JasperReport动态列

import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
 
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.HashPrintServiceAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.print.attribute.PrintServiceAttributeSet;
import javax.print.attribute.standard.Copies;
import javax.print.attribute.standard.MediaSizeName;
import javax.print.attribute.standard.PrinterName;
 
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRExporterParameter;
import net.sf.jasperreports.engine.JRReport;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.base.JRBaseLine;
import net.sf.jasperreports.engine.base.JRBasePrintText;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import net.sf.jasperreports.engine.design.JRDesignBand;
import net.sf.jasperreports.engine.design.JRDesignExpression;
import net.sf.jasperreports.engine.design.JRDesignField;
import net.sf.jasperreports.engine.design.JRDesignStaticText;
import net.sf.jasperreports.engine.design.JRDesignTextField;
import net.sf.jasperreports.engine.design.JasperDesign;
import net.sf.jasperreports.engine.export.JRPrintServiceExporter;
import net.sf.jasperreports.engine.export.JRPrintServiceExporterParameter;
import net.sf.jasperreports.engine.util.JRSaver;
 
import org.apache.commons.beanutils.BasicDynaBean;
import org.apache.commons.beanutils.BasicDynaClass;
import org.apache.commons.beanutils.DynaBean;
import org.apache.commons.beanutils.DynaProperty;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
 
import com.inqgen.iqlis.template.jsf.bean.TemplateDirectoryAdminBean;
 
/**
 * JasperReport 動態列 打印
 * @author hxy
 *
 */
public class ReportProcess {
 
 private static Log logger = LogFactory
   .getLog(TemplateDirectoryAdminBean.class);
 /** 設置字段寬度 */
 private final static int textWidth = 80;
 /** 設置字段高度 */
 private final static int textHeight = 20;
 /** coulumnHeader區域字體大小 */
 private final static int columnHeaderfontSize = 14;
 /** detail 區域字體大小 */
 private final static int fontSize = 12;
 /** 設置間距 */
 private final static int X = 80;
 /** coulumnHeader區域高度 */
 private final static int columnHeaderHeight = 20;
 /** detail 區域高度 */
 private final static int detailHeight = 20;
 /**  */
 private static String aliasColumn = "column";
 
 public static void main(String args[]){
  try {
   String[] columns = {"字段1", "字段2", "字段3", "字段4"};
   File f = new File("d://test.pdf");
   List<Object[]> list = new ArrayList<Object[]>();
   Object[] obj = null;
   for(int j=0;j<50;j++){
    obj = new Object[columns.length];
    for(int i=0;i<columns.length;i++){
     obj[i] = columns[i]+j+","+i;
    }
    list.add(obj);
   }
   OutputStream out = new FileOutputStream(f);
   preview(columns, list, out);
   out.close();
   logger.info("成功～");
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }
 
 /**
  * PDF打印
  * 
  * @param headers
  *            colimnHeaders
  * @param list
  *            數據來源
  * @param out
  *            輸出流
  * @throws Exception
  */
 public static void preview(String headers[], List<Object[]> list,
   OutputStream out) throws Exception {
  long start = System.currentTimeMillis();
  String[] alias = preaseAliasColumnHeaders(headers);
  JasperReport jp = getJasperReport(headers, alias);
  Map<String, Object> parameters = new HashMap<String,Object>();
  JasperPrint jasperPrint = JasperFillManager.fillReport(jp, parameters,
    new JRBeanCollectionDataSource(getBaseList(alias, phrase(list))));
  logger.info("Filling time : " + (System.currentTimeMillis() - start));
  JasperExportManager.exportReportToPdfStream(jasperPrint, out);
  logger.info("Printing time : " + (System.currentTimeMillis() - start));
 }
 
