EXCEL与Mysql数据相互同步---EXCEL数据上传到Mysql,从Mysql下载数据到EXCEL_

EXCEL数据上传到Mysql,从Mysql下载数据到EXCEL
总结一下最近项目中用到的excel和mysql数据同步流程(Springboot里面使用的jdbcTemplate,如果要集成mybatis或者jpa可以更改下写入/查询部分的代码即可),实现EXCEL数据上传到Mysql,从Mysql下载数据到EXCEL,不喜勿喷.
maven工具,使用spring Boot

1.测试表

2.pom.xml

<parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.0.2.RELEASE</version><relativePath /> <!-- lookup parent from repository --></parent><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><java.version>1.8</java.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.apache.poi</groupId><artifactId>poi</artifactId><version>3.10.1</version><scope>compile</scope></dependency><dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml</artifactId><version>3.10.1</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-jdbc</artifactId><version>2.0.2.RELEASE</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build>

3.springboot启动

package com.huawei;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)
public class ExcelDemoApplication {public static void main(String[] args) {SpringApplication.run(ExcelDemoApplication.class, args);}
}

4.controller代码

package com.huawei.controller;import com.huawei.utils.CommUtil;
import com.huawei.utils.ExcelUtil;
import com.huawei.utils.JdbcUtils;
import org.apache.poi.ss.usermodel.Workbook;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.*;/*** Excel导入导出操作* @author songhj**/
@RestController
public class IndexViewController {private JdbcTemplate jdbcTemplate = new JdbcTemplate(JdbcUtils.getDataSource());/*** Excel数据导入* @param request* @param response* @param filePro* @return*/@RequestMapping(value="/importExcel")public Map<String, Object> importExcel(HttpServletRequest request,HttpServletResponse response, String filePro){Map<String, Object> map = new HashMap<>();String keys[] = {"id","dname","dlocal"};try {List<Map<String,String>> listData = ExcelUtil.getExcelData(request, "file",keys);if(listData.size() == 0){map.put("status",-1);map.put("message","上传失败，上传数据必须大于一条");return map;}//sql语句String sql = "insert into dept values (?,?,?)";for (Map<String, String> dataMap : listData) {//输出到控制台校验System.out.println(keys[0] + ":" + dataMap.get(keys[0]));System.out.println(keys[1] + ":" + dataMap.get(keys[1]));System.out.println(keys[2] + ":" + dataMap.get(keys[2]));jdbcTemplate.update(sql,dataMap.get(keys[0]),dataMap.get(keys[1]),dataMap.get(keys[2]));}map.put("listData", listData);map.put("code", 1);map.put("message", "导入成功");} catch (Exception e) {e.printStackTrace();}return map;}/*** 出具导出excel* @param request* @param response* @return* @throws IOException*/@RequestMapping(value = "/excelExport", method = { RequestMethod.GET, RequestMethod.POST })public Map<String,Object> excelExport(HttpServletRequest request, HttpServletResponse response) throws IOException {Map<String,Object> data = new HashMap<>();String fileName = CommUtil.formatTime("yyyyMMddHHmmss", new Date()) +".xls";String columnNames[] = {"编号","名称","地址"};String keys[] = {"id","dname","dlocal"};List<Map<String,Object>> listMap = new ArrayList<>();Map<String,Object> map = new HashMap<>();/*测试数据map.put("id", "50");map.put("dname", "物流部");map.put("dlocal", "深圳");listMap.add(map);map = new HashMap<>();map.put("id", "60");map.put("dname", "订单部");map.put("dlocal", "香港");listMap.add(map);*///查询写出String sql = "select * from dept";List<Map<String, Object>> list = jdbcTemplate.queryForList(sql);for (Map<String, Object> map_d : list) {map = new HashMap<>();map.putAll(map_d);listMap.add(map);}try {//创建WorkbookWorkbook wb = ExcelUtil.createWorkBook(listMap, keys, columnNames);//保存路径String savePath = request.getServletContext().getRealPath("/") + File.separator + fileName;// 创建文件流OutputStream stream = new FileOutputStream(savePath);// 写入数据wb.write(stream);// 关闭文件流stream.close();//返回结果data.put("code", 1);String downloadUrl = request.getScheme() + "://"+request.getServerName() + ":" + request.getServerPort() + "/" + fileName;data.put("download", downloadUrl);data.put("message", "文件流输出成功");//控制台输出下载路径System.out.println("\n数据导出成功，下载路径：" + downloadUrl);} catch (IOException e) {System.err.println(e.getMessage());data.put("code", -1);data.put("message", "下载出错");return data;}return data;}}

