JasperReport+Servlet Web使用之：导PDF,Excel,Rtf文件

第一，二，三，四步请参照：JasperReport+Servlet Web应用之：打印

导PDF文件的Servlet如下：

package com.mengya.servlet;

import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.ServletContext;
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.JRException;
import net.sf.jasperreports.engine.JRExporterParameter;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.export.JRPdfExporter;
import net.sf.jasperreports.engine.util.FileBufferedOutputStream;
import net.sf.jasperreports.engine.util.JRLoader;

import com.mengya.JRDataSource.PersonDataSource;

public class JRPDFServlet extends HttpServlet {

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

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		ServletContext servletContext = this.getServletConfig()
				.getServletContext();
		File jasperFile = new File(servletContext
				.getRealPath("/jasper/preson.jasper"));
		Map<String, String> parameters = new HashMap<String, String>();
		parameters.put("year", "2009");
		parameters.put("unit_mc", "武汉XX科技有限公司");
		JasperPrint jasperPrint = null;
		try {
			JasperReport jasperReport = (JasperReport) JRLoader
					.loadObject(jasperFile.getPath());
			jasperPrint = JasperFillManager.fillReport(jasperReport,
					parameters, new PersonDataSource());
		} catch (JRException e) {
			e.printStackTrace();
		}
		if (null != jasperPrint) {
			FileBufferedOutputStream fbos = new FileBufferedOutputStream();
			JRPdfExporter exporter = new JRPdfExporter();
			exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, fbos);
			exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
			try {
				exporter.exportReport();
				fbos.close();
				if (fbos.size() > 0) {
					response.setContentType("application/pdf");
					response.setContentLength(fbos.size());
					ServletOutputStream ouputStream = response.getOutputStream();
					try {
						fbos.writeData(ouputStream);
						fbos.dispose();
						ouputStream.flush();
					} finally {
						if (null != ouputStream) {
							ouputStream.close();
						}
					}
				}
			} catch (JRException e1) {
				e1.printStackTrace();
			}finally{
				if(null !=fbos){
					fbos.close();
					fbos.dispose();
				}
			}
		}
	}
}

?

导Excel文件的Servlet如下：

public class JRJXLServlet extends HttpServlet {

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

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		ServletContext context = this.getServletConfig().getServletContext();
		File jasperFile = new File(context.getRealPath("/jasper/preson.jasper"));
		Map<String, String> parameters = new HashMap<String, String>();
		parameters.put("year", "2009");
		parameters.put("unit_mc", "武汉XX科技有限公司");
		JasperPrint jasperPrint = null;
		try {
			JasperReport jasperReport = (JasperReport) JRLoader
					.loadObject(jasperFile);
			jasperPrint = JasperFillManager.fillReport(jasperReport, parameters,
					new PersonDataSource());
		} catch (JRException e) {
			e.printStackTrace();
		}
		if(null != jasperPrint){
			FileBufferedOutputStream fbos = new FileBufferedOutputStream();
			JRXlsAbstractExporter exporter = new JExcelApiExporter();
			exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, fbos);
			exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
			exporter.setParameter(JRXlsAbstractExporterParameter.IS_ONE_PAGE_PER_SHEET, Boolean.FALSE);
			exporter.setParameter(JRXlsAbstractExporterParameter.IS_WHITE_PAGE_BACKGROUND, Boolean.FALSE);
			try {
				exporter.exportReport();
				fbos.close();
				if (fbos.size() > 0) {
					response.setContentType("application/exl");
					response.setHeader("Content-Disposition", "inline; filename=\"persons.xls\"");
					response.setContentLength(fbos.size());
					ServletOutputStream ouputStream = response.getOutputStream();
					try {
						fbos.writeData(ouputStream);
						fbos.dispose();
						ouputStream.flush();
					} finally {
						if (null != ouputStream) {
							ouputStream.close();
						}
					}
				}
			} catch (JRException e1) {
				e1.printStackTrace();
			}finally{
				if(null !=fbos){
					fbos.close();
					fbos.dispose();
				}
			}
		}
	}

}

?

导rtf文件的servlet如下：

public class JRRTFServlet extends HttpServlet {

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

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		ServletContext context = this.getServletConfig().getServletContext();
		File jasperFile = new File(context.getRealPath("/jasper/preson.jasper"));
		Map<String, String> parameters = new HashMap<String, String>();
		parameters.put("year", "2009");
		parameters.put("unit_mc", "武汉XX科技有限公司");
		JasperPrint jasperPrint = null;
		try {
			JasperReport jasperReport = (JasperReport) JRLoader
					.loadObject(jasperFile);
			jasperPrint = JasperFillManager.fillReport(jasperReport, parameters,
					new PersonDataSource());
		} catch (JRException e) {
			e.printStackTrace();
		}
		if(null != jasperPrint){
			FileBufferedOutputStream fbos = new FileBufferedOutputStream();
			JRRtfExporter exporter = new JRRtfExporter();
			exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, fbos);
			exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
			try {
				exporter.exportReport();
				fbos.close();
				if (fbos.size() > 0) {
					response.setContentType("application/rtf");
					response.setHeader("Content-Disposition", "inline; filename=\"person.rtf\"");
					response.setContentLength(fbos.size());
					ServletOutputStream ouputStream = response.getOutputStream();
					try {
						fbos.writeData(ouputStream);
						fbos.dispose();
						ouputStream.flush();
					} finally {
						if (null != ouputStream) {
							ouputStream.close();
						}
					}
				}
			} catch (JRException e1) {
				e1.printStackTrace();
			}finally{
				if(null !=fbos){
					fbos.close();
					fbos.dispose();
				}
			}
		}
	}

}

?

该Servlet在web.xml配置如下：

<servlet>
		<servlet-name>JRPDFServlet</servlet-name>
		<servlet-class>com.mengya.servlet.JRPDFServlet</servlet-class>
	</servlet>
	<servlet>
		<servlet-name>JREXLServlet</servlet-name>
		<servlet-class>com.mengya.servlet.JREXLServlet</servlet-class>
	</servlet>
	<servlet>
		<servlet-name>JRRTFServlet</servlet-name>
		<servlet-class>com.mengya.servlet.JRRTFServlet</servlet-class>
	</servlet>
	<servlet-mapping>
		<servlet-name>JRPDFServlet</servlet-name>
		<url-pattern>/JRPDFServlet</url-pattern>
	</servlet-mapping>
	<servlet-mapping>
		<servlet-name>JREXLServlet</servlet-name>
		<url-pattern>/JREXLServlet</url-pattern>
	</servlet-mapping>
	<servlet-mapping>
		<servlet-name>JRRTFServlet</servlet-name>
		<url-pattern>/JRRTFServlet</url-pattern>
	</servlet-mapping>

?页面调用如下：

h3><a href="JRPDFServlet">导出PDF文件</a></h3>
  		<br>
  		<h3><a href="JREXLServlet">导出EXL文件</a></h3>
  		<br>
  		<h3><a href="JRRTFServlet">导出RTF文件</a></h3>
  		<br>

??