JAVA操做Excel 可配置，動態 生成複雜表頭 複雜的中國式報表表頭

1. [代碼]特別聲明     

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通過了幾個月的強度測試如今已經應用到了生產環境 ，如今貼的代碼是當初的測試版，並不完善 ，等過點時間吧 徹底靜下心來 準備把整個開源出來 好與很差先不說，最起碼如今幾個大系統都在用     我再聲明下，這個代碼是能夠動態配置表頭的，別再回評論說怎麼不先定義 模板 了！受夠了，先定義模板用大家給我說麼！不裝B能死麼？

2. [代碼]持續兩週上熱門的話 貼數據庫樹表信息 不過如今能經過代碼得到到建表信息，就倆張表，一張類別表，一張就是核心表樹表信息了     

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1	持續兩週上熱門的話 貼數據庫樹表信息 不過如今能經過代碼得到到建表信息，就倆張表，一張類別表，一張就是核心表樹表信息了

3. [圖片] QQ圖片20150717175633.png    

4. [代碼][Java]代碼 該代碼實現了Excel複雜表頭的生成 基於sql server 的一張樹表 大家能夠 看代碼自行建庫    

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packagecom.jingjiu.util;   importjava.io.FileNotFoundException; importjava.io.FileOutputStream; importjava.io.IOException; importjava.io.OutputStream; importjava.sql.Connection; importjava.sql.PreparedStatement; importjava.sql.ResultSet; importjava.sql.SQLException; importjava.util.ArrayList; importjava.util.HashMap; importjava.util.List; importjava.util.Map;   importorg.apache.poi.hssf.usermodel.HSSFCell; importorg.apache.poi.hssf.usermodel.HSSFCellStyle; importorg.apache.poi.hssf.usermodel.HSSFRow; importorg.apache.poi.hssf.usermodel.HSSFSheet; importorg.apache.poi.hssf.usermodel.HSSFWorkbook; importorg.apache.poi.ss.util.Region; importorg.aspectj.weaver.patterns.ThisOrTargetAnnotationPointcut;   importcom.google.common.collect.Table.Cell;     publicclassGenerExcle {       HSSFWorkbook wb =null;     HSSFSheet sheet =null;     HSSFCellStyle style =null;             publicvoidreData(){         //全部表頭集合         List allTableHead =newArrayList();                                                       }                   publicGenerExcle(){                     wb =newHSSFWorkbook();               sheet = wb.createSheet("new   sheet");               style = wb.createCellStyle();// 樣式對象               style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 垂直               style.setAlignment(HSSFCellStyle.ALIGN_CENTER);// 水平                         //style.setBottomBorderColor(HSSFCellStyle.BORDER_DOTTED);           style.setWrapText(true);               }     /**      * 保存生成的文件      * @param name      */     publicvoidsaveAaSpecName(String name){         OutputStream out;         try{             out =newFileOutputStream(name);             wb.write(out);                           System.out.println(out);         }catch(FileNotFoundException e) {             // TODO Auto-generated catch block             e.printStackTrace();         }catch(IOException e) {             // TODO Auto-generated catch block             e.printStackTrace();         }                         }     public voidaddRow(intcount){         for(inti =0; i<count; i++)          sheet.createRow((short) i);       }     publicvoidtestAll(){         this.addRow(3);         sheet.addMergedRegion(newRegion(0,(short)0,2,(short)0));         HSSFRow row = sheet.getRow(0);         HSSFCell cell = row.createCell(0);         cell.setCellValue("公司名");         this.saveAaSpecName("e:/like.xls");               }     /**      * 合併cell並設置值      * @param startRow      * @param startCell      * @param endRow      * @param endCell      * @param leve      * @param cellMove      * @param content      */     public voidmergeCell(intstartRow,intstartCell,intendRow,intendCell,intleve,intcellMove,String content){           sheet.addMergedRegion(newRegion(startRow,(short)startCell,endRow,(short)endCell));         HSSFRow row = sheet.getRow(startRow);         HSSFCell cell= row.createCell(cellMove);               cell.setCellValue(content);                   cell.setCellStyle(style);                                                       }     publicStringBuffer excleToHtml(){         ExcelShower es =newExcelShower();         StringBuffer excleToHtml = es.excleToHtml(this.wb);         returnexcleToHtml;               }             public staticvoidmain(String [] args){           GenerExcle ge =newGenerExcle();         // ge.testAll();           if(true){             //  return;           }           intreportId =1;           getReportHeaderById(ge, reportId);       }      /**       * 根據報表ID遍歷該報表的全部表頭       * 並以主表頭爲原子單位進行處理       * @param ge       * @param reportId       */     privatestaticvoidgetReportHeaderById(GenerExcle ge,intreportId) {         //拿到煤報表的一級全部一級表頭           String sql =                   "with tem_header(id,pid,headervalue,leve,custom_col) as(\n"+                           "\n"+                           "select id ,pid, headvalue,leve, custom_col from dbo.headerinfo where pid = 0 and report_id = ?\n"+                           "union all\n"+                           "select  a.id,a.pid,a.headvalue,a.leve ,a.custom_col from dbo.headerinfo a ,tem_header b\n"+                           "where a.pid = b.id\n"+                             "\n"+                             "and  a.report_id = ?"