ExtJS实现Excel导出.doc

ExtJS实现Excel导出ExtJS是一种基于客户端开发的AJAX应用，是一个与后台技术无关的前台ajax框架。由于项目需求，我们需要实现Excel的导出功能，前台界面是用ExtJS实现。如何实现呢？1 使用POI组件实现excel导出功能/获取问题列表List targetStockList = suggestionService.getSuggestionList(map); /创建一个新的ExcelHSSFWorkbook workBook = new HSSFWorkbook();/创建sheet页HSSFSheet sheet = workBook.createSheet();/sheet页名称workBook.setSheetName(0, targetStockList);/创建header页HSSFHeader header = sheet.getHeader();/设置标题居中header.setCenter(标题);/设置第一行为HeaderHSSFRow row = sheet.createRow(0);HSSFCell cell0 = row.createCell(Short.valueOf(0);HSSFCell cell1 = row.createCell(Short.valueOf(1);HSSFCell cell2 = row.createCell(Short.valueOf(2); / 设置字符集cell0.setEncoding(HSSFCell.ENCODING_UTF_16);cell1.setEncoding(HSSFCell.ENCODING_UTF_16);cell2.setEncoding(HSSFCell.ENCODING_UTF_16);cell0.setCellValue(问题标题);cell1.setCellValue(问题描述);cell2.setCellValue(反馈时间);if(targetStockList != null & !targetStockList.isEmpty() for(int i = 0; i targetStockList.size(); i+) Suggestion targetStock = targetStockList.get(i);row = sheet.createRow(i + 1);cell0 = row.createCell(Short.valueOf(0);cell1 = row.createCell(Short.valueOf(1);cell2 = row.createCell(Short.valueOf(2);/ 设置字符集cell0.setEncoding(HSSFCell.ENCODING_UTF_16);cell1.setEncoding(HSSFCell.ENCODING_UTF_16);cell2.setEncoding(HSSFCell.ENCODING_UTF_16);cell0.setCellValue(targetStock.getType();cell1.setCellValue(targetStock.getContent();cell2.setCellValue(targetStock.getPublishTime(); sheet.setColumnWidth(short) 0, (short) 4000);sheet.setColumnWidth(short) 1, (short) 4000);sheet.setColumnWidth(short) 2, (short) 4000);/通过Response把数据以Excel格式保存response.reset();response.setContentType(application/msexcel;charset=UTF-8);try response.addHeader(Content-Disposition, attachment;filename=+ new String(用户意见信息表 + .xls).getBytes(GBK),ISO8859_1) + );OutputStream out = response.getOutputStream();workBook.write(out);out.flush();out.close(); catch (Exception e) e.printStackTrace();return null;2.ExtJS调用此函数，实现Excel的导出我们知道在界面上通过一个按钮实现Excel的导出，ExtJS的按钮一般都是通过Ext.Ajax.request的异步请求实现数据提交的。但是在这里我们不能使用异步调用，我们需要在直接提示给用户是否保存或打开此文档。如何实现呢？其实很简单，我们如果了解了ExtJS就是Javascript开发的，我们就能够很容易实现此功能了。我们在按钮的触发事件中写入此段代码就能实现Excel的函数调用了。/ 初始化 Excel导出 的按钮var exportExcel = Ext.get(exportExcel);exportExcel.on(click, exportButtonCli