使用jxls技術導入Excel模版數據

 

今天接到一個需求,要求我把Excel中的數據導入java程序中作爲查詢條件,查詢數據在做業務邏輯處理,剛接到任務第一反應用poi解析Excel獲取數據,後來想想,我們的項目中之前導出都是用的jxls實現,而且還挺方便的jxls還有自己的標籤(雖然標籤有點坑),就想着有導出功能jxls肯定也有導入功能啦!嘗試使用jxls導入,發現確實比我以前用poi自己手寫方便多了,下面是部分代碼及過程說明!

 

第一步:先確定好Excel導入的格式以及各表格字段值含義


 

第二步:定義好解析的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:生成一下解析的實體類VideoInfo(這個需要根據excel文件的列去手工寫一個)

 

public class VideoInfo {
	//序號
	private int index;
	//視頻名稱(全稱)
	private String videoName;
	//視頻資源ID
	private String resourceId;
	//上傳者
	private String upload;
	//課程說明
	private String content;
	//學校名稱
	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;
	}
	@Override
	public 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,我這裏項目用maven管理jar包的版本是1.0.6大家可以去下面這個maven資源庫下                載jar包  maven資源庫地址:http://mvnrepository.com/open-source/excel-libraries;

 

第五步:windows彈框選擇文件並解析Excel數據,這個windows文件框選擇文件我以前還是真沒做過在網上               找了一個很好用的方法請看代碼:

/**
	 * 打開文件選擇窗口選擇導入文件
	 * @return 返回文件路徑
	 * @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){ //打開文件                        
			String path = jFileChooser.getSelectedFile().getAbsolutePath();
			String fileName = jFileChooser.getSelectedFile().getName();
			String extName =fileName.substring(fileName.lastIndexOf(".")+1,fileName.length());
			System.out.println("當前文件路徑:"+path+";\n當前文件名:"+fileName+";\n當前文件擴展名:"+extName);
			if(null!=extName&&"xlsx".equals(extName)){
				return path;
			}else{
				System.out.println("您好,只能導入擴展名爲xlsx的Excel文件!");
				return null;
			}
		}else{
			System.out.println("沒有選中文件");
		 	return null;
		}
}


/**
	 * 使用jxls解析導入的Excel
	 * @param path 導入文件路徑
	 * @return List<VideoInfo> 導入對象集合
	 */
	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讀取Excel成功!");
	        }
		} catch (Exception e) {
			e.printStackTrace();
		}
		return videoInfoList;
	}

    其中有個靜態變量我是統一寫在配置類中的:

     public static String XML_CONFIG ="videoConfig.xml";

 

     第六步:寫一個main函數執行我們寫好的方法試一下

     

public class Test {
	public static void main(String[] args) {
		SyncDataServiceImpl syncDataService = new SyncDataServiceImpl();
		try {
			String filePath = syncDataService.getExcelPath();
			if(null!=filePath&&StringUtils.isNotBlank(filePath)){
				//導入Excel文件解析信息獲取資源id
				List<VideoInfo> infoList = syncDataService.getExcelDataForVideoInfo(filePath);
				System.out.println("infoList大小==="+infoList.size());
				for(VideoInfo video:infoList){
					System.out.println("打印ideoInfo詳細信息======"+video.toString());
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		
	}
}

 

    其中SyncDataServiceImpl類是我把前面二個方法寫到這個類裏面了,裏面還有一些其他的業務處理邏輯,就不貼上來了, new SyncDataServiceImpl()對象就可以調用剛纔的方法了!

 下面的運行截圖:

 

 

 運行結果截圖,導入Excel成功:



 
相比較POI來讀取Excel數據個人覺得jxls用起來還是更方便一點!同時jxls導出Excel也是比較方便的,有自己的標籤類似JSTL,以後有時間再寫一篇吧!希望能幫到需要的人,哈哈!有寫的不對的希望高手可以指點一下!謝謝!
 

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