使用jasperreport动态生成pdf,excel,html

本文是结合我工作中实际项目来写的，所以有部分内容与你们将要使用的有所不同。

先介绍下我的项目，此项目为flex+java开发的，中间flex使用了自己写的一个小型框架来实现。

 

此报表导出实现了多表头打印，个人感觉应用还是比较理想的。

 

 

先来点核心代码：

  

package com.wfy.util;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
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 javax.swing.GroupLayout.Alignment;

import net.sf.jasperreports.engine.JRBand;
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.JasperRunManager;
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.JRHtmlExporter;
import net.sf.jasperreports.engine.export.JRHtmlExporterParameter;
import net.sf.jasperreports.engine.export.JRPrintServiceExporter;
import net.sf.jasperreports.engine.export.JRPrintServiceExporterParameter;
import net.sf.jasperreports.engine.export.JRXlsExporter;
import net.sf.jasperreports.engine.export.JRXlsExporterParameter;
import net.sf.jasperreports.engine.util.JRSaver;
import net.sf.jasperreports.view.JasperViewer;

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.jaspersoft.ireport.designer.sheet.properties.HorizontalAlignmentProperty;
import com.wfy.servlet.StartServlet;

/**
 * JasperReport 動態列 打印
 * 
 * @author hxy
 * 
 */
public class ReportProcess {

	private static Log logger = LogFactory.getLog(Copy_2_of_ReportProcess.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 = 11;
	/** detail 區域字體大小 */
	private final static int fontSize = 9;
	/** 設置間距 */
//	private final static int X = 0;
	/** 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";
	
	private static double mm_Pixel = 2.83;
	
	public static int mmToPixel(int mm){
		return (int)Math.rint((mm * mm_Pixel));
	}

	public  String createReport(Map pageSet, String title, List coluns, List list, String reportType){
		String url1 = "createPdf\\"+TimeUtil.dateTime6()+"."+reportType;
		String url = StartServlet.webRoot+url1;
		FileUtil.createFolder(url);
		File f = new File(url);
		
		try {
			OutputStream out = new FileOutputStream(f);
			preview(pageSet, title, coluns, list, out, reportType);
			out.close();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		}

		url1 = url1.replace("\\", "/");
		
		return url1;
	}
	
	/**
	 * PDF打印
	 * 
	 * @param headers
	 *            colimnHeaders
	 * @param list
	 *            數據來源
	 * @param out
	 *            輸出流
	 * @throws Exception
	 */
	
	public  void preview(Map pageSet, String titleStr, List coluns, List<Map> list,
			OutputStream out, String reportType) throws Exception {
		long start = System.currentTimeMillis();
		JasperReport jp = getJasperReport(pageSet, titleStr, coluns, reportType);
		Map<String, Object> parameters = new HashMap<String, Object>();
		JasperPrint jasperPrint = JasperFillManager.fillReport(jp, parameters, new JRBeanCollectionDataSource(getBaseList(alias, list)));//phrase(list)
		logger.info("Filling time : " + (System.currentTimeMillis() - start));	
		
		//将解析完的参数传入报表模板中并生成报表
		if(reportType.equals("pdf")){
			JasperExportManager.exportReportToPdfStream(jasperPrint, out);
		}else if(reportType.equals("xls")){
			JRXlsExporter exporter = new JRXlsExporter();
			ByteArrayOutputStream oStream = new ByteArrayOutputStream();
			exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
			exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, oStream);
			exporter.setParameter(JRXlsExporterParameter.IS_REMOVE_EMPTY_SPACE_BETWEEN_ROWS, Boolean.TRUE);
			exporter.setParameter(JRXlsExporterParameter.IS_ONE_PAGE_PER_SHEET, Boolean.FALSE);
			exporter.setParameter(JRXlsExporterParameter.IS_WHITE_PAGE_BACKGROUND, Boolean.FALSE);
			exporter.exportReport();
			byte[] bytes = oStream.toByteArray();
			out.write(bytes);
		}else{
			//生成html
			JRHtmlExporter exporter = new JRHtmlExporter();
			ByteArrayOutputStream oStream = new ByteArrayOutputStream();
			exporter.setParameter(JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, Boolean.FALSE);
			exporter.setParameter(JRHtmlExporterParameter.JASPER_PRINT, jasperPrint);
			exporter.setParameter(JRHtmlExporterParameter.CHARACTER_ENCODING, "utf-8");
			exporter.setParameter(JRHtmlExporterParameter.OUTPUT_STREAM, oStream);
			exporter.exportReport();
			byte[] bytes = oStream.toByteArray();
			out.write(bytes);
		}
		
