日期:2014-05-16 浏览次数:20479 次
package info.frady; /** * * 一条IP范围记录,不仅包括国家和区域,也包括起始IP和结束IP * * * @author swallow */ public class IPEntry { public String beginIp; public String endIp; public String country; public String area; /** * 构造函数 */ public IPEntry() { beginIp = endIp = country = area = ""; } public String toString(){ return this.area+" "+this.country+"IP范围:"+this.beginIp+"-"+this.endIp; } }
package info.frady; /* * Created on 2004-8-4 * */ import java.io.UnsupportedEncodingException; /** * @author LJ-silver */ public class Utils { /** * 从ip的字符串形式得到字节数组形式 * @param ip 字符串形式的ip * @return 字节数组形式的ip */ public static byte[] getIpByteArrayFromString(String ip) { byte[] ret = new byte[4]; java.util.StringTokenizer st = new java.util.StringTokenizer(ip, "."); try { ret[0] = (byte)(Integer.parseInt(st.nextToken()) & 0xFF); ret[1] = (byte)(Integer.parseInt(st.nextToken()) & 0xFF); ret[2] = (byte)(Integer.parseInt(st.nextToken()) & 0xFF); ret[3] = (byte)(Integer.parseInt(st.nextToken()) & 0xFF); } catch (Exception e) { System.out.println(e.getMessage()); } return ret; } public static void main(String args[]){ byte[] a=getIpByteArrayFromString(args[0]); for(int i=0;i< a.length;i++) System.out.println(a[i]); System.out.println(getIpStringFromBytes(a)); } /** * 对原始字符串进行编码转换,如果失败,返回原始的字符串 * @param s 原始字符串 * @param srcEncoding 源编码方式 * @param destEncoding 目标编码方式 * @return 转换编码后的字符串,失败返回原始字符串 */ public static String getString(String s, String srcEncoding, String destEncoding) { try { return new String(s.getBytes(srcEncoding), destEncoding); } catch (UnsupportedEncodingException e) { return s; } } /** * 根据某种编码方式将字节数组转换成字符串 * @param b 字节数组 * @param encoding 编码方式 * @return 如果encoding不支持,返回一个缺省编码的字符串 */ public static String getString(byte[] b, String encoding) { try { return new String(b, encoding); } catch (UnsupportedEncodingException e) { return new String(b); } } /** * 根据某种编码方式将字节数组转换成字符串 * @param b 字节数组 * @param offset 要转换的起始位置 * @param len 要转换的长度 * @param encoding 编码方式 * @return 如果encoding不支持,返回一个缺省编码的字符串 */ public static String getString(byte[] b, int offset, int len, String encoding) { try { return new String(b, offset, len, encoding); } catch (UnsupportedEncodingException e) { return new String(b, offset, len); } } /** * @param ip ip的字节数组形式 * @return 字符串形式的ip */ public static String getIpStringFromBytes(byte[] ip) { StringBuffer sb = new StringBuffer(); sb.append(ip[0] & 0xFF); sb.append('.'); sb.append(ip[1] & 0xFF); sb.append('.'); sb.append(ip[2] & 0xFF); sb.append('.'); sb.append(ip[3] & 0xFF); return sb.toString(); } }
package info.frady; /* * LumaQQ - Java QQ Client * * Copyright (C) 2004 luma < stubma@163.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *