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SpringBoot實現(xiàn)Excel文件批量上傳導(dǎo)入數(shù)據(jù)庫

Spring boot + Spring data jpa + Thymeleaf
批量插入 + POI讀取 + 文件上傳

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pom.xml:



 org.apache.poi
 poi
 3.17



 org.apache.poi
 poi-ooxml
 3.17

upload.html:

文件

如果自己的項目中使用了Spring  security,頁面提交文件之后,會出現(xiàn)403的錯誤,最快的解決辦法,如下:

http.csrf().ignoringAntMatchers("/upload/**").

在security的配置文件中,加入上邊的代碼即可。當(dāng)然還有其他的辦法,大家可在網(wǎng)上查找。 

Controller:

package org.meng.project.controller;
 
import org.meng.project.service.ExcelService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
 
import javax.servlet.http.HttpServletRequest;
 
/**
 *

上傳Controller類

*

上傳文件的Controller

* @Author MengMeng * @Date 2018/10/6

* @version: 0.1 * @since JDK 1.80_144 */ @Controller @RequestMapping("/upload") public class UploadController { @Autowired private HttpServletRequest request; @Autowired private ExcelService excelService; //跳轉(zhuǎn)到上傳文件的頁面 @RequestMapping(value = "", method = RequestMethod.GET) public String goUpload() { //跳轉(zhuǎn)到 templates 中tools目錄下的 upload.html return "tools/upload"; } @RequestMapping(value = "/excel",method = RequestMethod.POST) public String upload(MultipartFile file, Model model) throws Exception { boolean flag = excelService.getExcel(file); if(flag){ model.addAttribute("Message", "上傳成功"); }else{ model.addAttribute("Message", "上傳失敗"); } return "tools/upload"; } }

Excel實體:

package org.meng.project.entity;
 
import javax.persistence.*;
import java.io.Serializable;
import java.util.Objects;
 
/**
 * 

用戶實體類

* @ClassName User * @Author MengMeng * @Date 2018/10/6

* @Version: 0.1 * @Since JDK 1.80_171 */ @Entity @Table(name = "test", schema = "project") public class Excel implements Serializable { private static final long serialVersionUID = 1L; @Id @Column(length=36) private String id; @Column(length=45,nullable=false,unique=true) private String username; @Column(length=100,nullable=false,unique=true) private String email; @Column(length=45,nullable=false) private String password; @Column(length=45) private String role; public Excel() { } public Excel(Excel user){ this.id = user.getId(); this.username = user.getUsername(); this.role = user.getRole(); this.email = user.getEmail(); this.password = user.getPassword(); } //get 和 set }

Service:

package org.meng.project.service;
 
import com.alibaba.fastjson.JSON;
 
import org.meng.project.entity.*;
import org.springframework.data.jpa.repository.Modifying;
import org.springframework.data.jpa.repository.Query;
import org.springframework.web.multipart.MultipartFile;
 
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.transaction.Transactional;
 
/**
 *

Excel的Service類接口

*

Excel的Service類接口,與Excel有關(guān)的業(yè)務(wù)邏輯方法

* @Author MengMeng * @Date 2018/10/6

* @version: 0.1 * @since JDK 1.80_144 */ public interface ExcelService { boolean getExcel(MultipartFile file) throws Exception; }

ServiceImpl:

package org.meng.project.service;
 
import org.apache.poi.EncryptedDocumentException;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.meng.project.entity.*;
import org.meng.project.repository.ExcelRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
 
import java.io.IOException;
import java.util.*;
 
/**
 * 

Excel的Service類

*

Excel的Service類,與User有關(guān)的業(yè)務(wù)邏輯方法

* @Author MengMeng * @Date 2018/10/6 * @version: 0.1 * @since JDK 1.80_144 */ @Service public class ExcelServiceImpl implements ExcelService { @Autowired private ExcelRepository excelRepository; @Override public boolean getExcel(MultipartFile file) throws Exception { // TODO Auto-generated method stub List list = new ArrayList(); //1.得到上傳的表 Workbook workbook2 = WorkbookFactory.create(file.getInputStream()); //2、獲取test工作表 Sheet sheet2 = workbook2.getSheet("test"); //獲取表的總行數(shù) int num = sheet2.getLastRowNum(); //System.out.println(num); //總列數(shù) int col = sheet2.getRow(0).getLastCellNum(); //遍歷excel每一行 for (int j = 0; j <= num; j++) { Row row1 = sheet2.getRow(j); //如果單元格中有數(shù)字或者其他格式的數(shù)據(jù),則調(diào)用setCellType()轉(zhuǎn)換為string類型 Cell cell1 = row1.getCell(0); cell1.setCellType(CellType.STRING); //獲取表中第i行,第2列的單元格 Cell cell2 = row1.getCell(1); //excel表的第i行,第3列的單元格 Cell cell3 = row1.getCell(2); cell3.setCellType(CellType.STRING); Cell cell4 = row1.getCell(3); Cell cell5 = row1.getCell(4); //這里new 一個對象,用來裝填從頁面上傳的Excel數(shù)據(jù),字段根據(jù)上傳的excel決定 Excel excel= new Excel(); excel.setId(cell1.getStringCellValue()); excel.setEmail(cell2.getStringCellValue()); excel.setPassword(cell3.getStringCellValue()); excel.setRole(cell4.getStringCellValue()); excel.setUsername(cell5.getStringCellValue()); list.add(excel); } excelRepository.saveAll(list); return true; } }

注意:需統(tǒng)一數(shù)據(jù)庫和Excel表中數(shù)據(jù)值的類型,不然會出現(xiàn)Cannot get a STRING value from a NUMERIC cell等錯誤。

Repository:

package org.meng.project.repository;
 
import org.meng.project.entity.Excel;
import org.meng.project.repository.base.BaseRepository;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.repository.Query;
import org.springframework.stereotype.Repository;
 
/**
 *

Excel的DAO類接口

*

Excel的DAO類接口,與Excel有關(guān)的持久化操作方法

* @Author MengMeng * @Date 2018/10/6

* @version: 0.1 * @since JDK 1.80_144 */ @Repository public interface ExcelRepository extends BaseRepository { }

即可實現(xiàn)文件上傳:

SpringBoot實現(xiàn)Excel文件批量上傳導(dǎo)入數(shù)據(jù)庫

以上就是本文的全部內(nèi)容,希望對大家的學(xué)習(xí)有所幫助,也希望大家多多支持創(chuàng)新互聯(lián)。


當(dāng)前題目:SpringBoot實現(xiàn)Excel文件批量上傳導(dǎo)入數(shù)據(jù)庫
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