java 实体类，工具类
import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.io.PrintStream;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.commons.utils.POIUtil;
import com.commons.vo.JSONMessage;
import com.wlsq.cloudpark.service.CloudParkingEntryRecordService;
@Controller
@RequestMapping("loginrecord")
public class ExcelRecordExport {
@Resource
private CloudParkingEntryRecordService cloudParkingRecordService;
/**
* 记录导出
* @param request
* @param response
* @throws Exception
*/
@RequestMapping("revenue_managent_down_export.htm")
@ResponseBody
public JSONMessage revenueManagementDownExport(HttpServletRequest request,
HttpServletResponse response) throws Exception {
try {
JSONMessage jsonMessage = new JSONMessage();
String homeName = request.getParameter("export_home_name");//文件名
String parking_id = String.valueOf(request.getParameter("export_parking_id"));
String pay_state = request.getParameter("export_pay_state");
String start_time= request.getParameter("export_start_time");
String end_time= request.getParameter("export_end_time");
//创建表格头部
List<Map<String, Object>> headInfoList = new ArrayList<Map<String, Object>>();
Map<String, Object> itemMap = new HashMap<String, Object>();
itemMap.put("title", "停车场");
itemMap.put("columnWidth", 60);
itemMap.put("dataKey", "XH1");
headInfoList.add(itemMap);
itemMap = new HashMap<String, Object>();
itemMap.put("title", "车牌号");
itemMap.put("columnWidth", 30);
itemMap.put("dataKey", "XH2");
headInfoList.add(itemMap);
itemMap = new HashMap<String, Object>();
itemMap.put("title", "卡号");
itemMap.put("columnWidth", 40);
itemMap.put("dataKey", "XH3");
headInfoList.add(itemMap);
Map<String, Object> maps = new HashMap<String, Object>();
maps.put("pay_state", pay_state);
maps.put("start_time", start_time);
maps.put("end_time", end_time);
if(parking_id !=null&&!parking_id.equals("")){
maps.put("parking_id", parking_id);
}
List<Map<String,Object>> coc= cloudParkingRecordService.selectCloudParkEntryRecordMap(maps);
// excel 导出功能【数据填充】
List<Map<String, Object>> dataList = new ArrayList<Map<String, Object>>();
Map<String, Object> dataItem = null;
// 限制下载数量2000
if (coc.size() > 2000) {
jsonMessage.put("exportQuantity", coc.size());
return jsonMessage;
}
for (int i = 0; i < coc.size(); i++) {
dataItem = new HashMap<String, Object>();
Map<String,Object> de = coc.get(i);
dataItem.put("XH1", de.get("parking_name"));
dataItem.put("XH2", de.get("car_no"));
dataItem.put("XH3", de.get("flag_no"));
dataList.add(i, dataItem);
}
String writePath = "";
String file_name = homeName;
String path = "export/" + file_name + ".xls";
POIUtil poiUtil = new POIUtil();
// 1.创建 Workbook
HSSFWorkbook hssfWorkbook = poiUtil.getHSSFWorkbook();
// 2.创建 Sheet
HSSFSheet hssfSheet = poiUtil.getHSSFSheet(hssfWorkbook, file_name);
hssfSheet.createFreezePane(0, 1);//冻结导出excel第一行
// 3.写入 head
poiUtil.writeHeader(hssfWorkbook, hssfSheet, headInfoList);
// 4.写入内容
poiUtil.writeContent(hssfWorkbook, hssfSheet, 1, headInfoList,
dataList);
// 5.保存文件到filePath中
String realPath = request.getSession().getServletContext().getRealPath("/");
File file1 = new File(realPath+ path.substring(0, path.lastIndexOf("/")));
if (!file1.exists())
file1.mkdirs();
writePath = realPath + path;
FileOutputStream out1 = new FileOutputStream(writePath);
try {
hssfWorkbook.write(out1);
out1.close();
jsonMessage.put("exportQuantity", coc.size());
jsonMessage.put("path", path);
jsonMessage.put("file_name", file_name);
return jsonMessage;
} catch (final Exception e) {
e.printStackTrace();
new Thread() {
@Override
public void run() {
// 获取错误日志
ByteArrayOutputStream baos = new ByteArrayOutputStream();
e.printStackTrace(new PrintStream(baos));
}
}.start();
}
} catch (Exception e) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
e.printStackTrace(new PrintStream(baos));
}
return null;
}
/**
* 获取导出的excel保存到本地服务器，获取地址下载
* @throws UnsupportedEncodingException
*/
@RequestMapping("export_download.htm")
public void exportDownload(HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException {
request.setCharacterEncoding("utf-8");
FileInputStream fis = null;
BufferedInputStream bis = null;
OutputStream os = null;
try {
String path = new String(request.getParameter("path"));
String srcName = new String(request.getParameter("src"));
path = request.getSession().getServletContext().getRealPath("/" + path);
String fileName = path.substring(path.lastIndexOf("/") + 1);
String fileType = fileName.substring(fileName.lastIndexOf(".") + 1);
response.reset();// 清空buffer,设置页面不缓存
if (fileType.equals("xls") || fileType.equals("xlsx")) {
response.setCharacterEncoding("UTF-8");
response.setContentType("application/octet-stream");
// 通常解决汉字乱码方法用URLEncoder.encode(...)