+                           "\n"+                           "\n"+                           ")\n"+                           "select * from tem_header where  pid = 0";               PreparedStatement ps =null;           ResultSet rs  =null;           Connection connection =null;           try{             connection= DBUtil.getConnection();             ps = connection.prepareStatement(sql);             ps.setInt(1, reportId);             ps.setInt(2, reportId);             ps.executeQuery();             rs = ps.getResultSet();             intmax =0;                       while(rs.next()) {                 intid = rs.getInt("id");                 intpid = rs.getInt("pid");                 String headvalue = rs.getString("headervalue");                 intleve = rs.getInt("leve");                 System.out.println("ID"+id+"Pid"+pid+"頭名"+headvalue);                 //先判斷最深層有多少層                 intmaxLeve = getMaxLeve(reportId,id,connection,ps,rs);                 if(maxLeve>max){                     max = maxLeve;                 }                               }             //根據最深層添加行             ge.addRow(max);             ps.executeQuery();             rs = ps.getResultSet();             intcurrentIndex =0;             intindex =0;             Map<String, Integer> moveInfoMap =newHashMap<String, Integer>();             Map<String, Integer> leveMoveInfoMap =newHashMap<String, Integer>();                           moveInfoMap.put("currentIndex",0);                 moveInfoMap.put("cellMove",0);                               while(rs.next()) {                 moveInfoMap.put("index",index);                 intid = rs.getInt("id");                 intpid = rs.getInt("pid");                 String headvalue = rs.getString("headervalue");                 intleve = rs.getInt("leve");                 intcustom_col = rs.getInt("custom_col");                 if( leveMoveInfoMap.get(leve+"")==null){                     leveMoveInfoMap.put(leve+"",0);                 }                 System.out.println("ID"+id+"Pid"+pid+"頭名"+headvalue);                                   generHeader(id,                                      pid,                                      headvalue,                                      custom_col,                                      max,                                      rs,                                      ps,                                      connection,                                      ge,                                      reportId,                                      leve,                                      currentIndex,                                      moveInfoMap,                                      leveMoveInfoMap);                 //當前索引自加1                 currentIndex++;                 index++;             }                       //  ge.saveAaSpecName("e:/today.xls");             ge.excleToHtml();             DBUtil.closeResources(connection, ps, rs);                                         System.out.println(connection);         }catch(SQLException e) {             // TODO Auto-generated catch block             e.printStackTrace();         }finally{             DBUtil.closeResources(connection, ps, rs);         }     }   /**  * 判斷最深有多少層  * @param i  * @param id  * @param rs  * @param ps  * @return  */       privatestaticintgetMaxLeve(intreportId,intid,Connection con, PreparedStatement ps, ResultSet rs) {         String sql=                 "with tem_header(id,pid,headervalue,leve) as(\n"+                         "\n"+                         "select id ,pid, headvalue,leve from dbo.headerinfo where pid = 0 and report_id = ? and id = ?\n"+                         "union all\n"+                         "select  a.id,a.pid,a.headvalue,a.leve from dbo.headerinfo a ,tem_header b\n"+                         "where a.pid = b.id\n"+                         "\n"+                         "and  a.report_id = ?"+                         "\n"+                         ")\n"+                         "select count(1) from (select t.leve from tem_header t group by t.leve) mm";      try{     ps =    con.prepareStatement(sql);     ps.setObject(1, reportId);     ps.setObject(2, id);     ps.setObject(3,reportId);     rs  = ps.executeQuery();     if(rs.next())     returnrs.getInt(1);     return-1;     }catch(SQLException e) {         // TODO Auto-generated catch block         e.printStackTrace();     }         return0;     }         privatestaticvoidgenerAfterHeader(intid,             intpid,             String headvalue,             intmax,             ResultSet rs,             PreparedStatement ps,             Connection connection,             GenerExcle ge,             intreportId,             intleve,             intcurrentIndex,             Map<String, Integer> moveInfoMap,             Map<String, Integer> leveMoveInfoMap,             Map<String, Map<String,Integer>> repairMovePoint,             intindex){                                         /**                              * 處理多級表頭的合併                              */                     //但到表頭的直接後繼表頭                     rs = getDirAfter(id,pid,reportId,leve,connection,ps,rs);                     //存放直接後繼的子頭集合                     List<DataModel> listResultSets =newArrayList<DataModel>();                     booleanflag =false;                     try{                     //  rs.last();                     //  int size = rs.getRow();                         //rs.first();                                                   while(rs.next()){                         int_id= rs.getInt("id");                         int_pid = rs.getInt("pid");                         String _headvalue = rs.getString("headervalue");                         int_leve = rs.getInt("leve");                         if( leveMoveInfoMap.get(_leve+"")==null){                             leveMoveInfoMap.put(_leve+"",0);                         }                         Map<String,Integer> infoMovePlus =null;                         if(repairMovePoint.get(_leve+1+"")==null){                              infoMovePlus =newHashMap<String, Integer>();                         }else{                         infoMovePlus =repairMovePoint.get(_leve+1+"");                         }                         infoMovePlus.put(0+"",0);                         infoMovePlus.put(rs.getRow()+"",0);                         repairMovePoint.put(_leve+1+"", infoMovePlus);                         /**                          * 判斷該表頭有沒有直接後繼節點                          * 若是有不作向下合併處理                          * 若是沒有則合併下面的空格                          */                                       //若是不是最後一行則會發生空出一格的狀況這時候須要進行行合併                     int_temDownMovePonit =0;                     int_currentMaxLeve = leveMoveInfoMap.get("currentMaxLeve");                         if(_leve<_currentMaxLeve&&_leve>1){                             ResultSet _rs = getDirAfter(_id, _pid, reportId, _leve, connection, ps, rs);                             //若是沒有直接後繼節點                             if(!