jasperreports ireport使用sql语句中有in时动态赋值

 <parameter name="

a_id" class="java.util.List"/>
 <queryString language="SQL">
  <![CDATA[select * from Apoplexy where  $X{IN, apoplexy_id, 

a_id}]]>

 </queryString>

import net.sf.jasperreports.engine.JRExporter;

import net.sf.jasperreports.engine.JRExporterParameter;

import net.sf.jasperreports.engine.JRPrintPage;

import net.sf.jasperreports.engine.JasperFillManager;

import net.sf.jasperreports.engine.JasperPrint;

import net.sf.jasperreports.engine.JasperReport;

import net.sf.jasperreports.engine.export.JRHtmlExporter;

import net.sf.jasperreports.engine.export.JRHtmlExporterParameter;

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; 

public void report() throws ServletException, IOException {

HttpServletRequest request = ServletActionContext.getRequest();

HttpServletResponse response = ServletActionContext.getResponse();

String jasper = "report/ApoplexyReport.jasper"; // 你的jasper文件地址

String filename = "中疯病患者详细信息报表"; // 

// 各种参数设置好

List<Integer> collection = new ArrayList<Integer>();

collection.add(14);

collection.add(15);

collection.add(16);

collection.add(17);

collection.add(18);

collection.add(19);

collection.add(20);

collection.add(21);

collection.add(22);

collection.add(23);

collection.add(24);

collection.add(25);

Map map = new HashMap();

map.put("a_id", collection);

try {

// 读取jasper

JasperReport jr = (JasperReport) JRLoader

.loadObjectFromLocation(jasper);

Connection conn = DBConnection.getConnection();

// 填充数据

JasperPrint jp = JasperFillManager.fillReport(jr, map, conn);

// 判断是否正常

List<JRPrintPage> pages = jp.getPages();

// ReportType.export(response, jp, ReportType.EXCEL, filename);

ReportType.export(response, jp, ReportType.HTML, filename);

} catch (Exception ex) {

System.out.println(ex.toString());

}

}

public void export(HttpServletResponse response, JasperPrint jp, int type,

String filename) throws Exception {

JRExporter exporter = null;

int HTML = 1;

int EXCEL = 2;

final int PDF = 3;

if (type == HTML) {

exporter = new JRHtmlExporter();

exporter.setParameter(

JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, false);

exporter.setParameter(JRHtmlExporterParameter.BETWEEN_PAGES_HTML,

"");

// exporter.setParameter(JRHtmlExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS,

// Boolean.TRUE);

} else if (type == EXCEL) {

exporter = new JRXlsExporter();

response.setContentType("application/vnd.ms-excel");

response.addHeader("Content-Disposition", new String(

("attachment; filename=" + filename + ".xls")

.getBytes("GBK"), "ISO-8859-1"));

exporter.setParameter(JRXlsExporterParameter.IS_ONE_PAGE_PER_SHEET,

Boolean.FALSE);

// exporter.setParameter(JRXlsExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS,

// Boolean.TRUE);

} else if (type == PDF) {

exporter = new JRPdfExporter();

response.setContentType("application/pdf");

response.addHeader("Content-Disposition", new String(

("attachment; filename=" + filename + ".pdf")

.getBytes("GBK"), "ISO-8859-1"));

} else {

return;

}

exporter.setParameter(JRExporterParameter.CHARACTER_ENCODING, "GBK");

exporter.setParameter(JRExporterParameter.JASPER_PRINT, jp);

exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, response

.getOutputStream());

exporter.exportReport();

}