5.commUtils

package com.huawei.utils;import java.text.SimpleDateFormat;
import java.util.Date;public class CommUtil {public static boolean isNotNull(Object obj) {if ((obj != null) && (!obj.toString().equals(""))) {return true;}return false;}public static Date formatDate(String s, String format) {Date d = null;try {SimpleDateFormat dFormat = new SimpleDateFormat(format);d = dFormat.parse(s);} catch (Exception localException) {}return d;}public static String formatShortDate(Object v) {if (v == null)return null;SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");return df.format(v);}public static String formatTime(String format, Object v) {if (v == null)return null;if (v.equals(""))return "";SimpleDateFormat df = new SimpleDateFormat(format);return df.format(v);}}

6.ExcelUtils(核心)

package com.huawei.utils;import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.math.BigDecimal;
import java.util.*;/*** Excel导出** @author song*/
public class ExcelUtil {/*** @param listMap     导出的数据* @param keys        取每列数据的key* @param columnNames 列名* @return*/public static Workbook createWorkBook(List<Map<String, Object>> listMap, String keys[], String columnNames[]) {// 创建excel工作簿Workbook wb = new HSSFWorkbook();// 创建第一个sheet（页），并命名Sheet sheet = wb.createSheet("Sheet1");// 手动设置列宽。第一个参数表示要为第几列设；，第二个参数表示列的宽度，n为列高的像素数。for (int i = 0; i < keys.length; i++) {sheet.setColumnWidth((short) i, (short) (35 * 100));}/**// 创建两种单元格格式CellStyle cs = wb.createCellStyle();CellStyle cs2 = wb.createCellStyle();// 创建两种字体Font f = wb.createFont();Font f2 = wb.createFont();// 创建第一种字体样式（用于列名）f.setFontHeightInPoints((short) 10);f.setColor(IndexedColors.BLACK.getIndex());f.setBoldweight(Font.BOLDWEIGHT_BOLD);// 创建第二种字体样式（用于值）f2.setFontHeightInPoints((short) 10);f2.setColor(IndexedColors.BLACK.getIndex());// 设置第一种单元格的样式（用于列名）cs.setFont(f);cs.setBorderLeft(CellStyle.BORDER_THIN);cs.setBorderRight(CellStyle.BORDER_THIN);cs.setBorderTop(CellStyle.BORDER_THIN);cs.setBorderBottom(CellStyle.BORDER_THIN);cs.setAlignment(CellStyle.ALIGN_CENTER);// 设置第二种单元格的样式（用于值）cs2.setFont(f2);cs2.setBorderLeft(CellStyle.BORDER_THIN);cs2.setBorderRight(CellStyle.BORDER_THIN);cs2.setBorderTop(CellStyle.BORDER_THIN);cs2.setBorderBottom(CellStyle.BORDER_THIN);cs2.setAlignment(CellStyle.ALIGN_CENTER);*/// 创建第一行Row row = sheet.createRow((short) 0);//设置列名for (int i = 0; i < columnNames.length; i++) {Cell cell = row.createCell(i);cell.setCellValue(columnNames[i]);/**cell.setCellStyle(cs);*/}//设置每行每列的值for (short i = 0; i < listMap.size(); i++) {// Row 行,Cell 方格 , Row 和 Cell 都是从0开始计数的// 创建一行，在页sheet上Row row1 = sheet.createRow((short) i + 1);// 在row行上创建一个方格for (short j = 0; j < keys.length; j++) {Cell cell = row1.createCell(j);cell.setCellValue(listMap.get(i).get(keys[j]) == null ? " " : listMap.get(i).get(keys[j]).toString());/**cell.setCellStyle(cs2);*/}}return wb;}/*** 获取导入Excel的数据** @param request* @param filePro* @param keys* @return*/public static List<Map<String, String>> getExcelData(HttpServletRequest request, String filePro, String keys[]) {List<Map<String, String>> data = new ArrayList<>();try {if (!CommUtil.isNotNull(filePro)) {filePro = "file";}MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;MultipartFile file = (MultipartFile) multipartRequest.getFile(filePro);//获得文件名String fileName = file.getOriginalFilename();Workbook wb = null;if (fileName.endsWith("xlsx")) {wb = new XSSFWorkbook(file.getInputStream());} else {wb = new HSSFWorkbook(file.getInputStream());}//获得第一个表单Sheet sheet = wb.getSheetAt(0);//获得第一个表单的迭代器Iterator<Row> rows = sheet.rowIterator();int i = 0;while (rows.hasNext()) {i++;Map<String, String> rowMap = new HashMap<>();//获得行数据Row row = rows.next();//跳过头部if (row.getRowNum() == 0) {continue;}Iterator<Cell> cells = row.cellIterator();//获得行的迭代器int j = 0, k = 0;while (cells.hasNext()) {Cell cell = cells.next();//类型判断String key = "";//防止越界if (keys.length > cell.getColumnIndex()) {key = keys[cell.getColumnIndex()];}if (CommUtil.isNotNull(key)) {String value = formatCell(cell);rowMap.put(key, value);if (!CommUtil.isNotNull(value)) {j++; //记录空值得数量}k++; //记录多少列}}//如果i=j，说明一行都是空的if (j == k) {break;} else {data.add(rowMap);}if (i > 50001) {System.out.println("\n============导入数据大于五万条，立即停止===============");break;}}} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}return data;}/*** 反射机制 map转实体** @param classPath java类路径* @param listData  map数据* @return*/public static List<Object> factoryMapToJavaObj(String classPath, List<Map<String, String>> listData) {List<Object> list = new ArrayList<Object>();try {//获取类Class<?> c = Class.forName(classPath);//获取类的所有属性Field[] fs = c.getDeclaredFields();Object valObj = null;for (Map<String, String> mapData : listData) {//获取类的一个实例Object o = c.newInstance();for (Field field : fs) {String fieldName = field.getName();String fieldType = field.getType().getName();String value = mapData.get(fieldName);if (CommUtil.isNotNull(value)) {valObj = value.trim();} else {valObj = null;}if (Modifier.toString(field.getModifiers()).indexOf("static") != -1 || fieldName.equals("id")) {continue;}if (fieldType.equals("java.math.BigDecimal")) {if (CommUtil.isNotNull(valObj)) {if (valObj.toString().indexOf("%") != -1) {String newVal = valObj.toString().replaceAll("%", "");Double num = Double.valueOf(newVal) / 100;valObj = BigDecimal.valueOf(num);} else {valObj = BigDecimal.valueOf(Double.valueOf(value.replace(",", "")));}} else {valObj = BigDecimal.valueOf(0);}}if (fieldType.equals("java.util.Date") && CommUtil.isNotNull(value)) {valObj = CommUtil.formatDate(value.replace("/", "-"), "yyyy-MM-dd");}if (fieldType.equals("java.lang.Integer")) {if (CommUtil.isNotNull(valObj)) {valObj = Integer.valueOf(valObj.toString());} else {valObj = Integer.valueOf(0);}}if (fieldType.equals("java.lang.Long")) {if (CommUtil.isNotNull(valObj)) {valObj = Long.valueOf(valObj.toString());} else {valObj = Long.valueOf(0);}}if (CommUtil.isNotNull(valObj)) {//设置可访问私有属性field.setAccessible(true);//给o对象的属性赋值field.set(o, valObj);}}list.add(o);}} catch (ClassNotFoundException | InstantiationException | IllegalAccessException e) {e.printStackTrace();}return list;}public static void main(String[] args) {//      Map<String, String> map = new HashMap<>();
//      List l = new ArrayList<>();
//      l.add(map);
//      new ExcelUtil().factoryMapToJavaObj("com.qhiex.foundation.domain.po.system.BusMediInterface", l);}/*** 按类型取值* @param cell* @return*/public static String formatCell(Cell cell) {if (cell == null) {return "";}switch (cell.getCellType()) {//数值格式case HSSFCell.CELL_TYPE_NUMERIC:if (HSSFDateUtil.isCellDateFormatted(cell)) {//如果是日期格式return CommUtil.formatShortDate(HSSFDateUtil.getJavaDate(cell.getNumericCellValue()));} else {//字符时cell.setCellType(HSSFCell.CELL_TYPE_STRING);return cell.getStringCellValue();}//字符串case HSSFCell.CELL_TYPE_STRING:return cell.getStringCellValue();// 公式case HSSFCell.CELL_TYPE_FORMULA:return cell.getCellFormula();// 空白case HSSFCell.CELL_TYPE_BLANK:return "";// 布尔取值case HSSFCell.CELL_TYPE_BOOLEAN:return cell.getBooleanCellValue() + "";//错误类型case HSSFCell.CELL_TYPE_ERROR:break;}return "";}}

