报表开发（测试版本一）

 听说下周三交货了，可是今天需求还在不停的变，你说一个报表，怎么就那么多要求，特别是那个列头变来变去，一会动态生成，一会成对出现，。。。
刚刚可紧张了，听说营运部的老大是个男人婆，可凶了，所以我很认真的敲打每个代码，一遍祈祷我写的都是有用的，一遍很努力的去想下一步该怎么做，
因为我怕自己做不好，被凶。哈哈 终于半个小时后，报表变成了我想要的效果。啦啦啦啦啦， 我是卖报的小行家。。。给她取个名字吧  叫 第一个测试版本
package javaservlets.production.mpexcel;

import java.io.IOException;
import java.io.OutputStream;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Enumeration;

import javaservlets.common.util.Debug;
import javaservlets.common.util.SimpleServlet;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import jxl.CellFormat;
import jxl.Workbook;
import jxl.write.Formula;
import jxl.write.Label;
import jxl.write.WritableCell;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;
@SuppressWarnings({ "unchecked", "serial" })
public class MP_PC_jxl extends HttpServlet {
	@SuppressWarnings({ "unused", "deprecation" })
	private void modiFormulaCell(WritableSheet dataSheet, int col, int row, int startPos, int endPos, CellFormat format) 
		throws RowsExceededException, WriteException {
        String f = getFormula(col, row, startPos, endPos);
        WritableCell cell = dataSheet.getWritableCell(col, row);
            Formula lbl = new Formula(col, row, f);
            if(null != format) {
                lbl.setCellFormat(format);
            } else {
                lbl.setCellFormat(cell.getCellFormat());
            }
            dataSheet.addCell(lbl);
    }
    
    private String getFormula(int col, int row, int startPos, int endPos)
            throws RowsExceededException, WriteException
    {
        char base = 'A';
        char cc = base;
        StringBuffer formula = new StringBuffer(128);
        formula.append("SUM(");
        if (col <= 25) {
            cc = (char) (col % 26 + base);
            formula.append(cc).append(startPos).append(":")
                   .append(cc).append(endPos).append(")");
        }
        return formula.toString();
    }
	
	public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

		String no = null;
		Enumeration enumeration = request.getParameterNames();
		while (enumeration.hasMoreElements()) {
			String paramName = (String) enumeration.nextElement();
			if (Debug.Level > 0) {
				 System.out.println("request parameter [" + paramName + "]=" +
				 request.getParameter(paramName));
			}
		}
		no = request.getParameter("MP_ID");
		
		OutputStream out = null;
		Connection con = null;	
		Statement stmt = null;
		ResultSet rs = null;
		try {
			response.setContentType("application/vnd.ms-excel");
			response.setHeader("Content-Disposition", "attachment; filename=PC_List.xls");
			String myFmt=new SimpleDateFormat("yyyy年MM月dd日 HH時mm分ss秒").format(new Date());
			System.out.println("開始創建excel，創建時間為："+myFmt);
			WritableWorkbook w = Workbook.createWorkbook(response.getOutputStream());
			WritableSheet s = w.createSheet("PC list", 0);
			s.getSettings().setDefaultColumnWidth(20); //设置列的宽度默认为15
			
			//s.getSettings().setDefaultRowHeight(h) 設置默認行高 
			//s.getSettings().setShowGridLines(true);//設置顯示grid網格 true
			s.setRowView(3, 750);  //设置第i+1 行的高度
			
			con = SimpleServlet.axaptaCP.getConnection();
			stmt = con.createStatement();
			//标记第几个结果集
			int tag = 0 ;
			boolean label = true;
		    stmt.execute("{call " + SimpleServlet.axaptaCP.elbaseDB + ".dbo.el_mp_pc_report_view( '" +no + "')}");
		    System.out.println("調用存儲過程：--->"+"{call " + SimpleServlet.axaptaCP.elbaseDB + ".dbo.el_mp_pc_report_view( '" +no + "')}");
		    //初始化数据
		    String myvalue = null;
		    Date mydate = null ;
		    int testint = 0;
			int k = 4;
			//获取表头显示信息
			Statement stmt2 = null;
			ResultSet rs2 = null;
			stmt2 = con.createStatement();
			rs2 = stmt2.executeQuery("select PROJECT_ID, PROJECT_DESC from " + SimpleServlet.axaptaCP.elbaseDB + ".DBO.mp_header where mp_id = '" + no + "'");
			//获取sku信息
			ArrayList skuList = (ArrayList<String>)request.getAttribute("columnDisp");
			ArrayList sku = (ArrayList<String>)request.getAttribute("column");
			int mycol = skuList.size();
			
