javaプログラムはテキストをExcelに出力します。


  :http://zhidao.baidu.com/question/140741029.html
       -jxl.jar,   http://sourceforge.net/project/showfiles.php?group_id=79926  。
 .  Excel    
/**  Excel     
      * @param file        
      * @return
      */
      public static String readExcel(File file){
         StringBuffer sb = new StringBuffer();
         
         Workbook wb = null;
          try {
             //  Workbook(   )  
             wb=Workbook.getWorkbook(file);
          } catch (BiffException e) {
             e.printStackTrace();
          } catch (IOException e) {
             e.printStackTrace();
         }
         
         if(wb==null)
             return null;
         
         //   Workbook    ,        Sheet(   )   
         Sheet[] sheet = wb.getSheets();
         
          if(sheet!=null&&sheet.length>0){
             //          
              for(int i=0;i<sheet.length;i++){
                 //          
                 int rowNum = sheet[i].getRows();
                  for(int j=0;j<rowNum;j++){
                     //           
                     Cell[] cells = sheet[i].getRow(j);
                      if(cells!=null&&cells.length>0){
                         //          
                          for(int k=0;k<cells.length;k++){
                             //         
                             String cellValue = cells[k].getContents();
                             sb.append(cellValue+" ");
                         }
                     }
                     sb.append(" ");
                 }
                 sb.append(" ");
             }
         }
         //      ,    
         wb.close();
         return sb.toString();
     }
 .  Excel  
        ,        ,       ,    jxl api,            :http://www.ibm.com/developerworks/cn/java/l-javaExcel/?ca=j-t10
 /**    Excel  
      * @param fileName      Excel   
      */
      public static void writeExcel(String fileName){
         WritableWorkbook wwb = null;
          try {
             //     Workbook                 (Workbook)  
             wwb = Workbook.createWorkbook(new File(fileName));
          } catch (IOException e) {
             e.printStackTrace();
         }
          if(wwb!=null){
             //           
             //Workbook createSheet       ,          ,               
             WritableSheet ws = wwb.createSheet("sheet1", 0);
             
             //         
              for(int i=0;i<10;i++){
                  for(int j=0;j<5;j++){
                     //        , Excel ,        ,      
                     Label labelC = new Label(j, i, "   "+(i+1)+" , "+(j+1)+" ");
                      try {
                         //              
                         ws.addCell(labelC);
                      } catch (RowsExceededException e) {
                         e.printStackTrace();
                      } catch (WriteException e) {
                         e.printStackTrace();
                     }
 
                 }
             }
 
              try {
                 //         
                 wwb.write();
                 //    ,    
                 wwb.close();
              } catch (IOException e) {
                 e.printStackTrace();
              } catch (WriteException e) {
                 e.printStackTrace();
             }
         }
     } 
 .   Excel               
 /**                 
      * @param file        
      * @param keyWord         
      * @return
      */
      public static boolean searchKeyWord(File file,String keyWord){
         boolean res = false;
         
         Workbook wb = null;
          try {
             //  Workbook(   )  
             wb=Workbook.getWorkbook(file);
          } catch (BiffException e) {
             return res;
          } catch (IOException e) {
             return res;
         }
         
         if(wb==null)
             return res;
         
         //   Workbook    ,        Sheet(   )   
         Sheet[] sheet = wb.getSheets();
         
         boolean breakSheet = false;
         
          if(sheet!=null&&sheet.length>0){
             //          
              for(int i=0;i<sheet.length;i++){
                 if(breakSheet)
                     break;
                 
                 //          
                 int rowNum = sheet[i].getRows();
                 
                 boolean breakRow = false;
                 
                  for(int j=0;j<rowNum;j++){
 /**                 
      * @param file        
      * @param keyWord         
      * @return
      */
      public static boolean searchKeyWord(File file,String keyWord){
         boolean res = false;
         
         Workbook wb = null;
          try {
             //  Workbook(   )  
             wb=Workbook.getWorkbook(file);
          } catch (BiffException e) {
             return res;
          } catch (IOException e) {
             return res;
         }
         
         if(wb==null)
             return res;
         
         //   Workbook    ,        Sheet(   )   
         Sheet[] sheet = wb.getSheets();
         
         boolean breakSheet = false;
         
          if(sheet!=null&&sheet.length>0){
             //          
              for(int i=0;i<sheet.length;i++){
                 if(breakSheet)
                     break;
                 
                 //          
                 int rowNum = sheet[i].getRows();
                 
                 boolean breakRow = false;
                 
                  for(int j=0;j<rowNum;j++){
                     if(breakRow)
                         break;
                     //           
                     Cell[] cells = sheet[i].getRow(j);
                      if(cells!=null&&cells.length>0){
                         boolean breakCell = false;
                         //          
                          for(int k=0;k<cells.length;k++){
                             if(breakCell)
                                 break;
                             //         
                             String cellValue = cells[k].getContents();
                             if(cellValue==null)
                                 continue;
                              if(cellValue.contains(keyWord)){
                                 res = true;
                                 breakCell = true;
                                 breakRow = true;
                                 breakSheet = true;
                             }
                         }
                     }
                 }
             }
         }
         //      ,    
         wb.close();
         
