ireport客户端打印

 

Ireport客户端打印

1. 新建一个web项目Outireport。如图：

 

 

2. 向lib导入ireport报表需要的包jasperreports-4.0.2.jar, jasperreports-applet-4.0.2.jar, commons-collections-2.1.jar, commons-logging-1.0.2.jar, groovy-all-1.7.5.jar, iText-2.1.7.jar, iTextAsian.jar（这几个表可能有个别包不是必须）。如图：

 

3. 在WebRoot中新建一个名为ireport的目录，里面存放打印的ireport报表，我这里是一个用户的报表。如图：

 

4. 在src中新建一个applet的目录，在applet中新建一个名为IreportServlet.java的servlet。代码如下：

 

package applet;

import java.io.File;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import net.sf.jasperreports.engine.util.JRLoader;

public class IreportServlet extends HttpServlet {

private static final long serialVersionUID = 1L;
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
}

protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
this.doPost(request, response);
}

protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
List list=new ArrayList();
try{
Users users=null;
for(int i=0;i<2;i++)
{
users=new Users();
users.setUserName("yzp"+i);
users.setSex(""+i);
users.setPhone("13410479904");
users.setPhone("19890214");
list.add(users);

}
JRBeanCollectionDataSource jds =new JRBeanCollectionDataSource(list); //使用javabean数据源
String url=this.getServletContext().getRealPath("/")+"/ireport/users.jasper";//报表模板的文件路径
File reportFile = new File(url);
JasperReport report=(JasperReport) JRLoader.loadObject(reportFile.getPath());
JasperPrint jasperPrint=null;

jasperPrint= JasperFillManager.fillReport(report, null, jds);//将所有的数据填充到jasperPrint,形成正常的报表
response.setContentType("application/pdf");
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();
}catch(Exception e)
{
e.printStackTrace();
}
}
}

package applet;

import java.io.File;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import net.sf.jasperreports.engine.util.JRLoader;

public class IreportServlet extends HttpServlet {

	private static final long serialVersionUID = 1L;
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
	}

	protected void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		this.doPost(request, response);
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		List list=new ArrayList();
		try{
			Users users=null;
			for(int i=0;i<2;i++)
			{
				users=new Users();
				users.setUserName("yzp"+i);
				users.setSex(""+i);
				users.setPhone("13410479904");
				users.setPhone("19890214");
				list.add(users);
				
			}
			JRBeanCollectionDataSource jds =new JRBeanCollectionDataSource(list);  //使用javabean数据源
			String url=this.getServletContext().getRealPath("/")+"/ireport/users.jasper";//报表模板的文件路径
			File reportFile = new File(url);
			JasperReport report=(JasperReport) JRLoader.loadObject(reportFile.getPath());
			JasperPrint jasperPrint=null;

			jasperPrint= JasperFillManager.fillReport(report, null, jds);//将所有的数据填充到jasperPrint,形成正常的报表
			response.setContentType("application/pdf"); 
			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(); 
		}catch(Exception e)
		{
			e.printStackTrace();
		}
	}
}