//************************************************STYLE*****************************************************************************
			/*
			 * 
			 * 設置自動換行
			 * 水平居中顯示
			 * 垂直居中顯示
			 * 設置邊框樣式
			 * 
			 * */
			jxl.write.WritableCellFormat wcsB0 = new jxl.write.WritableCellFormat();
			wcsB0.setWrap(true); 
			wcsB0.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);  
			wcsB0.setAlignment(jxl.format.Alignment.CENTRE);   
			wcsB0.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);
			
			
			jxl.write.WritableCellFormat wcsB = new jxl.write.WritableCellFormat();
			wcsB.setWrap(true); 
			wcsB.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);
			
			jxl.write.WritableCellFormat wcsB2 = new jxl.write.WritableCellFormat();
			wcsB2.setAlignment(jxl.format.Alignment.CENTRE);
			wcsB2.setWrap(true);
			wcsB2.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);
			
			jxl.write.WritableFont mywf = new jxl.write.WritableFont(WritableFont.TIMES,10,WritableFont.BOLD,false,jxl.format.UnderlineStyle.NO_UNDERLINE,
					jxl.format.Colour.BLACK);
			jxl.write.WritableCellFormat mywc = new jxl.write.WritableCellFormat(mywf);
			
			jxl.write.WritableFont wfct = new jxl.write.WritableFont(WritableFont.TIMES,12,WritableFont.BOLD,false,jxl.format.UnderlineStyle.NO_UNDERLINE,
					jxl.format.Colour.GREEN); 
			jxl.write.WritableCellFormat wcsBa = new jxl.write.WritableCellFormat(wfct);
			wcsBa.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);
			wcsBa.setAlignment(jxl.format.Alignment.CENTRE);
			
			wcsBa.setBackground(jxl.format.Colour.VERY_LIGHT_YELLOW); 
			
//			table header
			jxl.write.WritableFont wfc = new jxl.write.WritableFont(WritableFont.TIMES, 12, WritableFont.BOLD, false, jxl.format.UnderlineStyle.NO_UNDERLINE,
					jxl.format.Colour.GREEN);
			jxl.write.WritableCellFormat wchB = new jxl.write.WritableCellFormat(wfc);
			wchB.setAlignment(jxl.format.Alignment.CENTRE);
			//wchB.setBackground(jxl.format.Colour.GRAY_25);
			// 10 号 红色字体 加粗 居右显示
			jxl.write.WritableFont wfc1 = new jxl.write.WritableFont(WritableFont.TIMES,10,WritableFont.BOLD,false,jxl.format.UnderlineStyle.NO_UNDERLINE,jxl.format.Colour.RED);
			jxl.write.WritableCellFormat wchB1 = new jxl.write.WritableCellFormat(wfc1);
			wchB1.setAlignment(jxl.format.Alignment.RIGHT);
			wchB1.setBackground(jxl.format.Colour.GRAY_25);
			
//***********************************************************************************************************************************
			
			while(rs2.next()){
				s.mergeCells(3, 0, 6, 1);
				s.addCell(new Label(3, 0, rs2.getString(1), wchB));
				s.mergeCells(7, 0, 7+mycol, 1);
				s.addCell(new Label(7, 0, rs2.getString(2), wchB));
			}
//			table header about time and date
			jxl.write.DateFormat df = new jxl.write.DateFormat("yyyy-MM-dd");//yyy-MM-dd hh:mm:ss 年月日时分秒
			jxl.write.WritableCellFormat wcfDF = new jxl.write.WritableCellFormat(df);
			wcfDF.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);
			
