java 导mysql数据为表格

jar 包准备

<dependency>
  <groupId>org.apache.poi</groupId>
  <artifactId>poi</artifactId>
  <version>3.17</version>
</dependency>

后端

    @Override
    public List<Orders> selectList(Map<String,String> params) {

        SqlSession sqlSession = sqlSessionFactory.openSession(true);

        List<Orders> list = sqlSession.selectList("com.xwhbank.cn.config.mybatis.namespace.ordersMapper.selectList", params);

        return  list;

    }
  <select id="selectList" parameterType="java.util.Map" resultType="orders">
    select * from orders where the_super_id = #{the_super_id} and state = '2' and order_time &gt;= #{daochu01} and order_time &lt;= #{daochu02};
  </select>
List<Orders> list = ordersService.selectList(params);

Workbook workbook = new HSSFWorkbook();
Sheet sheet = workbook.createSheet("stuDB");//stuDB 改为什么都行
Row row = sheet.createRow((short)0);//0 Row 此行设置表格的头部
Cell cell = null;
cell = row.createCell((short)0);
cell.setCellValue("tenant_order_id");//表格某一列头部的名字
cell = row.createCell((short)1);
cell.setCellValue("money");
cell = row.createCell((short)2);
cell.setCellValue("pay_way");
cell = row.createCell((short)3);
cell.setCellValue("order_time");
cell = row.createCell((short)4);
cell.setCellValue("schlep");

int i=1;
for (Orders o:list) {
    row = sheet.createRow(i);
    cell = row.createCell(0);
    cell.setCellValue(o.getTenant_order_no());
    cell = row.createCell(1);
    cell.setCellValue(o.getMoney_amount());
    cell = row.createCell(2);
    cell.setCellValue(o.getPay_way());
    cell = row.createCell(3);
    cell.setCellValue(o.getOrder_time());
    cell = row.createCell(4);
    cell.setCellValue(o.getSchlep());
    i++;
}
//HttpServletResponse  第一个头部必须设置
//第二个可以先不设置 只设置第一个头部运行后 可以确定浏览器导出的是什么文件后缀
//接上面 若有自定义命名需要 可以加上第二行 并带上确定的文件名后缀
response.setHeader("content-Type", "application/vnd.ms-excel");
//下面设置浏览器下载的文件名 包含文件后缀
response.setHeader("Content-Disposition", "attachment;filename="+the_super_id+"-"+new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").format(new Date())+".xls");
workbook.write(response.getOutputStream());
response.getOutputStream().flush();
System.out.println("Success");

前端

//#dddc 任意可点击的东西 ,#daochu01  需要带给服务器的参数
$("#dddc").on('click', function () {
            var url = "http://" + window.location.host + "/ddgl/dddc";
            $('<form method="get" action=' + url + '>' +
                '<input name="daochu01" type="text" value='+$("#daochu01").val()+'/>' +
                '<input name="daochu02" type="text" value='+$("#daochu02").val()+'/>' +
                '</form>').appendTo('body').submit().remove();
        });
//ajax请求服务器,是不能返回excel表格的(这个不确定),我们需要把请求转换为页面请求,即转换为form表单发送请求,这样就可以把数据导出为表格了

结果

5001263243584372792-2018_05_04 22_50_10.xls

参考:https://www.testwo.com/blog/7800

   https://www.cnblogs.com/yansj1997/p/4814213.html

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转载自www.cnblogs.com/LiuPan2016/p/8993073.html