Version: Next

POI

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi</artifactId>
    <version>3.6</version>
</dependency>

工具类

public class ExcelUtil {

    /**
     * 导出Excel
     * 
     * @param sheetName
     *            sheet名称
     * @param title
     *            标题
     * @param values
     *            内容
     * @param wb
     *            HSSFWorkbook对象
     * @return
     */
    public static HSSFWorkbook getHSSFWorkbook(String sheetName, String[] title, String[][] values, HSSFWorkbook wb) {

        // 第一步，创建一个HSSFWorkbook，对应一个Excel文件
        if (wb == null) {
            wb = new HSSFWorkbook();
        }

        // 第二步，在workbook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
        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

        // 声明列对象
        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++) {
                // 将内容按顺序赋给对应的列对象
                row.createCell(j).setCellValue(values[i][j]);
            }
        }
        return wb;
    }
}

Controller

/**
     * 导出报表
     * 
     * @return
     */
@RequestMapping(value = "/getMioExcel")
@ResponseBody
public void export(HttpServletRequest request, HttpServletResponse response) throws Exception {
    String cardNumber = request.getParameter("searchCardNumber");
    // 获取数据
    List<WebServiceDto> list = (List<WebServiceDto>) webServiceMio.queryByCardNumber(cardNumber);
    // excel标题
    String[] title = { "姓名", "证件类型", "证件号码", "个人唯一识别码", "应付标志", "应付金额", "应付日期", "实付日期", "银行账号", "银行代码", "账户所有人名称" };
    // excel文件名
    String fileName = "实付信息表" + System.currentTimeMillis() + ".xls";
    // sheet名
    String sheetName = "实付信息表";
    // 内容
    String[][] content = new String[list.size()][];

    for (int i = 0; i < list.size(); i++) {
        content[i] = new String[title.length];
        WebServiceMioDto mioDto = (WebServiceMioDto) list.get(i);
        content[i][0] = mioDto.getName();
        content[i][1] = mioDto.getCredentialType();
        content[i][2] = mioDto.getCredentialNum();
        content[i][3] = mioDto.getPersonGUID();
        content[i][4] = mioDto.getMioFlag();
        content[i][5] = mioDto.getMioAmnt() + "";
        content[i][6] = mioDto.getPlnmioDate();
        content[i][7] = mioDto.getMioDate();
        content[i][8] = mioDto.getBankAccNo();
        content[i][9] = mioDto.getBankCode();
        content[i][10] = mioDto.getAccCustName();
    }
    // 创建HSSFWorkbook
    HSSFWorkbook wb = ExcelUtil.getHSSFWorkbook(sheetName, title, content, null);

    // 响应到客户端
    try (OutputStream os = response.getOutputStream()) {
        this.setResponseHeader(response, fileName);
        wb.write(os);
        os.flush();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

// 发送响应流方法
public void setResponseHeader(HttpServletResponse response, String fileName) {
    try {
        try {
            fileName = new String(fileName.getBytes(), "ISO8859-1");
            //              fileName = new String(fileName.getBytes(), "UTF-8");
        } catch (UnsupportedEncodingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        response.setContentType("application/octet-stream;charset=ISO8859-1");
        //          response.setContentType("application/octet-stream;charset=UTF-8");
        response.setHeader("Content-Disposition", "attachment;filename=" + fileName.trim());
        response.addHeader("Pargam", "no-cache");
        response.addHeader("Cache-Control", "no-cache");
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}

前端

不能用Ajax请求，因为Ajax的返回类型不支持文件流，响应的文件会被解析为一堆乱码

$("#exportExcel").click(function () { // id选择器选择导出按钮
    // id选择器选择input框
    var searchCardNumber = $("#aac002").val();

    // 请求发送到后端
    window.location.href="/webservice/getMioExcel?searchCardNumber="+searchCardNumber;
})

POI#

工具类#

Controller#

前端#

POI

工具类

Controller

前端