//bean file 

package loveJSP; 

public class encodeHtml 

{ 

      private String html="no input html"; 



      public String getHtml() 

      { 

            return HTMLEncode(html); 

      } 

      public void setHtml(String html) 

      { 

            this.html = html ; 

      } 

      private static String HTMLEncode(String text) 

      { 

            if (text==null) 

            return ""; 

            StringBuffer results = null; 

            char[] orig = null; 

            int beg = 0,len=text.length(); 

            for (int i=0;i
            { 

                  char c = text.charAt(i); 

                  switch(c){ 

                        case 0: 

                        case "&": 

                        case "<": 

                        case ">": 

                        case """: 

                              if (results == null) 

                              { 

                                    orig = text.toCharArray(); 

                                    results = new StringBuffer(len+10); 

                              } 

                              if (i>beg) 

                              results.append(orig,beg,i-beg); 

                              beg = i + 1; 

                              switch (c) 

                              { 

                                    default : continue; 

                                    case "&": results.append("&"); break; 

                                    case "<": results.append("<"); break; 

                                    case ">": results.append(">"); break; 

                                    case """: results.append("""); break; 

                              } 

                        break; 

                  } //switch 

            }// for i 

            if (results == null) 

                  return text; 

            results.append(orig,beg,len-beg); 

            return results.toString(); 

      }// HTMLEncode 

}