JAVA导出Excel（支持多sheet）
一、批量导出：
/***
* @Title: expExcel
* @Description: 批量导出客户信息
* @param @param params
* @param @param request
* @param @param response
* @param @throws Exception
* @return void
* @throws
*/
@RequestMapping("expExcel")
public void expExcel(QueryCustomParam params,HttpServletRequest request,HttpServletResponse response) throws Exception{
User u = getUser(request.getSession());//SessionUtils.getUser(request.getSession());
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd hh:mm");
//获取网站部署路径(通过ServletContext对象)，用于确定下载文件位置，从而实现下载
String path = request.getServletContext().getRealPath("/");
List<CustomResp> list = null;
List<ContactsResp> list2 = null;
String fileName = "我的客户导出";
String url = path + "download\\" + fileName + ".xls";
params.setEmpIds(String.valueOf(u.getEmpId()));
QueryContactsParam params2 = new QueryContactsParam();
params2.setEmpId(Long.valueOf(u.getEmpId()));
params2.setCorpId(Long.valueOf(u.getCorpId()));
params2.setFlag("4");
try {
list = customService.selectMyCustom(params); //我的客户
list2 = contactsService.selectContactsList(params2); //查询我的客户包含的所有联系人信息
//数据
List<String[]> dataset = new ArrayList<String[]>();
for (int i = 0; i < list.size(); i++) {
String[] arr = new String[16];
arr[0] = list.get(i).getName()==null ? "" : list.get(i).getName().toString();
arr[1] = list.get(i).getShortName()==null ? "" : list.get(i).getShortName().toString();
arr[2] = list.get(i).getNumber()==null ? "" : list.get(i).getNumber().toString();
arr[3] = list.get(i).getAddress()==null ? "" : list.get(i).getAddress().toString();
arr[4] = list.get(i).getUrl()==null ? "" : list.get(i).getUrl().toString();
arr[5] = list.get(i).getDescription()==null ? "" : list.get(i).getDescription().toString();
arr[6] = list.get(i).getHighseasName()==null ? "" : list.get(i).getHighseasName().toString();
arr[7] = list.get(i).getHighseasDate()==null ? "" : sdf2.format(list.get(i).getHighseasDate());
arr[8] = list.get(i).getEmpName()==null ? "" : list.get(i).getEmpName().toString();
arr[9] = list.get(i).getOrganName()==null ? "" : list.get(i).getOrganName().toString();
arr[10] = ""; //领取日期 暂无数据
arr[11] = list.get(i).getExpireDate()==null ? "" : sdf2.format(list.get(i).getExpireDate());
arr[12] = "4"; //联系人数量
arr[13] = list.get(i).getCreateDate()==null ? "" : sdf2.format(list.get(i).getCreateDate());
arr[14] = list.get(i).getCustomStatusName()==null ? "" : list.get(i).getCustomStatusName().toString();
arr[15] = list.get(i).getCustomLevelName()==null ? "" : list.get(i).getCustomLevelName().toString();
dataset.add(arr);
}
//数据
List<String[]> dataset2 = new ArrayList<String[]>();
for (int i = 0; i < list2.size(); i++) {
String[] arr2 = new String[16];
arr2[0] = list2.get(i).getName()==null ? "" : list2.get(i).getName().toString();
arr2[1] = list2.get(i).getSex()==null ? "" : getSex(list2.get(i).getSex());
arr2[2] = list2.get(i).getBirthday()==null ? "" : sdf.format(list2.get(i).getBirthday());
arr2[3] = "";
arr2[4] = list2.get(i).getOrganName()==null ? "" : list2.get(i).getOrganName().toString();
arr2[5] = list2.get(i).getPosition()==null ? "" : list2.get(i).getPosition().toString();
arr2[6] = list2.get(i).getCompany()==null ? "" : list2.get(i).getCompany().toString();
arr2[7] = list2.get(i).getAddress()==null ? "" : list2.get(i).getAddress().toString();