_rs.next()){                                 //判斷須要向下合併幾個位移量                                 _temDownMovePonit =3-_leve;                                 //讓如下每一級的指針右移1位補空位                         /*      if(row==1){                                 for(int i = 0;i<3-_leve;i++){                                                                       //  leveMoveInfoMap.put(_leve+i+1+"",leveMoveInfoMap.get(_leve+i+1+"")+1);                                                                       }                                 ｝*/                                 //若是是連續有值                                 if(infoMovePlus.get(rs.getRow()-1+"")!=null&&infoMovePlus.get(rs.getRow()-1+"")>=1){                             //      infoMovePlus.put(rs.getRow()-1+"",infoMovePlus.get(rs.getRow()-1+"")+1);                                 }                                                                   infoMovePlus.put(rs.getRow()+"",infoMovePlus.get(rs.getRow()-1+"")+1);                                                                                                                                   }                                                                                     }                                                intplusPoint =0;                         if(!flag){                         if(repairMovePoint.get(_leve+"")!=null){                             Map<String, Integer> map = repairMovePoint.get(_leve+"");                             int_rowCount = rs.getRow();                             for(inti =1;i<=index;i++)                             if(map.get(i+"")!=null){                             plusPoint = map.get(i+"");                             }                             flag =true;                                                       }                         }                         int_sizeMoveCount = leveMoveInfoMap.get(_leve-1+"");                         intsizeMoveCount = leveMoveInfoMap.get(_leve+"")+plusPoint;                     //  int _tem=moveInfoMap.get("cellMove");                         intstart =_leve-1+(repairMovePoint.get("mainRowCount").get("mainRowCount")-1);                         intmaxCurrentLeveMegreCell = getMaxCurrentLeveMegreCell(_id, reportId, _pid, ps, rs, connection);                     //  ge.mergeCell(_leve-1, sizeMoveCount, _leve-1+_temDownMovePonit, sizeMoveCount+maxCurrentLeveMegreCell-1, _leve, sizeMoveCount, _headvalue);                             ge.mergeCell(start, sizeMoveCount, start+_temDownMovePonit, sizeMoveCount+maxCurrentLeveMegreCell-1, _leve, sizeMoveCount, _headvalue);                         leveMoveInfoMap.put(_leve+"",sizeMoveCount+maxCurrentLeveMegreCell);                         //_temDownMovePonit= 0;                                                                                                                                                           DataModel dm =newDataModel();                         dm.setId(_id);                         dm.setPid(_pid);                         dm.setHeadvalue(_headvalue);                         dm.setMax(max);                         dm.setRs(rs);;                         dm.setPs(ps);                         dm.setConnection(connection);                         dm.setGe(ge);                         dm.setReportId(reportId);                         dm.setLeve(_leve);                         dm.setCurrentIndex(currentIndex);                         dm.setMoveInfoMap(leveMoveInfoMap);                         dm.setLeveMoveInfoMap(leveMoveInfoMap);                         dm.setRepairMoveInfo(repairMovePoint);                                                   listResultSets.add(dm);                                                                                                   //  getDirAfter(_id, _pid, reportId, maxCurrentLeveMegreCell, connection, ps, rs);                         //break;                     //  System.out.println("leve 2ID"+_id+"Pid"+_pid+"頭名"+_headvalue+""+maxCurrentLeveMegreCell);                         }                         /**                          * 判斷該表的最終級別有幾列 說明該表的合併列爲多少                          * 全部單元格的合併最終是看當前表頭開始它的最終有多少個子表頭                          * 也就是最後一行                          */                         if(listResultSets!=null&&listResultSets.size()>0){                                                           for(inti =0;i<listResultSets.size() ; i ++){                                 DataModel dModel = listResultSets.get(i);                                 dModel.setIndex(i);                                 generAfterHeader(dModel.getId() , dModel.getPid(), dModel.getHeadvalue(),                                         dModel.getMax(),                                         dModel.getRs(),                                         dModel.getPs(),                                         dModel.getConnection(),                                         dModel.getGe(),                                         dModel.getReportId(),                                         dModel.getLeve(),                                         dModel.getCurrentIndex(),                                         