Java浏览器下载文件为excel（springMVC方式）

 action中的方法 　　/** * Excel文件下载处理 * @return
      */ @RequestMapping("/downloanExcel") public ModelAndView downloanExcel(){ List<AuContract> list = new ArrayList<AuContract>(); list= service.findAuContractList();//获得数据库所有的合同集合
            Map<String,List<AuContract>> map = new HashMap<String, List<AuContract>>(); map.put("infoList", list); ExcelView ve = new ExcelView(); return new ModelAndView(ve,map); } excel操作工具类 ExcelView package com.ekyb.common.auContract.action; import java.io.OutputStream; import java.text.SimpleDateFormat; import java.util.List; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.poi.hssf.usermodel.HSSFCellStyle; import org.apache.poi.hssf.usermodel.HSSFFont; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.hssf.util.HSSFColor; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.Row; import org.apache.poi.ss.usermodel.Sheet; import org.springframework.web.servlet.view.document.AbstractExcelView; import com.ekyb.common.auContract.entity.AuContract; import com.ekyb.common.util.CharEncodingEdit; /** * 下载Excel视图 * * @author gx */
public class ExcelView extends AbstractExcelView { @SuppressWarnings("static-access") protected void buildExcelDocument(Map<String, Object> model, HSSFWorkbook workbook, HttpServletRequest request, HttpServletResponse response) throws Exception { @SuppressWarnings("unchecked") List<AuContract> list = (List<AuContract>) model.get("infoList"); HSSFFont font= workbook.createFont(); font.setFontHeightInPoints((short)12);            //设置字体的大小
        font.setFontName("微软雅黑");                        //设置字体的样式，如：宋体、微软雅黑等
        font.setItalic(false);                            //斜体true为斜体
        font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);    //对文中进行加粗
        font.setColor(HSSFColor.PINK.index);            //设置字体的颜色
        HSSFCellStyle style = workbook.createCellStyle(); style.setFont(font); if (list != null && list.size() != 0) { int length = list.size(); Sheet sheet = workbook.createSheet(); // 第一行文字说明
            Row row = sheet.createRow(0); Cell cell = row.createCell(0, Cell.CELL_TYPE_STRING); cell.setCellStyle(style); cell.setCellValue("合同名称"); cell = row.createCell(1, Cell.CELL_TYPE_STRING); cell.setCellStyle(style); cell.setCellValue("合同单位"); cell = row.createCell(2, Cell.CELL_TYPE_STRING); cell.setCellStyle(style); cell.setCellValue("合同登记时间"); cell = row.createCell(3, Cell.CELL_TYPE_STRING); cell.setCellStyle(style); cell.setCellValue("合同金额"); cell = row.createCell(4, Cell.CELL_TYPE_STRING); cell.setCellStyle(style); cell.setCellValue("履行方式"); cell = row.createCell(5, Cell.CELL_TYPE_STRING); cell.setCellStyle(style); cell.setCellValue("合同类型"); cell = row.createCell(6, Cell.CELL_TYPE_STRING); cell.setCellStyle(style); cell.setCellValue("开始时间"); cell = row.createCell(7, Cell.CELL_TYPE_STRING); cell.setCellStyle(style); cell.setCellValue("结束时间"); cell = row.createCell(8, Cell.CELL_TYPE_STRING); cell.setCellStyle(style); cell.setCellValue("备注"); // 下面是具体内容
            for (int i = 0; i < length; i++) { sheet.setColumnWidth((short) i, (short) (35.7 * 100)); row = sheet.createRow(i + 1); // 合同名称
                cell = row.createCell(0, cell.CELL_TYPE_STRING); cell.setCellValue(list.get(i).getName()); // 合同单位
                cell = row.createCell(1, cell.CELL_TYPE_STRING); cell.setCellValue(list.get(i).getUnit()); // 合同登记时间
                cell = row.createCell(2, cell.CELL_TYPE_STRING); cell.setCellValue(new SimpleDateFormat("yyyy-mm-dd").format(list.get(i).getReg_time())); // 合同金额
                cell = row.createCell(3, cell.CELL_TYPE_STRING); //把float对象转换为String对象
                float con_money=list.get(i).getCon_money(); String str =String.valueOf(con_money); cell.setCellValue(str); // 合同履行方式
                cell = row.createCell(4, cell.CELL_TYPE_STRING); cell.setCellValue(list.get(i).getPerform_style()); // 合同类型
                cell = row.createCell(5, cell.CELL_TYPE_STRING); cell.setCellValue(list.get(i).getCon_type()); // 开始时间
                cell = row.createCell(6, cell.CELL_TYPE_STRING); cell.setCellValue(new SimpleDateFormat("yyyy-mm-dd").format(list.get(i).getCon_start_time())); // 结束时间
                cell = row.createCell(7, cell.CELL_TYPE_STRING); cell.setCellValue(new SimpleDateFormat("yyyy-mm-dd").format(list.get(i).getCon_end_time())); // 备注
                cell = row.createCell(8, cell.CELL_TYPE_STRING); cell.setCellValue(list.get(i).getRemark()); } //web浏览通过MIME类型判断文件是excel类型
            response.setContentType("application/vnd.ms-excel;charset=utf-8"); response.setCharacterEncoding("utf-8"); // 对文件名进行处理。防止文件名乱码
            String fileName = CharEncodingEdit.processFileName(request, "合同.xls"); // Content-disposition属性设置成以附件方式进行下载
            response.setHeader("Content-disposition", "attachment;filename=" + fileName); OutputStream os = response.getOutputStream(); workbook.write(os); os.flush(); os.close(); } } } jsp页面代码用的是jQueryUI <a href="<%=basePath%>/auContract/downloanExcel" class="easyui-linkbutton"data-options="plain:'true',iconCls:'icon-down'">下载Excel</a>

//可以直接通过a标签的href直接连接到action中的url映射地址