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출처
- Java Code Examples net.sf.jasperreports.engine.JRDataSource
- How to create and use a JRDataSource adapter | Jaspersoft Community
가상 레코드 생성 예제
public class DemoReport {
public static void main(String[] args) throws Exception {
JasperReport jasperReport = JasperCompileManager.compileReport("src/ireport/report1.jrxml");
// creating the data source
JRDataSource dataSource = new JREmptyDataSource(1000); // 가상의 1000개의 레코드 생성
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, null, dataSource);
// view report to UI
jasperReport.setWhenNoDataType(WhenNoDataTypeEnum.ALL_SECTIONS_NO_DETAIL);
JasperViewer.viewReport(jasperPrint, false);
}
}
PDF 출력 예제
public class DemoReport2 {
public static void main(String[] args) throws Exception {
String outfilename = "src/ireport/report1.pdf";
JasperReport jasperReport = JasperCompileManager.compileReport("src/ireport/report1.jrxml");
// compile report hm.put(“REPORT_TITLE”,”This is the title of the report”)
HashMap<String, Object> hm = new HashMap<String, Object>();
hm.put("id", "121");
List list = new ArrayList();
list.add("test data");
JRBeanCollectionDataSource jrbcds = new JRBeanCollectionDataSource(list, false);
// 리포트 목록
// List<JasperPrint> japerPrintList = new ArrayList<JasperPrint>();
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, hm, jrbcds);
// PDF 출력
JRExporter ex = new JRPdfExporter();
ex.setParameter(JRPdfExporterParameter.IS_COMPRESSED, true);
ex.setParameter(JRExporterParameter.OUTPUT_FILE_NAME, outfilename);
// ex.setParameter(JRExporterParameter.JASPER_PRINT_LIST, japerPrintList);
ex.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
ex.exportReport();
}
}
JRDataSource 확장
필드 추가
필드 이름 변경
필드 객체를 선택해서 Detail 밴드에 드래그해 놓기
필드 배치
최종 결과물
커스텀 JRDataSource
import java.util.HashMap;
import java.util.Map;
import net.sf.jasperreports.engine.JRDataSource;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRField;
public class SampleDS implements JRDataSource {
String[] fields;
String[][] data;
private Map<String, Integer> fieldIndex = new HashMap<String, Integer>();
public SampleDS(String[] fields, String[][] data) {
this.fields = fields;
this.data = data;
for (int i = 0; i < fields.length; i++)
fieldIndex.put(fields[i], i);
}
int pos = -1;
@Override
public boolean next() throws JRException {
for (;;) {
pos++;
if (pos >= data.length)
return false;
return true;
}
}
@Override
public Object getFieldValue(JRField jrField) throws JRException {
Integer index = fieldIndex.get(jrField.getName());
return data[pos][index];
}
public static JRDataSource getDataSource() {
String[] fields = { "a", "b", "c", "d", "e" };
String[][] data = {
{ "a1", "b1", "c1", "d1", "e1" },
{ "a2", "b2", "c2", "d2", "e2" },
{ "a3", "b3", "c3", "d3", "e3" }
};
return new SampleDS(fields, data);
}
}
예제소스
public class DemoReport3 {
public static void main(String[] args) throws Exception {
String outfilename = "src/ireport/report2.pdf";
JasperReport jasperReport = JasperCompileManager.compileReport("src/ireport/report2.jrxml");
// 커스텀 JRDataSource 생성
JRDataSource dataSource = SampleDS.getDataSource();
//
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, null, dataSource);
// PDF 출력
JRExporter ex =new JRPdfExporter();
ex.setParameter(JRPdfExporterParameter.IS_COMPRESSED, true);
ex.setParameter(JRExporterParameter.OUTPUT_FILE_NAME, outfilename);
//ex.setParameter(JRExporterParameter.JASPER_PRINT_LIST, japerPrintList);
ex.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
ex.exportReport();
}
}
실행
동적으로 이미지 출력
디자인
Image Expression
$P{image_home}+"/"+$F{image1}
ImageBean 소스
public class ImageBean {
private String image1;
private String image2;
public ImageBean(String image1, String image2) {
super();
this.image1 = image1;
this.image2 = image2;
}
public String getImage1() {
return image1;
}
public void setImage1(String image1) {
this.image1 = image1;
}
public String getImage2() {
return image2;
}
public void setImage2(String image2) {
this.image2 = image2;
}
}
이미지 출력 예제 소스
public class DemoReport4 {
public static void main(String[] args) throws Exception {
String outfilename = "src/ireport/report3.pdf";
JasperReport jasperReport = JasperCompileManager.compileReport("src/ireport/report3.jrxml");
// compile report hm.put(“REPORT_TITLE”,”This is the title of the report”)
HashMap<String, Object> hm = new HashMap<String, Object>();
hm.put("image_home", "C:\\Users\\bluesanta\\Pictures");
//
List list = new ArrayList();
list.add(new ImageBean("73196c49-adeb-4ebd-9bde-069791498a28.jpg", "70947765.jpg"));
JRBeanCollectionDataSource jrbcds = new JRBeanCollectionDataSource(list, false);
// 리포트 목록
// List<JasperPrint> japerPrintList = new ArrayList<JasperPrint>();
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, hm, jrbcds);
// PDF 출력
JRExporter ex = new JRPdfExporter();
ex.setParameter(JRPdfExporterParameter.IS_COMPRESSED, true);
ex.setParameter(JRExporterParameter.OUTPUT_FILE_NAME, outfilename);
// ex.setParameter(JRExporterParameter.JASPER_PRINT_LIST, japerPrintList);
ex.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
ex.exportReport();
}
}728x90
