easyexcel 到mysql 导入_springboot整合easyExcel导入导出，并操作mysql数据库

1、所需部分jar包：

com.alibaba

easyexcel

1.1.2-beat1

com.baomidou

mybatis-plus-boot-starter

3.1.2

com.alibaba

fastjson

1.2.59

2、代码段(部分代码，是从我springcloud练习项目中拿出来)

(1)控制层：这里需要注意的是，需要将你需要service接口当做参数传入saxReadListStringV2007()中，否则在easyExcel的监听器中，你无法进行数据库操作。直接在监听器中用@autowrid或者@resource注解，无法将service接口注入其中；

package com.lucifer.demo.controller;

import com.lucifer.common.utils.CommonResult;

import com.lucifer.demo.aspect.NoRepeatSubmit;

import com.lucifer.demo.pojo.Order;

import com.lucifer.demo.pojo.OrderDemo;

import com.lucifer.demo.service.OrderService;

import com.lucifer.demo.service.impl.OrderServiceImpl;

import com.lucifer.demo.util.excel.ExportExcelUtils;

import com.lucifer.demo.util.excel.ImportExcelUtils;

import lombok.extern.slf4j.Slf4j;

import org.springframework.cloud.context.config.annotation.RefreshScope;

import org.springframework.web.bind.annotation.GetMapping;

import org.springframework.web.bind.annotation.PostMapping;

import org.springframework.web.bind.annotation.RequestBody;

import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

import javax.servlet.http.HttpServletRequest;

import java.io.IOException;

import java.util.List;

/**

* @author: lucifer

* @date: 2019/8/28

* @description:

*/

@Slf4j

@RefreshScope

@RestController

public class TestController {

@Resource

private OrderService orderService;

@Resource

private OrderServiceImpl orderServiceImpl;

@PostMapping(value = "testImportExcel")

public CommonResult> testImportExcel(HttpServletRequest httpServletRequest) throws IOException {

long startTime = System.currentTimeMillis();

ImportExcelUtils.saxReadListStringV2007(httpServletRequest,orderServiceImpl);

long endTime = System.currentTimeMillis();

log.info("耗时:{}",(endTime-startTime)/1000);

return CommonResult.success(null);

}

@GetMapping(value = "testExportExcel")

public CommonResult> testExportExcel() throws IOException {

Listorders = orderService.orderQueryAll();

ExportExcelUtils.writeV2007(orders, Order.class);

return CommonResult.success(null);

}

@NoRepeatSubmit

@GetMapping(value = "selectOrders")

public CommonResult> selectOrders(){

Listorders = orderService.orderQueryAll();

return CommonResult.success(orders);

}

@PostMapping("insertOrder")

public CommonResultinsertOrder(@RequestBody OrderDemo order){

Integer id=orderService.insertOrder(order);

return CommonResult.success(id);

}

}

(2)Excel导入：

package com.lucifer.demo.util.excel;

import com.alibaba.excel.EasyExcelFactory;

import com.alibaba.excel.event.AnalysisEventListener;

import com.alibaba.excel.metadata.Sheet;

import com.alibaba.excel.support.ExcelTypeEnum;

import com.lucifer.demo.pojo.Order;

import com.lucifer.demo.service.OrderService;

import com.lucifer.demo.service.impl.OrderServiceImpl;

import lombok.extern.slf4j.Slf4j;

import org.springframework.web.multipart.MultipartFile;

import org.springframework.web.multipart.MultipartHttpServletRequest;

import javax.servlet.http.HttpServletRequest;

import java.io.BufferedInputStream;

import java.io.IOException;

import java.io.InputStream;

/**

* @author: lucifer

* @date: 2019/8/28

* @description: 导入Excel工具类

*/

@Slf4j

public class ImportExcelUtils {

/**

* 07版本excel读数据量大于1千行，内部采用回调方法.

