一个山寨版struts，带分页标签

package com.xgong.webframe.util; import java.lang.reflect.Constructor; import java.lang.reflect.Method; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Set; import java.util.StringTokenizer; public class Util { public static String getNow(String format) { long ts = System.currentTimeMillis(); return Date2String(format, ts); } /** * @deprecated */ public static String getTime(String format, long ts) { return Date2String(format, ts); } /** * @deprecated */ public static Date getFormatDate(String format, String date) { return String2Date(format, date); } public static String Date2String(String format, long ts) { Date dt = new Date(ts); SimpleDateFormat sf = new SimpleDateFormat(format); String now = sf.format(dt); return now; } public static Date String2Date(String format, String date) { SimpleDateFormat formatter = new SimpleDateFormat(format); Date res = null; try { res = formatter.parse(date); } catch (ParseException ex1) { ex1.printStackTrace(); } return res; } public static String replaceAllString(String source, String search, String replace) { StringBuffer sb = new StringBuffer(source); while (sb.indexOf(search) != -1) { int pos = sb.indexOf(search); sb.replace(pos, pos + search.length(), replace); } return sb.toString(); } public static boolean isNumber(String s) { if (s == null) return false; try { Long.parseLong(s.trim()); return true; } catch (NumberFormatException numberformatexception) { } return false; } public static boolean isEmpty(Object obj) { if (obj == null) return true; if (obj instanceof String) return "".equals(obj); if (obj instanceof StringBuffer) return (((StringBuffer)obj).length() > 0); if (obj instanceof Set) return ((Set)obj).isEmpty(); if (obj instanceof Map) return ((Map)obj).isEmpty(); if (obj instanceof List) return ((List)obj).isEmpty(); try { return ((Boolean)obj.getClass().getMethod("isEmpty", new Class[0]).invoke(obj, new Object[0])).booleanValue(); } catch (Exception ex) { } return false; } public static boolean isEqual(Object obj1, Object obj2) { if ((obj1 == null) && (obj2 == null)) return true; if ((obj1 != null) && (obj2 != null)) return obj1.equals(obj2); return false; } public static String htmlEncoding(String source) { if (source == null) return null; return source.replaceAll("&", "&amp;").replaceAll("<", "&lt;").replaceAll(">", "&gt;").replaceAll("'", "&apos;").replaceAll("\"", "&quote;").replaceAll(" ", "&nbsp;").replaceAll("\n", "<br>"); } public static String htmlDecoding(String source) { if (source == null) return null; return source.replaceAll("&amp;", "&").replaceAll("&lt;", "<").replaceAll("&gt;", ">").replaceAll("&apos;", "'").replaceAll("&quote;", "\"").replaceAll("&nbsp;", " "); } public static String urlEncode(String str) { if (str == null) return null; StringBuffer tmp = new StringBuffer(); for (int i = 0; i < str.length(); ++i) { char a = str.charAt(i); if (((a < ':') && (a > '/')) || ((a < '[') && (a > '@')) || ((a < '{') && (a > '`')) || (a == '_')) tmp.append(a); else if (a < '\16') tmp.append("%0" + Integer.toHexString(a)); else tmp.append("%" + Integer.toHexString(a)); } return tmp.toString(); } public static String urlDecode(String str) { if (str == null) return null; StringBuffer tmp = new StringBuffer(); for (int i = 0; i < str.length(); ++i) { char a = str.charAt(i); if (a != '%') { tmp.append(a); } else { char tmps = (char)Integer.valueOf(str.substring(i + 1, i + 3), 16).intValue(); i += 2; tmp.append(tmps); } } return tmp.toString(); } public static String toByteString(String source) { byte[] bytes = source.getBytes(); StringBuffer buf = new StringBuffer(bytes.length * 2); for (int i = 0; i < bytes.length; ++i) { if ((bytes[i] & 0xFF) < 16) buf.append("0"); buf.append(Long.toString(bytes[i] & 0xFF, 16)); } return buf.toString(); } public static long inetAtoN(String ip) { long result = 65177412912021504L; try { StringTokenizer st = new StringTokenizer(ip, "."); result += (Long.parseLong(st.nextToken()) << 24); result += (Long.parseLong(st.nextToken()) << 16); result += (Long.parseLong(st.nextToken()) << 8); result += Long.parseLong(st.nextToken()); } catch (Exception e) { return 65178271905480704L; } return result; } public static String inetNtoA(long ip) { StringBuffer result = new StringBuffer(16); result.append(Long.toString(ip >> 24)).append("."); result.append(Long.toString((ip & 0xFFFFFF) >> 16)).append("."); result.append(Long.toString((ip & 0xFFFF) >> 8)).append("."); result.append(Long.toString(ip & 0xFF)); return new String(result); } public static byte[] Int162Array(int sour) { byte[] dest = { (byte)((sour & 0xFF00) >> 8), (byte)(sour & 0xFF) }; return dest; } public static byte[] Int322Array(int sour) { byte[] dest = { (byte)((sour & 0xFF000000) >> 24), (byte)((sour & 0xFF0000) >> 16), (byte)((sour & 0xFF00) >> 8), (byte)(sour & 0xFF) }; return dest; } public static int Array2Int16(byte[] sour, int offset) { return (sour[offset] << 8 & 0xFF00 | sour[(offset + 1)] & 0xFF); } public static int Array2Int32(byte[] sour, int offset) { return (sour[offset] << 24 & 0xFF000000 | sour[(offset + 1)] << 16 & 0xFF0000 | sour[(offset + 2)] << 8 & 0xFF00 | sour[(offset + 3)] & 0xFF); } public static String Int322Ip(int ip) { StringBuffer sb = new StringBuffer(); sb.append(Integer.toString(ip >> 24 & 0xFF)).append('.'); sb.append(Integer.toString(ip >> 16 & 0xFF)).append('.'); sb.append(Integer.toString(ip >> 8 & 0xFF)).append('.'); sb.append(Integer.toString(ip & 0xFF)); return new String(sb); } public static int Ip2Int32(String ip) { String[] sp = ip.split("\\."); int dest = Integer.parseInt(sp[0]) << 24; dest |= Integer.parseInt(sp[1]) << 16; dest |= Integer.parseInt(sp[2]) << 8; dest |= Integer.parseInt(sp[3]); return dest; } public static <K, V> Map<K, V> String2Map(String str, String delim, String pair, Class<K> key, Class<V> value, V def, boolean urlDecode) throws NoSuchMethodException { if (str == null) return null; Map ret = new HashMap(); Constructor kc = key.getConstructor(new Class[] { String.class }); Constructor vc = value.getConstructor(new Class[] { String.class }); StringTokenizer st = new StringTokenizer(str, delim); while (st.hasMoreTokens()) { String kvp = st.nextToken(); int pos = kvp.indexOf(pair); String k = (pos > 0) ? kvp.substring(0, pos) : kvp; String v = (pos > 0) ? kvp.substring(pos + pair.length()) : null; if (urlDecode == true) { k = urlDecode(k); v = urlDecode(v); } try { ret.put(kc.newInstance(new Object[] { k }), (v == null) ? def : vc.newInstance(new Object[] { v })); } catch (Exception ex) { } } return ret; } public static <K, V> String Map2String(Map<K, V> map, String delim, String pair, boolean encode) { i