ireport在jsp中的呼叫例子
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%@ page import="java.io.*,java.sql.*,net.sf.jasperreports.engine.*" %>
<%@ page import="com.microsoft.sqlserver.jdbc.SQLServerDriver" %>
<%@ include file="/common/header.jsp" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "
<html>
<head>
<title>報表列印</title>
<link rel="stylesheet" type="text/css" href="<s:property value="%{default_css}"/>" />
</head>
<body id="Body">
<%
String reportName = request.getParameter("reportName");
//報表編譯之後的.jasper檔案的存放位置
File reportFile = new File(application.getRealPath("/report/resource/jasper/"+reportName+".jasper"));
String url = "jdbc:sqlserver://liubin:1433;DatabaseName=db_forest_police";
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver").newInstance();
//傳遞報表中用到的引數值，這裡是空值
Map parameters = new HashMap();
System.out.println("-----------conn---------");
//連線到資料庫
System.out.println("----------jasper begin-----------");
//在控制檯列印報表檔案的物理路徑
System.out.println("****物理路徑 ***"+reportFile.getPath());
byte[]bytes = JasperRunManager.runReportToPdf(reportFile.getPath(),parameters,conn);
System.out.println("---------jasper end-------");
response.setContentType("application/pdf");
response.setContentLength(bytes.length);
//清除輸出物件的衝突（因jsp本身有自己的out輸出物件，如果去除下面的語句，則response.getOutputStream()得到的輸出物件與原來存在的out物件衝突，會報異常）
out.clear();out=pageContext.pushBody();
ServletOutputStream output = response.getOutputStream();
output.write(bytes,0,bytes.length);
output.flush();
output.close();
try{
if(conn!=null){
conn.close();
}
}catch(Exception e){
e.printStackTrace();
}
%>
</body>
</html>