         return res;
     }
if(breakRow)break;/ の のすべてのセルセルセルセルセルCell=sheet[i].getRow(j);if(cell!=null&cell.length>0){bollan breakCell=false;// セルを for(int k=0;k<セル.lengthk+){if(breakCell)break;// のセルの String cell Value=cels[k].gets Contents();if(cell Value==null)contine;if(cell Value.com ntains){res=true;breakCell=true;breakRow=true;break Sheet=true;}// にリソースを じてメモリを します。return ress;;
 . Excel       
          ,      :
/** Excel     
      * @param dataSheet         
      * @param col        
      * @param row        
      * @param width        
      * @param height        
      * @param imgFile         
      */
     public static void insertImg(WritableSheet dataSheet, int col, int row, int width,
              int height, File imgFile){
         WritableImage img = new WritableImage(col, row, width, height, imgFile);
         dataSheet.addImage(img);
     } 
             ,          ,           :
try {
             //       
             WritableWorkbook workbook = Workbook.createWorkbook(new File("D:/test1.xls"));
             //       
             WritableSheet imgSheet = workbook.createSheet("Images",0);
             //        
             File imgFile = new File("D:/1.png");
             //              ,         
             insertImg(imgSheet,0,1,6,6,imgFile);
             workbook.write();
             workbook.close();
          } catch (IOException e) {
             e.printStackTrace();
          } catch (WriteException e) {
             e.printStackTrace();
         }
  jxl   png     ,jpg   gif      
 .      
              , , ,    ,               
/** Excel       
      * @param dataSheet          
      * @param left
      * @param center
      * @param right
      */
      public static void setHeader(WritableSheet dataSheet,String left,String center,String right){
         HeaderFooter hf = new HeaderFooter();
         hf.getLeft().append(left);
         hf.getCentre().append(center);
         hf.getRight().append(right);
         //    
         dataSheet.getSettings().setHeader(hf);
         //    
         //dataSheet.getSettings().setFooter(hf);
     }
              :
 try {
             //       
             WritableWorkbook workbook = Workbook.createWorkbook(new File("D:/test1.xls"));
             //       
             WritableSheet dataSheet = workbook.createSheet("    ",0);
             ExcelUtils.setHeader(dataSheet, "chb", "2007-03-06", " 1 , 3 ");
             workbook.write();
             workbook.close();
          } catch (IOException e) {
             e.printStackTrace();
          } catch (WriteException e) {
             e.printStackTrace();
         }
 、       sql2Excel
            ,    ,  linux        , ssh     ,   mysql     ,              。 ,     ,    windows,       putty  EMS , ft!
      ,          ,                  Excel ,             ,  ,  ,         。
          jdbc  ,     ,      。
 Connection con;
     Statement state;
      /**     
      * @param serverIp
      * @param dataBase
      * @param userName
      * @param password
      * @throws ClassNotFoundException
      * @throws SQLException
      */
      public void init(String serverIp,String dataBase,String userName,String password) throws ClassNotFoundException, SQLException{
         Class.forName("com.mysql.jdbc.Driver");
         //     
         String url="jdbc:mysql://"+serverIp+"/"+dataBase+"?useUnicode=true&characterEncoding=GB2312";
         con=DriverManager.getConnection(url,userName,password); 
     }
      /**       
      * @param sql
      * @return
      * @throws SQLException
      */
      public ResultSet getResultSet(String sql) throws SQLException{
         state = con.createStatement();
         ResultSet res = state.executeQuery(sql);
         return res;
     }
      /**    
      * @throws SQLException
      */
      public void close() throws SQLException{
         if(con!=null)
             con.close();
         if(state!=null)
             state.close();
     }
       ResultSet        Excel  
  Excel,    jxl,         :  java  Excel  
 /**       Excel   
      * @param rs
      * @param file
      * @throws SQLException
      */
      public void writeExcel(ResultSet rs,File file) throws SQLException{
           WritableWorkbook wwb = null;
              try{
                 //     Workbook                 (Workbook)  
                 wwb = Workbook.createWorkbook(file);
              } catch (IOException e){
                 e.printStackTrace();
             }
              if(wwb!=null){
                 WritableSheet ws = wwb.createSheet("sheet1", 0);
                 int i=0;
                  while(rs.next()){
                     Label label1 = new Label(0, i, rs.getString("id"));
                     Label label2 = new Label(1, i, rs.getString("category"));
                       try {
                         ws.addCell(label1);
                         ws.addCell(label2);
                      } catch (RowsExceededException e) {
                         e.printStackTrace();
                      } catch (WriteException e) {
                         e.printStackTrace();
                     }
                     i++;
                 }    
 
                  try {
                     //         
                     wwb.write();
                     //    ,    
                     wwb.close();
                  } catch (IOException e) {
                     e.printStackTrace();
                  } catch (WriteException e){
                     e.printStackTrace();
                 }
             }
     }
 Sql2Excel se = new Sql2Excel();
          try {
             se.init("127.0.0.1","mydabase", "root", "1234");
             ResultSet rs = se.getResultSet("select id,category from xx ");
             se.writeExcel(rs, new File("/root/sql2excel.xls"));
             se.close();
          } catch (ClassNotFoundException e) {
             e.printStackTrace();
          } catch (SQLException e) {
             e.printStackTrace();
         }