JXLS使用方法（文件上传读取）xlsx文件读取

1.官方文档：http://jxls.sourceforge.net/reference/reader.html

2.demo git地址：https://bitbucket.org/leonate/jxls-demo

3.maven添加 

 <dependency>
    <groupId>org.jxls</groupId>
    <artifactId>jxls-reader</artifactId>
    <version>2.0.2</version>
</dependency> 

4.xml配置文件（视上传文件结构配置，这里就最简单的文件作配置）

<?xml version="1.0" encoding="ISO-8859-1"?>
<workbook>
<worksheet name="Sheet1">（文件页数）
<section startRow="0" endRow="0">（表头开始至结束行）
</section>
<loop startRow="1" endRow="1" items="list" var="soImportDTO" varType="com.domain.dto.SoImportDTO">（开始循环读取文件数据，配置开始行，items映射的list var映射的bean varType 类路径）
<section startRow="1" endRow="1">（循环开始行）
<mapping row="1" col="0">soImportDTO.extno</mapping>
<mapping row="1" col="1">soImportDTO.whcode</mapping>
<mapping row="1" col="2">soImportDTO.type</mapping>
<mapping row="1" col="3">soImportDTO.soLineNo</mapping>
<mapping row="1" col="4">soImportDTO.sku</mapping>
<mapping row="1" col="5">soImportDTO.qty</mapping>
<mapping row="1" col="6">soImportDTO.supplierCode</mapping>
<mapping row="1" col="7">soImportDTO.supplierName</mapping>
<mapping row="1" col="8">soImportDTO.carrierCode</mapping>
<mapping row="1" col="9">soImportDTO.carrierName</mapping>
<mapping row="1" col="10">soImportDTO.shipDate</mapping>
<mapping row="1" col="11">soImportDTO.carNo</mapping>
<mapping row="1" col="12">soImportDTO.shipFromContact</mapping>
<mapping row="1" col="13">soImportDTO.shipFromPhone</mapping>
<mapping row="1" col="14">soImportDTO.remark</mapping>（以上是配置每列对应的bean的属性）
</section>
<loopbreakcondition>（结束条件配置）
<rowcheck offset="0">
<cellcheck offset="0">以什么条件结束写在这里 若是为空结束这不填</cellcheck>
</rowcheck>
</loopbreakcondition>
</loop>
</worksheet>
</workbook>

 表头样式

读取文件代码：

List<SoImportDTO> soImportDTOList = new ArrayList<>();
        Map<String,List<SoImportDTO>> beans = new HashMap<>();
            InputStream inputXML = new BufferedInputStream(getClass().getResourceAsStream("/xmlMapper/so-import.xml"));
            XLSReader mainReader = null;
            try {
                mainReader = ReaderBuilder.buildFromXML( inputXML );
            } catch (IOException e1) {
                log.error("读取配置文件失败"+e1);
                throw new ApplicationException(ErrorCode.READ_CONFIG_FAIL.code(), ErrorCode.READ_CONFIG_FAIL.message());
            } catch (SAXException e1) {
                log.error("读取配置文件失败"+e1);
                throw new ApplicationException(ErrorCode.READ_CONFIG_FAIL.code(), ErrorCode.READ_CONFIG_FAIL.message());
            }
            InputStream inputXLS = null;
            try {
                inputXLS = file.getInputStream();
            } catch (IOException e1) {
                throw new ApplicationException(ErrorCode.READ_ORDER_FAIL.code(), ErrorCode.READ_ORDER_FAIL.message());
            }
            List<SoImportDTO> soImportDTOs = new ArrayList<>();
            beans.put("list", soImportDTOs);
            ConvertUtils.register(new DateConverter(), Date.class);
            try {
                XLSReadStatus readStatus = mainReader.read(inputXLS, beans);
            } catch (InvalidFormatException e1) {
                log.error("将数据映射到bean时出错"+e1);
                throw new ApplicationException(ErrorCode.MAPPED_FAIL.code(), ErrorCode.MAPPED_FAIL.message());
            } catch (IOException e1) {
                log.error("将数据映射到bean时出错"+e1);
                throw new ApplicationException(ErrorCode.MAPPED_FAIL.code(), ErrorCode.MAPPED_FAIL.message());
            }

完成上述之后操作之后 数据就已经map进bean里 到beans里面去拿list就ok