使用jxls技术导入Excel模版数据

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今天接到一个需求，要求我把Excel中的数据导入java程序中作为查询条件，查询数据在做业务逻辑处理，刚接到任务第一反应用poi解析Excel获取数据，后来想想，我们的项目中之前导出都是用的jxls实现，而且还挺方便的jxls还有自己的标签（虽然标签有点坑），就想着有导出功能jxls肯定也有导入功能啦！尝试使用jxls导入，发现确实比我以前用poi自己手写方便多了，下面是部分代码及过程说明！

第一步：先确定好Excel导入的格式以及各表格字段值的含义

第二步：定义好解析的XML--videoConfig.xml

<?xml version="1.0" encoding="UTF-8"?> 
<workbook> <worksheet name="Sheet1"> <section startRow="0" endRow="0"/> <loop startRow="1" endRow="1" items="videoInfoList" var="videoInfo" varType="com.iflytek.weike.job.bo.VideoInfo"> <section startRow="1" endRow="1"> <mapping row="1" col="0">videoInfo.index</mapping> <mapping row="1" col="1">videoInfo.videoName</mapping> <mapping row="1" col="2">videoInfo.resourceId</mapping> <mapping row="1" col="3">videoInfo.upload</mapping> <mapping row="1" col="4">videoInfo.content</mapping> <mapping row="1" col="5">videoInfo.schoolName</mapping></section> <loopbreakcondition> <rowcheck offset="0"><cellcheck offset="0"></cellcheck> </rowcheck> </loopbreakcondition> </loop> </worksheet> 
</workbook>

第三步：生成一下解析的实体类VideoInfo（这个需要根据excel文件的列去手工写一个）

public class VideoInfo {//序号private int index;//视频名称（全称）private String videoName;//视频资源IDprivate String resourceId;//上传者private String upload;//课程说明private String content;//学校名称private String schoolName;public VideoInfo() {}public VideoInfo(int index, String videoName, String resourceId, String upload, String content, String schoolName) {super();this.index = index;this.videoName = videoName;this.resourceId = resourceId;this.upload = upload;this.content = content;this.schoolName = schoolName;}public int getIndex() {return index;}public void setIndex(int index) {this.index = index;}public String getVideoName() {return videoName;}public void setVideoName(String videoName) {this.videoName = videoName;}public String getResourceId() {return resourceId;}public void setResourceId(String resourceId) {this.resourceId = resourceId;}public String getUpload() {return upload;}public void setUpload(String upload) {this.upload = upload;}public String getContent() {return content;}public void setContent(String content) {this.content = content;}public String getSchoolName() {return schoolName;}public void setSchoolName(String schoolName) {this.schoolName = schoolName;}@Overridepublic String toString() {return "VideoInfo [index=" + index + ", videoName=" + videoName + ", resourceId=" + resourceId + ", upload="+ upload + ", content=" + content + ", schoolName=" + schoolName + "]";}}

第四步：添加jxls的jar包，我这里项目用maven管理jar包的版本是1.0.6大家可以去下面这个maven资源库下载jar包 maven资源库地址：http://mvnrepository.com/open-source/excel-libraries；

第五步：windows弹框选择文件并解析Excel数据，这个windows文件框选择文件我以前还是真没做过在网上找了一个很好用的方法请看代码：

/*** 打开文件选择窗口选择导入文件* @return 返回文件路径* @throws Exception*/public String getExcelPath() throws Exception{UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());JFileChooser jFileChooser=new JFileChooser();int i = jFileChooser.showOpenDialog(null); if(i== jFileChooser.APPROVE_OPTION){ //打开文件                        String path = jFileChooser.getSelectedFile().getAbsolutePath();String fileName = jFileChooser.getSelectedFile().getName();String extName =fileName.substring(fileName.lastIndexOf(".")+1,fileName.length());System.out.println("当前文件路径："+path+";\n当前文件名："+fileName+";\n当前文件扩展名："+extName);if(null!=extName&&"xlsx".equals(extName)){return path;}else{System.out.println("您好,只能导入扩展名为xlsx的Excel文件！");return null;}}else{System.out.println("没有选中文件");return null;}
}/*** 使用jxls解析导入的Excel* @param path 导入文件路径* @return List<VideoInfo> 导入对象集合*/public List<VideoInfo> getExcelDataForVideoInfo(String path){List<VideoInfo> videoInfoList = new ArrayList<VideoInfo>();try {InputStream inputXML = new BufferedInputStream(getClass().getClassLoader().getResourceAsStream(ConsForSystem.XML_CONFIG));XLSReader mainReader = ReaderBuilder.buildFromXML( inputXML );InputStream inputXLS = new BufferedInputStream(new FileInputStream(new File(path)));VideoInfo videoInfo = new VideoInfo();Map<String,Object> beans = new HashMap<String,Object>();beans.put("videoInfo", videoInfo);beans.put("videoInfoList", videoInfoList);XLSReadStatus readStatus = mainReader.read( inputXLS, beans);if(readStatus.isStatusOK()){System.out.println("jxls读取Excel成功！");}} catch (Exception e) {e.printStackTrace();}return videoInfoList;}

其中有个静态变量我是统一写在配置类中的：

public static String XML_CONFIG ="videoConfig.xml";

第六步：写一个main函数执行我们写好的方法试一下

public class Test {public static void main(String[] args) {SyncDataServiceImpl syncDataService = new SyncDataServiceImpl();try {String filePath = syncDataService.getExcelPath();if(null!=filePath&&StringUtils.isNotBlank(filePath)){//导入Excel文件解析信息获取资源idList<VideoInfo> infoList = syncDataService.getExcelDataForVideoInfo(filePath);System.out.println("infoList大小==="+infoList.size());for(VideoInfo video:infoList){System.out.println("打印ideoInfo详细信息======"+video.toString());}}} catch (Exception e) {e.printStackTrace();}}
}

其中SyncDataServiceImpl类是我把前面二个方法写到这个类里面了，里面还有一些其他的业务处理逻辑，就不贴上来了， new SyncDataServiceImpl()对象就可以调用刚才的方法了！

下面的运行截图：