String filenamedisplay = URLEncoder.encode(srcName, "UTF-8");
if ("FF".equals(getBrowser(request))) {
// 针对火狐浏览器处理方式不一样了
filenamedisplay = new String(srcName.getBytes("UTF-8"),"iso-8859-1");
}
response.setHeader("Content-Disposition","attachment;filename=" + filenamedisplay + ".xls");
}
fis = new FileInputStream(path);
bis = new BufferedInputStream(fis);
os = response.getOutputStream();
byte[] b = new byte[200];
int size = bis.read(b);
while (size > 0) {
os.write(b, 0, size);
size = bis.read(b);
}
os.flush();
os.close();
bis.close();
fis.close();
File file = new File(path);
if (file.isFile() && file.exists()) {
file.delete();
}
} catch (Exception e) {
e.printStackTrace();
// 获取错误日志
ByteArrayOutputStream baos = new ByteArrayOutputStream();
e.printStackTrace(new PrintStream(baos));
try {
os.close();
bis.close();
fis.close();
} catch (Exception ex) {
}
}
}
// 以下为服务器端判断客户端浏览器类型的方法
private String getBrowser(HttpServletRequest request) {
String UserAgent = request.getHeader("USER-AGENT").toLowerCase();
if (UserAgent != null) {
if (UserAgent.indexOf("msie") >= 0)
return "IE";
if (UserAgent.indexOf("firefox") >= 0)
return "FF";
if (UserAgent.indexOf("safari") >= 0)
return "SF";
}
return null;
}
}
package com.commons.utils;
import org.apache.poi.hssf.usermodel.*;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Calendar;
import java.util.List;
import java.util.Map;
/**
* poi 导出excel 工具类
*/
public class POIUtil {
/**
* 1.创建 workbook
* @return
*/
public HSSFWorkbook getHSSFWorkbook(){
return new HSSFWorkbook();
}
/**
* 2.创建 sheet
* @param hssfWorkbook
* @param sheetName sheet 名称
* @return
*/
public HSSFSheet getHSSFSheet(HSSFWorkbook hssfWorkbook, String sheetName){
return hssfWorkbook.createSheet(sheetName);
}
/**
* 3.写入表头信息
* @param hssfWorkbook
* @param hssfSheet
* @param headInfoList List<Map<String, Object>>
* key: title 列标题
* columnWidth 列宽
* dataKey 列对应的 dataList item key
*/
public void writeHeader(HSSFWorkbook hssfWorkbook,HSSFSheet hssfSheet ,List<Map<String, Object>> headInfoList){
HSSFCellStyle cs = hssfWorkbook.createCellStyle();
HSSFFont font = hssfWorkbook.createFont();
font.setFontHeightInPoints((short)12);
font.setBoldweight(font.BOLDWEIGHT_BOLD);
cs.setFont(font);
cs.setAlignment(cs.ALIGN_CENTER);
HSSFRow r = hssfSheet.createRow(0);
r.setHeight((short) 380);
HSSFCell c = null;
Map<String, Object> headInfo = null;
//处理excel表头
for(int i=0, len = headInfoList.size(); i < len; i++){
headInfo = headInfoList.get(i);
c = r.createCell(i);
c.setCellValue(headInfo.get("title").toString());
c.setCellStyle(cs);
if(headInfo.containsKey("columnWidth")){
hssfSheet.setColumnWidth(i, (short)(((Integer)headInfo.get("columnWidth") * 8) / ((double) 1 / 20)));
}
}
}
/**
* 4.写入内容部分
* @param hssfWorkbook
* @param hssfSheet
* @param startIndex 从1开始，多次调用需要加上前一次的dataList.size()
* @param headInfoList List<Map<String, Object>>
* key: title 列标题
* columnWidth 列宽
* dataKey 列对应的 dataList item key
* @param dataList
*/
public void writeContent(HSSFWorkbook hssfWorkbook,HSSFSheet hssfSheet ,int startIndex,
List<Map<String, Object>> headInfoList, List<Map<String, Object>> dataList){
Map<String, Object> headInfo = null;
HSSFRow r = null;
HSSFCell c = null;
//处理数据
Map<String, Object> dataItem = null;
Object v = null;
