1，PDF

//据据jasper文件生成JasperPrint对象

JasperPrint jasperPrint = JasperFillManager.fillReport("WebRoot//JasperFile//report9.jasper", new HashMap(),connection);

//生成我们的导出类JRPdfExporter 来自JRExporter

JRPdfExporter jrpdfExporter = new JRPdfExporter();

//设JasperPrint参数

jrpdfExporter.setParameter(JRExporterParameter.JASPER_PRINT,jasperPrint);

//设置输入的PDF文件放在什么地方

jrpdfExporter.setParameter(JRExporterParameter.OUTPUT_FILE_NAME, "WebRoot//JasperFile//exporter.pdf");

//输出

jrpdfExporter.exportReport();

或者

File Pdf = new File(pdfFile);

JasperExportManager.exportReportToPdfFile(jasperPrint, Pdf.getAbsolutePath());

2，XLS

//Excel JExcelApiExporter 来自JRExporter

JExcelApiExporter xlsExporter = new JExcelApiExporter();

xlsExporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);

xlsExporter.setParameter(JRExporterParameter.OUTPUT_FILE_NAME,"WebRoot//JasperFile//exporter.xls");

xlsExporter.exportReport();

3，在WEB上面生成HTML的报表

public class HtmlReportServlet extends HttpServlet {

private static final long serialVersionUID = 1L;

public void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

try {

//连结数据库

Class.forName("com.mysql.jdbc.Driver");

Connection connection = DriverManager.getConnection("jdbc:mysql://localhost/jasperreportdb","root","root");

//获得Jasper输入流

InputStream inputStream = getServletConfig().getServletContext().getResourceAsStream("JasperFile//report9.jasper");

//获得JasperPrint对象

JasperPrint jasperPrint = JasperFillManager.fillReport(inputStream, new HashMap(),connection);

connection.close();

//设置格式

response.setContentType("text/html");

//获得输出流 ,这里不能这样response.getOutputStream()

PrintWriter printWriter = response.getWriter();

//创建JRHtmlExporter对象

JRHtmlExporter htmlExporter = new JRHtmlExporter();

//把jasperPrint到Session里面(net.sf.jasperreports.j2ee.jasper_print)

request.getSession().setAttribute(ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE, jasperPrint);

//设值jasperPrint

htmlExporter.setParameter(JRExporterParameter.JASPER_PRINT,jasperPrint);

//设置输出

htmlExporter.setParameter(JRExporterParameter.OUTPUT_WRITER,printWriter);

//设置图片生成的Servlet(生成图片就用这个ImageServlet,并且要在XML文件里面配置 image?image=这个是Servlet的url-pattern)

htmlExporter.setParameter(JRHtmlExporterParameter.IMAGES_URI,"image?image=");

//导出

htmlExporter.exportReport();

printWriter.close();

} catch (SQLException e) {

e.printStackTrace();

} catch (ClassNotFoundException e) {

e.printStackTrace();

} catch (JRException e) {

e.printStackTrace();

}

}

public void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

this.doGet(request, response);

}

}

HtmlReportServlet

com.langhua.JasperReport.Servlet.HtmlReportServlet

ImageServlet

net.sf.jasperreports.j2ee.servlets.ImageServlet

ImageServlet

/servlet/image

4，JasperReport调用接口

private static void callJasperReport(String jasperFileStr, String pdfFileStr) {

Connection con = null;

try {

File jasperFile = new File(jasperFileStr);

if (jasperFile.exists()) {

HashMap params = getParamaterMap();

Class.forName("oracle.jdbc.driver.OracleDriver");

con = DriverManager.getConnection(jdbcUrl, dbUser, dbPassword);

JasperPrint jasperPrint = null;

if (con != null) {

jasperPrint = JasperFillManager.fillReport(jasperFileStr,

params, con);

} else {

jasperPrint = JasperFillManager.fillReport(jasperFileStr,

params, new JREmptyDataSource());

}

//PDF

//outputPDF(pdfFileStr, jasperPrint);

//xls

outputXLS(pdfFileStr, jasperPrint);

} else {

System.out.println("找不到jasper文件:" + jasperFileStr);

}

} catch (Exception e) {

e.printStackTrace();

} finally {

if (con != null) {

try {

con.close();

} catch (SQLException e) {

e.printStackTrace();

}

}

}

}

private static HashMap getParamaterMap() {

HashMap params = new HashMap();

return params;

}

5, Java Project中包含的Jar包可参考：

commons-beanutils-1.8.2.jar

commons-collections-3.2.1.jar

commons-digester-1.7.jar

commons-logging-1.1.jar

iText-2.1.7.jar

iTextAsian.jar

JasperReports-4.0.2.jar

ojdbc14.jar

org-netbeans-core.jar (缺少会报字体异常,Caused by: java.lang.ClassNotFoundException: org.netbeans.beaninfo.editors.ColorEditor$SuperColor)

jxl-2.6.10.jar (缺少会报： java.lang.NoClassDefFoundError: jxl/write/biff/RowsExceededException)