 /**
  * 打印機打印報表
  * 
  * @param headers
  *            colimnHeaders
  * @param list
  *            數據來源
  * @param parameters
  *            Map 參數
  * @param printerName
  *            打印機名稱
  *  @param printerName
  *            打印機份數
  * @param tempFileName
  *            创建报表打印临时文件的路径
  * @throws Exception
  */
 public static void print(String headers[], List<Object[]> list,
   Map<String, Object> parameters, String printerName, int copies,
   String tempFileName) throws Exception {
  long start = System.currentTimeMillis();
  /** 获取打印报表数据 */
  String[] alias = preaseAliasColumnHeaders(headers);
  JasperReport jp = getJasperReport(headers, alias);
  JasperPrint jasperPrint = JasperFillManager.fillReport(jp, parameters,
    new JRBeanCollectionDataSource(getBaseList(alias, phrase(list))));
  /** 保存向打印机发送的临时报表数据 */
  JRSaver.saveObject(jasperPrint, tempFileName);
  logger.info("Filling time : " + (System.currentTimeMillis() - start));
  /** 设置打印参数 */
  PrintRequestAttributeSet printRequestAttributeSet = new HashPrintRequestAttributeSet();
  /** 设置A4纸张 */
  printRequestAttributeSet.add(MediaSizeName.ISO_A4);
  /** 設置打印份數 */
  printRequestAttributeSet.add(new Copies(copies));
  /** 设置打印机 */
  PrintServiceAttributeSet printServiceAttributeSet = new HashPrintServiceAttributeSet();
  /** 添加打印机名称 */
  // "Epson Stylus 800 ESC/P// 2"
  printServiceAttributeSet.add(new PrinterName(printerName, null));
  /** 打印机对象 */
  JRPrintServiceExporter exporter = new JRPrintServiceExporter();
  /** 向打印机发送的临时报表数据 */
  exporter
    .setParameter(JRExporterParameter.INPUT_FILE_NAME, tempFileName);
  exporter.setParameter(
    JRPrintServiceExporterParameter.PRINT_REQUEST_ATTRIBUTE_SET,
    printRequestAttributeSet);
  exporter.setParameter(
    JRPrintServiceExporterParameter.PRINT_SERVICE_ATTRIBUTE_SET,
    printServiceAttributeSet);
  /** 是否弹出打印页数的提示对话框 */
  exporter.setParameter(
    JRPrintServiceExporterParameter.DISPLAY_PAGE_DIALOG,
    Boolean.FALSE);
  /** 是否弹出打印机设置属性的提示对话框 */
  exporter.setParameter(
    JRPrintServiceExporterParameter.DISPLAY_PRINT_DIALOG,
    Boolean.FALSE);
  /** 执行打印机打印报表 */
  exporter.exportReport();
  logger.info("Printing time : " + (System.currentTimeMillis() - start));
 }
 
 public static List<String[]> phrase(List<Object[]> list){
  List<String[]> temps = new ArrayList<String[]>();
  String []s= null;
  for(Object[] obj : list){
   s = new String[obj.length];
   for(int i = 0;i<obj.length;i++){
    s[i] = obj[i].toString();
   }
   temps.add(s);
  }
  return temps;
 }
 
 /**
  * 產生columnHeaders的別名(Headers[]有可能為中文，所以有必要用別名來替換)
  * 
  * @param headers
  * @return
  */
 private static String[] preaseAliasColumnHeaders(String headers[]) {
  int size = headers.length;
  String[] alias = new String[size];
  for (int i = 0; i < size; i++) {
   alias[i] = aliasColumn + i;
  }
  return alias;
 }
 
 /**
  * 產生Template文件
  * 
  * @param headers
  * @param alias
  * @return
  * @throws JRException
  */
 @SuppressWarnings("deprecation")
 private static JasperReport getJasperReport(String[] headers,
   String alias[]) throws JRException {
  JasperDesign design = new JasperDesign();
 
  // name="statistics"
  design.setName("statistics");
  // columnCount="1"
  // printOrder="Vertical"
  design.setPrintOrder(JRReport.PRINT_ORDER_VERTICAL);
  // orientation="Portrait"
  design.setOrientation(JRReport.ORIENTATION_PORTRAIT);
  // pageWidth="595"
  design.setPageWidth(595);
  // pageHeight="842"
  design.setPageHeight(842);
  // columnWidth="535"
  design.setColumnWidth(535);
  // columnSpacing="0"
  design.setColumnSpacing(0);
  // leftMargin="30"
  design.setLeftMargin(30);
  // rightMargin="30"
  design.setRightMargin(30);
  // topMargin="20"
  design.setTopMargin(20);
  // bottomMargin="20"
  design.setBottomMargin(20);
  // whenNoDataType="NoPages"
  design.setWhenNoDataType(JRReport.WHEN_NO_DATA_TYPE_BLANK_PAGE);
  // isTitleNewPage="false"
  design.setTitleNewPage(false);
  // isSummaryNewPage="false"
  design.setSummaryNewPage(false);
 