dModel.getMoveInfoMap(),                                         dModel.getLeveMoveInfoMap(),                                         dModel.getRepairMoveInfo(),                                         dModel.getIndex());                                                                                                                                                                                                       }                                                                                                                                                                               }                                               }catch(SQLException e2) {                         // TODO Auto-generated catch block                         e2.printStackTrace();                     }                                   }      /**     * 生成表頭     * @param id     * @param pid     * @param headvalue     * @param max     * @param max     * @param rs     * @param ps     * @param connection     * @param ge     * @param leve     * @param currentIndex     * @param moveInfoMap     * @param leveMoveInfoMap     */     privatestaticvoidgenerHeader(intid,                                                        intpid,                                                        String headvalue,                                                        intcustomCol,                                                        intmax, ResultSet rs,                                                        PreparedStatement ps,                                                        Connection connection,                                                        GenerExcle ge,                                                        intreportId,                                                        intleve,                                                        intcurrentIndex,                                                        Map<String, Integer> moveInfoMap,                                                        Map<String, Integer> leveMoveInfoMap) {                                                           //獲取當前主表頭應該跨幾列         intmaxMoveCell = getMaxCurrentLeveMegreCell(id,reportId,pid,ps,rs,connection);         Map<String, Integer> _moveInfoMap =newHashMap<String, Integer>();         //得到該主表頭的層級         intcurrentMaxLeve  = getMaxLeve(reportId, id, connection, ps, rs);         //獲取當前主表頭應該佔幾行         intmainRowCount = max - (currentMaxLeve -1);         if(mainRowCount!=max){             getMax(id, pid, rs, ps, connection, reportId, leve, _moveInfoMap,currentMaxLeve);             if(_moveInfoMap.get("addOtherCell")!=null){             String _max = _moveInfoMap.get("addOtherCell").toString();             maxMoveCell +=Integer.parseInt(_max);             }         }         //以主表頭層級關係每開一個主表頭的位移量想當於下一個主表頭的開始量（這是個累加的過程）         maxMoveCell+=customCol;         if(leveMoveInfoMap.get("allColMove")==null){             leveMoveInfoMap.put("allColMove",maxMoveCell);         }else{             leveMoveInfoMap.put("allColMove",leveMoveInfoMap.get("allColMove")+maxMoveCell);         }         /*          * 把當前主表頭的層級關係帶進去 以便控制子表若是下沉合併時的位移量          * */         leveMoveInfoMap.put("currentMaxLeve", currentMaxLeve);         System.out.println(maxMoveCell);         //初始化每級行的位移量         for(inti =1;i<=max;i++){             if(leveMoveInfoMap.get(i+"")==null)                 leveMoveInfoMap.put(i+"",0);         }         //進行單元格合併         ge.mergeCell(leve-1,                              moveInfoMap.get("cellMove"),                              mainRowCount-1,                              moveInfoMap.get("cellMove")+maxMoveCell-1,                              leveMoveInfoMap.get(leve+""),                              moveInfoMap.get("cellMove"),                              headvalue);               moveInfoMap.put("currentIndex",moveInfoMap.get("currentIndex")+maxMoveCell);         moveInfoMap.put("cellMove",moveInfoMap.get("cellMove")+maxMoveCell);         //若是當前表應該佔幾行與最大行相同則說明該表頭沒有子表頭         if(mainRowCount == max) {             // 若是該主表頭沒有子表則全部單元格只位移1個             for(inti =1; i <= max; i++) {                 leveMoveInfoMap.put(i +"", leveMoveInfoMap.get(i +"") +1+customCol);             }             return;         }         /**          * 開始處理後繼表頭的合併工做          */         Map<String,Map<String,Integer>> repairMovePoint  =newHashMap<String,Map<String,Integer>>();         Map<String,Integer> _tem =newHashMap<String, Integer>();         _tem.put("mainRowCount", mainRowCount);         repairMovePoint.put("mainRowCount",_tem);        generAfterHeader(id,                                    pid,                                    headvalue,                                    maxMoveCell,                                    rs,                                    ps,                                    connection,                                    ge,                                    reportId,                                    leve,                                    currentIndex,                                    moveInfoMap,                                    leveMoveInfoMap,                                    repairMovePoint,0);         //當一個主表頭以級它下面的子表頭的填衝合併工做完成後記錄最大移動了多少列        //由於下一個主表頭的全部數據填衝都會心這個爲開始     for(inti=1;i<=max;i++){             leveMoveInfoMap.put(i +"", leveMoveInfoMap.get("allColMove"));     }     }       /**      * 獲取當前層級元素應該合併多少個單元格      * @param id      * @param reportId      * @param pid      * @param ps      * @param rs      * @param connection      * @return      */     privatestaticintgetMaxCurrentLeveMegreCell(intid,intreportId,intpid,             PreparedStatement ps, ResultSet rs, Connection connection) {     /*  String maxCell =                 "with tem_header(id,pid,headervalue,leve) as(\n" +                         "\n" +                         "select id ,pid, headvalue,leve from dbo.headerinfo where pid = ? and report_id = ?  