java 打印报表问题（客户端打印）

求大神帮忙，要求：Java，写一个打印报表的功能！我已经用iReport制作了报表生成了 .jrxml文件，我设置的数据源是 Database JDBC，数据已经使用SQL语句加载进去了，现在只要通过java调用这个文件进行编译打印就可以了，还要实现一下预览，不知道代码怎么编写，拜托大神帮忙，非常感谢！
图片说明

是在jsp里面用么？这里有个生成网页预览的代码；

 Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ page
    import="java.io.*,
            net.sf.jasperreports.engine.*,
            net.sf.jasperreports.engine.util.*,
            java.util.*,java.sql.*,
            net.sf.jasperreports.engine.export.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
    File reportFile = new File(application
            .getRealPath("jasper/Test2.jasper"));
    JasperReport jasperReport = (JasperReport) JRLoader
            .loadObject(reportFile.getPath());
    Map parameters = new HashMap();
    parameters.put("para1", "AAA");
    Class.forName("com.mysql.jdbc.Driver");
    Connection conn = DriverManager.getConnection(
            "jdbc:mysql://localhost:3306/phpcms", "root", "root");
    JasperPrint jasperPrint = JasperFillManager.fillReport(
            jasperReport, parameters, conn);
    JRHtmlExporter exporter = new JRHtmlExporter();
    exporter
            .setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
    exporter.setParameter(JRExporterParameter.OUTPUT_WRITER, out);

    exporter.setParameter(JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, Boolean.FALSE);
    exporter.exportReport();
    out.flush();    
    conn.close();
%>
</body>
</html>

ref: https://www.cnblogs.com/micki/archive/2010/05/17/1737592.html