• Spring mvc 导出table到Excel


        /**
         * 
        * @Title: exportExcel 
        * @Description: TODO(导出到excel) 
        * @param Page page
        * @return ModelAndView    返回类型 
        * @author yk
        * @throws Exception
         */
        @RequestMapping(value="/excel")
        public ModelAndView exportExcel(Page page) throws Exception{
            // 输出字符串到控制台
            logBefore(logger, Jurisdiction.getUsername()+"导出配件订单列表到excel");
            // Excel导出的数据上限为10000000 如果不设置则会只导出10条数据
            page.setShowCount(10000000);
            // 获得导出权限
            if(!Jurisdiction.buttonJurisdiction(menuUrl, "cha")){return null;}
            // 创建pd对象
            PageData pd = this.getPageData();
            // 将garage_id存入pd中
            pd.put("garage_id", Jurisdiction.getGarageID());
            // 将pd存入page对象
            page.setPd(pd);
            // 创建mv对象
            ModelAndView mv = new ModelAndView();
            // 创建Map对象,用于存入列名字与列值
            Map<String,Object> dataMap = new HashMap<String,Object>();
            // 创建titles对象,对象中的值为Excel的列名
            List<String> titles = new ArrayList<String>();
            // 向titles对象存入列名 start
            titles.add("开单日期");    //1
            titles.add("单号");    //2
            titles.add("供应商名称");    //3
            titles.add("开单类型");    //4
            titles.add("结算金额");    //5
            titles.add("经手人");    //6
            titles.add("结算方式");    //7
            titles.add("订单状态");    //8
            // 向titles对象存入列名 end
            
            // 将dataMap对象存入Excel表列名的数组
            dataMap.put("titles", titles);
            // 获取配件订单列表
            List<PageData> varOList = partsOrderFormService.findPurchaseOrderlistPage(page);
            // 创建varList对象用于存放Excel中列的值
            List<PageData> varList = new ArrayList<PageData>();
            // varList存值start
            for(int i=0;i<varOList.size();i++){
                PageData vpd = new PageData();
                vpd.put("var1", varOList.get(i).get("create_datetime").toString());        //1
                vpd.put("var2", varOList.get(i).getString("order_no"));        //2
                vpd.put("var3", varOList.get(i).getString("sup_name"));    //3
                vpd.put("var4", varOList.get(i).get("order_form_type").toString());    //4
                vpd.put("var5", varOList.get(i).get("pur_total_price").toString());    //5
                vpd.put("var6", varOList.get(i).getString("pur_handler"));    //6
                vpd.put("var7", varOList.get(i).get("account_type").toString());    //7
                vpd.put("var8", varOList.get(i).get("status_flag").toString());    //8
                varList.add(vpd);
            }
            // varList存值end
            dataMap.put("varList", varList);
            // 创建Excel工具类的 erv对象
            ObjectExcelView erv = new ObjectExcelView();
            // 创建Excel表
            mv = new ModelAndView(erv,dataMap);
            return mv;
        }

    工具类:

    package com.cd.util;
    
    import java.util.Date;
    import java.util.List;
    import java.util.Map;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    import org.apache.poi.hssf.usermodel.HSSFCell;
    import org.apache.poi.hssf.usermodel.HSSFCellStyle;
    import org.apache.poi.hssf.usermodel.HSSFFont;
    import org.apache.poi.hssf.usermodel.HSSFSheet;
    import org.apache.poi.hssf.usermodel.HSSFWorkbook;
    import org.springframework.web.servlet.view.document.AbstractExcelView;
    
    import com.cd.util.PageData;
    import com.cd.util.Tools;
    /**
    * 导入到EXCEL
    * 类名称:ObjectExcelView.java
    * @author RB
    * @version 1.0
     */
    public class ObjectExcelView extends AbstractExcelView{
    
        @Override
        protected void buildExcelDocument(Map<String, Object> model,
                HSSFWorkbook workbook, HttpServletRequest request,
                HttpServletResponse response) throws Exception {
            // TODO Auto-generated method stub
            Date date = new Date();
            String filename = Tools.date2Str(date, "yyyyMMddHHmmss");
            HSSFSheet sheet;
            HSSFCell cell;
            response.setContentType("application/octet-stream");
            response.setHeader("Content-Disposition", "attachment;filename="+filename+".xls");
            sheet = workbook.createSheet("sheet1");
            
            List<String> titles = (List<String>) model.get("titles");
            int len = titles.size();
            HSSFCellStyle headerStyle = workbook.createCellStyle(); //标题样式
            headerStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
            headerStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
            HSSFFont headerFont = workbook.createFont();    //标题字体
            headerFont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
            headerFont.setFontHeightInPoints((short)11);
            headerStyle.setFont(headerFont);
            short width = 20,height=25*20;
            sheet.setDefaultColumnWidth(width);
            for(int i=0; i<len; i++){ //设置标题
                String title = titles.get(i);
                cell = getCell(sheet, 0, i);
                cell.setCellStyle(headerStyle);
                setText(cell,title);
            }
            sheet.getRow(0).setHeight(height);
            
            HSSFCellStyle contentStyle = workbook.createCellStyle(); //内容样式
            contentStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
            List<PageData> varList = (List<PageData>) model.get("varList");
            int varCount = varList.size();
            for(int i=0; i<varCount; i++){
                PageData vpd = varList.get(i);
                for(int j=0;j<len;j++){
                    String varstr = vpd.getString("var"+(j+1)) != null ? vpd.getString("var"+(j+1)) : "";
                    cell = getCell(sheet, i+1, j);
                    cell.setCellStyle(contentStyle);
                    setText(cell,varstr);
                }
                
            }
            
        }
    
    }
      function outputEXCEL(){
              // 改变Form表单的action
              $("#Form").attr("action","partsOrderForm/excel.do").submit();
              // 提交完了之后变回之前的action
              $("#Form").attr("action","partsOrderForm/partsOrderFormList.do")
          }
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  • 原文地址:https://www.cnblogs.com/YangK-java/p/6510753.html
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