Ireport 报表导出 Poi + ireport 导出pdf, word ,excel ,html 格式 下面是报表导出工具类
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。
package com.bzhinfo; 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"; /**
* 如果导出的是excel，则需要去掉周围的margin
*
* @param jasperReport
* @param type
*/
public static void prepareReport(JasperReport jasperReport, String type) {
logger
.debug("The method======= prepareReport() start.......................");
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
*
* @param jasperPrint
* @param defaultFilename
* @param request
* @param response
* @throws IOException
* @throws JRException
*/
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.......................");
response.setContentType("application/vnd.ms-excel"); // 设置头文件信息
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();
Integer pageIndex = getPageIndex(jasperPrint, request, pageIndexStr); // 得到当前页码
if (pageIndex != null) { // 如果页码不为空 则设置分页页码
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) {
if (pageIndexStr == null || StringUtils.isBlank(pageIndexStr)) { // 如果pageIndexStr为空或空字符串则返回null
return null;
}
Integer pageIndex = 0;
int lastPageIndex = 0;
if (jasperPrint.getPages() != null) { // 得到最后一页的 页码
lastPageIndex = jasperPrint.getPages().size() - 1;
}
if ("lastPage".equals(pageIndexStr)) { // 如果字符串＝＝lastPage
// 则反lastPageIndex的值赋给pageIndex
// 并返回pageIndex
pageIndex = lastPageIndex;
return pageIndex;
}
try {
pageIndex = Integer.parseInt(pageIndexStr);
if (pageIndex > 0) { // 从ireport
// 传来的PageIndex是从1开始，而JRExporterParameter.PAGE_INDEX是从0开始的
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);
} }