//			format number
			jxl.write.NumberFormat nf = new jxl.write.NumberFormat("#");
			jxl.write.WritableCellFormat wcfN = new jxl.write.WritableCellFormat(nf);
			wcfN.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);
			wcfN.setBackground(jxl.format.Colour.SKY_BLUE);
			/*
			 * 		參數明細  0(='_'=)0
			 * 
			 *	 	isHaveCosmeticcode  標記cosmeticcode是否為空
			 * 		mark	 標記動態生陳列是否-2
			 * 		va  标记sku自增数
			 * 
			 * */
			String isHaveCosmeticcode = null; 
			String mark = null;  
			int column = 20; 
			int va = 0; 
			while(label){
				int i = 0;
				i = stmt.getUpdateCount();
				boolean up_label = false;
				if(i != -1){
					up_label = stmt.getMoreResults();//移动到此SQLServerStatement 对象的下一个结果。如果返回一个结果及
					continue;
				}
				boolean flag_label = false;
				rs = stmt.getResultSet();
				 if(rs != null){
					 ResultSetMetaData rsmd = rs.getMetaData();
					 int columnCount = rsmd.getColumnCount();
					 	if(tag ==0){
					 		while(rs.next()){
					 			for(int j=0;j<columnCount;j++){
					 				System.out.println("columnCount-->"+columnCount);
					 				if(j ==0){
					 					System.out.println("test 類型"+rsmd.getColumnType(j+1));
					 					s.mergeCells(0, 0, 1, 0);
					 					s.addCell(new jxl.write.DateTime(13+mycol, 2,rs.getDate(j+1), wcfDF));
					 				}else if(j==1){
					 					s.setColumnView(0, 25);
					 					s.addCell(new Label(0, 0,rs.getString(j+1), wcsBa));
					 				}else if(j ==2){   
					 					isHaveCosmeticcode = rs.getString(j+1);
					 				}
					 			}
					 		}
					 	}else if(tag == 1){
					 		while(rs.next()){
					 			System.out.println("創建動態生陳列test");
					 			if(isHaveCosmeticcode.equals("yes")){
					 				s.mergeCells(13+mycol, 2, 15+mycol, 2);
					 				s.addCell(new Label(column+mycol,3,rs.getString(1),wcsB0));
					 				mark = "yes";
					 			}else{
					 				mark = "no";
					 				s.addCell(new Label(column+mycol-2,3,rs.getString(1),wcsB0));
					 			}
					 			column++;
					 		}
					 		System.out.println("column value==>"+column);
					 	}else if(tag == 2){
							 while(rs.next()){
									s.mergeCells(16+mycol, 0, 17+mycol, 2);
									s.addCell(new Label(16+mycol,0,"Pkg + Version release within \n"+rs.getString(2) +" Days",wcsB0));
							 }
						}else if(tag == 3){
							while(rs.next()){
								if(isHaveCosmeticcode.equals("yes")){
									s.mergeCells(18+mycol, 0, 19+mycol, 2);
									s.addCell(new Label(18+mycol,0,"Cosmetic release within \n"+rs.getString(2)+" Days",wcsB0));
								}
							}
						}else if(tag == 4){
							while (rs.next()) {
								for (int j = 0; j < columnCount; j++) {
									if (rs.getString(j + 1) == null) {
										myvalue = "";
									}else if(rsmd.getColumnTypeName(j+1).equals("smalldatetime")){ //转换excel数据类型
										mydate = rs.getDate(j+1);
									}else if (rsmd.getColumnTypeName(j+1).equals("numeric")){
										testint = rs.getInt(j+1);
									}else {
											myvalue = rs.getString(j + 1);
									}
									if(k == 4){
										if(j == 0){
											s.setColumnView(0, 15); //設置列的寬度
											s.addCell(new Label(0, 3, "PC #", wcsB0));
										}else if(j ==1){
											s.setColumnView(1, 15);
											s.addCell(new Label(1, 3, "Revision", wcsB0));
										}else if(j == 2){
											s.addCell(new Label(2, 3, "CustP/O#", wcsB0));
										}else if(j == 3){
											s.addCell(new Label(3, 3, "Customer", wcsB0));
										}else if(j == 4){
											s.addCell(new Label(4 , 3, "Country", wcsB0));
										}else if(j ==5){
											s.addCell(new Label(5,3,"Mktg Share",wcsB0));
										}else if(j ==6 ){
											s.addCell(new Label(6,3,"Item#",wcsB0));
										}else if(j == 7){
											s.addCell(new Label(7,3,"MIX",wcsB0));
										}else if(j > columnCount-mycol-1 && (j < columnCount)){
											s.setColumnView(j - (columnCount-mycol)+8, 20);
											s.addCell(new Label(j - (columnCount-mycol)+8, 3, ((String) skuList.get(j-(columnCount-mycol))).replace("\\n", "\n"), wcsB2));
										}
										else if(j == 8+mycol ){
											s.addCell(new Label(8+mycol , 3, "Inn", wcsB0));
										}else if(j == 9+mycol ){
											s.addCell(new Label(9+mycol , 3, "Out", wcsB0));
										}else if(j == 10+mycol ){
											s.addCell(new Label(10+mycol , 3, "PC qty", wcsB0));
										}else if(j == 11+mycol ){
