200分求大家伙儿解决jasperreport通过APPLET客户端打印

public String PrintStanding() throws Exception{                String querydate=request.getParameter("querydate");        String storeid=request.getParameter("storeId");                String storeStatus=request.getParameter("storeStatus");        String goodsType=request.getParameter("goodsType");        String goodsId=request.getParameter("goodsId");                String printUser=request.getParameter("printUser");        String StoreName=request.getParameter("StoreName");        System.out.println();                Map<String, Object> waremap=new HashMap<String, Object>();        waremap.put("goodsType", goodsType);        waremap.put("goodsId", goodsId);        waremap.put("storeid", storeid);        waremap.put("storeStatus", storeStatus);        List<WarehouseGoods> list=warehouseInService.printWareStanding(waremap);                                Map<String, Object> parameter = new HashMap<String, Object>();          SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");        parameter.put("QUERY_TIME",sdf.parse(querydate));        parameter.put("CREATE_USER",printUser);        parameter.put("STORE_NAME",StoreName);                                       //对数据和打印模板进行填充        response.setContentType("application/octet-stream");        response.setBufferSize(8986000);        ServletOutputStream ouputStream = response.getOutputStream();//        JasperReport jrt = JasperCompileManager.compileReport(request.getRealPath(STANDING_PRINT_MODEL_FILE));// 编译报表格式                JRDataSource dataSource = new JRBeanCollectionDataSource(list);        JasperPrint jpt = JasperFillManager.fillReport(request.getRealPath(STANDING_PRINT_MODEL_FILE), parameter,dataSource);// 匹配数据源，生成JasperPrint        //JasperPrintManager.printReport(report, false);//此处为服务器打印，可以看见报表样式未丢失,但不符合需求，需客户端打印        //打印数据输出        ObjectOutputStream oos = new ObjectOutputStream(ouputStream);        oos.writeObject(jpt);        oos.flush();        oos.close();                return null;    }

import java.io.PrintWriter;import java.io.StringWriter;import java.net.URL;import javax.swing.JOptionPane;import net.sf.jasperreports.engine.JasperPrint;import net.sf.jasperreports.engine.JasperPrintManager;import net.sf.jasperreports.engine.util.JRLoader;public class JRPrinterApplet extends javax.swing.JApplet {    private URL url = null;    private JasperPrint jasperPrint = null;    /** Creates new form AppletViewer */    public JRPrinterApplet() {    }    public void init() {        String strUrl = getParameter("REPORT_URL");        if (strUrl != null) {            try {                url = new URL(getCodeBase(), strUrl);            } catch (Exception e) {                StringWriter swriter = new StringWriter();                PrintWriter pwriter = new PrintWriter(swriter);                e.printStackTrace(pwriter);                JOptionPane.showMessageDialog(this, swriter.toString());            }        } else {            JOptionPane.showMessageDialog(this,"init():Source URL not specified");        }    }    public void start() {        if (url != null) {            if (jasperPrint == null) {                try {                    //System.out.println("进入start方法，即将下载pdf文件");                    jasperPrint = (JasperPrint) JRLoader.loadObject(url);                    //System.out.println("进入start方法，下载pdf文件完毕");                } catch (Exception e) {                    StringWriter swriter = new StringWriter();                    PrintWriter pwriter = new PrintWriter(swriter);                    e.printStackTrace(pwriter);                    JOptionPane.showMessageDialog(this, swriter.toString());                }            }            if (jasperPrint != null) {                final JasperPrint print = jasperPrint;                Thread thread = new Thread(new Runnable() {                    public void run() {                        try {                            //System.out.println("进入start方法，即将打印pdf文件");                            JasperPrintManager.printReport(print, false);                        } catch (Exception e) {                            StringWriter swriter = new StringWriter();                            PrintWriter pwriter = new PrintWriter(swriter);                            e.printStackTrace(pwriter);                            JOptionPane.showMessageDialog(null,swriter.toString());                        }                    }                });                thread.start();            } else {                JOptionPane.showMessageDialog(this, "Empty report.");            }        } else {            JOptionPane.showMessageDialog(this,"start():Source URL not specified");        }    }}