*

* @throws IOException 简单抛出异常，真实环境需要catch异常,同时在finally中关闭流

*/

public static void saxReadListStringV2007(HttpServletRequest request, OrderServiceImpl orderServiceImpl) throws IOException {

MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;

MultipartFile requestFile = multipartRequest.getFile("file");

String originalFilename = requestFile.getOriginalFilename();

if (!originalFilename.endsWith(ExcelTypeEnum.XLS.getValue()) && !originalFilename.endsWith(ExcelTypeEnum.XLSX.getValue())) {

log.error("Excel导入错误文件名称：{}", originalFilename);

throw new RuntimeException("不是Excel格式文件");

}

InputStream inputStream = null;

try {

inputStream = requestFile.getInputStream();

if (inputStream == null) {

return;

}

BufferedInputStream bufferedInputStream = new BufferedInputStream(inputStream);

AnalysisEventListener excelListener = new ExcelListener(orderServiceImpl);

EasyExcelFactory.readBySax(bufferedInputStream, new Sheet(1, 1, Order.class), excelListener);

} finally {

inputStream.close();

}

}

}

(3)easyExcel监听器；在其中执行你的数据库操作；

package com.lucifer.demo.util.excel;

import com.alibaba.excel.context.AnalysisContext;

import com.alibaba.excel.event.AnalysisEventListener;

import com.alibaba.fastjson.JSON;

import com.alibaba.fastjson.JSONObject;

import com.lucifer.demo.pojo.OrderDemo;

import com.lucifer.demo.service.OrderService;

import com.lucifer.demo.service.impl.OrderServiceImpl;

import lombok.extern.slf4j.Slf4j;

import java.util.ArrayList;

import java.util.List;

/**

* @author: lucifer

* @date: 2019/8/28

* @description: 解析监听器

* 每解析一行会回调invoke()方法。

* 整个excel解析结束会执行doAfterAllAnalysed()方法

*/

@Slf4j

public class ExcelListener extends AnalysisEventListener {

private OrderServiceImpl orderServiceImpl;

public ExcelListener(OrderServiceImpl orderServiceImpl) {

super();

this.orderServiceImpl = orderServiceImpl;

}

private Listdata = new ArrayList<>();

@Override

public void invoke(Object object, AnalysisContext context) {

System.out.println(context.getCurrentSheet());

data.add(object);

if(data.size()>=100){

doSomething();

data.clear();

//data = new ArrayList<>();

}

}

@Override

public void doAfterAllAnalysed(AnalysisContext context) {

doSomething();

}

public void doSomething(){

Listlist=new ArrayList<>();

for (Object o:data) {

String jsonString = JSONObject.toJSONString(o);

JSONObject jsonObject = JSONObject.parseObject(jsonString);

OrderDemo OrderDemo = JSON.toJavaObject(jsonObject, OrderDemo.class);

list.add(OrderDemo);

}

orderServiceImpl.saveBatch(list);

}

public ListgetData() {

return data;

}

public void setData(Listdata) {

this.data = data;

}

}

(4)业务接口；

package com.lucifer.demo.service;

import com.lucifer.demo.pojo.Order;

import com.lucifer.demo.pojo.OrderDemo;

import java.util.List;

/**

* @author Lucifer

*/

public interface OrderService {

/**

* 查询所有订单

*

* @return

*/

ListorderQueryAll();

/**

* 新增订单

*

* @param order

* @return

*/

Integer insertOrder(OrderDemo order);

}

(5)实现类；

package com.lucifer.demo.service.impl;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

import com.lucifer.demo.dao.OrderDemoMapper;

import com.lucifer.demo.pojo.Order;

import com.lucifer.demo.pojo.OrderDemo;

import com.lucifer.demo.service.OrderService;

import lombok.extern.slf4j.Slf4j;

import org.springframework.stereotype.Service;

import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;

import java.util.List;

/**

* @author: lucifer

* @date: 2019/8/30

* @description:

*/

@Slf4j

@Service

@Transactional(rollbackFor = Exception.class)

public class OrderServiceImpl extends ServiceImplimplements OrderService {

@Resource

private OrderDemoMapper OrderDemoMapper;

@Override

public ListorderQueryAll() {

return OrderDemoMapper.selectAll();

}

@Override

public Integer insertOrder(OrderDemo order) {

return OrderDemoMapper.insert(order);

}

}

关于easyExcel导入导出重要代码就这么多了，其它代码就不粘贴其中了；