Java加密JS

package com.ks.tools;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * @author 李英夫
 * @ClassName AntiCopy
 * @Version 
 * @ModifiedBy
 * @Copyright @ 2010 H&L Technology Inc.
 * @date 2010-6-3 上午08:39:47
 * @description
 */
public class AntiCopy {
	private static int A = 62;
	private static Map<String, String> STYLE = new HashMap<String, String>();
	//初始化加载,有其它操作时在里面添加
	static{
		STYLE.put("WA", "window.alert");
		STYLE.put("DW", "document.write");
	}
	/**
	 * function encode() {
	 *     var code = document.getElementById('code').value;
     *     code = code.replace(/[\r\n]+/g, '');
	 *     code = code.replace(/'/g, "\\'");
	 *     var tmp = code.match(/\b(\w+)\b/g);
	 *     tmp.sort();
	 *     var dict = [];
	 *     var i, t = '';
	 *     for(var i=0; i<tmp.length; i++) {
	 *         if(tmp[i] != t) dict.push(t = tmp[i]);
	 *     }
	 *     var len = dict.length;
	 *     var ch;
	 *     for(i=0; i<len; i++) {
	 *         ch = num(i);
	 *         code = code.replace(new RegExp('\\b'+dict[i]+'\\b','g'), ch);
	 *         if(ch == dict[i]) dict[i] = '';
	 *     }
	 *     document.getElementById('code').value = "eval(function(p,a,c,k,e,d){e=function(c){return(c<a?'':e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--)d[e(c)]=k[c]||e(c);k=[function(e){return d[e]}];e=function(){return'\\\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\\\b'+e(c)+'\\\\b','g'),k[c]);return p}("
	 *     + "'"+code+"',"+a+","+len+",'"+ dict.join('|')+"'.split('|'),0,{}))";
	 * }
	 * 
	 * function num(c) {
	 *     return(c<a?'':num(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36));
	 * }
	 */
	/**
	 * Javascript代码混淆器,参照Javascript代码所写.
	 * @author 李英夫 (2010-6-7 下午01:32:27)
	 * @param JSCode Javascript代码
	 * @return String 返回加密码后的代码
	 */
	private static String JSCodeConfuser(String JSCode){
    	String code = JSCode, t = "", ch = "";
    	List<String> list = new ArrayList<String>(), dict = new ArrayList<String>();
    	/**
    	 * 1.Java中四个\代表一个在传化时还要多添一个\才不会错
    	 * 2.去换行
    	 * 3.不能将\"替换掉
    	 * 4.将'变成\'
    	 */
    	code = code.replaceAll("\\\\", "\\\\\\\\").replaceAll("\r\n", "").replaceAll("[^\"]\\\\", "＼").replaceAll("'", "\\\\'");
    	Pattern p = Pattern.compile("(?m)\\b(\\w+)\\b");
        Matcher matcher = p.matcher(code);
        while (matcher.find())  list.add(matcher.group());
        String[] rs = (String[]) list.toArray(new String[list.size()]);
        Arrays.sort(rs);
        for(int i = 0;i < rs.length; i++){
        	if(!rs[i].equals(t)){
        		t = rs[i];
        		dict.add(t);
        	}
        }
        int len = dict.size();
        for(int i = 0; i < len; i++){
        	ch = num(i);
        	code = code.replaceAll("\\b"+dict.get(i)+"\\b", ch);
        	if(ch.equals(dict.get(i))) {
        		dict.remove(i);
        		dict.add(i, "");
        	}
        }
        StringBuffer dictStr = new StringBuffer();
        for(int i = 0; i < dict.size(); i++) dictStr.append(dict.get(i)).append("|");
        String temp = dictStr.toString().substring(0, dictStr.toString().length()-1);
        return "eval(function(p,a,c,k,e,d){e=function(c){return(c<a?'':e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--)d[e(c)]=k[c]||e(c);k=[function(e){return d[e]}];e=function(){return'\\\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\\\b'+e(c)+'\\\\b','g'),k[c]);return p}("
        	+ "'"+code+"',"+A+","+len+",'"+ temp +"'.split('|'),0,{}))";
    }
	