and id =?\n" +                         "union all\n" +                         "select  a.id,a.pid,a.headvalue,a.leve from dbo.headerinfo a ,tem_header b\n" +                         "where a.pid = b.id\n" +                         "\n and a.report_id = ?" +                         "\n" +                         "\n" +                         ")\n" +                         "select max(aa.a) from (select count(1) a from tem_header   group by leve) aa";*/         String maxCell =                                   "with tem_header(id,pid,headervalue,leve) as(\n"+                                 "\n"+                                 "            select id ,pid, headvalue,leve from dbo.headerinfo where pid = ? and report_id = ?  and id =?\n"+                                 "            union all\n"+                                 "            select  a.id,a.pid,a.headvalue,a.leve from dbo.headerinfo a ,tem_header b\n"+                                 "            where a.pid = b.id\n"+                                 "             and a.report_id = ?\n"+                                 "\n"+                                 "\n"+                                 "            )\n"+                                 "\n"+                                 "\n"+                                 "            select top 1 aa.a  from (select count(1) a ,leve le from tem_header   group by leve) aa order by aa.le desc";             try{             ps = connection.prepareStatement(maxCell);             ps.setInt(1, pid);             ps.setInt(2,reportId);             ps.setInt(3, id);             ps.setInt(4,reportId);             ps.executeQuery();             rs = ps.getResultSet();             if(rs.next()){                 return rs.getInt(1);             }         }catch(SQLException e1) {             // TODO Auto-generated catch block             e1.printStackTrace();         }         return0;     }       /**  *  * @param id  * @param pid  * @param leve  * @param leve2  * @param rs  * @param ps  * @param connection  * @return  */ privatestaticResultSet getDirAfter(intid,                                                        intpid,                                                        intreportid,                                                        intleve,                                                        Connection connection,                                                        PreparedStatement ps,                                                        ResultSet rs) {     String sql =             "\n"+                     "with tem_header(id,pid,headervalue,leve) as(\n"+                     "\n"+                     "select id ,pid, headvalue,leve from dbo.headerinfo where pid = ? and report_id = ?\n"+                     "union all\n"+                     "select  a.id,a.pid,a.headvalue,a.leve from dbo.headerinfo a ,tem_header b\n"+                     "where a.pid = b.id\n"+                     "\n"+                     "and  a.report_id = ?"+                     "\n"+                     "\n"+                     ")\n"+                     "select * from tem_header t  where t.leve = ?";     try{         ps = connection.prepareStatement(sql,ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);         ps.setInt(1, id);         ps.setInt(2,reportid);         ps.setInt(4, leve+1);         ps.setInt(3,reportid);         ps.executeQuery();         returnps.getResultSet();     }catch(SQLException e) {         // TODO Auto-generated catch block         e.printStackTrace();     }             returnnull; }   privatestaticvoidgetMax(intid,         intpid,         ResultSet rs,         PreparedStatement ps,         Connection connection,         intreportId,         intleve,         Map<String, Integer> moveInfoMap,         intcurrentMaxLeve){                                 /**                          * 處理多級表頭的合併                          */                 //但到表頭的直接後繼表頭                 rs = getDirAfter(id,pid,reportId,leve,connection,ps,rs);                                                                                         /*try {                     if(!rs.next()&&leve!=3){                     if(moveInfoMap.get("addOtherCell")==null){                         moveInfoMap.put("addOtherCell", 0);                         moveInfoMap.put("addOtherCell", moveInfoMap.get("addOtherCell")+1);                     }                                             }                 } catch (SQLException e) {                     // TODO Auto-generated catch block                     e.printStackTrace();                 }*/             //  rs = getDirAfter(id,pid,reportId,leve,connection,ps,rs);                 //存放直接後繼的子頭集合                 List<DataModel> listResultSets =newArrayList<DataModel>();                 try{                     while(rs.next()){                     int_id= rs.getInt("id");                     int_pid = rs.getInt("pid");                     String _headvalue = rs.getString("headervalue");                     int_leve = rs.getInt("leve");                     //若是當前層級不是最深層                     //判斷該表頭有沒有直接後繼節點                     if(_leve<currentMaxLeve){                                                   ResultSet _rs = getDirAfter(_id,_pid,reportId,_leve,connection,ps,rs);                         //若是沒有直接後繼節點                         if(!