ssm解析excel表导入数据到数据库
1、maven配置相应jar
<dependency>
<groupId>org.apache.poigroupId>
<artifactId>poiartifactId>
<version>3.8-beta3version>
<type>jartype>
<scope>compilescope>
dependency>
<dependency>
<groupId>org.apache.poigroupId>
<artifactId>poi-ooxmlartifactId>
<version>3.9version>
<type>jartype>
dependency>2、创建excel工具类文件ExcelUtils
import java.io.IOException;
import java.io.InputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
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;
public class ExcelUtils {
private final static String excel2003L =".xls"; //2003- 版本的excel
private final static String excel2007U =".xlsx"; //2007+ 版本的excel
/**
* 描述：获取IO流中的数据，组装成List>对象
* @param in,fileName
* @return
* @throws IOException
*/
public List> getBankListByExcel(InputStream in,String fileName) throws Exception{
List> list = null;
//创建Excel工作薄
Workbook work = this.getWorkbook(in,fileName);
if(null == work){
throw new Exception("创建Excel工作薄为空！");
}
Sheet sheet = null; //页数
Row row = null; //行数
Cell cell = null; //列数
list = new ArrayList>();
//遍历Excel中所有的sheet
for (int i = 0; i < work.getNumberOfSheets(); i++) {
sheet = work.getSheetAt(i);
if(sheet==null){continue;}
//遍历当前sheet中的所有行
for (int j = sheet.getFirstRowNum(); j <= sheet.getLastRowNum(); j++) {
row = sheet.getRow(j);
if(row==null||row.getFirstCellNum()==j){continue;}
//遍历所有的列
List 3、实体类people.java
public class people {
private Integer id;
private String userName;
private String password;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName == null ? null : userName.trim();
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password == null ? null : password.trim();
}
}4、创建peopleMapper.java
public interface peopleMapper {
int deleteByPrimaryKey(Integer id);
int insert(people record);
int insertSelective(people record);
people selectByPrimaryKey(Integer id);
int updateByPrimaryKeySelective(people record);
int updateByPrimaryKey(people record);
void insertInfoBatch(List list);
} peopleMapper.xml
version="1.0" encoding="UTF-8" ?>
"-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
"cn.com.vtech.dao.peopleMapper" >
id="BaseResultMap" type="cn.com.entity.people" >
<id column="id" property="id" jdbcType="INTEGER" />
<result column="username" property="userName" jdbcType="VARCHAR" />
<result column="password" property="password" jdbcType="VARCHAR" />
id="Base_Column_List" >
id, username, password
id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
delete from people
where id = #{id,jdbcType=INTEGER}
id="insert" parameterType="cn.com.vtech.entity.people" >
insert into people (id, username, password)
values (#{id,jdbcType=INTEGER}, #{userName,jdbcType=VARCHAR}, #{password,jdbcType=VARCHAR})
id="insertSelective" parameterType="cn.com.vtech.entity.people" >
insert into people
"(" suffix=")" suffixOverrides="," >
<if test="id != null" >
id,
if>
<if test="userName != null" >
username,
if>
<if test="password != null" >
password,
if>
"values (" suffix=")" suffixOverrides="," >
<if test="id != null" >
#{id,jdbcType=INTEGER},
if>
<if test="userName != null" >
#{userName,jdbcType=VARCHAR},
if>
<if test="password != null" >
#{password,jdbcType=VARCHAR},
if>
id="updateByPrimaryKeySelective" parameterType="cn.com.vtech.entity.people" >
update people
<set >
<if test="userName != null" >
user_name = #{userName,jdbcType=VARCHAR},
if>
<if test="password != null" >
password = #{password,jdbcType=VARCHAR},
if>
set>
where id = #{id,jdbcType=INTEGER}
id="updateByPrimaryKey" parameterType="cn.com.vtech.entity.people" >
update people
set username = #{userName,jdbcType=VARCHAR},
password = #{password,jdbcType=VARCHAR}
where id = #{id,jdbcType=INTEGER}
id="insertInfoBatch" parameterType="java.util.List">
insert into people (id, username, password)
values
"list" item="item" index="index" separator=",">
(#{id,jdbcType=INTEGER}, #{userName,jdbcType=VARCHAR}, #{password,jdbcType=VARCHAR})
5、service层
创建peopleService.java
public interface PeopleService {
String ajaxUploadExcel(HttpServletRequest request,HttpServletResponse response);
}
创建peopleServiceImpl.java
@Service("PeopleService")
public class PeopleServiceImpl implements PeopleService{
@Resource(name="peopleMapper")
private peopleMapper peopleMapper;
public String ajaxUploadExcel(HttpServletRequest request,HttpServletResponse response){
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
MultipartFile file = multipartRequest.getFile("file");
if(file.isEmpty()){
try {
throw new Exception("文件不存在！");
} catch (Exception e) {
e.printStackTrace();
}
}
InputStream in =null;
try {
in = file.getInputStream();
} catch (IOException e) {
e.printStackTrace();
}
List> listob = null;
try {
listob = new ExcelUtils().getBankListByExcel(in,file.getOriginalFilename());
} catch (Exception e) {
e.printStackTrace();
}
for (int i = 0; i < listob.size(); i++) {
/* List
System.out.println(listob.get(i));
}
for (int i = 0; i < listob.size(); i++) {
List 6、Contrller层
创建ExcelController.java
@Controller
@RequestMapping("/upload")
public class ExcelController {
@Resource(name="PeopleService")
private PeopleService PeopleService;
@ResponseBody
@RequestMapping(value="ajaxUpload.do",method={RequestMethod.GET,RequestMethod.POST})
public String ajaxUploadExcel(HttpServletRequest request,HttpServletResponse response) throws Exception {
return PeopleService.ajaxUploadExcel(request, response);
} 7、前端页面
前端使用的是layui，此处贴出关键代码
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
<legend>选完文件后不自动上传legend>
fieldset>
<div class="layui-upload">
<button type="button" class="layui-btn layui-btn-normal" id="test8">选择文件button>
<button type="button" class="layui-btn" id="test9">开始上传button>
div>
<script type="text/javascript" src="../../layui/layui.js">script>
<script type="text/javascript" src="../../js/jquery-3.2.1.min.js" >script>
<script>
layui.use('upload', function(){
var $ = layui.jquery
,upload = layui.upload;
var url=path+'uploadExcel/ajaxUpload.do';
//选完文件后不自动上传
upload.render({
elem: '#test8'
,url: url
,auto: false
,accept:"file" //指定允许上传的文件类型
//,multiple: true
,bindAction: '#test9'
,done: function(res){
console.log("上传成功")
}
});
});
script>8、excel表中格式
ID USERNAME PASSWORD
3 rr rr123
4 jj2 jjp