	/**
	 * 参照Javascript代码
	 * @author 李英夫(2010-6-7 下午01:32:27)
	 * @param c
	 * @return String
	 */
	private static String num(int c) {
    	return(c<A?"":num((int)(c/A)))+((c=c%A)>35?(char)(c+29):Integer.toString(c,36));
    }
	
	 /**
     * 字符串转Unicode(Javascript专用%u形式)
     * @author 李英夫(2010-6-7 下午01:53:05)
     * @param str
     * @return String
     */
    private static String stringToUnicode(String str){
    	StringBuffer unStr = new StringBuffer();
    	for(char c : str.toCharArray()){    
    		//只转汉字
    		String cStr = c+"";
    		if(cStr.matches("[^\\x00-\\xff]")) unStr.append("%u" + Integer.toHexString(c));
    		else unStr.append(c);
        }   
    	return unStr.toString();
    }
    
    /**
     * Unicode转字符串(Javascript专用%u形式)
     * @author 李英夫(2010-6-7 下午01:50:50)
     * @param str
     * @return String
     */
    private static String unicodeToString(String str) {    
        Pattern pattern = Pattern.compile("(%u(\\p{XDigit}{4}))");    
        Matcher matcher = pattern.matcher(str);    
        char ch;    
        while (matcher.find()) {     
            ch = (char) Integer.parseInt(matcher.group(2), 16);     
            str = str.replace(matcher.group(1), ch + "");    
        }    
        return str;   
    }   
    
	/**
	 * 加密(默认)
	 *     默认是document.write,以后功能多了可以重载这个方法,
	 *     可以加一个参数encrypted(String content, String style),
	 *     如:window.alert
	 * @author 李英夫(2010-6-7 下午01:53:47)
	 * @param content 内容
	 * @return String 返回Javascript代码的加密形式
	 */
	public static String encrypted(String content){
		String s = STYLE.get("DW")+"(unescape('" + stringToUnicode(content) + "'));";
		return JSCodeConfuser(s);
	}
	
	/**
	 * 加密重载
	 * @author 李英夫(2010-6-7 下午02:00:53)
	 * @param content 内容
	 * @param style 方式
	 * @return String 返回Javascript代码的加密形式,
	 * @throws Exception String
	 */
	private static String encrypted(String content, String style)throws Exception{
		if(null == STYLE.get(style)) throw new Exception("this style,"+style+",is not unavailable!");
		String s = STYLE.get(style)+"(unescape('" + stringToUnicode(content) + "'));";
		return JSCodeConfuser(s);
	}
    public static void main(String[] args)throws Exception{
//    	/**
//    	 * 问题代码
//    	 */
////    	String chinese = "<pre> public static String UnicodeToString(String str) {"
////		    	+"Pattern pattern = Pattern.compile(\"\\\");"
////		        +"Matcher matcher = pattern.matcher(str);//这是一个注释，。！~·！#￥%……——*（）"    
////		        +"char ch;//这是一个注释ㄆㄊㄍㄐㄗぬねノハヒ】〈〕》〗）］｛』」＇＂∶‖～々”“’‘｀｜＇〃"    
////		        +"while (matcher.find()) {//这是一个注释 "    
////		        +"ch = (char) Integer.parseInt(matcher.group(2), 16);//这是一个注释"     
////		        +"str = str.replace(matcher.//这是一个注释group(1), ch + \");//这是一个注释"   
////		        +"}"   
////		        +"return str;"   
////		        +"}</pre>"; 
    	String chinese ="<li>&nbsp;A.&nbsp;慢性肾小球肾炎肾病型</li><li>&nbsp;B.&nbsp;慢性肾炎晚期</li><li>&nbsp;C.&nbsp;慢性肾炎急性发作</li><li>&nbsp;D.&nbsp;间质性肾炎</li><li>&nbsp;E.&nbsp;肾肿瘤</li>";
    	System.out.println(encrypted(chinese));
    }
}