for (int i=0, rownum = startIndex, len = (startIndex + dataList.size()); rownum < len; i++,rownum++){
r = hssfSheet.createRow(rownum);
r.setHeightInPoints(16);
dataItem = dataList.get(i);
for(int j=0, jlen = headInfoList.size(); j < jlen; j++){
headInfo = headInfoList.get(j);
c = r.createCell(j);
v = dataItem.get(headInfo.get("dataKey").toString());
if (v instanceof String) {
c.setCellValue((String)v);
}else if (v instanceof Boolean) {
c.setCellValue((Boolean)v);
}else if (v instanceof Calendar) {
c.setCellValue((Calendar)v);
}else if (v instanceof Double) {
c.setCellValue((Double)v);
}else if (v instanceof Integer
|| v instanceof Long
|| v instanceof Short
|| v instanceof Float) {
c.setCellValue(Double.parseDouble(v.toString()));
}else if (v instanceof HSSFRichTextString) {
c.setCellValue((HSSFRichTextString)v);
}else {
if(v == null){
c.setCellValue("");
}else{
c.setCellValue(v.toString());
}
}
}
}
}
public void write2FilePath(HSSFWorkbook hssfWorkbook, String filePath) throws IOException{
FileOutputStream fileOut = null;
try{
fileOut = new FileOutputStream(filePath);
hssfWorkbook.write(fileOut);
}finally{
if(fileOut != null){
fileOut.close();
}
}
}
/**
* 导出excel
* code example:
List<Map<String, Object>> headInfoList = new ArrayList<Map<String,Object>>();
Map<String, Object> itemMap = new HashMap<String, Object>();
itemMap.put("title", "序号1");
itemMap.put("columnWidth", 25);
itemMap.put("dataKey", "XH1");
headInfoList.add(itemMap);
itemMap = new HashMap<String, Object>();
itemMap.put("title", "序号2");
itemMap.put("columnWidth", 50);
itemMap.put("dataKey", "XH2");
headInfoList.add(itemMap);
itemMap = new HashMap<String, Object>();
itemMap.put("title", "序号3");
itemMap.put("columnWidth", 25);
itemMap.put("dataKey", "XH3");
headInfoList.add(itemMap);
List<Map<String, Object>> dataList = new ArrayList<Map<String,Object>>();
Map<String, Object> dataItem = null;
for(int i=0; i < 100; i++){
dataItem = new HashMap<String, Object>();
dataItem.put("XH1", "data" + i);
dataItem.put("XH2", 88888888f);
dataItem.put("XH3", "脉兜V5..");
dataList.add(dataItem);
}
POIUtil.exportExcel2FilePath("test sheet 1","F:\\temp\\customer2.xls", headInfoList, dataList);
* @param sheetName sheet名称
* @param filePath 文件存储路径， 如：f:/a.xls
* @param headInfoList List<Map<String, Object>>
* key: title 列标题
* columnWidth 列宽
* dataKey 列对应的 dataList item key
* @param dataList List<Map<String, Object>> 导出的数据
* @throws java.io.IOException
*
*/
public static void exportExcel2FilePath(String sheetName, String filePath,
List<Map<String, Object>> headInfoList,
List<Map<String, Object>> dataList) throws IOException {
POIUtil poiUtil = new POIUtil();
//1.创建 Workbook
HSSFWorkbook hssfWorkbook = poiUtil.getHSSFWorkbook();
//2.创建 Sheet
HSSFSheet hssfSheet = poiUtil.getHSSFSheet(hssfWorkbook, sheetName);
//3.写入 head
poiUtil.writeHeader(hssfWorkbook, hssfSheet, headInfoList);
//4.写入内容
poiUtil.writeContent(hssfWorkbook, hssfSheet, 1, headInfoList, dataList);
//5.保存文件到filePath中
poiUtil.write2FilePath(hssfWorkbook, filePath);
}
}
jsp页面：
<script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery.form.js"></script>//不可缺少
<!-- 导出数据start -->
<form id="export_excel" action="" enctype="multipart/form-data" method="post">
<input type="hidden" id="export_select_value" name="export_select_value">
