• Java excel导出笔记


            //导出表格数据
                getInventoryItemData:function(){
                    var warehouse = YAHOO.util.Dom.get("warehouse").classObj.get('value').id;
                     window.location.href=PORTAL.constant.CONTEXT_PATH+"/core/wm/materialInventory/inventoryStockAction!getInventoryItemData.action?warehouse="+warehouse;
    
                },
    	/**
    	 * 查询物料盘点列表并导出
    	 * @throws Exception 
    	 */
    	public void getInventoryItemData(){
    		
    		try {
    			HttpServletRequest request = ServletActionContext.getRequest();
    			String warehouse = request.getParameter("warehouse");
    			SiteBO siteBo = this.getCurrentSite();
    			UserBO userBO = this.getSessionUser();
    			 List<Object[]> datalist;
    			datalist = inventoryStockActionService.getInventoryItemData(warehouse, siteBo, userBO);
    			List<String> rowNames=new ArrayList<String>(Arrays.asList("序号"," 物料编号 ","物料名称","工单号","批次","规格型号","单位","数量"));	
    //			List<Object[]> objList=mapToObject(datalist,rowNames);
    	        export("物料盘点列表", rowNames,datalist);
    		} catch (Exception ex) {
    			this.simpleResponse(this.getJsonText(ex));
    		}
    		
    
    	}
    
    
    	 /* 
         * 导出数据 
         */  
        public void export(String title,List<String> rowName,List<Object[]> dataList){  
        	SXSSFWorkbook workbook = new SXSSFWorkbook();                     // 创建工作簿对象 
        	 Sheet sheet = workbook.createSheet(title);                  // 创建工作表  
            try{  
                // 产生表格标题行  
            	Row rowm = sheet.createRow(0);  
            	Cell cellTiltle = rowm.createCell(0);  
                  
                //sheet样式定义【getColumnTopStyle()/getStyle()均为自定义方法 - 在下面  - 可扩展】  
                XSSFCellStyle columnTopStyle = this.getColumnTopStyle(workbook);//获取列头样式对象  
                XSSFCellStyle style = this.getStyle(workbook);                  //单元格样式对象  
                  
                sheet.addMergedRegion(new CellRangeAddress(0, 1, 0, (rowName.size()-1)));    
                cellTiltle.setCellStyle(columnTopStyle);  
                cellTiltle.setCellValue(title);  
                  
                // 定义所需列数  
                int columnNum = rowName.size();  
                Row rowRowName = sheet.createRow(2);                // 在索引2的位置创建行(最顶端的行开始的第二行)  
                  
                // 将列头设置到sheet的单元格中  
                for(int n=0;n<columnNum;n++){  
                	Cell  cellRowName = rowRowName.createCell(n);               //创建列头对应个数的单元格  
                    cellRowName.setCellType(HSSFCell.CELL_TYPE_STRING);             //设置列头单元格的数据类型  
                    HSSFRichTextString text = new HSSFRichTextString(rowName.get(n));  
                    cellRowName.setCellValue(text);                                 //设置列头单元格的值  
                    cellRowName.setCellStyle(columnTopStyle);                       //设置列头单元格样式  
                }  
                  
                //将查询出的数据设置到sheet对应的单元格中  
                for(int i=0;i<dataList.size();i++){  
                    Object[] obj=dataList.get(i);//遍历每个对象  
                    Row row = sheet.createRow(i+3);//创建所需的行数  
                    for(int j=0; j<obj.length; j++){  
                    	Cell  cell = null;   //设置单元格的数据类型  
                        if(j == 0){  
                            cell = row.createCell(j,HSSFCell.CELL_TYPE_NUMERIC);  
                            cell.setCellValue(i+1);   
                        }else{  
                            cell = row.createCell(j,HSSFCell.CELL_TYPE_STRING);  
                            cell.setCellValue(String.valueOf(obj[j]));                       //设置单元格的值  
                        }  
                        cell.setCellStyle(style);                                   //设置单元格样式  
                    }  
                }  
                if(workbook !=null){  
                    try  
                    {  
                        String fileName = "Excel-" + String.valueOf(System.currentTimeMillis()).substring(4, 13) + ".xlsx";  
                        String headStr = "attachment; filename="" + fileName + """;  
                        HttpServletResponse response = ServletActionContext.getResponse();
                        response.reset();
                        response.setContentType("APPLICATION/OCTET-STREAM");  
                        response.setHeader("Content-Disposition", headStr);  
                        OutputStream out = response.getOutputStream();  
                        workbook.write(out);  
                    }  
                    catch (IOException e)  
                    {  
                        e.printStackTrace();  
                    }  
                }  
      