arr2[8] = list2.get(i).getUrl()==null ? "" : list2.get(i).getUrl().toString();
arr2[9] = list2.get(i).getInterest()==null ? "" : list2.get(i).getInterest().toString();
arr2[10] = list2.get(i).getRemark()==null ? "" : list2.get(i).getRemark().toString();
arr2[11] = list2.get(i).getCreateDate()==null ? "" : sdf2.format(list2.get(i).getCreateDate());
arr2[12] = list2.get(i).getCustomName()==null? "" : list2.get(i).getCustomName();
arr2[13] = list2.get(i).getEmpName()==null? "" : list2.get(i).getEmpName();
arr2[14] = list2.get(i).getContactsRoleName()==null? "" : list2.get(i).getContactsRoleName();
arr2[15] = list2.get(i).getContactsRelationName()==null? "" : list2.get(i).getContactsRelationName();
dataset2.add(arr2);
}
//表头
String[] handers1 = {"客户全称","客户简称","客户编号","地址","网址","介绍","公海名称","加入公海时间","跟进人","跟进人部门","领取日期","到期日期","联系人数量","创建日期","客户状态","客户分级" };
String[] handers2 = {"姓名","性别","生日","手机","部门","职务","公司","公司地址","公司网站","兴趣爱好","备注","创建日期","客户简称","归属人","角色关系","亲密程度" };
//对象
ExcelExp e1 = new ExcelExp("我的客户", handers1, dataset);
ExcelExp e2 = new ExcelExp("客户联系人", handers2, dataset2);
List<ExcelExp> mysheet = new ArrayList<ExcelExp>();
mysheet.add(e1);
mysheet.add(e2);
ExcelExportUtil.exportManySheetExcel(url, mysheet); //生成sheet
ExcelExportUtil.getExcel(url, fileName, response); //下载sheet
} catch (IOException e) {
e.printStackTrace();
}
}
Excel对象：
public class ExcelExp { private String fileName;// sheet的名称
private String[] handers;// sheet里的标题
private List<String[]> dataset;// sheet里的数据集
public ExcelExp(String fileName, String[] handers, List<String[]> dataset) {
this.fileName = fileName;
this.handers = handers;
this.dataset = dataset;
}
//getter、setter方法
}
生成Excel：
/***
* @Title: exportManySheetExcel
* @Description: 可生成单个、多个sheet
* @param @param file 导出文件路径
* @param @param mysheets
* @return void
* @throws
*/
public static void exportManySheetExcel(String file, List<ExcelExp> mysheets){
HSSFWorkbook wb = new HSSFWorkbook();//创建工作薄
List<ExcelExp> sheets = mysheets;
//表头样式
HSSFCellStyle style = wb.createCellStyle();
style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 创建一个居中格式
//字体样式
HSSFFont fontStyle = wb.createFont();
fontStyle.setFontName("微软雅黑");
fontStyle.setFontHeightInPoints((short)12);
fontStyle.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
style.setFont(fontStyle);
for(ExcelExp excel: sheets){
//新建一个sheet
HSSFSheet sheet = wb.createSheet(excel.getFileName());//获取该sheet名称
String[] handers = excel.getHanders();//获取sheet的标题名
HSSFRow rowFirst = sheet.createRow(0);//第一个sheet的第一行为标题
//写标题
for(int i=0;i<handers.length;i++){
//获取第一行的每个单元格
HSSFCell cell = rowFirst.createCell(i);
//往单元格里写数据
cell.setCellValue(handers[i]);
cell.setCellStyle(style); //加样式
sheet.setColumnWidth(i, 4000); //设置每列的列宽
}
//写数据集
List<String[]> dataset = excel.getDataset();
for(int i=0;i<dataset.size();i++){
String[] data = dataset.get(i);//获取该对象
//创建数据行
HSSFRow row = sheet.createRow(i+1);
for(int j=0;j<data.length;j++){
//设置对应单元格的值
row.createCell(j).setCellValue(data[j]);
}
}
}
// 写文件
try {
FileOutputStream out = new FileOutputStream(new File(file));
out.flush();
wb.write(out);
out.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
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