maven环境下的ssm框架上传excel 案例

1、maven环境下，pom.xml的配置：

 <dependency>
       <groupId>org.apache.poi</groupId>
       <artifactId>poi-ooxml</artifactId>
       <version>3.14</version>
   </dependency>

2、Spring配置文件spring-servlet.xml：

<!-- 支持上传文件 -->

    <bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="defaultEncoding" value="utf-8"></property>
        <property name="maxUploadSize" value="10485760000"></property>
        <property name="maxInMemorySize" value="40960"></property>
    </bean>

3、ExcelUtil

package com.hyc.www.utils;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;


public class ExcelUtil {
    
    public static List<String> getDataByExcel(InputStream is) throws IOException {
        
        List<String> result = new ArrayList<String>();
        //创建Excel，读取文件内容
        XSSFWorkbook workbook = null;
        //获取第一个工作表
        XSSFSheet sheet = null;
        try {
            workbook = new XSSFWorkbook(is);
            //获取第一个工作表
            sheet = workbook.getSheetAt(0);
            
            //获取sheet中第一行行号
            int firstRowNum = sheet.getFirstRowNum();
            //获取sheet中最后一行行号
            int lastRowNum = sheet.getLastRowNum();
            
            //循环插入数据
            for(int i=firstRowNum+1;i<=lastRowNum;i++){
                XSSFRow row = sheet.getRow(i);
                XSSFCell goodsNumCell = row.getCell(0);//
                if(goodsNumCell!=null){
                    String goodsNum = goodsNumCell.getStringCellValue();
                    System.out.println("-------------------goodsNum:"+goodsNum);
                    result.add(goodsNum);
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if(workbook!=null) {
                workbook.close();
            } 
        }
        return result;
    }
}

4、Controller:

    
    @RequestMapping(value="/uploadExcel",method=RequestMethod.POST,produces = "text/html;charset=UTF-8")
    @ResponseBody
    public String uploadExcel(@RequestParam("file") CommonsMultipartFile file,HttpServletRequest request) {
        String inId = request.getParameter("inId");
        System.out.println("-------------------inId:"+inId);
        String skuCode = request.getParameter("skuCode");
        System.out.println("-------------------skuCode:"+skuCode);
        File fo = new File(file.getOriginalFilename());
        try {
            FileUtils.copyInputStreamToFile(file.getInputStream(),fo);
            List<String> result = ExcelUtil.getDataByExcel(FileUtils.openInputStream(fo));
            return "success";
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            return "fail";
        }
    }
    

5、前端页面：

使用jquery.form.js 插件异步上传文件：

 <form id="formDemo">
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">&times;</span><span class="sr-only">Close</span></button>
                    <h4 class="modal-title">导入产品序列号</h4>

                </div>
                <div class="modal-body">

                    <div class="row">
                        <div class="form-group" style="text-align: center;">

                            <label title="选择文件" for="inputImage" class="btn btn-primary" >
                                <input type="file" accept="excel/*" name="file" id="inputImage" >
                            </label>
                        </div>
                    </div>

                </div>

                <div class="modal-footer">
                    <button type="button" class="btn btn-white" data-dismiss="modal">关闭</button>
                    <button type="button" class="btn btn-primary" id="importBtnSave">上传</button>
                </div>
            </form>

//上传导入文件
    $("#importBtnSave").click(function(){

        let selectedRows = $("#editStockInDetailTab").bootstrapTable('getSelections');
        if (selectedRows.length <= 0) {
            alert('请选择要导入的数据');
            return;
        }
        if (selectedRows.length > 1) {
            alert('一次只能选择一行导入');
            return;
        }

        let skuCode = selectedRows[0].skuCode;
        let inId = $("#editInId").val();

        $("#formDemo").ajaxSubmit({
            url: baseUrl + '/Inventory/repair/StockIn/uploadExcel?inId='+inId+'&skuCode='+skuCode,
            type: "post", /*设置表单以post方法提交*/
            dataType: "json", /*设置返回值类型为文本*/
            success: function (data) {
                alert(data);
                console.info(data);
            },
            error: function (error) {
                alert(error);
                console.info(error);
            }

        });
    });