											s.addCell(new Label(11+mycol , 3, "Ctn", wcsB0));
										}else if(j ==12+mycol ){
											s.addCell(new Label(12+mycol, 3,"Rev. Details",wcsB0));
										}else if(j == 13+mycol ){
											s.addCell(new Label(13+mycol , 3, "Request Ship Date", wcsB0));
										}else if(j == 14+mycol ){
											s.addCell(new Label(14+mycol , 3, "Insp.Date", wcsB0));
										}else if(j == 15+mycol ){
											s.addCell(new Label(15+mycol , 3, "Customer Insp. Date", wcsB0));
										}else if(j ==16+mycol){
											s.addCell(new Label(16+mycol,3,"Packaging",wcsB0));
										}else if(j ==17+mycol){
											s.addCell(new Label(17+mycol,3,"Packaging Release Status",wcsB0));
										}else if(j ==18+mycol){
											if(isHaveCosmeticcode.equals("yes")){
												s.addCell(new Label(18+mycol,3,"Cosmetic Version",wcsB0));
												s.addCell(new Label(19+mycol,3,"Cosmetic Release Status",wcsB0));
											}
										} 
										else if(j > columnCount-2*mycol-1 && (j < columnCount-mycol)){
											if(mark.equals("yes")){
												s.setColumnView(column+mycol+va, 25);
	//											System.out.println("column is :"+column);
												System.out.println("創建sku2列");
	//											System.out.println("mycol is :"+mycol);
												s.addCell(new Label(column+mycol+va, 3, ((String) skuList.get(j-(columnCount-2*mycol))).replace("\\n", "\n"), wcsB2));
											}else{
												System.out.println("創建無comstccode列的sku");
												s.setColumnView(column+mycol+va-2, 25);
												s.addCell(new Label(column+mycol+va-2,3,((String)skuList.get(j-(columnCount-2*mycol))).replace("\\n", "\n"),wcsB2));
											}
											++va;
										}
									}
									if(k >= 4){  //j = j rs =j+1 value
										if(j == 33){
											s.addCell(new Label(0, k,myvalue, wcsB));
										}else if(j == 10){
											s.addCell(new Label(1, k, myvalue, wcsB));
										}else if(j == 19){
											s.addCell(new Label(2, k, myvalue, wcsB));
										}else if(j == 20){
											s.addCell(new Label(3, k,myvalue, wcsB));
										}else if(j == 7){
											s.addCell(new Label(4 , k, myvalue, wcsB));
										}else if(j == 9){
											s.addCell(new Label(5,k,myvalue,wcsB));
										}else if(j == 21){
											s.addCell(new Label(8+mycol , k, String.valueOf(testint), wcsB));
										}else if(j == 22){
											s.addCell(new Label(9+mycol , k, String.valueOf(testint), wcsB));
										}else if(j == 31){
											s.addCell(new Label(6,k,myvalue,wcsB));
										}else if(j == 34){
											s.addCell(new Label(7,k,myvalue,wcsB));
										}else if(j == 35){
											s.addCell(new Label(10+mycol , k, String.valueOf(testint), wcsB));
										}else if(j == 8){
											s.addCell(new Label(11+mycol , k, myvalue, wcsB));
										}else if(j == 23){
											s.addCell(new Label(12+mycol , k, myvalue, wcsB));
										}else if(j == 24){
											s.setColumnView(16, 15);
											s.addCell(new jxl.write.DateTime(13+mycol , k, mydate, wcfDF));
										}else if (j ==4){
											s.setColumnView(17,15);
											s.addCell(new jxl.write.DateTime(14+mycol,k,mydate,wcfDF));
										}else if (j ==26){
											s.setColumnView(18, 15);
											s.addCell(new jxl.write.DateTime(15+mycol,k,mydate,wcfDF));
										}else if(j == 0){
											s.addCell(new Label(16+mycol,k,myvalue,wcsB));
										}else if(j == 2){
											s.addCell(new Label(17+mycol,k,myvalue,wcsB));
										}else if(j == 1 ){
											s.addCell(new Label(18+mycol,k,myvalue,wcsB));
										}else if(j == 3){//如果，Cosmetic Version栏位对应为空，则Cosmetic Release Status不予计算
												s.addCell(new Label(19+mycol,k,myvalue,wcsB));
										}
										/*
										 * 动态生成列  0(='_'=)0
										 * */
										else if(j>36 && j<36+mycol+1){
											if(mark.equals("yes")){
												s.addCell(new Label(j-columnCount+2*mycol+2*(column-20)+20+mycol,k,String.valueOf(rs.getInt(j+1)),wcsB));
											}else{
												s.addCell(new Label(j-columnCount+2*mycol+2*(column-20)+20+mycol-2,k,String.valueOf(rs.getInt(j+1)),wcsB));
											}
										}else if(j> 36+mycol && j< 36+2*mycol+1){
												s.addCell(new Label(j-columnCount+mycol+(column-20)+8,k,String.valueOf(rs.getInt(j+1)),wcsB));
											 
