JasperReport jasperReport = JasperCompileManager.compileReport(context.getRealPath("/reports/WebappReport.jrxml"));
JasperPrint jasperPrint =
JasperFillManager.fillReport(jasperReport, parameters, datasource(自己的));
bytes = JasperExportManager.exportReportToPdf(jasperPrint);?
response.setHeader("Content-Disposition","attachment;filename=JasperPDF.pdf");
// 设置页面的输出格式
response.setHeader("Content-Type", "application/pdf");
response.setContentLength(bytes.length);
ServletOutputStream ouputStream = response.getOutputStream();
ouputStream.write(bytes, 0, bytes.length);
ouputStream.flush();
ouputStream.close();以供参考
JasperPrint jasperPrint =
JasperFillManager.fillReport(jasperReport, parameters, datasource(自己的));
bytes = JasperExportManager.exportReportToPdf(jasperPrint);?
response.setHeader("Content-Disposition","attachment;filename=JasperPDF.pdf");
// 设置页面的输出格式
response.setHeader("Content-Type", "application/pdf");
response.setContentLength(bytes.length);
ServletOutputStream ouputStream = response.getOutputStream();
ouputStream.write(bytes, 0, bytes.length);
ouputStream.flush();
ouputStream.close();以供参考
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<%@ page import="java.util.*" %>
<%@ page import="java.io.*" %>
<%@ page import="com.sterning.*" %>
<%@ page import="net.sf.jasperreports.engine.JasperFillManager"%>
<%@ page import="net.sf.jasperreports.engine.JasperPrint"%>
<%@ page import="net.sf.jasperreports.engine.JRException"%>
<%@ page import="net.sf.jasperreports.engine.JasperRunManager,net.sf.jasperreports.engine.data.JRBeanCollectionDataSource"%>
<% //装载jasper文件application
// File exe_rpt = new File(request.getRealPath("/jasper/jasper_template.jasper"));
File exe_rpt = new File("E:\\aa.jasper");
List myList;
//添加数据
PeopleBean p1=new PeopleBean("长沙", new Integer(9), "李化", "天洒路");
PeopleBean p2=new PeopleBean("长沙", new Integer(22), "王小样", "呆小路564");
PeopleBean p3=new PeopleBean("南昌", new Integer(23), "王奸可", "小顺路");
PeopleBean p4=new PeopleBean("南昌", new Integer(32), "李洒", "顺濉路");
PeopleBean p5=new PeopleBean("武汉", new Integer(39), "张中尖", "天洒路");
PeopleBean p6=new PeopleBean("武汉", new Integer(35), "陈主宁", "天河路564");
myList = new ArrayList();
myList.add(p1);
myList.add(p2);
myList.add(p3);
myList.add(p4);
myList.add(p5);
myList.add(p6);
//rptMan就是iReport的变量$P{rptMan}的名称 , rptDate就是iReport的变量$P{rptDate}的名称
Map pram = new HashMap();
pram.put("rptMan","pdf");
pram.put("rptDate","2008-8-8");
try{
// fill
JasperPrint jasperPrint = JasperFillManager.fillReport(exe_rpt.getPath(),pram,new JRBeanCollectionDataSource(myList));
// 生成pdf
byte[] bytes = JasperRunManager.runReportToPdf(exe_rpt.getPath(),pram,new JRBeanCollectionDataSource(myList));
response.setContentType("application/pdf");
response.setContentLength(bytes.length);
ServletOutputStream ouputStream = response.getOutputStream();
ouputStream.write(bytes,0,bytes.length);
ouputStream.flush();
ouputStream.close();
}catch(JRException ex){
out.print("Jasper Output Error:"+ex.getMessage());
}
%>
}结果页面上输出
Jasper Output Error:Error loading object from file : E:\aa.jasper } 希望大家能够尽快帮忙解决啊
<action name="pdf" class="com.siant.certmail.web.action.ManagerInvokerAction" method="executePDF">
<result name="success" type="jasper">
<param name="location">/jasper/jasper_template.jasper</param>
<param name="dataSource">myList</param>
<param name="format">PDF</param>
</result>
</action>
加载不成功,你的路径问题。
LZ把E:\aa.jasper的路径换到eclipse的WebRoot下。比如在WebRoot下建个reports的包,把aa.jasper放这里。
File reportFile = new File(application.getRealPath("reports/aa.jasper"));
<action name="pdf" class="com.siant.certmail.web.action.ManagerInvokerAction" method="executePDF">
<result name="success" type="jasper">
<param name="location">/jasper/jasper_template.jasper </param>
<param name="dataSource">myList </param>
<param name="format">PDF </param>
</result>
</action>可以传递一个List作为数据显示,但iReport里面设计的$F{userName}参数 怎样通过action来传递给jasper报表
最好是党办机关的
8错的群