_rs.next()){                                                           if(moveInfoMap.get("addOtherCell")==null){                                 moveInfoMap.put("addOtherCell",0);                                 moveInfoMap.put("addOtherCell", moveInfoMap.get("addOtherCell")+1);                             }else{                                 moveInfoMap.put("addOtherCell", moveInfoMap.get("addOtherCell")+1);                             }                                                       }                                               }                                                                                                             DataModel dm =newDataModel();                     dm.setId(_id);                     dm.setPid(_pid);                     dm.setHeadvalue(_headvalue);                                           dm.setRs(rs);;                     dm.setPs(ps);                     dm.setConnection(connection);                     dm.setReportId(reportId);                     dm.setLeve(_leve);                     dm.setMoveInfoMap(moveInfoMap);                     listResultSets.add(dm);                                                                                   //  getDirAfter(_id, _pid, reportId, maxCurrentLeveMegreCell, connection, ps, rs);                     //break;                 //  System.out.println("leve 2ID"+_id+"Pid"+_pid+"頭名"+_headvalue+""+maxCurrentLeveMegreCell);                     }                     /**                      * 判斷該表的最終級別有幾列 說明該表的合併列爲多少                      * 全部單元格的合併最終是看當前表頭開始它的最終有多少個子表頭                      * 也就是最後一行                      */                     if(listResultSets!=null&&listResultSets.size()>0){                                                   for(inti =0;i<listResultSets.size() ; i ++){                             DataModel dModel = listResultSets.get(i);                             getMax(dModel.getId() , dModel.getPid(),                                                                       dModel.getRs(),                                     dModel.getPs(),                                     dModel.getConnection(),                                     dModel.getReportId(), dModel.getLeve(),dModel.getMoveInfoMap(),                                     currentMaxLeve                                                                           );                                                                                                                                                                               }                                                                                                                                                       }                                       }catch(SQLException e2) {                     // TODO Auto-generated catch block                     e2.printStackTrace();                 }                   }     }

5. [代碼]這個是複雜表頭Excle轉Html帶格式很贊 power by 網絡上的開一個高手     

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packagecom.jingjiu.util;   importjava.io.FileInputStream; importjava.io.FileNotFoundException; importjava.io.IOException; importjava.math.BigDecimal; importjava.text.DecimalFormat; importjava.text.SimpleDateFormat; importjava.util.Date; importjava.util.Map;   importorg.apache.poi.hssf.usermodel.HSSFCell; importorg.apache.poi.hssf.usermodel.HSSFCellStyle; importorg.apache.poi.hssf.usermodel.HSSFDateUtil; importorg.apache.poi.hssf.usermodel.HSSFFont; importorg.apache.poi.hssf.usermodel.HSSFPalette; importorg.apache.poi.hssf.usermodel.HSSFRow; importorg.apache.poi.hssf.usermodel.HSSFSheet; importorg.apache.poi.hssf.usermodel.HSSFWorkbook; importorg.apache.poi.hssf.util.HSSFColor; importorg.apache.poi.hssf.util.Region; importorg.apache.poi.ss.usermodel.CellStyle; importorg.apache.poi.ss.util.CellRangeAddress;   /**  * @author like  **/ publicclassExcelShower {       /**      * SID.      */     privatestaticfinallongserialVersionUID = -8344971443770122206L;       /**      * 讀取 Excel 顯示頁面.      *      * @param properties      * @return      * @throws Exception      */       publicstaticvoidmain(String[] args) {           ExcelShower els =newExcelShower();         try{             els.read(null);         }catch(Exception e) {             // TODO Auto-generated catch block             e.printStackTrace();         }       }       publicStringBuffer read(Map properties)throwsException {         HSSFSheet sheet =null;         StringBuffer lsb =newStringBuffer();         // String excelFileName = SojaProperties.getSojaRoot() +         // "/page/readExcel/sale.xls";         String excelFileName ="e:/today.xls";         HSSFWorkbook workbook =newHSSFWorkbook(newFileInputStream(                 excelFileName));// 獲整個Excel         lsb = excleToHtml(workbook);                   returnlsb;     }       publicStringBuffer excleToHtml(HSSFWorkbook workbook) {         HSSFSheet sheet;         StringBuffer lsb =newStringBuffer();         try{                                                           for(intsheetIndex =0; sheetIndex < workbook.getNumberOfSheets(); sheetIndex++) {                 sheet = workbook.getSheetAt(sheetIndex);// 獲全部的sheet                 String sheetName = workbook.getSheetName(sheetIndex);// sheetName                 if(workbook.getSheetAt(sheetIndex) !=null) {                     sheet = workbook.getSheetAt(sheetIndex);// 得到不爲空的這個sheet                     if(sheet !=null) {                         intfirstRowNum = sheet.getFirstRowNum();// 第一行                         intlastRowNum = sheet.getLastRowNum();// 最後一行                         // 構造Table                         lsb.append("<table width=\"100%\" style=\"border:1px solid #000;border-width:1px 0 0 1px;margin:2px 0 2px 0;border-collapse:collapse;\">");                         for(introwNum = firstRowNum; rowNum <= lastRowNum; rowNum++) {                             if(sheet.getRow(rowNum) !