Jsp passing parameter to jrxml show pdf have some problem

[free576002]

I want pass parameter to jrxml

when I pass to , I alway get empty pdf.

and haven't any error message

So I don't know where have problem and how to fix it

But if  I don't pass after  and use sql command  it's can work

I guess maybe is pass to jrxml after sql research conditon have error.

it's my show.jsp

Map Parameter = new HashMap();  

Parameter.put("ID","A11");

System.out.println(String.valueOf(Parameter));

JasperReport jasperReport = JasperCompileManager.compileReport(input);

JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, Parameter, conn);

 

and this my jrxml

<parameter name="ID" class="java.lang.String" ></parameter>

<queryString>

<![CDATA[select * from person where ID = '$P!{ID}']]>

</queryString>