            }catch(Exception e){  
                e.printStackTrace();  
            }  
        }  
        
        /*  
         * 列头单元格样式 
         */      
        public XSSFCellStyle getColumnTopStyle(SXSSFWorkbook workbook) {  
              
              // 设置字体  
              XSSFFont font = (XSSFFont) workbook.createFont();
              //设置字体大小  
              font.setFontHeightInPoints((short)11);  
              //字体加粗  
              font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);  
              //设置字体名字   
              font.setFontName("Courier New");  
              //设置样式;   
              XSSFCellStyle style = (XSSFCellStyle) workbook.createCellStyle();
              //设置底边框;   
              style.setBorderBottom(HSSFCellStyle.BORDER_THIN);  
              //设置底边框颜色;    
              style.setBottomBorderColor(HSSFColor.BLACK.index);  
              //设置左边框;     
              style.setBorderLeft(HSSFCellStyle.BORDER_THIN);  
              //设置左边框颜色;   
              style.setLeftBorderColor(HSSFColor.BLACK.index);  
              //设置右边框;   
              style.setBorderRight(HSSFCellStyle.BORDER_THIN);  
              //设置右边框颜色;   
              style.setRightBorderColor(HSSFColor.BLACK.index);  
              //设置顶边框;   
              style.setBorderTop(HSSFCellStyle.BORDER_THIN);  
              //设置顶边框颜色;    
              style.setTopBorderColor(HSSFColor.BLACK.index);  
              //在样式用应用设置的字体;    
              style.setFont(font);  
              //设置自动换行;   
              style.setWrapText(false);  
              //设置水平对齐的样式为居中对齐;    
              style.setAlignment(HSSFCellStyle.ALIGN_CENTER);  
              //设置垂直对齐的样式为居中对齐;   
              style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);  
                
              return style;  
                
        }  
          
        /*   
         * 列数据信息单元格样式 
         */    
        public XSSFCellStyle getStyle(SXSSFWorkbook workbook) {  
              // 设置字体  
        	XSSFFont font = (XSSFFont) workbook.createFont();  
              //设置字体大小  
              //font.setFontHeightInPoints((short)10);  
              //字体加粗  
              //font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);  
              //设置字体名字   
              font.setFontName("Courier New");  
              //设置样式;   
              XSSFCellStyle style = (XSSFCellStyle) workbook.createCellStyle();  
              //设置底边框;   
              style.setBorderBottom(HSSFCellStyle.BORDER_THIN);  
              //设置底边框颜色;    
              style.setBottomBorderColor(HSSFColor.BLACK.index);  
              //设置左边框;     
              style.setBorderLeft(HSSFCellStyle.BORDER_THIN);  
              //设置左边框颜色;   
              style.setLeftBorderColor(HSSFColor.BLACK.index);  
              //设置右边框;   
              style.setBorderRight(HSSFCellStyle.BORDER_THIN);  
              //设置右边框颜色;   
              style.setRightBorderColor(HSSFColor.BLACK.index);  
              //设置顶边框;   
              style.setBorderTop(HSSFCellStyle.BORDER_THIN);  
              //设置顶边框颜色;    
              style.setTopBorderColor(HSSFColor.BLACK.index);  
              //在样式用应用设置的字体;    
              style.setFont(font);  
              //设置自动换行;   
              style.setWrapText(false);  
              //设置水平对齐的样式为居中对齐;    
              style.setAlignment(HSSFCellStyle.ALIGN_CENTER);  
              //设置垂直对齐的样式为居中对齐;   
              style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);    
              return style;  
          
        }
    

      

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  • 原文地址:https://www.cnblogs.com/26JRS/p/6890244.html
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