自定义EL表达式的函数

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/**
* 自定义EL表达式的函数
* @author Administrator
*
*/

public class Functions {

   public static String clob2String(Object object){
       java.sql.Clob clob=null;
       if(object ==null)return "";
       if(object instanceof java.sql.Clob){
           clob=(java.sql.Clob)object;
       }else{
           return object.toString();
       }
       StringBuffer sb=new StringBuffer();
          try{
              if ( clob != null )
              {
                    java.io.Reader is = clob.getCharacterStream ();
                    java.io.BufferedReader br = new java.io.BufferedReader ( is );
                    String s;
                    while ((s=br.readLine ())!= null )
                    {
                       if(sb.length()==0){
                           sb.append(s) ;
                       }
                       else{
                           sb.append("\r\n"+s) ;
                       }
                    }
                    is.close();
                    br.close();
              }
              else{
                  return null;
              }
          }
          catch(Exception e){
              System.out.print(e);
              return null;
          }
          return sb.substring(0);
   }

   public static String clob2StringEscapeHTML(Object object){
       java.sql.Clob clob=null;
       if(object ==null)return "";
       if(object instanceof java.sql.Clob){
           clob=(java.sql.Clob)object;
       }else{
           return object.toString();
       }
       StringBuffer sb=new StringBuffer();
          try{
              if ( clob != null )
              {
                    java.io.Reader is = clob.getCharacterStream ();
                    java.io.BufferedReader br = new java.io.BufferedReader ( is );
                    String s;
                    while ((s=br.readLine ())!= null )
                    {
                       if(sb.length()==0){
                           sb.append(s) ;
                       }
                       else{
                           sb.append("<br/>"+s);
                       }
                    }
                    is.close();
                    br.close();
              }
              else{
                  return null;
              }
          }
          catch(Exception e){
              System.out.print(e);
              return null;
          }

          String str=sb.substring(0);
          str=str.replace(" ", " ");
          return str;
   }
   /**
   * 隐藏IP地址的后两位
   * @param ipAddress
   * @return
   */
   public static String hiddenIP(String ipAddress){
       return ipAddress.replaceAll("\\.\\d{1,3}\\.\\d{1,3}$", ".*.*");
   }

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