  // JRDesignBand title = new JRDesignBand();
  // title.setHeight(50);
  // JRDesignStaticText titleText = new JRDesignStaticText();
  // titleText.setText("test report");
  // titleText.setX(230);
  // titleText.setFontSize(20);
  // titleText.setHeight(50);
  // titleText.setWidth(100);
  // title.addElement(titleText);
  // design.setTitle(title);
  JRDesignBand columnHeader = new JRDesignBand();
  columnHeader.setHeight(columnHeaderHeight);
 
  JRDesignBand detail = new JRDesignBand();
  detail.setHeight(detailHeight);
 
  for (int i = 0; i < headers.length; i++) {
   // add column headers
   JRDesignStaticText staticText = new JRDesignStaticText();
   staticText.setText(headers[i]);
   staticText.setFontSize(columnHeaderfontSize);
   staticText.setHeight(textHeight);
   staticText.setWidth(textWidth);
   staticText.setX(X * i);
   staticText.setPdfFontName("MHei-Medium");
   staticText.setPdfEmbedded(true);
   staticText.setPdfEncoding("UniCNS-UCS2-H");
   staticText.setTextAlignment(JRBasePrintText.HORIZONTAL_ALIGN_CENTER);
   staticText.setLeftBorder(JRBaseLine.PEN_1_POINT);
   staticText.setTopBorder(JRBaseLine.PEN_1_POINT);
   staticText.setRightBorder(JRBaseLine.PEN_1_POINT);
   staticText.setBottomBorder(JRBaseLine.PEN_1_POINT);
   columnHeader.addElement(staticText);
 
   // define fields
   JRDesignField field = new JRDesignField();
   field.setName(alias[i]);
   field.setValueClass(String.class);
   design.addField(field);
 
   // add text fields for displaying fields
   JRDesignTextField textField = new JRDesignTextField();
   JRDesignExpression expression = new JRDesignExpression();
   expression.setText("$F{" + alias[i] + "}");
   expression.setValueClass(String.class);
   textField.setExpression(expression);
   textField.setFontSize(fontSize);
   textField.setHeight(textHeight);
   textField.setWidth(textWidth);
   textField.setX(X * i);
   textField.setPdfFontName("MHei-Medium");
   textField.setPdfEmbedded(true);
   textField.setPdfEncoding("UniCNS-UCS2-H");
   textField.setTextAlignment(JRBasePrintText.HORIZONTAL_ALIGN_CENTER);
   textField.setLeftBorder(JRBaseLine.PEN_1_POINT);
   textField.setTopBorder(JRBaseLine.PEN_1_POINT);
   textField.setRightBorder(JRBaseLine.PEN_1_POINT);
   textField.setBottomBorder(JRBaseLine.PEN_1_POINT);
   detail.addElement(textField);
  }
  design.setColumnHeader(columnHeader);
  design.setDetail(detail);
 
  return JasperCompileManager.compileReport(design);
 }
 
 /**
  * 利用反射機制，裝拼數據
  * 
  * @param headers
  * @param list
  * @return
  * @throws Exception
  */
 private static List<Object> getBaseList(String[] headers,
   List<String[]> list) throws Exception {
  List<Object> result = new ArrayList<Object>();
  int length = headers.length;
  DynaProperty[] dynaProps = new DynaProperty[length];
  for (int i = 0; i < length; i++) {
   dynaProps[i] = new DynaProperty(headers[i], String.class);
  }
  BasicDynaClass dynaClass = new BasicDynaClass("first",
    BasicDynaBean.class, dynaProps);
  for (Object[] obj : list) {
   DynaBean employee = dynaClass.newInstance();
   for (int i = 0; i < length; i++) {
    employee.set(headers[i], obj[i]);
   }
   result.add(employee);
  }
  return result;
 }
 
}