=null) {// 若是行不爲空，                                 HSSFRow row = sheet.getRow(rowNum);                                 shortfirstCellNum = row.getFirstCellNum();// 該行的第一個單元格                                 shortlastCellNum = row.getLastCellNum();// 該行的最後一個單元格                                 intheight = (int) (row.getHeight() /15.625);// 行的高度                                 lsb.append("<tr height=\""                                         + height                                         +"\" style=\"border:1px solid #000;border-width:0 1px 1px 0;margin:2px 0 2px 0;\">");                                 for(shortcellNum = firstCellNum; cellNum <= lastCellNum; cellNum++) {// 循環該行的每個單元格                                     HSSFCell cell = row.getCell(cellNum);                                     if(cell !=null) {                                         if(cell.getCellType() == HSSFCell.CELL_TYPE_BLANK) {                                             continue;                                         }else{                                             StringBuffer tdStyle =newStringBuffer(                                                     "<td style=\"border:1px solid #000; border-width:0 1px 1px 0;margin:2px 0 2px 0; ");                                             HSSFCellStyle cellStyle = cell                                                     .getCellStyle();                                             HSSFPalette palette = workbook                                                     .getCustomPalette();// 類HSSFPalette用於求顏色的國際標準形式                                             HSSFColor hColor = palette                                                     .getColor(cellStyle                                                             .getFillForegroundColor());                                             HSSFColor hColor2 = palette                                                     .getColor(cellStyle                                                             .getFont(workbook)                                                             .getColor());                                               String bgColor = convertToStardColor(hColor);// 背景顏色                                             shortboldWeight = cellStyle                                                     .getFont(workbook)                                                     .getBoldweight();// 字體粗細                                             shortfontHeight = (short) (cellStyle                                                     .getFont(workbook)                                                     .getFontHeight() /2);// 字體大小                                             String fontColor = convertToStardColor(hColor2);// 字體顏色                                             if(bgColor !=null                                                     && !"".equals(bgColor                                                             .trim())) {                                                 tdStyle.append(" background-color:"                                                         + bgColor +"; ");                                             }                                             if(fontColor !=null                                                     && !"".equals(fontColor                                                             .trim())) {                                                 tdStyle.append(" color:"                                                         + fontColor +"; ");                                             }                                             tdStyle.append(" font-weight:"                                                     + boldWeight +"; ");                                             tdStyle.append(" font-size: "                                                     + fontHeight +"%;");                                             lsb.append(tdStyle +"\"");                                               intwidth = (int) (sheet                                                     .getColumnWidth(cellNum) /35.7);//                                             intcellReginCol = getMergerCellRegionCol(                                                     sheet, rowNum, cellNum);// 合併的列（solspan）                                             intcellReginRow = getMergerCellRegionRow(                                                     sheet, rowNum, cellNum);// 合併的行（rowspan）                                             String align = convertAlignToHtml(cellStyle                                                     .getAlignment());//                                             String vAlign = convertVerticalAlignToHtml(cellStyle                                                     .getVerticalAlignment());                                               lsb.append(" align=\""+ align                                                     +"\" valign=\""+ vAlign                                                     +"\" width=\""+ width                                                     +"\" ");                                             lsb.append(" colspan=\""                                                     + cellReginCol                                                     +"\" rowspan=\""                                                     + cellReginRow +"\"");                                             lsb.append(">"+ getCellValue(cell)                                                     +"</td>");                                         }                                     }                                 }                                 lsb.append("</tr>");                             }                         }                     }                 }             }         }catch(FileNotFoundException e) {           }catch(IOException e) {           }         lsb.append("</table>");         returnlsb;     }       /**      * 取得單元格的值      *      * @param cell      * @return      * @throws IOException      */     privatestaticObject getCellValue(HSSFCell cell)throwsIOException {         Object value ="";         if(cell.getCellType() == HSSFCell.CELL_TYPE_STRING) {             value = cell.getRichStringCellValue().toString();         }elseif(cell.getCellType() == HSSFCell.CELL_TYPE_NUMERIC) {             if(HSSFDateUtil.isCellDateFormatted(cell)) {                 Date date = cell.getDateCellValue();                 SimpleDateFormat sdf =newSimpleDateFormat("yyyy-MM-dd");                 value = sdf.format(date);             }else{                 doublevalue_temp = (double) cell.getNumericCellValue();                 BigDecimal bd =newBigDecimal(value_temp);                 BigDecimal bd1 = bd.setScale(3, bd.ROUND_HALF_UP);                 value = bd1.doubleValue();                   /*                  * DecimalFormat format = new DecimalFormat("#0.###"); value =                  * format.format(cell.getNumericCellValue());                  */             }         }         if(cell.getCellType() == HSSFCell.CELL_TYPE_BLANK) {             value ="";         }         returnvalue;     }       /**      * 判斷單元格在不在合併單元格範圍內，若是是，獲取其合併的列數。      *      * @param sheet      *            工做表      * @param cellRow      *            被判斷的單元格的行號      * @param cellCol      *            被判斷的單元格的列號      * @return      * @throws IOException      */     privatestaticintgetMergerCellRegionCol(HSSFSheet sheet,intcellRow,             intcellCol)throwsIOException {         intretVal =0;         intsheetMergerCount = sheet.getNumMergedRegions();         for(inti =0; i < sheetMergerCount; i++) {             CellRangeAddress cra = (CellRangeAddress) sheet.getMergedRegion(i);             intfirstRow = cra.getFirstRow();// 合併單元格CELL起始行             intfirstCol = cra.getFirstColumn();// 合併單元格CELL起始列             intlastRow = cra.getLastRow();// 合併單元格CELL結束行             intlastCol = cra.getLastColumn();// 合併單元格CELL結束列             if(cellRow >= firstRow && cellRow <= lastRow) {// 判斷該單元格是不是在合併單元格中                 if(cellCol >= firstCol && cellCol <= lastCol) {                     retVal = lastCol - firstCol +1;// 獲得合併的列數                     break;                 }             }         }         returnretVal;     }       /**      * 判斷單元格是不是合併的單格，若是是，獲取其合併的行數。      *      * @param sheet      *            表單      * @param cellRow      *            被判斷的單元格的行號      * @param cellCol      *            被判斷的單元格的列號      * @return      * @throws IOException      */     privatestaticintgetMergerCellRegionRow(HSSFSheet sheet,intcellRow,             intcellCol)throwsIOException {         intretVal =0;         intsheetMergerCount = sheet.getNumMergedRegions();         for(inti =0; i < sheetMergerCount; i++) {             CellRangeAddress cra = (CellRangeAddress) sheet.getMergedRegion(i);             intfirstRow = cra.getFirstRow();// 合併單元格CELL起始行             intfirstCol = cra.getFirstColumn();// 合併單元格CELL起始列             intlastRow = cra.getLastRow();// 合併單元格CELL結束行             intlastCol = cra.getLastColumn();// 合併單元格CELL結束列             if(cellRow >= firstRow && cellRow <= lastRow) {// 判斷該單元格是不是在合併單元格中                 if(cellCol >= firstCol && cellCol <= lastCol) {                     retVal = lastRow - firstRow +1;// 獲得合併的行數                     break;                 }             }         }         returnretVal;     }       /**      * 單元格背景色轉換      *      * @param hc      * @return      */     privateString convertToStardColor(HSSFColor hc) {         StringBuffer sb =newStringBuffer("");         if(hc !=null) {             inta = HSSFColor.AUTOMATIC.index;             intb = hc.getIndex();             if(a == b) {                 returnnull;             }             sb.append("#");             for(inti =0; i < hc.getTriplet().length; i++) {                 String str;                 String str_tmp = Integer.toHexString(hc.getTriplet()[i]);                 if(str_tmp !=null&& str_tmp.length() <2) {                     str ="0"+ str_tmp;                 }else{                     str = str_tmp;                 }                 sb.append(str);             }         }         returnsb.toString();     }       /**      * 單元格小平對齊      *      * @param alignment      * @return      */     privateString convertAlignToHtml(shortalignment) {         String align ="left";         switch(alignment) {         caseHSSFCellStyle.ALIGN_LEFT:             align ="left";             break;         caseHSSFCellStyle.ALIGN_CENTER:             align ="center";             break;         caseHSSFCellStyle.ALIGN_RIGHT:             align ="right";             break;         default:             break;         }         returnalign;     }       /**      * 單元格垂直對齊      *      * @param verticalAlignment      * @return      */     privateString convertVerticalAlignToHtml(shortverticalAlignment) {         String valign ="middle";         switch(verticalAlignment) {         caseHSSFCellStyle.VERTICAL_BOTTOM:             valign ="bottom";             break;         caseHSSFCellStyle.VERTICAL_CENTER:             valign ="center";             break;         caseHSSFCellStyle.VERTICAL_TOP:             valign ="top";             break;         default:             break;         }         returnvalign;     }   }