1、先用ireport工具新建jrxml文件,再製作報表樣式!
2、可以通過在控件的右鍵上設置邊框,這是爲了產生表格效果
好了 初步工作已經有了,我們經過編譯後得到了一個jasper文件,那麼我們怎麼用在J2EE的項目中呢?
3、將下列信息配置在web.xml
<servlet> <servlet-name>ImageServlet</servlet-name> <servlet-class>net.sf.jasperreports.j2ee.servlets.ImageServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>ImageServlet</servlet-name> <url-pattern>/servlets/image</url-pattern> </servlet-mapping>
4、導入運行jasper所要用到的5個jar包,jar包在下面的附件裏。可以下載獲得
5、配置完成後如何使用呢? 先學習如何在java類中使用 ,生成excel 、html、pdf等格式
package com.test;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
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.data.JRBeanCollectionDataSource;
import net.sf.jasperreports.engine.export.JRHtmlExporter;
import net.sf.jasperreports.engine.export.JRPdfExporter;
import net.sf.jasperreports.engine.export.JRXlsExporter;
import net.sf.jasperreports.engine.export.JRXlsExporterParameter;
import net.sf.jasperreports.engine.util.JRLoader;
@SuppressWarnings("unchecked")
public class Test3 {
private static final String TASK_PDF = "pdf";
private static final String TASK_XML = "xml";
private static final String TASK_XML_EMBED = "xmlEmbed";
private static final String TASK_HTML = "html";
private static final String TASK_RTF = "rtf";
private static final String TASK_XLS = "xls";
private static final String TASK_JXL = "jxl";
private static final String TASK_CSV = "csv";
private static final String TASK_ODT = "odt";
private static final String file = "D:\\workspase\\reportTest\\WebRoot\\report\\report3.jasper";
private static final String exportFilePath = "f:\\report3";
private static List getDataList() {
List list = new ArrayList();
for (int i = 0; i < 5; i++) {
Map dataList = new HashMap();
dataList.put("serialNo", "995400116528" + i);
dataList.put("reqDate", "2009111" + i);
dataList.put("businessType", "認購");
dataList.put("productCode", "111409015" + i);
dataList.put("productName", "2009年匯理財穩利系列F7計劃");
dataList.put("currencyType", "USD鈔");
dataList.put("reqMoney", "5300.00");
dataList.put("transStatus", "正常");
list.add(dataList);
}
return list;
}
private static Map getParameterMap() {
Map parameterMap = new HashMap();
parameterMap.put("CUSTOMER_NAME", "趙六");
parameterMap.put("CUSTOMER_ACCOUNT", "98430100829415");
parameterMap.put("TRANS_BANK", "9502");
parameterMap.put("TRANS_DATE", "20091118");
parameterMap.put("TRANS_OPERATOR", "11001157");
return parameterMap;
}
public static void export(String fileType) {
// 填充報表數據
File reportFile = new File(file);
JasperReport jasperReport = null;
JasperPrint jasperPrint = null;
try {
jasperReport = (JasperReport) JRLoader.loadObject(reportFile
.getPath());
jasperPrint = JasperFillManager.fillReport(jasperReport,
getParameterMap(), new JRBeanCollectionDataSource(
getDataList()));
// 導出報表文件
if (TASK_XLS.equals(fileType)) {
JRXlsExporter exporter = new JRXlsExporter();
exporter.setParameter(JRXlsExporterParameter.IS_ONE_PAGE_PER_SHEET,Boolean.TRUE);
exporter.setParameter(JRExporterParameter.JASPER_PRINT,jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_FILE_NAME, exportFilePath + "." + TASK_XLS);
exporter.exportReport();
} else if (TASK_HTML.equals(fileType)) {
JRHtmlExporter export = new JRHtmlExporter();
export.setParameter(JRExporterParameter.JASPER_PRINT,jasperPrint);
export.setParameter(JRExporterParameter.OUTPUT_FILE_NAME,exportFilePath + "." + TASK_HTML);
export.exportReport();
}else if(TASK_PDF.equals(fileType)){
JRPdfExporter export = new JRPdfExporter();
export.setParameter(JRExporterParameter.JASPER_PRINT,jasperPrint);
export.setParameter(JRExporterParameter.OUTPUT_FILE_NAME,exportFilePath + "." + TASK_PDF);
export.exportReport();
}
} catch (JRException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
export("xls");
}
}
如何在jsp中使用呢? 如下:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@page import="java.sql.Connection"%>
<%@page import="java.sql.DriverManager"%>
<%@ page import="net.sf.jasperreports.engine.*" %>
<%@ page import="net.sf.jasperreports.engine.util.*" %>
<%@ page import="net.sf.jasperreports.engine.export.*" %>
<%@ page import="net.sf.jasperreports.j2ee.servlets.*" %>
<%@ page import="java.util.*" %>
<%@ page import="java.io.*" %>
<%@page import="net.sf.jasperreports.engine.data.JRBeanCollectionDataSource"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<%
Map parameterMap = new HashMap();
parameterMap.put("ItemProjecID", "10010");
parameterMap.put("SupervisionID", "1000000001");
parameterMap.put("ConformityCode", "201109102218");
//提供jasper所需要的parameters
List list = new ArrayList();
Map dataList = new HashMap();
dataList.put("workAreaName", "995400116528");
dataList.put("UnitProjectType", "2009111");
dataList.put("UnitProjectAddress", "test");
dataList.put("UnitProjectSubType", "111409015");
dataList.put("Scale", "2009年匯理財穩利系列F7計劃");
dataList.put("BargainStartDate", "USD鈔");//提供jasper所需要的Fileds
list.add(dataList);
try {
File reportFile = new File(application.getRealPath("/report/bj.jasper"));
JasperReport jasperReport = (JasperReport)JRLoader.loadObject(reportFile.getPath());
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport,
parameterMap, new JRBeanCollectionDataSource(list));
JRHtmlExporter exporter = new JRHtmlExporter();
session.setAttribute(ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE, jasperPrint);
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRHtmlExporterParameter.IMAGES_URI, "./servlets/image?image=");
exporter.setParameter(JRExporterParameter.OUTPUT_WRITER, out);
exporter.exportReport();
} catch (Exception e) {
e.printStackTrace();
}
%>
</body>
</html>
搞定!
附件中是一個小例子,大家可以參考!