<input type="hidden" id="export_parking_id" name="export_parking_id" >
<input type="hidden" id="export_time_type" name="export_time_type" >
<input type="hidden" id="export_pay_state" name="export_pay_state" >
<input type="hidden" id="export_parking_type" name="export_parking_type">
<input type="hidden" id="export_start_time" name="export_start_time" >
<input type="hidden" id="export_end_time" name="export_end_time">
<input type="hidden" id="export_home_name" name="export_home_name">
</form>
<div class="ownerExport_div" style="height:200px;width: 500px;position: absolute;top: 30%;left: 40%;border: 1px solid #dddddd; background-color: #F8F8FF;z-index: 999999;padding-top:10ox;">
<div class="bi_div_title">记录批量下载</div>
<br>
<div style="text-align:center;">
<span style="color:red;font-size:13px;">注意：一次性只能导出2000条信息。</span><br>
</div>
<div style="clear: both;"></div>
<div class="ac_foot_div">
<button class="owner_export_qr" style="">导出</button>
<button class="owner_export_qx" style="width: 58px; height: 32px;border: 1px solid #ddd; margin-left: 10px;font-size: 12px;">取消</button>
</div>
</div>
<!-- 导出数据end -->
js代码：
on("click",".owner_export_qr",function(){
$("#export_start_time").val($("#search_start_date").val());
$("#export_end_time").val($("#search_end_date").val());
$("#export_parking_id").val($(".su_change_parking").val());
$("#export_select_value").val($(".search_input").val());
if($(".pay_state").val() != 0){
$("#export_pay_state").val($(".pay_state").val());
}else{
$("#export_pay_state").val("");
}
if($(".parking_type").val() != 0){
$("#export_parking_type").val($(".parking_type").val());
}else{
$("#export_parking_type").val("");
}
if($(".time_type").val() == 0){
$("#export_time_type").val("");
}else{
$("#export_time_type").val($(".time_type").val());
}
$("#export_home_name").val("记录导出");
$("#export_excel").ajaxSubmit({
url:'loginrecord/revenue_managent_down_export.htm',//后台请求路径
dataType: 'JSON',
success:function(data){
var obj= data;
$(".containers").css("display","none");
//验证导出数据不能为空
if(obj.exportQuantity<=0){
swal({
title: "操作提示:",
text: "请注意:没有可导出的数据",
type: "warning",
showCancelButton: true,
closeOnConfirm: true,
confirmButtonText: "确认",
confirmButtonColor: "#DD6B55",
cancelButtonText: "关闭",
}, function() {
});
}else if(obj.exportQuantity>2000){
swal({
title: "操作提示:",
text: "请注意:导出数量超过2000条。",
type: "warning",
showCancelButton: true,
closeOnConfirm: true,
confirmButtonText: "确认",
confirmButtonColor: "#DD6B55",
cancelButtonText: "关闭",
}, function() {
});
}else if(obj.exportQuantity<=2000 && obj.exportQuantity>0){
//path后台请求下载文件路径，src:excel名称
window.location.href="loginrecord/export_download.htm?path="+obj.path+"&src="+obj.file_name;
swal({
title: "导出成功",
type: "success",
timer: 3000,
showConfirmButton: false
});
window.setTimeout(function(){
window.location.reload();
}, 3100);
}else{
swal("操作失败", "数据异常,请刷新页面重试", "error");
}
},error:function errorMsg(){
swal({
title: "操作提示:",
text:"抱歉:网络故障,导出excel数据出现异常，请重新导出操作！",
showCancelButton: true,
closeOnConfirm: true,
confirmButtonText: "确认",
confirmButtonColor: "#DD6B55",
cancelButtonText: "关闭",
}, function(index) {
if(index==false||index==true){
window.location.reload();
}
});
}
});
}).on("click",".owner_export_qx",function(){
$(".ownerExport_div").hide();
});