		logger.info("Printing time : " + (System.currentTimeMillis() - start));
	}


	public  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  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
	 */
	private List colunsMode = new ArrayList();
	private double scaling = 1.00;
	private List<Integer> widths = new ArrayList();
	private JRDesignBand columnHeader = null;
	private int X = 0;
	private int Y = 0;
	List<String> alias = new ArrayList();
	
	@SuppressWarnings("deprecation")
	private  JasperReport getJasperReport(Map pageSet, String titleStr, List coluns, String reportType) throws JRException {
		JasperDesign design = new JasperDesign();

		// name="statistics"
		design.setName("富友erp数据导出");

		// columnSpacing="0"
		design.setColumnSpacing(0);
		// leftMargin="30"
		design.setLeftMargin(0);
		// rightMargin="30"
		design.setRightMargin(0);
		// topMargin="20"
		design.setTopMargin(0);
		// bottomMargin="20"
		design.setBottomMargin(0);
		
		design.setIgnorePagination(true);
		
		//up down left rigth pageWidth pageHeigth layout(V(竖版),H(横板))
		int up = mmToPixel(Integer.parseInt(pageSet.get("up").toString()));
		int down = mmToPixel(Integer.parseInt(pageSet.get("down").toString()));
		int left = mmToPixel(Integer.parseInt(pageSet.get("left").toString()));
		int right = mmToPixel(Integer.parseInt(pageSet.get("right").toString()));
		int pageWidth = mmToPixel(Integer.parseInt(pageSet.get("pageWidth").toString()));
		int pageHeight = mmToPixel(Integer.parseInt(pageSet.get("pageHeight").toString()));
		String layout = pageSet.get("layout").toString();
		
		
		int tableWidth = 0;
		for (int i = 0; i < coluns.size(); i++) {
			Map map = (Map)coluns.get(i);
			tableWidth += Integer.parseInt(map.get("width").toString());
		}
		
		if(reportType.equals("pdf")){

			// columnCount="1"
			// printOrder="Vertical"
			design.setPrintOrder(JRReport.PRINT_ORDER_VERTICAL);
			// orientation="Portrait"
			design.setOrientation(JRReport.ORIENTATION_PORTRAIT);
			// pageWidth="595"
			
			
			//缩放值			
			if(layout.equals("V")){
				scaling = (double)(pageWidth-left-right)/(double)tableWidth;
				design.setPageHeight(pageHeight);
				design.setPageWidth(pageWidth);
				design.setColumnWidth(pageWidth-left-right);
			}else{
				scaling = (double)(pageHeight-left-right)/(double)tableWidth;
				design.setPageHeight(pageWidth);
				design.setPageWidth(pageHeight);
				design.setColumnWidth(pageHeight-left-right);
			}
			
			// leftMargin="30"
			design.setLeftMargin(left);
			// rightMargin="30"
			design.setRightMargin(right);
			// topMargin="20"
			design.setTopMargin(up);
			// bottomMargin="20"
			design.setBottomMargin(down);
			// whenNoDataType="NoPages"
			design.setIgnorePagination(false);
			
			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(titleStr);
		titleText.setX(0);
		titleText.setFontSize(20);
		titleText.setHeight(40);
		titleText.setWidth( (int)Math.rint(tableWidth*scaling) );
		 
		 titleText.setTextAlignment(JRDesignStaticText.HORIZONTAL_ALIGN_CENTER);
		 titleText.setPdfFontName("STSong-Light");
		 titleText.setPdfEmbedded(true);
		 titleText.setPdfEncoding("UniGB-UCS2-H");
		 title.addElement(titleText);
		
		 design.setTitle(title);

		columnHeader = new JRDesignBand();
		



		this.ergodicColumns(coluns, X, 0);
		columnHeader.setHeight(columnHeaderHeight*(RowLength+1));
		X = 0;
		Y = 0;
		
