codefilter.java

基于JAVA的学生就业信息网 实现对信息浏览 检索 审核 修改和删除

/*
 * Created on 2005-6-29
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package org.ug.sztz.domain.assistant;

/**
 * @author Administrator
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class CodeFilter
{

 public CodeFilter()
 {
 }

 public static String change(String s)
 {
     s = toHtml(s);
     return s;
 }

 public static String toHtml(String s)
 {
     s = Replace(s, "&", "&");
     s = Replace(s, "<", "&lt;");
     s = Replace(s, ">", "&gt;");
     s = Replace(s, "\t", "    ");
     s = Replace(s, "\r\n", "\n");
     s = Replace(s, "\n", "<br>");
     s = Replace(s, "  ", " &nbsp;");
     s = Replace(s, "'", "&#39;");
     s = Replace(s, "\\", "&#92;");
     return s;
 }

 public static String unHtml(String s)
 {
     s = Replace(s, "<br>", "\n");
     s = Replace(s, "&nbsp;", " ");
     return s;
 }

 public static String Replace(String s, String s1, String s2)
 {
     if(s == null)
         return null;
     StringBuffer stringbuffer = new StringBuffer();
     int i = s.length();
     int j = s1.length();
     int k;
     int l;
     for(k = 0; (l = s.indexOf(s1, k)) >= 0; k = l + j)
     {
         stringbuffer.append(s.substring(k, l));
         stringbuffer.append(s2);
     }

     if(k < i)
         stringbuffer.append(s.substring(k));
     return stringbuffer.toString();
 }
}