7.jdbcUtils

package com.huawei.utils;import com.alibaba.druid.pool.DruidDataSourceFactory;import javax.sql.DataSource;
import java.io.IOException;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Properties;/*** @author YangShuixiang`_`* @date 2018/12/12 16:05*/
public class JdbcUtils {private static DataSource ds;// 2. 创建连接池对象static {// 加载配置文件中的数据InputStream is = JdbcUtils.class.getResourceAsStream("/druid.properties");Properties pp = new Properties();try {pp.load(is);// 创建连接池，使用配置文件中的参数ds = DruidDataSourceFactory.createDataSource(pp);} catch (IOException e) {e.printStackTrace();} catch (Exception e) {e.printStackTrace();}}// 3. 定义公有的得到数据源的方法public static DataSource getDataSource() {return ds;}// 4. 定义得到连接对象的方法public static Connection getConnection() throws SQLException {return ds.getConnection();}// 5.定义关闭资源的方法public static void close(Connection conn, Statement stmt, ResultSet rs) {if (rs != null) {try {rs.close();} catch (SQLException e) {}}if (stmt != null) {try {stmt.close();} catch (SQLException e) {}}if (conn != null) {try {conn.close();} catch (SQLException e) {}}}// 6.重载关闭方法public static void close(Connection conn, Statement stmt) {close(conn, stmt, null);}
}

8.Html页面,随便写个,下面截图仅供参考
访问路径:http://127.0.0.1:8080/index.html
页面a标签需要注意id,与代码区保持一致
样式要不要无所谓

EXCEL与Mysql数据相互同步---EXCEL数据上传到Mysql,从Mysql下载数据到EXCEL__1相关推荐

EXCEL与Mysql数据相互同步---EXCEL数据上传到Mysql,从Mysql下载数据到EXCEL__2
使用mybatis,maven,springboot 排版比较乱,但是都复制全了,不调了自己记录下导出是全部导出的需求场景,正常业务中有按时间/操作人/等等等条件的- 依赖 <parent&g ...
XML 数据 BCP方式大批量的上传--学习（一）
1.是用xml数据,来进行解析上传数据. 2.例如: 3. <Batch batchNo="20100617"> <Code Code=&q ...
ajax实现下拉列表回显,layui实现下拉复选功能的例子(包括数据的回显与上传)
一.layui下拉复选实现的背景:实现一个管理员拥有多个权限二. 具体实现: //依赖资源 //页面显示角色: xm-select-search xm-select-skin="defa ...
ajax文件后台提交,有关文件上传非ajax提交得到后台数据问题
下文给大家介绍文件上传非ajax提交得到后台数据的操作方法,具体详情如下所示: .......... 根据id获得表单数据然后发送ajax请求,获得后台返回数据,处理数据,完美. 但是如果需要上传文件 ...
毕设 CC2530+esp8266使用AT指令上传与获取onenet服务器的数据
CC2530+esp8266使用AT指令上传与获取onenet服务器的数据我们首先看效果视频, VID_20221023_175149(0)(0) 我一开始做这个项目的时候我发现对于这个CC2530 ...
毕业设计——音乐播放系统可以自己上传歌曲 SSM框架 MYSQL数据库功能齐全
音乐播放系统可以自己上传歌曲 SSM框架 MYSQL数据库功能齐全可以注册账号登录在线上传歌曲发表评论在线听音乐登录注册首页播放音乐以及在线评论个人后台页面查看我发布的以及上 ...
MySQL自动备份脚本和ftp上传脚本
MySQL自动备份脚本,并上传ftp 在日常的工作中Mysql数据库备份是长期需要去做的一件运维工作,但是人工手动去做这一机械的动作确实必要性不高,所以写个脚本来跑是比较好的. mysql备份脚本 # ...
上传文件页面回显_数据回显、删除以及excel导出
数据回显当点击某个按钮跳转某个页面之前,发送请求到后台进行数据查询,最后将查询结果返回给前端页面,前端页面获取数据,最后呈现出来的效果是就回显的效果. 示例代码: 前端代码: Controller ...
php读取excel数据在页面显示,PHP上传多个Excel表格里的数据到数据库然后在页面显示...
//上传excelpublic function uploadExcel(){ //获取当前的请求信息,或者使用助手函数request() $request = hinkRequest::instan ...

EXCEL与Mysql数据相互同步---EXCEL数据上传到Mysql,从Mysql下载数据到EXCEL__1

EXCEL与Mysql数据相互同步---EXCEL数据上传到Mysql,从Mysql下载数据到EXCEL__1相关推荐

最新文章

热门文章