		JRDesignBand detail = new JRDesignBand();
		detail.setHeight(detailHeight);
		
		for (int j = 0; j < alias.size(); j++) {
			// define fields
			JRDesignField field = new JRDesignField();
			field.setName( alias.get(j) );
			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.get(j) + "}");
			expression.setValueClass(String.class);
			textField.setExpression(expression);
			textField.setFontSize(fontSize);
			textField.setHeight(textHeight);
			textField.setWidth(widths.get(j));
			textField.setX(X);
			textField.setPdfFontName("STSong-Light");
			textField.setPdfEmbedded(true);
			textField.setPdfEncoding("UniGB-UCS2-H");
			textField.setHorizontalAlignment(JRBasePrintText.HORIZONTAL_ALIGN_CENTER);
			textField.setVerticalAlignment(JRBasePrintText.VERTICAL_ALIGN_MIDDLE);
			textField.setLeftBorder(JRBaseLine.PEN_1_POINT);
			textField.setTopBorder(JRBaseLine.PEN_1_POINT);
			textField.setRightBorder(JRBaseLine.PEN_1_POINT);
			textField.setBottomBorder(JRBaseLine.PEN_1_POINT);
			textField.setBlankWhenNull(true);
			detail.addElement(textField);
			
			X += widths.get(j);
		}
		
		design.setColumnHeader(columnHeader);
		design.setDetail(detail);
		
		if(reportType.equals("pdf")){
			JRDesignBand pageFooter = new JRDesignBand();
			pageFooter.setHeight(20);
			JRDesignTextField footerText = new JRDesignTextField();
			JRDesignExpression expressionF = new JRDesignExpression();
			expressionF.setText("$V{PAGE_NUMBER}");
			expressionF.setValueClass(Integer.class);
			footerText.setExpression(expressionF);
			if(layout.equals("V")){
					footerText.setX(pageWidth-right-100);
			}else{
				footerText.setX(pageHeight-right-100);
			}

			footerText.setFontSize(9);
			footerText.setHeight(15);
			footerText.setWidth(100);
			footerText.setPdfFontName("STSong-Light");
			footerText.setPdfEmbedded(true);
			footerText.setPdfEncoding("UniGB-UCS2-H");
			pageFooter.addElement(footerText);
			design.setPageFooter(pageFooter);			
		}

		return JasperCompileManager.compileReport(design);
	}
	
	private int RowLength = 0;
	private List ergodicColumns(List array, int X, int rowLength) {
		if(rowLength>=RowLength){
			RowLength = rowLength; 
		}
		List arrayC = new ArrayList();
		int w = 0;
		/**
		 * 需要得到所有表头信息。
		 * 如果为多级表头时，需要得到每级的表头信息，并记录其信息。 
		 * **/
		for(int i = 0; i<array.size(); i++){
			//创建表头信息
			Map map = (Map)array.get(i);
			int width = (int)Math.rint((Double.parseDouble(map.get("width").toString()))*scaling);

			// add column headers
			JRDesignStaticText staticText = new JRDesignStaticText();
			staticText.setText(map.get("title").toString());
			staticText.setFontSize(columnHeaderfontSize);
			staticText.setHeight( (Integer.parseInt(map.get("length").toString())+1)*textHeight );
			
			staticText.setWidth(width);
			staticText.setX(X);
			staticText.setY(rowLength*columnHeaderHeight);
			staticText.setPdfFontName("STSong-Light");
			staticText.setPdfEmbedded(true);
			staticText.setPdfEncoding("UniGB-UCS2-H");
			staticText.setHorizontalAlignment(JRBasePrintText.HORIZONTAL_ALIGN_CENTER);
			staticText.setVerticalAlignment(JRBasePrintText.VERTICAL_ALIGN_MIDDLE);
			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);
			if(map.get("array")==null){
				colunsMode.add(map);
				alias.add(map.get("name").toString());
				this.widths.add(width);
				w = width;
				arrayC.add(staticText);
			}else{
				Object[] obj = (Object[])map.get("array");
				List lista = new ArrayList();
				for (int j = 0; j < obj.length; j++) {
					lista.add(obj[j]);
				}
				List list = this.ergodicColumns(lista, X, rowLength+1 );
				/*
				 * 根据X坐标重新计算 每列位置。
				 * */
				staticText.setX(X);
				
