1.添加辅助类
public class Import {
public static HSSFWorkbook getHSSFWorkbook(String sheetName,String []title,String [][]values, HSSFWorkbook wb){
// 第一步,创建一个webbook,对应一个Excel文件
if(wb == null){
wb = new HSSFWorkbook();
}
// 第二步,在webbook中添加一个sheet,对应Excel文件中的sheet
HSSFSheet sheet = wb.createSheet(sheetName);
// 第三步,在sheet中添加表头第0行,注意老版本poi对Excel的行数列数有限制short
HSSFRow row = sheet.createRow(0);
// 第四步,创建单元格,并设置值表头 设置表头居中
HSSFCellStyle style = wb.createCellStyle();
style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 创建一个居中格式
HSSFCell cell = null;
//创建标题
for(int i=0;i<title.length;i++){
cell = row.createCell(i);
cell.setCellValue(title[i]);
cell.setCellStyle(style);
}
//创建内容
for(int i=0;i<values.length;i++){
row = sheet.createRow(i + 1);
for(int j=0;j<values[i].length;j++){
row.createCell(j).setCellValue(values[i][j]);
}
}
return wb;
}
}
/**************************************************************************/
调用以及具体实现
@RequestMapping(value = "/excel")
@ResponseBody
public void exportFeedBack(HttpServletResponse response){
String fileName = "商品信息"+System.currentTimeMillis()+".xls";//excel的名称
String sheetName = "商品信息";//sheet名称
String []title = new String[]{"商品ID","商品名称","价格","库存","描述"};
List<Goods> list =goodsService.getList();
String [][]values = new String[list.size()][];
for(int i=0;i<list.size();i++){
values[i] = new String[title.length];
Goods obj = list.get(i);
values[i][0] = obj.getGid()+"";
values[i][1] = obj.getGname()+"";
values[i][2] = obj.getPrice()+"";
values[i][3] = obj.getKucun()+"";
values[i][4] = obj.getGdesc()+"";
}
HSSFWorkbook wb = Import.getHSSFWorkbook(sheetName, title, values, null);
//将文件存到指定位置
try {
this.setResponseHeader(response, fileName);
OutputStream os = response.getOutputStream();
wb.write(os);
os.flush();
os.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public void setResponseHeader(HttpServletResponse response, String fileName) {
try {
fileName = new String(fileName.getBytes(),"ISO8859-1");
response.setContentType("application/octet-stream;charset=ISO8859-1");
response.setHeader("Content-Disposition", "attachment;filename="+ fileName);
response.addHeader("Pargam", "no-cache");
response.addHeader("Cache-Control", "no-cache");
} catch (Exception ex) {
ex.printStackTrace();
}
}
注:只支持.xls格式的,07版的.xlsx无法打开!
jsp页面编写:<input type="button" onclick="importExcel();" value="导出excel">
<script type="text/javascript" src="<%=request.getContextPath() %>/js/jquery-1.11.3.js"></script>
<script type="text/javascript">
function importExcel(){
window.location.href="<%=request.getContextPath()%>/goods/excel";
}
</script>
导出excel
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转载自ear.iteye.com/blog/2363533
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