scriptfilter.java

一个用jsp写的完整的论坛源代码

package com.bcxy.bbs.filter;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Title:
 * Description:
 * Copyright:
 * Company: www.liyunet.com
 * 
 * @author lishujiang	
 * @version 1.0
 */

public class ScriptFilter extends Filter {

	public ScriptFilter(String s) {
		super(s);
	}

	public ScriptFilter() {
	}

	public String convertString() {
		return codeConverter();
	}

	public String codeConverter() {
		StringBuffer sb = new StringBuffer();
		String reg = "(<script(.)*>)(.[^\\[]*)(<\\/script>)";
		Pattern p = Pattern.compile(reg, Pattern.CASE_INSENSITIVE);
		Matcher m = p.matcher(s);
		boolean result = m.find();
		while (result) {
			m.appendReplacement(sb,"");
			result = m.find();
		}
		m.appendTail(sb);
		return sb.toString();
	}	
}