1.所需jar包
?ireport的安装目录下：
iReport-3.7.3ireportmodulesext（如果为3.7.3）:
jasperreports-3.7.3.jar
iText-2.1.7.jar
groovy-all-1.5.5.jar
commons-digester-1.7.jar
commons-collections-3.2.1.jar
commons-beanutils-1.8.2.jar
2.中文问题
需要iText-verson.jar和iTextAsia.jar
①设置字体为宋体
②pdf embedded 勾上
③设置 pdf encoding 为 UniGB-UCS2-H
④设置Pdf font name is now .. 为 STSong-Light
?
3.如果使用javabean为数据源，则要写一个继承JRDataSource的数据源类，如
public class RepairContactMenuDataSource implements JRDataSource {
????????
????public RepairContactMenuDataSource(List datas) {
????????this.datas = datas;
????}
????private List datas = null ;
????private int index = -1 ;
????
????public Object getFieldValue(JRField field) throws JRException {
?????RepairContactMenu repairContactMenu = (RepairContactMenu)this.datas.get(index);
????
?????Object value = null;
?????String fieldName = field.getName();??
???????if ("serialNum".equals(fieldName)) {??
???????????if(repairContactMenu.getSerialNum()!=null){
???????????????value = repairContactMenu.getSerialNum();
???????????} else{
???????????????value = "";
???????????}
???????} else if ("date".equals(fieldName)){??
???????????if(repairContactMenu.getDate()!=null){
???????????????SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
???????????????value = sdf.format(repairContactMenu.getDate());
???????????} else {
???????????????value = "";
???????????}
???????} else if("reason".equals(fieldName)){
???????????if(repairContactMenu.getReason()!=null){
???????????????value = repairContactMenu.getReason();
???????????} else {
???????????????value = "";
???????????}
???????}????????
???????repairContactMenu = null ;?
???????return value;
????}
????public boolean next() throws JRException {
????????index ++;
????????return index < datas.size();
????}
}
4.可以写一个测试类，如下
public class RepairContactMenuDataSourceProvider extends JRAbstractBeanDataSourceProvider {
????public RepairContactMenuDataSourceProvider(Class beanClass) {
????????super(beanClass);
????}
????@Override
????public JRDataSource create(JasperReport arg0) throws JRException {
????????List list = new ArrayList();
????????RepairContactMenu repairContactMenu =??new RepairContactMenu();
????????repairContactMenu.setSerialNum("2010");
????????list.add(repairContactMenu);
????????return new JRBeanCollectionDataSource(list);
????}
????@Override
????public void dispose(JRDataSource arg0) throws JRException {
????}
???
????public static void main(String[] args) throws JRException{
????????List list = new ArrayList();
????????RepairContactMenu repair = new RepairContactMenu();
????????repair.setSerialNum("4444");
????????repair.setDate(new Date());
????????repair.setContent("dfdfdf");
????????repair.setDepartmentView("dfdfdf");
????????repair.setReason("是由");
??????????
????????list.add(repair);
????????String filename = "F:\*\report2.jasper";
????????JasperPrint print = JasperFillManager.fillReport(filename, null, new RepairContactMenuDataSource(list));
????????JRExporter exporter = new JRPdfExporter();
????????exporter.setParameter(JRExporterParameter.OUTPUT_FILE_NAME,????"F:\*.pdf");
????????exporter.setParameter(JRExporterParameter.JASPER_PRINT, print);
????????exporter.exportReport();
????}
}
4.Servlet类
使用了spring的mvc
@Controller
public class ExportReportContactMenuServlet {
????@Autowired
????private RepairContactMenuService?repairContactMenuService;
???
????@RequestMapping("/excel/exportToPdf.do")
?????protected void export(HttpServletRequest request, HttpServletResponse response)
????????throws IOException, BiffException, WriteException, JRException {????????
????????String repairContactMenuId = request.getParameter("id");
????????RepairContactMenu repairContactMenu = (RepairContactMenu)repairContactMenuService.loadById(repairContactMenuId);
????????response.setContentType("application/pdf");
????????response.setCharacterEncoding("UTF-8");
????????String jrFilePath = request.getSession().getServletContext().getRealPath("/report/report2.jasper");
????????JasperReport report = (JasperReport)JRLoader.loadObject(jrFilePath);
????????Map parameters = new HashMap();
????????String imagePath = request.getSession().getServletContext().getRealPath("/report/isAudited.gif");
????????parameters.put("image_uri", imagePath);
????????parameters.put("isAudited", isAudited);
????????List repairContactMenus = new ArrayList();
????????repairContactMenus.add(repairContactMenu);
????????byte[] bytes = JasperRunManager.runReportToPdf(report, parameters, new RepairContactMenuDataSource(repairContactMenus));
????????response.setContentLength(bytes.length);
????????ServletOutputStream outputStream = response.getOutputStream();
????????outputStream.write(bytes, 0, bytes.length);
????????outputStream.flush();
????????outputStream.close();
????}
}
?
5.JasperReport基本概念
?字段，参数和变量：Fields，Parameters，Variable；
?报表结构
?Title Band：在整个报表的第一页的最上面部分显示，其他页面不会出现此band内容；
?pageHeader Band：其内容会在整个报表中的每一个页面中出现，显示在页面的上部，如果是报表的第一页其内容将显示在Title Band下面，除首页之外的所有页面中pageHeader内容将显示在页面的最上端；
?pageFooter Band：显示在所有页面的最下端；
?Detail Band：报表内容段，是报表设计中需要重复出现的内容，在每页都会出现；9 c- q4 E: V" p. w4 g1 R6 k. ~
?columnHeader Band：针对Detail Band的表头段，一般情况下在这个段中画报表的表头；$ g??W* H' ^' t/ m* Z/ a
?columnFooter Band：针对Detail Band的表尾段；9 b9 N7 {) y! H. P( Z
?Summary Band：表格的合计段，出现在整个报表的最后一页中的Detail band的后面，一般用来统计报表中的某一个或某几个?
?
http://blog.sina.com.cn/s/blog_8020e41101015p4c.html