private static Class resolveType(PropertyDescriptor d) {
if (TypeResolver.isIntegerType(d.getPropertyType())) {
return Integer.class;
} else if (TypeResolver.isLongType(d.getPropertyType())) {
return Long.class;
} else if (TypeResolver.isBooleanType(d.getPropertyType())) {
return Boolean.class;
} else {
return d.getPropertyType();
}
}
@SuppressWarnings("unchecked")
public byte[] export(
String title, List<ClearingItem> exportList, List<PropertyDescriptor> props) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
if (exportList == null || exportList.size() == 0) {
return new byte[0];
}
try {
Object bean = exportList.get(0);
BeanInfo infoTo = Introspector.getBeanInfo(bean.getClass());
PropertyDescriptor[] d = infoTo.getPropertyDescriptors();
if (props == null || props.isEmpty()) {
props = new ArrayList<PropertyDescriptor>();
for (int i = 0; i < d.length; i++) {
try {
Class pType = d[i].getPropertyType();
if (pType.isAssignableFrom(Class.class)) {
continue;
}
if (TypeResolver.isBooleanType(pType)) {
// ok
} else if (TypeResolver.isPrimitiveType(pType)) {
// ok
} else if (TypeResolver.isDateType(pType)) {
// ok
} else if (TypeResolver.isEnumType(pType)) {
// ok
} else {
log.warning("Skip type " + pType);
continue;
}
if (d[i].getName().equals("className")
|| d[i].getName().equals("id")
|| d[i].getName().equals("version")) {
continue;
}
props.add(d[i]);
} catch (Exception ex) {
log.severe(ex.getMessage());
continue;
}
}
}
Map<String, String> parameters = new HashMap<String, String>();
parameters.put("ReportTitle", title);
JasperDesign design = getJasperDesign(props);
JasperReport jasperReport = JasperCompileManager.compileReport(design);
JasperPrint jasperPrint = null;
jasperPrint =
JasperFillManager.fillReport(
jasperReport, parameters, new JRBeanCollectionDataSource(exportList));
JRPdfExporter exporter = new JRPdfExporter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, out);
exporter.setParameter(JRXlsExporterParameter.IS_ONE_PAGE_PER_SHEET, Boolean.TRUE);
exporter.setParameter(
JRXlsExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS, Boolean.TRUE);
exporter.setParameter(JRXlsExporterParameter.IS_WHITE_PAGE_BACKGROUND, Boolean.FALSE);
// writeHeader(response, exportName);
exporter.exportReport();
byte[] ret = out.toByteArray();
out.close();
return ret;
} catch (Throwable t) {
log.log(Level.INFO, t.getMessage(), t);
return null;
}
}