				int xa = X;
				w = 0;
				for (int j = 0; j < list.size(); j++) {
					JRDesignStaticText staticTextA = (JRDesignStaticText)list.get(j);
					staticTextA.setX(xa);
					xa = xa + staticTextA.getWidth();
					w += staticTextA.getWidth();
				}
				if(w!=0){
					staticText.setWidth(w);					
				}else{
					w =	staticText.getWidth(); 
				}

			}
			X += w;
		}
		
		return arrayC;
	}
	
	

	/**
	 * 利用反射機制，裝拼數據
	 * 
	 * @param headers
	 * @param list
	 * @return
	 * @throws Exception
	 */
	private List<Object> getBaseList(List<String> headers, List<Map> list) throws Exception {
		List<Object> result = new ArrayList<Object>();
		int length = headers.size();
		DynaProperty[] dynaProps = new DynaProperty[length];
		for (int i = 0; i < length; i++) {
			dynaProps[i] = new DynaProperty(headers.get(i), String.class);
		}
		BasicDynaClass dynaClass = new BasicDynaClass("first", BasicDynaBean.class, dynaProps);
		for (Map obj : list) {
			DynaBean employee = dynaClass.newInstance();
			for (int i = 0; i < length; i++) {
				employee.set(headers.get(i), obj.get(headers.get(i)));
			}
			result.add(employee);
		}
		return result;
	}

}

 

此部分为此函数的核心代码，需要使用的时候需要调用 createReport 方法来执行。

 

createReport(Map pageSet, String title, List coluns, List list, String reportType)

传入参数：pageSet纸张部分设定

		//up down left rigth pageWidth pageHeigth layout(V(竖版),H(横板))
		int up = mmToPixel(Integer.parseInt(pageSet.get("up").toString()));
		int down = mmToPixel(Integer.parseInt(pageSet.get("down").toString()));
		int left = mmToPixel(Integer.parseInt(pageSet.get("left").toString()));
		int right = mmToPixel(Integer.parseInt(pageSet.get("right").toString()));
		int pageWidth = mmToPixel(Integer.parseInt(pageSet.get("pageWidth").toString()));
		int pageHeight = mmToPixel(Integer.parseInt(pageSet.get("pageHeight").toString()));
		String layout = pageSet.get("layout").toString();
		

 

title 打印的标题，如有必要可以进行相应的扩展

coluns 打印的表头数据

colums结构如下：

obj["name"] = 名称obj["title"] = 标题
obj["width"] = 表格宽度
obj["length"] = 如果为多表头的时候有效，设置此表头占用高度
obj["array"] = 如果为多表头，将其子表头信息填入（为List）
obj为Map类型 

 

reportType 导出文件的格式 pdf , xls , html 三种文件格式

 

 

组合完毕后，既能导出相应的文件出来了。

 

 

下面是结合flex 来创建 上述条件

flex代码

package com.wfy.sa.basic.report
{
	import com.wfy.components.advancedDataGrid.advancedDataGridClasses.AdvancedDataGridColumnGroup;
	import com.wfy.components.commandmanage.ICommand;
	import com.wfy.components.datagridext.DataGridColumnExt;
	import com.wfy.components.datagridext.DataGridExt;
	
	import flash.external.ExternalInterface;
	
	import mx.rpc.events.ResultEvent;
	import mx.rpc.remoting.RemoteObject;

	public class PrintReportByDataGridCommand implements ICommand
	{
		private var dataGrid:DataGridExt
		private var title:String;
		private var remoteObject:Object;
		private var pageSet:PageSet;
		public function PrintReportByDataGridCommand(pageSet:PageSet, title:String, dataGrid:DataGridExt)//DataGridExt 对 AdvancedDataGrid进行扩展，与我们没关系
		{
			this.title = title;
			this.pageSet = pageSet;
			this.dataGrid = dataGrid;
			
			this.remoteObject = new RemoteObject("UtilFunctionService");
		}
		
		private var colunsMode:Array = new Array();

		public function execute():void
		{
//			var array:Array = this.dataGrid.columns;//.getDataGridStyleAS().getColumns();
			var array:Array = this.dataGrid.groupedColumns;
			var coluns:Array = new Array();	
			coluns = this.ergodicColumns(array, 0);
			