										}else if (j>36+2*mycol && j<columnCount){
											if(mark.equals("yes")){
													s.addCell(new Label(j-columnCount+(column-20)+16+4+mycol,k,myvalue.equals("")||myvalue.equals("null")?" ":myvalue,wcsB));
											}else{
												s.addCell(new Label(j-columnCount+(column-20)+16+4+mycol-2,k,myvalue.equals("")||myvalue.equals("null")?" ":myvalue,wcsB));
											}
										}
									}
								}
								k++;
							}
						}
						 tag++;
						 flag_label = stmt.getMoreResults();
						continue;
				 }
				 label = up_label ||flag_label;
			}
			//生成表头
			if(mark.equals("yes")){
				s.mergeCells(mycol+column,0,mycol+column+mycol-1,2);
				s.addCell(new Label((mycol+column),0,"CONTENT BREAKDOWN",wchB1));
			}else{
				s.mergeCells(mycol+column-2,0,mycol+column+mycol-1-2,2);
				s.addCell(new Label((mycol+column)-2,0,"CONTENT BREAKDOWN",wchB1));
			}
			w.write();
			String myFmt2=new SimpleDateFormat("yyyy年MM月dd日 HH時mm分ss秒").format(new Date());
			System.out.println("excel創建完成，結束時間為："+myFmt2);
			w.close();
		} catch (Exception e) {
			System.out.println("創建excel失敗，錯誤信息:"+e.getMessage());
			e.printStackTrace();
			throw new ServletException("Exception in Excel Sample Servlet", e);
		} finally {
			//释放资源
			SimpleServlet.axaptaCP.free(con);			
			if (out != null)
				out.close();
			if (stmt != null){
				try {
					stmt.close();
				} catch (SQLException e) {
					e.printStackTrace();
				}
			}
		}
	}
}