将Number类型的数据转换成String型后输出的两种方式

将Number类型的数据转换成String型后输出的两种方式：
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         <%
        String temp= "0";
         java.text.DecimalFormat f ;
         if (!(h.get("cylindervol")==null || h.get("cylindervol") .equals("")))
        {
                  temp =String.valueOf(h.get("cylindervol")) ;
                    if(Double.parseDouble(temp)==0){
                 temp="";
                }
                  else{
                         f = new java.text.DecimalFormat("0.00");
                   temp =  f.format( Double.parseDouble(temp)  );
                     }
         }
            else {
           temp="";
         }
                 %>
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在View页里对number类型的输也处理。
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                <TD class="bYellow6">效用年限</TD>
                <TD><span class="fContent">
                  <%
                  String price="0";
                  java.text.DecimalFormat df = new java.text.DecimalFormat("###");
                             double d = Double.parseDouble(String.valueOf(well.getMaxlife()));
                             if(d==0.0){
                               price="";
                               }
                             else if ( d!=0.0 ){
                               price = df.format( d );
                              }
                  %>
                  <%=price%></span></TD>