Ireport 报表导出 Poi + ireport 导出pdf, doc ,excel ,html 格式
下面是报表导出工具类reportExportUtils 需要导出以上格式的报表 只需要调用本工具类的exportmain 方法即可。
import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.lang.reflect.Field; import java.util.Collection; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.servlet.ServletOutputStream; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import net.sf.jasperreports.engine.JRDataSource; import net.sf.jasperreports.engine.JRException; import net.sf.jasperreports.engine.JRExporter; import net.sf.jasperreports.engine.JRExporterParameter; import net.sf.jasperreports.engine.JasperExportManager; import net.sf.jasperreports.engine.JasperFillManager; import net.sf.jasperreports.engine.JasperPrint; import net.sf.jasperreports.engine.JasperReport; import net.sf.jasperreports.engine.base.JRBaseReport; import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource; import net.sf.jasperreports.engine.export.JRHtmlExporter; import net.sf.jasperreports.engine.export.JRHtmlExporterParameter; import net.sf.jasperreports.engine.export.JRRtfExporter; import net.sf.jasperreports.engine.export.JRXlsExporter; import net.sf.jasperreports.engine.export.JRXlsExporterParameter; import net.sf.jasperreports.engine.util.JRLoader; import org.apache.commons.lang.StringUtils; import org.apache.log4j.Logger; import org.apache.struts2.ServletActionContext; import com.opensymphony.xwork2.ActionContext; @SuppressWarnings("unchecked") public class JasperUtils { private static Logger logger = Logger.getLogger(JasperUtils.class); public static final String PRINT_TYPE = "print"; public static final String PDF_TYPE = "pdf"; public static final String EXCEL_TYPE = "excel"; public static final String HTML_TYPE = "html"; public static final String WORD_TYPE = "word"; public static void prepareReport(JasperReport jasperReport, String type) { logger .debug("The method======= prepareReport() start......................."); /* * 如果导出的是excel，则需要去掉周围的margin */ if ("excel".equals(type)) try { Field margin = JRBaseReport.class .getDeclaredField("leftMargin"); margin.setAccessible(true); margin.setInt(jasperReport, 0); margin = JRBaseReport.class.getDeclaredField("topMargin"); margin.setAccessible(true); margin.setInt(jasperReport, 0); margin = JRBaseReport.class.getDeclaredField("bottomMargin"); margin.setAccessible(true); margin.setInt(jasperReport, 0); Field pageHeight = JRBaseReport.class .getDeclaredField("pageHeight"); pageHeight.setAccessible(true); pageHeight.setInt(jasperReport, 2147483647); } catch (Exception exception) { } } /** * 导出excel */ public static void exportExcel(JasperPrint jasperPrint, String defaultFilename, HttpServletRequest request, HttpServletResponse response) throws IOException, JRException { logger .debug("执行导出excel The method======= exportExcel() start......................."); /* * 设置头信息 */ response.setContentType("application/vnd.ms-excel"); String defaultname = null; if (defaultFilename.trim() != null && defaultFilename != null) { defaultname = defaultFilename + ".xls"; } else { defaultname = "export.xls"; } String fileName = new String(defaultname.getBytes("gbk"), "utf-8"); response.setHeader("Content-disposition", "attachment; filename=" + fileName); ServletOutputStream ouputStream = response.getOutputStream(); JRXlsExporter exporter = new JRXlsExporter(); exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint); exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, ouputStream); exporter.setParameter( JRXlsExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS, Boolean.TRUE); exporter.setParameter(JRXlsExporterParameter.IS_ONE_PAGE_PER_SHEET, Boolean.FALSE); exporter.setParameter(JRXlsExporterParameter.IS_WHITE_PAGE_BACKGROUND, Boolean.FALSE); exporter.exportReport(); ouputStream.flush(); ouputStream.close(); } /** * 导出pdf，注意此处中文问题， * * 这里应该详细说：主要在ireport里变下就行了。看图 * * 1）在ireport的classpath中加入iTextAsian.jar 2）在ireport画jrxml时，看ireport最左边有个属性栏。 * * 下边的设置就在点字段的属性后出现。 pdf font name ：STSong-Light ，pdf encoding ：UniGB-UCS2-H */ private static void exportPdf(JasperPrint jasperPrint, String defaultFilename, HttpServletRequest request, HttpServletResponse response) throws IOException, JRException { response.setContentType("application/pdf"); String defaultname = null; if (defaultFilename.trim() != null && defaultFilename != null) { defaultname = defaultFilename + ".pdf"; } else { defaultname = "export.pdf"; } String fileName = new String(defaultname.getBytes("GBK"), "utf-8"); response.setHeader("Content-disposition", "attachment; filename=" + fileName); ServletOutputStream ouputStream = response.getOutputStream(); JasperExportManager.exportReportToPdfStream(jasperPrint, ouputStream); ouputStream.flush(); ouputStream.close(); } /** * 导出html * * @param pageIndexStr */ private static void exportHtml(JasperPrint jasperPrint, String defaultFilename, HttpServletRequest request, HttpServletResponse response, String pageIndexStr) throws IOException, JRException { response.setContentType("text/html"); ServletOutputStream ouputStream = response.getOutputStream(); JRHtmlExporter exporter = new JRHtmlExporter(); // 得到当前页码 Integer pageIndex = getPageIndex(jasperPrint, request, pageIndexStr); // 如果页码不为空 则设置分页页码 if (pageIndex != null) { exporter.setParameter(JRExporterParameter.PAGE_INDEX, pageIndex); } exporter.setParameter(JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, Boolean.FALSE); exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint); exporter.setParameter(JRExporterParameter.CHARACTER_ENCODING, "UTF-8"); exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, ouputStream); exporter.exportReport(); ouputStream.flush(); ouputStream.close(); } /** * * description:通过传进来的pageIndexStr 得到当前页码 Date 2013-1-18 上午10:49:38 * * @param @param jasperPrint * @param @param request * @param @param pageIndexStr * @param @return * @return Integer */ private static Integer getPageIndex(JasperPrint jasperPrint, HttpServletRequest request, String pageIndexStr) { // 如果pageIndexStr为空或空字符串则返回null if (pageIndexStr == null || StringUtils.isBlank(pageIndexStr)) { return null; } Integer pageIndex = 0; int lastPageIndex = 0; // 得到最后一页的 页码 if (jasperPrint.getPages() != null) { lastPageIndex = jasperPrint.getPages().size() - 1; } // 如果字符串＝＝lastPage 则反lastPageIndex的值赋给pageIndex 并返回pageIndex if ("lastPage".equals(pageIndexStr)) { pageIndex = lastPageIndex; return pageIndex; } try { pageIndex = Integer.parseInt(pageIndexStr); // 从ireport 传来的PageIndex是从1开始，而JRExporterParameter.PAGE_INDEX是从0开始的 if (pageIndex > 0) { pageIndex = pageIndex - 1; } } catch (Exception e) { e.printStackTrace(); } if (pageIndex < 0) { pageIndex = 0; } if (pageIndex > lastPageIndex) { pageIndex = lastPageIndex; } return pageIndex; } /** * 导出word */ private static void exportWord(JasperPrint jasperPrint, String defaultFilename, HttpServletRequest request, HttpServletResponse response) throws JRException, IOException { response.setContentType("application/msword;charset=utf-8"); String defaultname = null; if (defaultFilename.trim() != null && defaultFilename != null) { defaultname = defaultFilename + ".doc"; } else { defaultname = "export.doc"; } String fileName = new String(defaultname.getBytes("GBK"), "utf-8"); response.setHeader("Content-disposition", "attachment; filename=" + fileName); JRExporter exporter = new JRRtfExporter(); exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint); exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, response .getOutputStream()); exporter.exportReport(); } /** * 按照类型导出不同格式文件 * * @param datas * 数据 * @param type * 文件类型 * @param is * jasper文件的来源 * @param request * @param response * @param defaultFilename默认的导出文件的名称 */ private static void export(Collection datas, String type, String defaultFilename, InputStream is, HttpServletRequest request, HttpServletResponse response, String pageIndexStr) { logger .debug("导出判断 The method======= export() start......................."); try { logger.info("is==" + is); JasperReport jasperReport = (JasperReport) JRLoader.loadObject(is); prepareReport(jasperReport, type); JRDataSource ds = new JRBeanCollectionDataSource(datas, false); Map parameters = new HashMap(); JasperPrint jasperPrint = JasperFillManager.fillReport( jasperReport, parameters, ds); if (EXCEL_TYPE.equals(type)) { exportExcel(jasperPrint, defaultFilename, request, response); } else if (PDF_TYPE.equals(type)) { exportPdf(jasperPrint, defaultFilename, request, response); } else if (HTML_TYPE.equals(type)) { exportHtml(jasperPrint, defaultFilename, request, response, pageIndexStr); } else if (WORD_TYPE.equals(type)) { exportWord(jasperPrint, defaultFilename, request, response); } } catch (Exception e) { e.printStackTrace(); } } /** * 导出入口 （导出所有的数据 ） * * @param exportType * 导出文件的类型 * @param jaspername * jasper文件的名字 如： xx.jasper * @param lists * 导出的数据 * @param request * @param response * @param defaultFilename默认的导出文件的名称 */ public static void exportmain(String exportType, String jaspername, List lists, String defaultFilename) { exportmain(exportType, jaspername, lists, defaultFilename, null); } /** * 导出入口 (分页显示 导出传入的pageIndex 页的数据) * * @param exportType * 导出文件的类型 * @param jaspername * jasper文件的名字 如： xx.jasper * @param lists * 导出的数据 * @param request * @param response * @param defaultFilename默认的导出文件的名称 * @param pageIndex * 需要导出数据的页码 当pageIndex = null时导出所有数据 */ @SuppressWarnings("deprecation") public static void exportmain(String exportType, String jaspername, List lists, String defaultFilename, String pageIndexStr) { logger .debug("进入导出 The method======= exportmain() start......................."); ActionContext ct = ActionContext.getContext(); HttpServletRequest request = (HttpServletRequest) ct .get(ServletActionContext.HTTP_REQUEST); HttpServletResponse response = ServletActionContext.getResponse(); String filenurl = request.getRealPath("/view/situation/jasper/" + jaspername); File file = new File(filenurl); InputStream is = null; try { is = new FileInputStream(file); } catch (FileNotFoundException e) { e.printStackTrace(); } export(lists, exportType, defaultFilename, is, request, response, pageIndexStr); } }
