------------------------------------------------- // import java.util.ArrayList; import java.util.Enumeration; import java.util.List; import java.util.Properties; import java.util.StringTokenizer; import java.text.Collator; import java.text.SimpleDateFormat; import java.io.*; public class FunctionsUtil implements Serializable{ // ----------------------------- // Pad function - CLASS METHOD // ----------------------------- // This function pads a string up to the required length with the // pad character specified. // If len is negative, this function pads on the left // ----------------------------- public static char crchar[] = { 0x0D, 0x0A }; public static String crlf = new String(crchar); public static char cr = 0x0D; public static char lf = 0x0A; public static char quchar[] = { '"' }; public static char quBlank[] = { '"', '"' }; public static String quote = new String(quchar); public static String blankQuote = new String(quBlank); public static String fs = File.separator; private static char[] hex40 = null; static { hex40 = new char[4000]; for (int i = 0; i < 4000; i++) { hex40[i] = 0x40; } } // chopstr // This function chops a string up into strings tokens public static String chopstr(String line, int maxlen) { StringTokenizer strtoken = new StringTokenizer(line, " ", true); int curlen = 0; boolean firstoken = true; String retline = ""; while (strtoken.hasMoreTokens()) { String token = strtoken.nextToken(); curlen += token.length(); if (curlen <= maxlen | firstoken) { retline += token; } else { retline += crlf + token; curlen = token.length(); } if (firstoken) firstoken = false; } return retline; } public static String firstToUpperCase(String string) { String post = string.substring(1, string.length()); String first = ("" + string.charAt(0)).toUpperCase(); return first + post; } // append one file to another public static void copyAppend(String fromFile, String toFile) throws IOException { String lineIn; PrintWriter out = new PrintWriter(new FileWriter(toFile, true)); BufferedReader in = new BufferedReader(new FileReader(fromFile)); while ((lineIn = in.readLine()) != null) out.println(lineIn); out.close(); in.close(); } // convert from decimal string to hex string value public static String d2x(String numstr, int precision, int scale) { String retstr = ""; String signstr = ""; String pstr = ""; String sstr = ""; boolean beginscale = false; char onechar; if (numstr.indexOf("-") >= 0) signstr = "D"; else signstr = "C"; int strlen = numstr.length(); for (int i = 0; i < strlen; i++) { onechar = numstr.charAt(i); if (onechar == '+' || onechar == '-') ; else if (onechar == '.') beginscale = true; else if (beginscale) sstr += onechar; else pstr += onechar; } int diflen = precision - scale; if (pstr.length() < diflen) pstr = FunctionsUtil.Pad(pstr, '0', -1 * diflen); // pad precision portion if precision is an even number if ((precision % 2) == 0) pstr = "0" + pstr; if (sstr.length() < scale) sstr = FunctionsUtil.Pad(sstr, '0', scale); retstr = s2x(pstr + sstr + signstr); return retstr; } public static int exp(int in, int power) { int retval = in; if (power > 0) { for (int i = 1; i < power; i++) { retval = retval * in; } } else retval = 1; return retval; } // return the argument, converted to upper case, at a specific position // (counting from zero) public static String getArg(String[] arg, int argNum) { return ((argNum >= 0 && argNum < arg.length) ? arg[argNum] .toUpperCase() : ""); } // return the concatenation of arguments starting from a specific position // to the last one public static String getArg(String[] arg, int argNum, boolean lastArg) { String retstr = ""; retstr = getArg(arg, argNum); if (lastArg && argNum >= 0) for (int i = argNum + 1; i < arg.length; i++) retstr += " " + arg[i]; return retstr.toUpperCase(); } /** * This method was created in VisualAge. */ public static String getFmtString(String varName, String fmt) { int numDigits = 0; int numDecimals = 0; StringTokenizer tline = new StringTokenizer(fmt, " (),"); String tokstr = ""; boolean isNumDigits = true; while (tline.hasMoreTokens()) { tokstr = tline.nextToken().trim(); try { Integer num = new Integer(tokstr); if (isNumDigits) { numDigits = num.intValue(); isNumDigits = false; } else numDecimals = num.intValue(); } catch (Exception e) { } } // end while return getFmtString(varName, numDigits, numDecimals); } // search an option from the options string and return the value given for // that option termination by a " " or "/" /** * @param varName * @param numDigits * @param numDecimals * @return */ public static String getFmtString(String varName, int numDigits, int numDecimals) { // the number in the data type DECIMAL(A,B) has A-B integer digits and B // decimal digits int numSig = numDigits - numDecimals; StringBuffer retStr = new StringBuffer(""); int numThree = 0; for (int c = 0; c < numSig; c++) { if (numThree == 3) { retStr.insert(0, ","); numThree = 0; } if (c == 0) retStr.insert(0, "0"); else retStr.insert(0, "#"); ++numThree; } for (int c = 0; c < numDecimals; c++) { if (c == 0) retStr.append(".0"); else retStr.append("0"); } return (" private static String " + varName + "Fmt " + " = " + FunctionsUtil.quote + retStr.toString() + FunctionsUtil.quote + ";"); } public static String getFmtString(String varName, String digits, String decimals) { int numDigits = new Integer(digits).intValue(); int numDecimals = new Integer(decimals).intValue(); return getFmtString(varName, numDigits, numDecimals); } public static String getOpt(String options, String searchStr) { String retstr = ""; int i = options.indexOf(searchStr); if (i >= 0) { int e = options.length(); int s = i + searchStr.length(); int temp = options.indexOf(' ', s); if (temp >= 0 && temp < e) e = temp; temp = options.indexOf('/', s); if (temp >= 0 && temp < e) e = temp; retstr = options.substring(s, e); } // end if return retstr; } // search parmStr for searchStr=value and return value if found, otherwise // return blank public static String getParameter(String parmStr, String searchStr, String separator) { String result = ""; if (searchStr == null || parmStr == null) return result; // StringTokenizer tline = new StringTokenizer(parmStr, separator); while (tline.hasMoreTokens()) { String value = tline.nextToken().trim(); if (value.equals(searchStr)) { if (tline.hasMoreTokens()) result = tline.nextToken().trim(); break; } } return result; } /** * This method was created in VisualAge. */ public static String getScale(String fmt) { StringBuffer retStr = new StringBuffer(""); int numDigits = 0; int numDecimals = 0; StringTokenizer tline = new StringTokenizer(fmt, " (),"); String tokstr = ""; boolean isNumDigits = true; while (tline.hasMoreTokens()) { tokstr = tline.nextToken().trim(); try { Integer num = new Integer(tokstr); if (isNumDigits) { numDigits = num.intValue(); isNumDigits = false;