ireport直接打印报表,不预览精编版

(转)ireport直接打印报表，不预览

2011年02月23日星期三下午 02:06

打印类代码如下:

package com.sofn.struts.report.actions;

import java.io.File;

import java.io.ObjectOutputStream;

import java.util.ArrayList;

import java.util.List;

import java.util.Map;

import javax.naming.Context;

import javax.naming.InitialContext;

import https://www.360docs.net/doc/962067203.html,NotFoundException;

import javax.servlet.ServletOutputStream;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.sql.DataSource;

import net.sf.jasperreports.engine.JRException;

import net.sf.jasperreports.engine.JasperFillManager;

import net.sf.jasperreports.engine.JasperPrint;

import net.sf.jasperreports.engine.JasperPrintManager;

import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;

import org.apache.struts.action.Action;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionForward;

import org.apache.struts.action.ActionMapping;

import com.lowagie.text.ExceptionConverter;

import https://www.360docs.net/doc/962067203.html,erInfoDTO;

import https://www.360docs.net/doc/962067203.html,erInfo;

import https://www.360docs.net/doc/962067203.html,erSessionOperate;

public class ReportViewAction extends Action {

(org.apache.struts.action.ActionMapping, org.apache.struts.action.ActionForm, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)

public ActionForward execute(ActionMapping mapping,ActionForm form, HttpServletRequest request,HttpServletResponse response)

throws Exception {

//已编译文件路径和格式

String fp =this.getServlet().getServletContext().getRealPath("/")+ "report\\jasper\\"+ request.getAttribute("rdoc")+ ".jasper";

File reportFile = new File(fp);

// System.out.println("报表路径!!!!!!!"+reportFile);

Map parameters = (Map) request.getAttribute("paras");

byte[] bytes = null;

List list = new ArrayList();

DataSource ds = null;

JasperPrint jasperPrint=null;

//参数传递

UserSessionOperate uso = new UserSessionOperate();

String user = uso.getUser(request);

UserInfo eidr = new UserInfo();

UserInfoDTO eidrdto = null;

String deptname = "物流部门";

String username = "陈云刚";

parameters.put("marker", username);

parameters.put("bumen", deptname);

//数据库连接

try {

String source = "java:comp/env/jdbc/posuse";

Context ic = null;

if (ic == null)

ic = new InitialContext();

ds = (DataSource) ic.lookup(source);

if (ds == null) {

System.out.println("Reportview----22222!");

}

} catch (NameNotFoundException nfe) {

nfe.toString());

} catch (Exception ne) {

ne.printStackTrace();

}

//使用数据源

if (request.getAttribute("datasource") != null) {

list = (List) request.getAttribute("reportlist");

JRBeanCollectionDataSource jds =new JRBeanCollectionDataSource(list); //使用数据源

}

//使用SQL查询

try {

jasperPrint

=JasperFillManager.fillReport(reportFile.getPath(),parameters,ds.getConnection());//填充报表数据生成JasperPrint对象

JasperPrintManager.printReport(jasperPrint, false);//2008-08-25 直接打印,不用预览PDF直接打印 true为弹出打印机选择.false为直接打印.

} catch (JRException jre) {

//System.out.println("Reportview----JRException88888");

jre.printStackTrace();

} catch (ExceptionConverter ec) {

ec.getLocalizedMessage());

ec.printStackTrace();

} catch (NullPointerException npe) {

npe.getLocalizedMessage());

npe.getMessage());

npe.toString());

System.err);

} catch (Exception ee) {

ee.printStackTrace();

}

//输出

response.setContentType("application/octet-stream");

ServletOutputStream ouputStream = response.getOutputStream(); ObjectOutputStream oos = new ObjectOutputStream(ouputStream);

oos.writeObject(jasperPrint);//将JasperPrint对象写入对象输出流中

oos.flush();

oos.close();

ouputStream.flush();

ouputStream.close();

return mapping.findForward("view"); //转向

}

}

使用技术:Jsp+Struts+Jdk1.6.7+Tomcat5.5+SQLServer2000+iReport2.0.5

从中遇到过两个问题:一是弹出打印机选择;二是弹出自动下载框.

代码中已解决