			//遍历表格高度。
			coluns = this.getRowLengthColumns(coluns, 0);
			
			
			var list:Array = new Array();
			var length:int = this.dataGrid.getRowsLength();
			for(var j:int=0; j<length; j++){
				var obj:Object = new Object();
				for(var k:int=0; k<colunsMode.length; k++){
					obj[colunsMode[k]["name"]] = this.dataGrid.getLabel(j , colunsMode[k]["name"]);
				}
				list.push(obj);
			}
			
			remoteObject.createReportByDataGrid(pageSet, coluns, this.title, list, "pdf");	
		}
		
		public function OnResult(resultEvent:ResultEvent):String
		{
			var reportUrl:String = resultEvent.result.toString();

			ExternalInterface.call("window.open", "../"+reportUrl , "打印", "top=0, left=0, toolbar=no, menubar=no, scrollbars=no, resizable=yes, location=no, status=no", "_blank");

			return "";
		}
		
		
		private function getRowLengthColumns(array:Array, rowlength:int):Array {
			for(var i:int=0; i<array.length; i++){
				if(array[i]["array"]!=null){
					var arrayI:Array = this.getRowLengthColumns(array[i]["array"], rowlength+1);
//					arrayI[i]["length"] = RowLength-rowlength-1;
					array[i]["array"] = arrayI;
					array[i]["length"] = RowLength-rowlength-1;
				}else{
					array[i]["length"] = RowLength-rowlength;
				}
			}
			return array;
		}
		
		private var RowLength:int = 0;
		private function ergodicColumns(array:Array, rowlength:int):Array {
			if(rowlength>=RowLength){
				RowLength = rowlength; 
			}
			
			var arrayC:Array = new Array();		
			/**
			 * 需要得到所有表头信息。
			 * 如果为多级表头时，需要得到每级的表头信息，并记录其信息。 
			 * **/

			for(var i:int=0; i<array.length; i++){
				if(array[i] is AdvancedDataGridColumnGroup){
					var ad:AdvancedDataGridColumnGroup = array[i] as AdvancedDataGridColumnGroup;
					if(ad.visible){
//						if(ad.headerText!=null && ad.headerText!=""){
							var obj:Object = new Object();
							obj["name"] = ad.dataField;
							obj["title"] = ad.headerText;
							obj["width"] = ad.width;
							obj["array"] = this.ergodicColumns(ad.children, rowlength+1 );
							arrayC.push(obj);
					}
				}else if(array[i] is DataGridColumnExt){
					var da:DataGridColumnExt = array[i] as DataGridColumnExt;
					if(da.visible){
						if(da.dataField!=null && da.dataField!="" && da.headerText!=null && da.headerText!=""){
							var obj:Object = new Object();
							obj["name"] = da.dataField;
							obj["title"] = da.headerText;
							obj["width"] = da.width;//可能需要重新计算
							arrayC.push(obj);
							colunsMode.push(obj);
						}
					}
				}
			}
			return arrayC;
		}
		
	}
}

 

 此函数是我们在flex中做的操作，根据flex的datagrid得到打印的信息，以及表头信息。并传送给后台生成打印文件。

 

建议楼主可以把效果截图发上来，再附上代码。

代码上述已经包含了，别的也没什么代码了。
效果图其实也就是表格输出。

转我原创贴中的大量代码，没注明出处~~~
楼主注意一下~
我公司是台湾(inqgen)的分公司，所以才用的繁体字，
@author hxy  连我的名称和注解字体的没做修改,哎~
太不厚道了~

http://wingware.iteye.com/blog/286295